Remove unused option -femit-extern-decls
[ghc-hetmet.git] / docs / users_guide / flags.xml
1 <?xml version="1.0" encoding="iso-8859-1"?>
2   <sect1 id="flag-reference">
3     <title>Flag reference</title>
4
5     <para>This section is a quick-reference for GHC's command-line
6     flags.  For each flag, we also list its static/dynamic status (see
7     <xref linkend="static-dynamic-flags"/>), and the flag's opposite
8     (if available).</para>
9
10     <sect2>
11       <title>Help and verbosity options</title>
12
13       <para><xref linkend="options-help"/></para>
14
15       <informaltable>
16         <tgroup cols="4" align="left" colsep="1" rowsep="1">
17           <thead>
18             <row>
19               <entry>Flag</entry>
20               <entry>Description</entry>
21               <entry>Static/Dynamic</entry>
22               <entry>Reverse</entry>
23             </row>
24           </thead>
25           <tbody>
26             <row>
27               <entry><option>-?</option></entry>
28               <entry>help</entry>
29               <entry>mode</entry>
30               <entry>-</entry>
31             </row>
32             <row>
33               <entry><option>-help</option></entry>
34               <entry>help</entry>
35               <entry>mode</entry>
36               <entry>-</entry>
37             </row>
38             <row>
39               <entry><option>-v</option></entry>
40               <entry>verbose mode (equivalent to <option>-v3</option>)</entry>
41               <entry>dynamic</entry>
42               <entry>-</entry>
43             </row>
44             <row>
45               <entry><option>-v</option><replaceable>n</replaceable></entry>
46               <entry>set verbosity level</entry>
47               <entry>dynamic</entry>
48               <entry>-</entry>
49             </row>
50             <row>
51               <entry><option>-V</option></entry>
52               <entry>display GHC version</entry>
53               <entry>mode</entry>
54               <entry>-</entry>
55             </row>
56             <row>
57               <entry><option>&ndash;&ndash;version</option></entry>
58               <entry>display GHC version</entry>
59               <entry>mode</entry>
60               <entry>-</entry>
61             </row>
62             <row>
63               <entry><option>&ndash;&ndash;numeric-version</option></entry>
64               <entry>display GHC version (numeric only)</entry>
65               <entry>mode</entry>
66               <entry>-</entry>
67             </row>
68             <row>
69               <entry><option>&ndash;&ndash;print-libdir</option></entry>
70               <entry>display GHC library directory</entry>
71               <entry>mode</entry>
72               <entry>-</entry>
73             </row>
74             <row>
75               <entry><option>-ferror-spans</option></entry>
76               <entry>output full span in error messages</entry>
77               <entry>static</entry>
78               <entry>-</entry>
79             </row>
80             <row>
81               <entry><option>-Rghc-timing</option></entry>
82               <entry>Summarise timing stats for GHC (same as <literal>+RTS -tstderr</literal>)</entry>
83               <entry>static</entry>
84               <entry>-</entry>
85             </row>
86           </tbody>
87         </tgroup>
88       </informaltable>
89
90     </sect2>
91     <sect2>
92       <title>Which phases to run</title>
93       
94       <para><xref linkend="options-order"/></para>
95
96       <informaltable>
97         <tgroup cols="4" align="left" colsep="1" rowsep="1">
98           <thead>
99             <row>
100               <entry>Flag</entry>
101               <entry>Description</entry>
102               <entry>Static/Dynamic</entry>
103               <entry>Reverse</entry>
104             </row>
105           </thead>
106           <tbody>
107             <row>
108               <entry><option>-E</option></entry>
109               <entry>Stop after preprocessing (<literal>.hspp</literal> file)</entry>
110               <entry>mode</entry>
111               <entry>-</entry>
112             </row>
113             <row>
114               <entry><option>-C</option></entry>
115               <entry>Stop after generating C (<literal>.hc</literal> file)</entry>
116               <entry>mode</entry>
117               <entry>-</entry>
118             </row>
119             <row>
120               <entry><option>-S</option></entry>
121               <entry>Stop after generating assembly (<literal>.s</literal> file)</entry>
122               <entry>mode</entry>
123               <entry>-</entry>
124             </row>
125             <row>
126               <entry><option>-c</option></entry>
127               <entry>Do not link</entry>
128               <entry>dynamic</entry>
129               <entry>-</entry>
130             </row>
131             <row>
132               <entry><option>-x</option> <replaceable>suffix</replaceable></entry>
133               <entry>Override default behaviour for source files</entry>
134               <entry>static</entry>
135               <entry>-</entry>
136             </row>
137           </tbody>
138         </tgroup>
139       </informaltable>
140     </sect2>
141
142      <sect2>
143       <title>Alternative modes of operation</title>
144       
145       <para><xref linkend="modes"/></para>
146
147       <informaltable>
148         <tgroup cols="4" align="left" colsep="1" rowsep="1">
149           <thead>
150             <row>
151               <entry>Flag</entry>
152               <entry>Description</entry>
153               <entry>Static/Dynamic</entry>
154               <entry>Reverse</entry>
155             </row>
156           </thead>
157           <tbody>
158             <row>
159               <entry><option>--interactive</option></entry>
160               <entry>Interactive mode - normally used by just running <command>ghci</command></entry>
161               <entry>mode</entry>
162               <entry>-</entry>
163             </row>
164             <row>
165               <entry><option>--make</option></entry>
166               <entry>Build a multi-module Haskell program, automatically figuring out dependencies. Likely to be much easier, and faster, than using <command>make</command>.</entry>
167               <entry>mode</entry>
168               <entry>-</entry>
169             </row>
170             <row>
171               <entry><option>-e <replaceable>expr</replaceable></option></entry>
172               <entry>Evaluate <replaceable>expr</replaceable></entry>
173               <entry>mode</entry>
174               <entry>-</entry>
175             </row>
176             <row>
177               <entry><option>-M</option></entry>
178               <entry>Generate dependency information suitable for use in a <filename>Makefile</filename>.</entry>
179               <entry>mode</entry>
180               <entry>-</entry>
181             </row>
182           </tbody>
183         </tgroup>
184       </informaltable>
185     </sect2>
186
187     <sect2>
188       <title>Redirecting output</title>
189       
190       <para><xref linkend="options-output"/></para>
191
192       <informaltable>
193         <tgroup cols="4" align="left" colsep="1" rowsep="1">
194           <thead>
195             <row>
196               <entry>Flag</entry>
197               <entry>Description</entry>
198               <entry>Static/Dynamic</entry>
199               <entry>Reverse</entry>
200             </row>
201           </thead>
202           <tbody>
203             <row>
204               <entry><option>-hcsuf</option> <replaceable>suffix</replaceable></entry>
205               <entry>set the suffix to use for intermediate C files</entry>
206               <entry>dynamic</entry>
207               <entry>-</entry>
208             </row>
209             <row>
210               <entry><option>-hidir</option> <replaceable>dir</replaceable></entry>
211               <entry>set directory for interface files</entry>
212               <entry>dynamic</entry>
213               <entry>-</entry>
214             </row>
215             <row>
216               <entry><option>-hisuf</option> <replaceable>suffix</replaceable></entry>
217               <entry>set the suffix to use for interface files</entry>
218               <entry>dynamic</entry>
219               <entry>-</entry>
220             </row>
221             <row>
222               <entry><option>-o</option> <replaceable>filename</replaceable></entry>
223               <entry>set output filename</entry>
224               <entry>dynamic</entry>
225               <entry>-</entry>
226             </row>
227             <row>
228               <entry><option>-odir</option> <replaceable>dir</replaceable></entry>
229               <entry>set output directory</entry>
230               <entry>dynamic</entry>
231               <entry>-</entry>
232             </row>
233             <row>
234               <entry><option>-ohi</option> <replaceable>filename</replaceable></entry>
235               <entry>set the filename in which to put the interface</entry>
236               <entry>dynamic</entry>
237               <entry></entry>
238             </row>
239             <row>
240               <entry><option>-osuf</option> <replaceable>suffix</replaceable></entry>
241               <entry>set the output file suffix</entry>
242               <entry>dynamic</entry>
243               <entry>-</entry>
244             </row>
245             <row>
246               <entry><option>-stubdir</option> <replaceable>dir</replaceable></entry>
247               <entry>redirect FFi stub files</entry>
248               <entry>dynamic</entry>
249               <entry>-</entry>
250             </row>
251           </tbody>
252         </tgroup>
253       </informaltable>
254     </sect2>
255
256     <sect2>
257       <title>Keeping intermediate files</title>
258       
259       <para><xref linkend="keeping-intermediates"/></para>
260       
261       <informaltable>
262         <tgroup cols="4" align="left" colsep="1" rowsep="1">
263           <thead>
264             <row>
265               <entry>Flag</entry>
266               <entry>Description</entry>
267               <entry>Static/Dynamic</entry>
268               <entry>Reverse</entry>
269             </row>
270           </thead>
271           <tbody>
272             <row>
273               <entry><option>-keep-hc-file</option></entry>
274               <entry>retain intermediate <literal>.hc</literal> files</entry>
275               <entry>dynamic</entry>
276               <entry>-</entry>
277             </row>
278             <row>
279               <entry><option>-keep-s-file</option></entry>
280               <entry>retain intermediate <literal>.s</literal> files</entry>
281               <entry>dynamic</entry>
282               <entry>-</entry>
283             </row>
284             <row>
285               <entry><option>-keep-raw-s-file</option></entry>
286               <entry>retain intermediate <literal>.raw_s</literal> files</entry>
287               <entry>dynamic</entry>
288               <entry>-</entry>
289             </row>
290             <row>
291               <entry><option>-keep-tmp-files</option></entry>
292               <entry>retain all intermediate temporary files</entry>
293               <entry>dynamic</entry>
294               <entry>-</entry>
295             </row>
296           </tbody>
297         </tgroup>
298       </informaltable>
299     </sect2>
300
301     <sect2>
302       <title>Temporary files</title>
303       
304       <para><xref linkend="temp-files"/></para>
305
306       <informaltable>
307         <tgroup cols="4" align="left" colsep="1" rowsep="1">
308           <thead>
309             <row>
310               <entry>Flag</entry>
311               <entry>Description</entry>
312               <entry>Static/Dynamic</entry>
313               <entry>Reverse</entry>
314             </row>
315           </thead>
316           <tbody>
317             <row>
318               <entry><option>-tmpdir</option></entry>
319               <entry>set the directory for temporary files</entry>
320               <entry>dynamic</entry>
321               <entry>-</entry>
322             </row>
323           </tbody>
324         </tgroup>
325       </informaltable>
326     </sect2>
327
328     <sect2>
329       <title>Finding imports</title>
330
331       <para><xref linkend="search-path"/></para>
332
333       <informaltable>
334         <tgroup cols="4" align="left" colsep="1" rowsep="1">
335           <thead>
336             <row>
337               <entry>Flag</entry>
338
339               <entry>Description</entry>
340               <entry>Static/Dynamic</entry>
341               <entry>Reverse</entry>
342             </row>
343           </thead>
344           <tbody>
345             <row>
346               <entry><option>-i</option><replaceable>dir1</replaceable>:<replaceable>dir2</replaceable>:...</entry>
347               <entry>add <replaceable>dir</replaceable>,
348                   <replaceable>dir2</replaceable>, etc. to import path</entry>
349               <entry>dynamic</entry>
350               <entry>-</entry>
351             </row>
352             <row>
353               <entry><option>-i</option></entry>
354               <entry>Empty the import directory list</entry>
355               <entry>dynamic</entry>
356               <entry>-</entry>
357             </row>
358           </tbody>
359         </tgroup>
360       </informaltable>
361     </sect2>
362
363     <sect2>
364       <title>Interface file options</title>
365
366       <para><xref linkend="hi-options"/></para>
367
368       <informaltable>
369         <tgroup cols="4" align="left" colsep="1" rowsep="1">
370           <thead>
371             <row>
372               <entry>Flag</entry>
373
374               <entry>Description</entry>
375               <entry>Static/Dynamic</entry>
376               <entry>Reverse</entry>
377             </row>
378           </thead>
379           <tbody>
380             <row>
381               <entry><option>-ddump-hi</option></entry>
382               <entry>Dump the new interface to stdout</entry>
383               <entry>dynamic</entry>
384               <entry>-</entry>
385             </row>
386             <row>
387               <entry><option>-ddump-hi-diffs</option></entry>
388               <entry>Show the differences vs. the old interface</entry>
389               <entry>dynamic</entry>
390               <entry>-</entry>
391             </row>
392             <row>
393               <entry><option>-ddump-minimal-imports</option></entry>
394               <entry>Dump a minimal set of imports</entry>
395               <entry>dynamic</entry>
396               <entry>-</entry>
397             </row>
398             <row>
399               <entry><option>--show-iface</option> <replaceable>file</replaceable></entry>
400               <entry>Read the interface in
401               <replaceable>file</replaceable> and dump it as text to
402               <literal>stdout</literal>.</entry>
403               <entry>mode</entry>
404               <entry>-</entry>
405             </row>
406           </tbody>
407         </tgroup>
408       </informaltable>
409     </sect2>
410     
411     <sect2>
412       <title>Recompilation checking</title>
413
414       <para><xref linkend="recomp"/></para>
415
416       <informaltable>
417         <tgroup cols="4" align="left" colsep="1" rowsep="1">
418           <thead>
419             <row>
420               <entry>Flag</entry>
421
422               <entry>Description</entry>
423               <entry>Static/Dynamic</entry>
424               <entry>Reverse</entry>
425             </row>
426           </thead>
427           <tbody>
428             <row>
429               <entry><option>-fforce-recomp</option></entry>
430               <entry>Turn off recompilation checking; implied by any
431               <option>-ddump-X</option> option</entry>
432               <entry>dynamic</entry>
433               <entry><option>-fno-force-recomp</option></entry>
434             </row>
435           </tbody>
436         </tgroup>
437       </informaltable>
438     </sect2>
439
440     <sect2>
441       <title>Interactive-mode options</title>
442       
443       <para><xref linkend="ghci-dot-files"/></para>
444
445       <informaltable>
446         <tgroup cols="4" align="left" colsep="1" rowsep="1">
447           <thead>
448             <row>
449               <entry>Flag</entry>
450               <entry>Description</entry>
451               <entry>Static/Dynamic</entry>
452               <entry>Reverse</entry>
453             </row>
454           </thead>
455           <tbody>
456             <row>
457               <entry><option>-ignore-dot-ghci</option></entry>
458               <entry>Disable reading of <filename>.ghci</filename> files</entry>
459               <entry>static</entry>
460               <entry>-</entry>
461             </row>
462             <row>
463               <entry><option>-read-dot-ghci</option></entry>
464               <entry>Enable reading of <filename>.ghci</filename> files</entry>
465               <entry>static</entry>
466               <entry>-</entry>
467             </row>
468           </tbody>
469         </tgroup>
470       </informaltable>
471     </sect2>
472
473     <sect2>
474       <title>Packages</title>
475
476       <para><xref linkend="packages"/></para>
477
478       <informaltable>
479         <tgroup cols="4" align="left" colsep="1" rowsep="1">
480           <thead>
481             <row>
482               <entry>Flag</entry>
483               <entry>Description</entry>
484               <entry>Static/Dynamic</entry>
485               <entry>Reverse</entry>
486             </row>
487           </thead>
488           <tbody>
489             <row>
490               <entry><option>-package</option> <replaceable>P</replaceable></entry>
491               <entry>Expose package <replaceable>P</replaceable></entry>
492               <entry>dynamic</entry>
493               <entry>-</entry>
494             </row>
495             <row>
496               <entry><option>-hide-all-packages</option></entry>
497               <entry>Hide all packages by default</entry>
498               <entry>static</entry>
499               <entry>-</entry>
500             </row>
501             <row>
502               <entry><option>-hide-package</option> <replaceable>name</replaceable></entry>
503               <entry>Hide package <replaceable>P</replaceable></entry>
504               <entry>dynamic</entry>
505               <entry>-</entry>
506             </row>
507             <row>
508               <entry><option>-ignore-package</option> <replaceable>name</replaceable></entry>
509               <entry>Ignore package <replaceable>P</replaceable></entry>
510               <entry>dynamic</entry>
511               <entry>-</entry>
512             </row>
513             <row>
514               <entry><option>-package-conf</option> <replaceable>file</replaceable></entry>
515               <entry>Load more packages from <replaceable>file</replaceable></entry>
516               <entry>dynamic</entry>
517               <entry>-</entry>
518             </row>
519             <row>
520               <entry><option>-no-user-package-conf</option></entry>
521               <entry>Don't load the user's package config file.</entry>
522               <entry>dynamic</entry>
523               <entry>-</entry>
524             </row>
525           </tbody>
526         </tgroup>
527       </informaltable>
528     </sect2>
529
530     <sect2>
531       <title>Language options</title>
532
533       <para><xref linkend="options-language"/></para>
534
535       <informaltable>
536         <tgroup cols="4" align="left" colsep="1" rowsep="1">
537           <thead>
538             <row>
539               <entry>Flag</entry>
540               <entry>Description</entry>
541               <entry>Static/Dynamic</entry>
542               <entry>Reverse</entry>
543             </row>
544           </thead>
545           <tbody>
546             <row>
547               <entry><option>-fallow-overlapping-instances</option></entry>
548               <entry>Enable <link linkend="instance-overlap">overlapping instances</link></entry>
549               <entry>dynamic</entry>
550               <entry><option>-fno-allow-overlapping-instances</option></entry>
551             </row>
552             <row>
553               <entry><option>-fallow-incoherent-instances</option></entry>
554               <entry>Enable <link linkend="instance-overlap">incoherent instances</link>.  
555               Implies <option>-fallow-overlapping-instances</option> </entry>
556               <entry>dynamic</entry>
557               <entry><option>-fno-allow-incoherent-instances</option></entry>
558             </row>
559             <row>
560               <entry><option>-fallow-undecidable-instances</option></entry>
561               <entry>Enable <link linkend="undecidable-instances">undecidable instances</link></entry>
562               <entry>dynamic</entry>
563               <entry><option>-fno-allow-undecidable-instances</option></entry>
564             </row>
565             <row>
566               <entry><option>-fcontext-stack=N</option><replaceable>n</replaceable></entry>
567               <entry>set the <link linkend="undecidable-instances">limit for context reduction</link></entry>
568               <entry>dynamic</entry>
569               <entry><option>20</option></entry>
570             </row>
571             <row>
572               <entry><option>-farrows</option></entry>
573               <entry>Enable <link linkend="arrow-notation">arrow
574               notation</link> extension</entry>
575               <entry>dynamic</entry>
576               <entry><option>-fno-arrows</option></entry>
577             </row>
578             <row>
579               <entry><option>-ffi</option> or <option>-fffi</option></entry>
580               <entry>Enable <link linkend="ffi">foreign function interface</link> (implied by
581               <option>-fglasgow-exts</option>)</entry>
582               <entry>dynamic</entry>
583               <entry><option>-fno-ffi</option></entry>
584             </row>
585             <row>
586               <entry><option>-fgenerics</option></entry>
587               <entry>Enable <link linkend="generic-classes">generic classes</link></entry>
588               <entry>dynamic</entry>
589               <entry><option>-fno-fgenerics</option></entry>
590             </row>
591             <row>
592               <entry><option>-fglasgow-exts</option></entry>
593               <entry>Enable most language extensions</entry>
594               <entry>dynamic</entry>
595               <entry><option>-fno-glasgow-exts</option></entry>
596             </row>
597             <row>
598               <entry><option>-fimplicit-params</option></entry>
599               <entry>Enable <link linkend="implicit-parameters">Implicit Parameters</link>.
600               Implied by <option>-fglasgow-exts</option>.</entry>
601               <entry>dynamic</entry>
602               <entry><option>-fno-implicit-params</option></entry>
603             </row>
604             <row>
605               <entry><option>-firrefutable-tuples</option></entry>
606               <entry>Make tuple pattern matching irrefutable</entry>
607               <entry>dynamic</entry>
608               <entry><option>-fno-irrefutable-tuples</option></entry>
609             </row>
610             <row>
611               <entry><option>-fno-implicit-prelude</option></entry>
612               <entry>Don't implicitly <literal>import Prelude</literal></entry>
613               <entry>dynamic</entry>
614               <entry><option>-fimplicit-prelude</option></entry>
615             </row>
616             <row>
617               <entry><option>-fno-monomorphism-restriction</option></entry>
618               <entry>Disable the <link linkend="monomorphism">monomorphism restriction</link></entry>
619               <entry>dynamic</entry>
620               <entry><option>-fmonomorphism-restriction</option></entry>
621             </row>
622             <row>
623               <entry><option>-fno-mono-pat-binds</option></entry>
624               <entry>Make <link linkend="monomorphism">pattern bindings polymorphic</link></entry>
625               <entry>dynamic</entry>
626               <entry><option>-fmono-pat-binds</option></entry>
627             </row>
628             <row>
629               <entry><option>-fextended-default-rules</option></entry>
630               <entry>Use GHCi's <link linkend="extended-default-rules">extended default rules</link> in a normal module</entry>
631               <entry>dynamic</entry>
632               <entry><option>-fno-extended-default-rules</option></entry>
633             </row>
634             <row>
635               <entry><option>-fscoped-type-variables</option></entry>
636               <entry>Enable <link linkend="scoped-type-variables">lexically-scoped type variables</link>.
637               Implied by <option>-fglasgow-exts</option>.</entry>
638               <entry>dynamic</entry>
639               <entry><option>-fno-scoped-type-variables</option></entry>
640             </row>
641             <row>
642               <entry><option>-fth</option></entry>
643               <entry>Enable <link linkend="template-haskell">Template Haskell</link>. 
644                 No longer implied by <option>-fglasgow-exts</option>.</entry>
645               <entry>dynamic</entry>
646               <entry><option>-fno-th</option></entry>
647             </row>
648             <row>
649               <entry><option>-fbang-patterns</option></entry>
650               <entry>Enable <link linkend="sec-bang-patterns">bang patterns</link>.</entry>
651               <entry>dynamic</entry>
652               <entry><option>-fno-bang-patterns</option></entry>
653             </row>
654           </tbody>
655         </tgroup>
656       </informaltable>
657     </sect2>
658
659     <sect2>
660       <title>Warnings</title>
661       
662       <para><xref linkend="options-sanity"/></para>
663
664     <informaltable>
665       <tgroup cols="4" align="left" colsep="1" rowsep="1">
666         <thead>
667           <row>
668             <entry>Flag</entry>
669             <entry>Description</entry>
670             <entry>Static/Dynamic</entry>
671             <entry>Reverse</entry>
672           </row>
673         </thead>
674         <tbody>
675           <row>
676             <entry><option>-W</option></entry>
677             <entry>enable normal warnings</entry>
678             <entry>dynamic</entry>
679             <entry><option>-w</option></entry>
680           </row>
681           <row>
682             <entry><option>-w</option></entry>
683             <entry>disable all warnings</entry>
684             <entry>dynamic</entry>
685             <entry>-</entry>
686           </row>
687           <row>
688             <entry><option>-Wall</option></entry>
689             <entry>enable all warnings</entry>
690             <entry>dynamic</entry>
691             <entry><option>-w</option></entry>
692           </row>
693           <row>
694             <entry><option>-Werror</option></entry>
695             <entry>make warnings fatal</entry>
696             <entry>dynamic</entry>
697             <entry></entry>
698           </row>
699
700           <row>
701             <entry><option>-fwarn-deprecations</option></entry>
702             <entry>warn about uses of functions &amp; types that are deprecated</entry>
703             <entry>dynamic</entry>
704             <entry><option>-fno-warn-deprecations</option></entry>
705           </row>
706
707           <row>
708             <entry><option>-fwarn-duplicate-exports</option></entry>
709             <entry>warn when an entity is exported multiple times</entry>
710             <entry>dynamic</entry>
711             <entry><option>-fno-warn-duplicate-exports</option></entry>
712           </row>
713
714           <row>
715             <entry><option>-fwarn-hi-shadowing</option></entry>
716             <entry>warn when a <literal>.hi</literal> file in the
717             current directory shadows a library</entry>
718             <entry>dynamic</entry>
719             <entry><option>-fno-warn-hi-shadowing</option></entry>
720           </row>
721
722           <row>
723             <entry><option>-fwarn-incomplete-patterns</option></entry>
724             <entry>warn when a pattern match could fail</entry>
725             <entry>dynamic</entry>
726             <entry><option>-fno-warn-incomplete-patterns</option></entry>
727           </row>
728
729           <row>
730             <entry><option>-fwarn-incomplete-record-updates</option></entry>
731             <entry>warn when a record update could fail</entry>
732             <entry>dynamic</entry>
733             <entry><option>-fno-warn-incomplete-record-updates</option></entry>
734           </row>
735
736           <row>
737             <entry><option>-fwarn-missing-fields</option></entry>
738             <entry>warn when fields of a record are uninitialised</entry>
739             <entry>dynamic</entry>
740             <entry><option>-fno-warn-missing-fields</option></entry>
741           </row>
742
743           <row>
744             <entry><option>-fwarn-missing-methods</option></entry>
745             <entry>warn when class methods are undefined</entry>
746             <entry>dynamic</entry>
747             <entry><option>-fno-warn-missing-methods</option></entry>
748           </row>
749
750           <row>
751             <entry><option>-fwarn-missing-signatures</option></entry>
752             <entry>warn about top-level functions without signatures</entry>
753             <entry>dynamic</entry>
754             <entry><option>-fno-warn-missing-signatures</option></entry>
755           </row>
756
757           <row>
758             <entry><option>-fwarn-name-shadowing</option></entry>
759             <entry>warn when names are shadowed</entry>
760             <entry>dynamic</entry>
761             <entry><option>-fno-warn-name-shadowing</option></entry>
762           </row>
763
764           <row>
765             <entry><option>-fwarn-orphans</option></entry>
766             <entry>warn when the module contains "orphan" instance declarations
767             or rewrite rules</entry>
768             <entry>dynamic</entry>
769             <entry><option>-fno-warn-orphans</option></entry>
770           </row>
771
772           <row>
773             <entry><option>-fwarn-overlapping-patterns</option></entry>
774             <entry>warn about overlapping patterns</entry>
775             <entry>dynamic</entry>
776             <entry><option>-fno-warn-overlapping-patterns</option></entry>
777           </row>
778
779           <row>
780             <entry><option>-fwarn-simple-patterns</option></entry>
781             <entry>warn about lambda-patterns that can fail</entry>
782             <entry>dynamic</entry>
783             <entry><option>-fno-warn-simple-patterns</option></entry>
784           </row>
785
786           <row>
787             <entry><option>-fwarn-type-defaults</option></entry>
788             <entry>warn when defaulting happens</entry>
789             <entry>dynamic</entry>
790             <entry><option>-fno-warn-type-defaults</option></entry>
791           </row>
792
793           <row>
794             <entry><option>-fwarn-unused-binds</option></entry>
795             <entry>warn about bindings that are unused</entry>
796             <entry>dynamic</entry>
797             <entry><option>-fno-warn-unused-binds</option></entry>
798           </row>
799
800           <row>
801             <entry><option>-fwarn-unused-imports</option></entry>
802             <entry>warn about unnecessary imports</entry>
803             <entry>dynamic</entry>
804             <entry><option>-fno-warn-unused-imports</option></entry>
805           </row>
806
807           <row>
808             <entry><option>-fwarn-unused-matches</option></entry>
809             <entry>warn about variables in patterns that aren't used</entry>
810             <entry>dynamic</entry>
811             <entry><option>-fno-warn-unused-matches</option></entry>
812           </row>
813
814           </tbody>
815         </tgroup>
816       </informaltable>
817
818     </sect2>
819     <sect2>
820       <title>Optimisation levels</title>
821
822       <para><xref linkend="options-optimise"/></para>
823
824       <informaltable>
825         <tgroup cols="4" align="left" colsep="1" rowsep="1">
826           <thead>
827             <row>
828               <entry>Flag</entry>
829               <entry>Description</entry>
830               <entry>Static/Dynamic</entry>
831               <entry>Reverse</entry>
832             </row>
833           </thead>
834           <tbody>
835             <row>
836               <entry><option>-O</option></entry>
837               <entry>Enable default optimisation (level 1)</entry>
838               <entry>dynamic</entry>
839               <entry><option>-O0</option></entry>
840             </row>
841             <row>
842               <entry><option>-O</option><replaceable>n</replaceable></entry>
843               <entry>Set optimisation level <replaceable>n</replaceable></entry>
844               <entry>dynamic</entry>
845               <entry><option>-O0</option></entry>
846             </row>
847           </tbody>
848         </tgroup>
849       </informaltable>
850               
851     </sect2>
852     <sect2>
853       <title>Individual optimisations</title>
854
855       <para><xref linkend="options-f"/></para>
856
857       <informaltable>
858         <tgroup cols="4" align="left" colsep="1" rowsep="1">
859           <thead>
860             <row>
861               <entry>Flag</entry>
862               <entry>Description</entry>
863               <entry>Static/Dynamic</entry>
864               <entry>Reverse</entry>
865             </row>
866           </thead>
867           <tbody>
868             <row>
869               <entry><option>-fcase-merge</option></entry>
870               <entry>Enable case-merging</entry>
871               <entry>dynamic</entry>
872               <entry><option>-fno-case-merge</option></entry>
873             </row>
874
875             <row>
876               <entry><option>-fdicts-strict</option></entry>
877               <entry>Make dictionaries strict</entry>
878               <entry>static</entry>
879               <entry><option>-fno-dicts-strict</option></entry>
880             </row>
881
882             <row>
883               <entry><option>-fdo-eta-reduction</option></entry>
884               <entry>Enable eta-reduction</entry>
885               <entry>dynamic</entry>
886               <entry><option>-fno-do-eta-reduction</option></entry>
887             </row>
888
889             <row>
890               <entry><option>-fdo-lambda-eta-expansion</option></entry>
891               <entry>Enable lambda eta-reduction</entry>
892               <entry>dynamic</entry>
893               <entry><option>-fno-do-lambda-eta-expansion</option></entry>
894             </row>
895
896             <row>
897               <entry><option>-fexcess-precision</option></entry>
898               <entry>Enable excess intermediate precision</entry>
899               <entry>dynamic</entry>
900               <entry><option>-fno-excess-precision</option></entry>
901             </row>
902
903             <row>
904               <entry><option>-frules-off</option></entry>
905               <entry>Switch off all rewrite rules (including rules
906               generated by automatic specialisation of overloaded functions)</entry>
907               <entry>static</entry>
908               <entry><option>-frules-off</option></entry>
909             </row>
910
911             <row>
912               <entry><option>-fignore-asserts</option></entry>
913               <entry>Ignore assertions in the source</entry>
914               <entry>dynamic</entry>
915               <entry><option>-fno-ignore-asserts</option></entry>
916             </row>
917
918             <row>
919               <entry><option>-fignore-interface-pragmas</option></entry>
920               <entry>Ignore pragmas in interface files</entry>
921               <entry>dynamic</entry>
922               <entry><option>-fno-ignore-interface-pragmas</option></entry>
923             </row>
924
925             <row>
926               <entry><option>-fliberate-case-threshold</option></entry>
927               <entry>Tweak the liberate-case optimisation (default: 10)</entry>
928               <entry>static</entry>
929               <entry><option>-fno-liberate-case-threshold</option></entry>
930             </row>
931
932             <row>
933               <entry><option>-fomit-interface-pragmas</option></entry>
934               <entry>Don't generate interface pragmas</entry>
935               <entry>dynamic</entry>
936               <entry><option>-fno-omit-interface-pragmas</option></entry>
937             </row>
938
939             <row>
940               <entry><option>-fmax-worker-args</option></entry>
941               <entry>If a worker has that many arguments, none will be
942                 unpacked anymore (default: 10)</entry>
943               <entry>static</entry>
944               <entry>-</entry>
945             </row>
946
947             <row>
948               <entry><option>-fmax-simplifier-iterations</option></entry>
949               <entry>Set the max iterations for the simplifier</entry>
950               <entry>dynamic</entry>
951               <entry>-</entry>
952             </row>
953
954             <row>
955               <entry><option>-fno-state-hack</option></entry>
956               <entry>Turn off the "state hack" whereby any lambda with a real-world state token
957               as argument is considered to be single-entry.  Hence OK to inline things inside it.</entry>
958               <entry>static</entry>
959               <entry>-</entry>
960             </row>
961
962             <row>
963               <entry><option>-fno-cse</option></entry>
964               <entry>Turn off common sub-expression</entry>
965               <entry>dynamic</entry>
966               <entry>-</entry>
967             </row>
968
969             <row>
970               <entry><option>-fno-full-laziness</option></entry>
971               <entry>Turn off full laziness (floating bindings outwards).</entry>
972               <entry>dynamic</entry>
973               <entry>-ffull-laziness</entry>
974             </row>
975
976             <row>
977               <entry><option>-fno-pre-inlining</option></entry>
978               <entry>Turn off pre-inlining</entry>
979               <entry>static</entry>
980               <entry>-</entry>
981             </row>
982
983             <row>
984               <entry><option>-fno-strictness</option></entry>
985               <entry>Turn off strictness analysis</entry>
986               <entry>dynamic</entry>
987               <entry>-</entry>
988             </row>
989
990             <row>
991               <entry><option>-funbox-strict-fields</option></entry>
992               <entry>Flatten strict constructor fields</entry>
993               <entry>dynamic</entry>
994               <entry><option>-fno-unbox-strict-fields</option></entry>
995             </row>
996
997             <row>
998               <entry><option>-funfolding-creation-threshold</option></entry>
999               <entry>Tweak unfolding settings</entry>
1000               <entry>static</entry>
1001               <entry><option>-fno-unfolding-creation-threshold</option></entry>
1002             </row>
1003
1004             <row>
1005               <entry><option>-funfolding-fun-discount</option></entry>
1006               <entry>Tweak unfolding settings</entry>
1007               <entry>static</entry>
1008               <entry><option>-fno-unfolding-fun-discount</option></entry>
1009             </row>
1010
1011             <row>
1012               <entry><option>-funfolding-keeness-factor</option></entry>
1013               <entry>Tweak unfolding settings</entry>
1014               <entry>static</entry>
1015               <entry><option>-fno-unfolding-keeness-factor</option></entry>
1016             </row>
1017
1018             <row>
1019               <entry><option>-funfolding-update-in-place</option></entry>
1020               <entry>Tweak unfolding settings</entry>
1021               <entry>static</entry>
1022               <entry><option>-fno-unfolding-update-in-place</option></entry>
1023             </row>
1024
1025             <row>
1026               <entry><option>-funfolding-use-threshold</option></entry>
1027               <entry>Tweak unfolding settings</entry>
1028               <entry>static</entry>
1029               <entry><option>-fno-unfolding-use-threshold</option></entry>
1030             </row>
1031           </tbody>
1032         </tgroup>
1033       </informaltable>
1034     </sect2>
1035
1036     <sect2>
1037       <title>Profiling options</title>
1038       
1039       <para><xref linkend="profiling"/></para>
1040
1041       <informaltable>
1042         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1043           <thead>
1044             <row>
1045               <entry>Flag</entry>
1046               <entry>Description</entry>
1047               <entry>Static/Dynamic</entry>
1048               <entry>Reverse</entry>
1049             </row>
1050           </thead>
1051           <tbody>
1052             <row>
1053               <entry><option>-auto</option></entry>
1054               <entry>Auto-add <literal>_scc_</literal>s to all
1055               exported functions</entry>
1056               <entry>static</entry>
1057               <entry><option>-no-auto</option></entry>
1058             </row>
1059             <row>
1060               <entry><option>-auto-all</option></entry>
1061               <entry>Auto-add <literal>_scc_</literal>s to all
1062               top-level functions</entry>
1063               <entry>static</entry>
1064               <entry><option>-no-auto-all</option></entry>
1065             </row>
1066             <row>
1067               <entry><option>-caf-all</option></entry>
1068               <entry>Auto-add <literal>_scc_</literal>s to all CAFs</entry>
1069               <entry>static</entry>
1070               <entry><option>-no-caf-all</option></entry>
1071             </row>
1072             <row>
1073               <entry><option>-prof</option></entry>
1074               <entry>Turn on profiling</entry>
1075               <entry>static</entry>
1076               <entry>-</entry>
1077             </row>
1078             <row>
1079               <entry><option>-ticky</option></entry>
1080               <entry>Turn on ticky-ticky profiling</entry>
1081               <entry>static</entry>
1082               <entry>-</entry>
1083             </row>
1084           </tbody>
1085         </tgroup>
1086       </informaltable>
1087     </sect2>
1088
1089     <sect2>
1090       <title>Haskell pre-processor options</title>
1091
1092       <para><xref linkend="pre-processor"/></para>
1093
1094       <informaltable>
1095         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1096           <thead>
1097             <row>
1098               <entry>Flag</entry>
1099               <entry>Description</entry>
1100               <entry>Static/Dynamic</entry>
1101               <entry>Reverse</entry>
1102             </row>
1103           </thead>
1104           <tbody>
1105             <row>
1106               <entry><option>-F</option></entry>
1107               <entry>
1108                   Enable the use of a pre-processor
1109                   (set with <option>-pgmF</option>)
1110               </entry>
1111               <entry>dynamic</entry>
1112               <entry>-</entry>
1113             </row>
1114           </tbody>
1115         </tgroup>
1116       </informaltable>
1117     </sect2>
1118
1119     <sect2>
1120       <title>C pre-processor options</title>
1121
1122       <para><xref linkend="c-pre-processor"/></para>
1123
1124       <informaltable>
1125         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1126           <thead>
1127             <row>
1128               <entry>Flag</entry>
1129               <entry>Description</entry>
1130               <entry>Static/Dynamic</entry>
1131               <entry>Reverse</entry>
1132             </row>
1133           </thead>
1134           <tbody>
1135             <row>
1136               <entry><option>-cpp</option></entry>
1137               <entry>Run the C pre-processor on Haskell source files</entry>
1138               <entry>dynamic</entry>
1139               <entry>-</entry>
1140             </row>
1141             <row>
1142               <entry><option>-D</option><replaceable>symbol</replaceable><optional>=<replaceable>value</replaceable></optional></entry>
1143               <entry>Define a symbol in the C pre-processor</entry>
1144               <entry>dynamic</entry>
1145               <entry><option>-U</option><replaceable>symbol</replaceable></entry>
1146             </row>
1147             <row>
1148               <entry><option>-U</option><replaceable>symbol</replaceable></entry>
1149               <entry>Undefine a symbol in the C pre-processor</entry>
1150               <entry>dynamic</entry>
1151               <entry>-</entry>
1152             </row>
1153             <row>
1154               <entry><option>-I</option><replaceable>dir</replaceable></entry>
1155               <entry>Add <replaceable>dir</replaceable> to the
1156               directory search list for <literal>#include</literal> files</entry>
1157               <entry>dynamic</entry>
1158               <entry>-</entry>
1159             </row>
1160           </tbody>
1161         </tgroup>
1162       </informaltable>
1163     </sect2>
1164
1165     <sect2>
1166       <title>C compiler options</title>
1167
1168       <para><xref linkend="options-C-compiler"/></para>
1169       <informaltable>
1170         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1171           <thead>
1172             <row>
1173               <entry>Flag</entry>
1174               <entry>Description</entry>
1175               <entry>Static/Dynamic</entry>
1176               <entry>Reverse</entry>
1177             </row>
1178           </thead>
1179           <tbody>
1180             <row>
1181               <entry><option>-#include</option> <replaceable>file</replaceable></entry>
1182               <entry>Include <replaceable>file</replaceable> when
1183               compiling the <filename>.hc</filename> file</entry>
1184               <entry>dynamic</entry>
1185               <entry>-</entry>
1186             </row>
1187           </tbody>
1188         </tgroup>
1189       </informaltable>
1190     </sect2>
1191
1192     <sect2>
1193       <title>Code generation options</title>
1194
1195       <para><xref linkend="options-codegen"/></para>
1196
1197       <informaltable>
1198         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1199           <thead>
1200             <row>
1201               <entry>Flag</entry>
1202               <entry>Description</entry>
1203               <entry>Static/Dynamic</entry>
1204               <entry>Reverse</entry>
1205             </row>
1206           </thead>
1207           <tbody>
1208             <row>
1209               <entry><option>-fasm</option></entry>
1210               <entry>Use the native code generator</entry>
1211               <entry>dynamic</entry>
1212               <entry>-fvia-C</entry>
1213             </row>
1214             <row>
1215               <entry><option>-fvia-C</option></entry>
1216               <entry>Compile via C</entry>
1217               <entry>dynamic</entry>
1218               <entry>-fasm</entry>
1219             </row>
1220             <row>
1221               <entry><option>-fno-code</option></entry>
1222               <entry>Omit code generation</entry>
1223               <entry>mode</entry>
1224               <entry>-</entry>
1225             </row>
1226           </tbody>
1227         </tgroup>
1228       </informaltable>
1229     </sect2>
1230
1231     <sect2>
1232       <title>Linking options</title>
1233
1234       <para><xref linkend="options-linker"/></para>
1235
1236       <informaltable>
1237         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1238           <thead>
1239             <row>
1240               <entry>Flag</entry>
1241               <entry>Description</entry>
1242               <entry>Static/Dynamic</entry>
1243               <entry>Reverse</entry>
1244             </row>
1245           </thead>
1246           <tbody>
1247             <row>
1248               <entry><option>-dynamic</option></entry>
1249               <entry>Use dynamic Haskell libraries (if available)</entry>
1250               <entry>static</entry>
1251               <entry>-</entry>
1252             </row>
1253             <row>
1254               <entry><option>-framework</option> <replaceable>name</replaceable></entry>
1255               <entry>On Darwin/MacOS X only, link in the framework <replaceable>name</replaceable>.
1256                 This option corresponds to the <option>-framework</option> option for Apple's Linker.</entry>
1257               <entry>dynamic</entry>
1258               <entry>-</entry>
1259             </row>
1260             <row>
1261               <entry><option>-framework-path</option> <replaceable>name</replaceable></entry>
1262               <entry>On Darwin/MacOS X only, add <replaceable>dir</replaceable> to the list of
1263                 directories searched for frameworks.
1264                 This option corresponds to the <option>-F</option> option for Apple's Linker.</entry>
1265               <entry>dynamic</entry>
1266               <entry>-</entry>
1267             </row>
1268             <row>
1269               <entry><option>-l</option><replaceable>lib</replaceable></entry>
1270               <entry>Link in library <replaceable>lib</replaceable></entry>
1271               <entry>dynamic</entry>
1272               <entry>-</entry>
1273             </row>
1274             <row>
1275               <entry><option>-L</option><replaceable>dir</replaceable></entry>
1276               <entry>Add <replaceable>dir</replaceable> to the list of
1277               directories searched for libraries</entry>
1278               <entry>dynamic</entry>
1279               <entry>-</entry>
1280             </row>
1281             <row>
1282               <entry><option>-main-is</option></entry>
1283               <entry>Set main function</entry>
1284               <entry>dynamic</entry>
1285               <entry>-</entry>
1286             </row>
1287             <row>
1288               <entry><option>--mk-dll</option></entry>
1289               <entry>DLL-creation mode (Windows only)</entry>
1290               <entry>dynamic</entry>
1291               <entry>-</entry>
1292             </row>
1293             <row>
1294               <entry><option>-no-hs-main</option></entry>
1295               <entry>Don't assume this program contains <literal>main</literal></entry>
1296               <entry>dynamic</entry>
1297               <entry>-</entry>
1298             </row>
1299             <row>
1300               <entry><option>-no-link</option></entry>
1301               <entry>Omit linking</entry>
1302               <entry>dynamic</entry>
1303               <entry>-</entry>
1304             </row>
1305             <row>
1306               <entry><option>-split-objs</option></entry>
1307               <entry>Split objects (for libraries)</entry>
1308               <entry>dynamic</entry>
1309               <entry>-</entry>
1310             </row>
1311             <row>
1312               <entry><option>-static</option></entry>
1313               <entry>Use static Haskell libraries</entry>
1314               <entry>static</entry>
1315               <entry>-</entry>
1316             </row>
1317             <row>
1318               <entry><option>-threaded</option></entry>
1319               <entry>Use the threaded runtime</entry>
1320               <entry>static</entry>
1321               <entry>-</entry>
1322             </row>
1323             <row>
1324               <entry><option>-debug</option></entry>
1325               <entry>Use the debugging runtime</entry>
1326               <entry>static</entry>
1327               <entry>-</entry>
1328             </row>
1329           </tbody>
1330         </tgroup>
1331       </informaltable>
1332     </sect2>
1333
1334     <sect2>
1335       <title>Replacing phases</title>
1336
1337       <para><xref linkend="replacing-phases"/></para>
1338
1339       <informaltable>
1340         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1341           <thead>
1342             <row>
1343               <entry>Flag</entry>
1344               <entry>Description</entry>
1345               <entry>Static/Dynamic</entry>
1346               <entry>Reverse</entry>
1347             </row>
1348           </thead>
1349           <tbody>
1350             <row>
1351               <entry><option>-pgmL</option> <replaceable>cmd</replaceable></entry>
1352               <entry>Use <replaceable>cmd</replaceable> as the literate pre-processor</entry>
1353               <entry>dynamic</entry>
1354               <entry>-</entry>
1355             </row>
1356             <row>
1357               <entry><option>-pgmP</option> <replaceable>cmd</replaceable></entry>
1358               <entry>Use <replaceable>cmd</replaceable> as the C
1359               pre-processor (with <option>-cpp</option> only)</entry>
1360               <entry>dynamic</entry>
1361               <entry>-</entry>
1362             </row>
1363             <row>
1364               <entry><option>-pgmc</option> <replaceable>cmd</replaceable></entry>
1365               <entry>Use <replaceable>cmd</replaceable> as the C compiler</entry>
1366               <entry>dynamic</entry>
1367               <entry>-</entry>
1368             </row>
1369             <row>
1370               <entry><option>-pgma</option> <replaceable>cmd</replaceable></entry>
1371               <entry>Use <replaceable>cmd</replaceable> as the assembler</entry>
1372               <entry>dynamic</entry>
1373               <entry>-</entry>
1374             </row>
1375             <row>
1376               <entry><option>-pgml</option> <replaceable>cmd</replaceable></entry>
1377               <entry>Use <replaceable>cmd</replaceable> as the linker</entry>
1378               <entry>dynamic</entry>
1379               <entry>-</entry>
1380             </row>
1381             <row>
1382               <entry><option>-pgmdll</option> <replaceable>cmd</replaceable></entry>
1383               <entry>Use <replaceable>cmd</replaceable> as the DLL generator</entry>
1384               <entry>dynamic</entry>
1385               <entry>-</entry>
1386             </row>
1387             <row>
1388               <entry><option>-pgmdep</option> <replaceable>cmd</replaceable></entry>
1389               <entry>Use <replaceable>cmd</replaceable> as the dependency generator</entry>
1390               <entry>dyanmic</entry>
1391               <entry>-</entry>
1392             </row>
1393             <row>
1394               <entry><option>-pgmF</option> <replaceable>cmd</replaceable></entry>
1395               <entry>Use <replaceable>cmd</replaceable> as the pre-processor
1396               (with <option>-F</option> only)</entry>
1397               <entry>dynamic</entry>
1398               <entry>-</entry>
1399             </row>
1400           </tbody>
1401         </tgroup>
1402       </informaltable>
1403       <indexterm><primary><option>-pgmL</option></primary></indexterm>
1404       <indexterm><primary><option>-pgmP</option></primary></indexterm>
1405       <indexterm><primary><option>-pgmc</option></primary></indexterm>
1406       <indexterm><primary><option>-pgma</option></primary></indexterm>
1407       <indexterm><primary><option>-pgml</option></primary></indexterm>
1408       <indexterm><primary><option>-pgmdll</option></primary></indexterm>
1409       <indexterm><primary><option>-pgmdep</option></primary></indexterm>
1410       <indexterm><primary><option>-pgmF</option></primary></indexterm>
1411
1412     </sect2>
1413
1414     <sect2>
1415       <title>Forcing options to particular phases</title>
1416
1417       <para><xref linkend="forcing-options-through"/></para>
1418
1419       <informaltable>
1420         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1421           <thead>
1422             <row>
1423               <entry>Flag</entry>
1424               <entry>Description</entry>
1425               <entry>Static/Dynamic</entry>
1426               <entry>Reverse</entry>
1427             </row>
1428           </thead>
1429           <tbody>
1430             <row>
1431               <entry><option>-optL</option> <replaceable>option</replaceable></entry>
1432               <entry>pass <replaceable>option</replaceable> to the literate pre-processor</entry>
1433               <entry>dynamic</entry>
1434               <entry>-</entry>
1435             </row>
1436             <row>
1437               <entry><option>-optP</option> <replaceable>option</replaceable></entry>
1438               <entry>pass <replaceable>option</replaceable> to cpp (with
1439               <option>-cpp</option> only)</entry>
1440               <entry>dynamic</entry>
1441               <entry>-</entry>
1442             </row>
1443             <row>
1444               <entry><option>-optF</option> <replaceable>option</replaceable></entry>
1445               <entry>pass <replaceable>option</replaceable> to the
1446               custom pre-processor</entry>
1447               <entry>dynamic</entry>
1448               <entry>-</entry>
1449             </row>
1450             <row>
1451               <entry><option>-optc</option> <replaceable>option</replaceable></entry>
1452               <entry>pass <replaceable>option</replaceable> to the C compiler</entry>
1453               <entry>dynamic</entry>
1454               <entry>-</entry>
1455             </row>
1456             <row>
1457               <entry><option>-opta</option> <replaceable>option</replaceable></entry>
1458               <entry>pass <replaceable>option</replaceable> to the assembler</entry>
1459               <entry>dynamic</entry>
1460               <entry>-</entry>
1461             </row>
1462             <row>
1463               <entry><option>-optl</option> <replaceable>option</replaceable></entry>
1464               <entry>pass <replaceable>option</replaceable> to the linker</entry>
1465               <entry>dynamic</entry>
1466               <entry>-</entry>
1467             </row>
1468             <row>
1469               <entry><option>-optdll</option> <replaceable>option</replaceable></entry>
1470               <entry>pass <replaceable>option</replaceable> to the DLL generator</entry>
1471               <entry>dynamic</entry>
1472               <entry>-</entry>
1473             </row>
1474             <row>
1475               <entry><option>-optdep</option> <replaceable>option</replaceable></entry>
1476               <entry>pass <replaceable>option</replaceable> to the dependency generator</entry>
1477               <entry>dynamic</entry>
1478               <entry>-</entry>
1479             </row>
1480           </tbody>
1481         </tgroup>
1482       </informaltable>
1483     </sect2>
1484
1485     <sect2>
1486       <title>Platform-specific options</title>
1487       
1488       <para><xref linkend="options-platform"/></para>
1489
1490       <informaltable>
1491         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1492           <thead>
1493             <row>
1494               <entry>Flag</entry>
1495               <entry>Description</entry>
1496               <entry>Static/Dynamic</entry>
1497               <entry>Reverse</entry>
1498             </row>
1499           </thead>
1500           <tbody>
1501             <row>
1502               <entry><option>-monly-[432]-regs</option></entry>
1503               <entry>(x86 only) give some registers back to the C compiler</entry>
1504               <entry>dynamic</entry>
1505               <entry>-</entry>
1506             </row>
1507           </tbody>
1508         </tgroup>
1509       </informaltable>
1510     </sect2>
1511
1512          
1513     <sect2>
1514       <title>External core file options</title>
1515
1516       <para><xref linkend="ext-core"/></para>
1517
1518       <informaltable>
1519         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1520           <thead>
1521             <row>
1522               <entry>Flag</entry>
1523               <entry>Description</entry>
1524               <entry>Static/Dynamic</entry>
1525               <entry>Reverse</entry>
1526             </row>
1527           </thead>
1528           <tbody>
1529             <row>
1530               <entry><option>-fext-core</option></entry>
1531               <entry>Generate <filename>.hcr</filename> external Core files</entry>
1532               <entry>static</entry>
1533               <entry>-</entry>
1534             </row>
1535           </tbody>
1536         </tgroup>
1537       </informaltable>
1538     </sect2>
1539
1540
1541     <sect2>
1542       <title>Compiler debugging options</title>
1543
1544       <para><xref linkend="options-debugging"/></para>
1545
1546       <informaltable>
1547         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1548           <thead>
1549             <row>
1550               <entry>Flag</entry>
1551               <entry>Description</entry>
1552               <entry>Static/Dynamic</entry>
1553               <entry>Reverse</entry>
1554             </row>
1555           </thead>
1556           <tbody>
1557             <row>
1558               <entry><option>-dcore-lint</option></entry>
1559               <entry>Turn on internal sanity checking</entry>
1560               <entry>dynamic</entry>
1561               <entry>-</entry>
1562             </row>
1563             <row>
1564               <entry><option>-ddump-asm</option></entry>
1565               <entry>Dump assembly</entry>
1566               <entry>dynamic</entry>
1567               <entry>-</entry>
1568             </row>
1569             <row>
1570               <entry><option>-ddump-bcos</option></entry>
1571               <entry>Dump interpreter byte code</entry>
1572               <entry>dynamic</entry>
1573               <entry>-</entry>
1574             </row>
1575             <row>
1576               <entry><option>-ddump-cpranal</option></entry>
1577               <entry>Dump output from CPR analysis</entry>
1578               <entry>dynamic</entry>
1579               <entry>-</entry>
1580             </row>
1581             <row>
1582               <entry><option>-ddump-cse</option></entry>
1583               <entry>Dump CSE output</entry>
1584               <entry>dynamic</entry>
1585               <entry>-</entry>
1586             </row>
1587             <row>
1588               <entry><option>-ddump-deriv</option></entry>
1589               <entry>Dump deriving output</entry>
1590               <entry>dynamic</entry>
1591               <entry>-</entry>
1592             </row>
1593             <row>
1594               <entry><option>-ddump-ds</option></entry>
1595               <entry>Dump desugarer output</entry>
1596               <entry>dynamic</entry>
1597               <entry>-</entry>
1598             </row>
1599             <row>
1600               <entry><option>-ddump-flatC</option></entry>
1601               <entry>Dump &ldquo;flat&rdquo; C</entry>
1602               <entry>dynamic</entry>
1603               <entry>-</entry>
1604             </row>
1605             <row>
1606               <entry><option>-ddump-foreign</option></entry>
1607               <entry>Dump <literal>foreign export</literal> stubs</entry>
1608               <entry>dynamic</entry>
1609               <entry>-</entry>
1610             </row>
1611             <row>
1612               <entry><option>-ddump-inlinings</option></entry>
1613               <entry>Dump inlining info</entry>
1614               <entry>dynamic</entry>
1615               <entry>-</entry>
1616             </row>
1617             <row>
1618               <entry><option>-ddump-occur-anal</option></entry>
1619               <entry>Dump occurrence analysis output</entry>
1620               <entry>dynamic</entry>
1621               <entry>-</entry>
1622             </row>
1623             <row>
1624               <entry><option>-ddump-parsed</option></entry>
1625               <entry>Dump parse tree</entry>
1626               <entry>dynamic</entry>
1627               <entry>-</entry>
1628             </row>
1629             <row>
1630               <entry><option>-ddump-rn</option></entry>
1631               <entry>Dump renamer output</entry>
1632               <entry>dynamic</entry>
1633               <entry>-</entry>
1634             </row>
1635             <row>
1636               <entry><option>-ddump-rules</option></entry>
1637               <entry>Dump rules</entry>
1638               <entry>dynamic</entry>
1639               <entry>-</entry>
1640             </row>
1641             <row>
1642               <entry><option>-ddump-simpl</option></entry>
1643               <entry>Dump final simplifier output</entry>
1644               <entry>dynamic</entry>
1645               <entry>-</entry>
1646             </row>
1647             <row>
1648               <entry><option>-ddump-simpl-iterations</option></entry>
1649               <entry>Dump output from each simplifier iteration</entry>
1650               <entry>dynamic</entry>
1651               <entry>-</entry>
1652             </row>
1653             <row>
1654               <entry><option>-ddump-spec</option></entry>
1655               <entry>Dump specialiser output</entry>
1656               <entry>dynamic</entry>
1657               <entry>-</entry>
1658             </row>
1659             <row>
1660               <entry><option>-ddump-stg</option></entry>
1661               <entry>Dump final STG</entry>
1662               <entry>dynamic</entry>
1663               <entry>-</entry>
1664             </row>
1665             <row>
1666               <entry><option>-ddump-stranal</option></entry>
1667               <entry>Dump strictness analyser output</entry>
1668               <entry>dynamic</entry>
1669               <entry>-</entry>
1670             </row>
1671             <row>
1672               <entry><option>-ddump-tc</option></entry>
1673               <entry>Dump typechecker output</entry>
1674               <entry>dynamic</entry>
1675               <entry>-</entry>
1676             </row>
1677             <row>
1678               <entry><option>-ddump-types</option></entry>
1679               <entry>Dump type signatures</entry>
1680               <entry>dynamic</entry>
1681               <entry>-</entry>
1682             </row>
1683             <row>
1684               <entry><option>-ddump-worker-wrapper</option></entry>
1685               <entry>Dump worker-wrapper output</entry>
1686               <entry>dynamic</entry>
1687               <entry>-</entry>
1688             </row>
1689             <row>
1690               <entry><option>-ddump-rn-trace</option></entry>
1691               <entry>Trace renamer</entry>
1692               <entry>dynamic</entry>
1693               <entry>-</entry>
1694             </row>
1695             <row>
1696               <entry><option>-ddump-rn-stats</option></entry>
1697               <entry>Renamer stats</entry>
1698               <entry>dynamic</entry>
1699               <entry>-</entry>
1700             </row>
1701             <row>
1702               <entry><option>-ddump-simpl-stats</option></entry>
1703               <entry>Dump simplifier stats</entry>
1704               <entry>dynamic</entry>
1705               <entry>-</entry>
1706             </row>
1707             <row>
1708               <entry><option>-dppr-debug</option></entry>
1709               <entry>Turn on debug printing (more verbose)</entry>
1710               <entry>static</entry>
1711               <entry>-</entry>
1712             </row>
1713             <row>
1714               <entry><option>-dppr-noprags</option></entry>
1715               <entry>Don't output pragma info in dumps</entry>
1716               <entry>static</entry>
1717               <entry>-</entry>
1718             </row>
1719             <row>
1720               <entry><option>-dppr-user-length</option></entry>
1721               <entry>Set the depth for printing expressions in error msgs</entry>
1722               <entry>static</entry>
1723               <entry>-</entry>
1724             </row>
1725             <row>
1726               <entry><option>-dsource-stats</option></entry>
1727               <entry>Dump haskell source stats</entry>
1728               <entry>dynamic</entry>
1729               <entry>-</entry>
1730             </row>
1731             <row>
1732               <entry><option>-dstg-lint</option></entry>
1733               <entry>STG pass sanity checking</entry>
1734               <entry>dynamic</entry>
1735               <entry>-</entry>
1736             </row>
1737             <row>
1738               <entry><option>-dstg-stats</option></entry>
1739               <entry>Dump STG stats</entry>
1740               <entry>dynamic</entry>
1741               <entry>-</entry>
1742             </row>
1743             <row>
1744               <entry><option>-dverbose-core2core</option></entry>
1745               <entry>Show output from each core-to-core pass</entry>
1746               <entry>dynamic</entry>
1747               <entry>-</entry>
1748             </row>
1749             <row>
1750               <entry><option>-dverbose-stg2stg</option></entry>
1751               <entry>Show output from each STG-to-STG pass</entry>
1752               <entry>dynamic</entry>
1753               <entry>-</entry>
1754             </row>
1755             <row>
1756               <entry><option>-unreg</option></entry>
1757               <entry>Enable unregisterised compilation</entry>
1758               <entry>static</entry>
1759               <entry>-</entry>
1760             </row>
1761           </tbody>
1762         </tgroup>
1763       </informaltable>
1764     </sect2>
1765       
1766     <sect2>
1767       <title>Misc compiler options</title>
1768
1769       <informaltable>
1770         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1771           <thead>
1772             <row>
1773               <entry>Flag</entry>
1774               <entry>Description</entry>
1775               <entry>Static/Dynamic</entry>
1776               <entry>Reverse</entry>
1777             </row>
1778           </thead>
1779           <tbody>
1780             <row>
1781               <entry><option>-fno-hi-version-check</option></entry>
1782               <entry>Don't complain about <literal>.hi</literal> file mismatches</entry>
1783               <entry>static</entry>
1784               <entry>-</entry>
1785             </row>
1786             <row>
1787               <entry><option>-dno-black-holing</option></entry>
1788               <entry>Turn off black holing (probably doesn't work)</entry>
1789               <entry>static</entry>
1790               <entry>-</entry>
1791             </row>
1792             <row>
1793               <entry><option>-fno-method-sharing</option></entry>
1794               <entry>Don't share specialisations of overloaded functions</entry>
1795               <entry>static</entry>
1796               <entry>-</entry>
1797             </row>
1798             <row>
1799               <entry><option>-fhistory-size</option></entry>
1800               <entry>Set simplification history size</entry>
1801               <entry>static</entry>
1802               <entry>-</entry>
1803             </row>
1804             <row>
1805               <entry><option>-funregisterised</option></entry>
1806               <entry>Unregisterised compilation (use <option>-unreg</option> instead)</entry>
1807               <entry>static</entry>
1808               <entry>-</entry>
1809             </row>
1810             <row>
1811               <entry><option>-fno-asm-mangling</option></entry>
1812               <entry>Turn off assembly mangling (use <option>-unreg</option> instead)</entry>
1813               <entry>dynamic</entry>
1814               <entry>-</entry>
1815             </row>
1816             <row>
1817               <entry><option>-fno-print-bind-result</option></entry>
1818               <entry><link id="ghci-stmts">Turn off printing of binding results in GHCi</link></entry>
1819               <entry>dynamic</entry>
1820               <entry>-</entry>
1821             </row>
1822           </tbody>
1823         </tgroup>
1824       </informaltable>
1825     </sect2>
1826   </sect1>
1827
1828
1829 <!--
1830 Still to document:
1831
1832 Misc:
1833   ,  ( "H"                 , HasArg (setHeapSize . fromIntegral . decodeSize) )
1834
1835   -Bdir
1836 -->
1837
1838 <!-- Emacs stuff:
1839      ;;; Local Variables: ***
1840      ;;; mode: xml ***
1841      ;;; sgml-parent-document: ("users_guide.xml" "book" "chapter") ***
1842      ;;; End: ***
1843  -->