1 dnl $Id: aclocal.m4,v 1.90 2001/12/13 09:23:23 sof Exp $
3 dnl Extra autoconf macros for the Glasgow fptools
5 dnl To be a good autoconf citizen, names of local macros have
6 dnl prefixed with FPTOOLS_ to ensure we don't clash
7 dnl with any pre-supplied autoconf ones.
10 dnl Is timezone around? (in a header file)
12 AC_DEFUN(FPTOOLS_HAVE_TIMEZONE,
13 [AC_CACHE_CHECK([timezone], fptools_cv_have_timezone,
14 [AC_TRY_COMPILE([#if TIME_WITH_SYS_TIME
15 # include <sys/time.h>
19 # include <sys/time.h>
24 ], [return timezone;],
25 fptools_cv_have_timezone=yes, fptools_cv_have_timezone=no)])
26 if test "$fptools_cv_have_timezone" = yes; then
27 AC_DEFINE(HAVE_TIMEZONE)
32 dnl Has timezone the type time_t or long (HP-UX 10.20 apparently
35 AC_DEFUN(FPTOOLS_TYPE_TIMEZONE,
36 [AC_CACHE_CHECK([type of timezone], fptools_cv_type_timezone,
37 [AC_TRY_COMPILE([#if TIME_WITH_SYS_TIME
38 # include <sys/time.h>
42 # include <sys/time.h>
48 extern time_t timezone;
50 [int i;], fptools_cv_type_timezone=time_t, fptools_cv_type_timezone=long)])
51 AC_DEFINE_UNQUOTED(TYPE_TIMEZONE, $fptools_cv_type_timezone)
54 dnl *** Is altzone available? ***
56 AC_DEFUN(FPTOOLS_ALTZONE,
57 [AC_CACHE_CHECK([altzone], fptools_cv_altzone,
58 [AC_TRY_LINK([#if TIME_WITH_SYS_TIME
59 # include <sys/time.h>
63 # include <sys/time.h>
69 fptools_cv_altzone=yes, fptools_cv_altzone=no)])
70 if test "$fptools_cv_altzone" = yes; then
71 AC_DEFINE(HAVE_ALTZONE)
76 dnl *** Does libc contain GNU regex? ***
78 AC_DEFUN(FPTOOLS_REGEX_IN_LIBC,
79 [AC_CACHE_CHECK([for GNU regex in libc], fptools_cv_have_regex,
80 [AC_TRY_LINK([#if HAVE_UNISTD_H
84 ],[ struct re_pattern_buffer patbuf;
85 re_compile_pattern("",0,&patbuf);
86 re_search_2 (&patbuf, "", 0, "",0, 0,0,0,0); ],
87 fptools_cv_have_regex=yes, fptools_cv_have_regex=no)])
88 if test "$fptools_cv_have_regex" = yes; then
97 dnl ** check for leading underscores in symbol names
99 dnl Test for determining whether symbol names have a leading
102 dnl We assume that they _haven't_ if anything goes wrong.
104 dnl Some nlist implementations seem to try to be compatible by ignoring
105 dnl a leading underscore sometimes (eg. FreeBSD). We therefore have
106 dnl to work around this by checking for *no* leading underscore first.
109 AC_DEFUN(FPTOOLS_UNDERSCORE,
110 [AC_CHECK_LIB(elf, nlist, LIBS="-lelf $LIBS")dnl
111 AC_CACHE_CHECK([leading underscore in symbol names], fptools_cv_lead_uscore,
114 dnl Hack!: nlist() under Digital UNIX insist on there being an _,
115 dnl but symbol table listings shows none. What is going on here?!?
117 dnl Another hack: cygwin doesn't come with nlist.h , so we hardwire
118 dnl the underscoredness of that "platform"
119 changequote(<<, >>)dnl
121 case $HostPlatform in
122 alpha-dec-osf*) fptools_cv_lead_uscore='no';;
123 *cygwin32) fptools_cv_lead_uscore='yes';;
124 *mingw32) fptools_cv_lead_uscore='yes';;
127 AC_TRY_RUN([#ifdef HAVE_NLIST_H
129 changequote(<<, >>)dnl
131 struct nlist xYzzY1[] = {{"xYzzY1", 0},{0}};
132 struct nlist xYzzY2[] = {{"_xYzzY2", 0},{0}};
140 if(nlist(argv[0], xYzzY1) == 0 && xYzzY1[0].n_value != 0)
142 if(nlist(argv[0], xYzzY2) == 0 && xYzzY2[0].n_value != 0)
147 }], fptools_cv_lead_uscore=yes, fptools_cv_lead_uscore=no, fptools_cv_lead_uscore=NO)
150 LeadingUnderscore=`echo $fptools_cv_lead_uscore | sed 'y/yesno/YESNO/'`
151 AC_SUBST(LeadingUnderscore)
152 case $LeadingUnderscore in
153 YES) AC_DEFINE(LEADING_UNDERSCORE);;
158 dnl FPTOOLS_PROG_CHECK_VERSION(VERSIONSTR1, TEST, VERSIONSTR2,
159 dnl ACTION-IF-TRUE [, ACTION-IF-FALSE])
161 dnl compare versions field-wise (separator is '.')
162 dnl TEST is one of {-lt,-le,-eq,-ge,-gt}
164 dnl quite shell-independant and SUSv2 compliant code
166 dnl NOTE: the loop could be unrolled within autoconf, but the
167 dnl macro code would be a) longer and b) harder to debug... ;)
169 AC_DEFUN(FPTOOLS_PROG_CHECK_VERSION,
174 set -- [$]a; h1="[$]1"; shift 2>/dev/null; a="[$]*"
175 set -- [$]b; h2="[$]1"; shift 2>/dev/null; b="[$]*"
176 test -n "[$]h1" || h1=0; test -n "[$]h2" || h2=0
177 test [$]{h1} -eq [$]{h2} || break
179 test [$]{h1} [$2] [$]{h2}
181 then ifelse([$4],,[:],[
191 dnl Check for Happy and version. If we're building GHC, then we need
192 dnl at least Happy version 1.9. If there's no installed Happy, we look
193 dnl for a happy source tree and point the build system at that instead.
195 AC_DEFUN(FPTOOLS_HAPPY,
197 if test -d $srcdir/happy; then
198 SrcTreeHappyCmd=$hardtop/happy/src/happy-inplace
200 if test x"$UseSrcTreeHappy" = xYES; then
201 HappyCmd=$SrcTreeHappyCmd
203 AC_PATH_PROG(HappyCmd,happy,$SrcTreeHappyCmd)
205 AC_CACHE_CHECK([for version of happy], fptools_cv_happy_version,
207 [if test x"$HappyCmd" = x"$SrcTreeHappyCmd"; then
208 fptools_cv_happy_version=`grep '^ProjectVersion[ ]*=' $srcdir/happy/mk/version.mk | sed 's/.*\([0-9][0-9]*\.[0-9][0-9]*\).*/\1/g'`;
209 elif test x"$HappyCmd" != x; then
210 fptools_cv_happy_version="`$HappyCmd -v |
211 grep 'Happy Version' | sed -e 's/Happy Version \([^ ]*\).*/\1/g'`" ;
213 fptools_cv_happy_version="";
217 if test -d $srcdir/ghc; then
218 FPTOOLS_PROG_CHECK_VERSION([$fptools_cv_happy_version],-lt,[1.9],
219 [AC_MSG_ERROR([Happy version 1.9 or later is required to compile GHC.])])dnl
221 HappyVersion=$fptools_cv_happy_version;
222 AC_SUBST(HappyVersion)
224 # 1.9 and later is required, assume that we can use
225 # the "-agc" options.
228 FPTOOLS_PROG_CHECK_VERSION([$fptools_cv_happy_version],-gt,[1.11],
235 dnl What's the best way of doing context diffs?
237 dnl (NB: NeXTStep thinks diff'ing a file against itself is "trouble")
239 AC_DEFUN(FPTOOLS_PROG_DIFF,
240 [AC_CACHE_CHECK([for ok way to do context diffs], fptools_cv_context_diffs,
241 [echo foo > conftest1
243 if diff -C 1 conftest1 conftest2 > /dev/null 2>&1 ; then
244 fptools_cv_context_diffs='diff -C 1'
246 if diff -c1 conftest1 conftest2 > /dev/null 2>&1 ; then
247 fptools_cv_context_diffs='diff -c1'
249 echo "Can't figure out how to do context diffs."
250 echo "Neither \`diff -C 1' nor \`diff -c1' works."
254 rm -f conftest1 conftest2
256 ContextDiffCmd=$fptools_cv_context_diffs
257 AC_SUBST(ContextDiffCmd)
261 dnl Check whether ld supports -x
263 AC_DEFUN(FPTOOLS_LD_X,
264 [AC_CACHE_CHECK([whether ld understands -x], fptools_cv_ld_x,
266 echo 'foo() {}' > conftest.c
267 ${CC-cc} -c conftest.c
268 if ${LdCmd} -r -x -o foo.o conftest.o; then
273 rm -rf conftest.c conftest.o foo.o
275 if test "$fptools_cv_ld_x" = yes; then
284 dnl Finding the Right Yacc
286 AC_DEFUN(FPTOOLS_PROG_YACCY,
288 if test "$YACC" = "yacc"; then
289 AC_CACHE_CHECK([if it is an OK yacc], ac_cv_prog_yacc,
290 [AC_CHECK_PROG(WhatCmd, what, what, :)
291 $WhatCmd $YACC > conftest.out
292 if egrep 'y1\.c 1\..*SMI' conftest.out >/dev/null 2>&1; then
293 echo "I don't trust your $YaccCmd; it looks like an old Sun yacc"
294 if test -f /usr/lang/yacc; then
295 echo "I'm going to use /usr/lang/yacc instead"
296 ac_cv_prog_yacc=/usr/lang/yacc
298 echo "I'm assuming the worst...no parser generator at all"
301 elif egrep 'y1\.c.*Revision: 4\.2\.6\.3.*DEC' conftest.out >/dev/null 2>&1; then
302 echo "I don't trust your $YaccCmd; it looks like a lame DEC yacc"
303 echo "I'm assuming the worst...no parser generator at all"
306 ac_cv_prog_yacc=$YACC
311 ac_cv_prog_yacc=$YACC
313 YaccCmd=$ac_cv_prog_yacc
317 dnl *** Checking for ar and its arguments + whether we need ranlib.
319 dnl ArCmd, ArSupportsInput and RANLIB are AC_SUBST'ed
320 dnl On Digital UNIX, we test for the -Z (compress) and
321 dnl -input (take list of files from external file) flags.
323 AC_DEFUN(FPTOOLS_PROG_AR_AND_RANLIB,
324 [AC_PATH_PROG(ArCmd,ar)
325 if test -z "$ArCmd"; then
326 echo "You don't seem to have ar in your PATH...I have no idea how to make a library"
329 if $ArCmd clqsZ conftest.a >/dev/null 2>/dev/null; then
332 elif $ArCmd clqs conftest.a >/dev/null 2>/dev/null; then
335 elif $ArCmd cqs conftest.a >/dev/null 2>/dev/null; then
338 elif $ArCmd clq conftest.a >/dev/null 2>/dev/null; then
341 elif $ArCmd cq conftest.a >/dev/null 2>/dev/null; then
344 elif $ArCmd cq conftest.a 2>&1 | grep 'no archive members specified' >/dev/null 2>/dev/null; then
348 echo "I can't figure out how to use your $ArCmd"
352 test -n "$ArCmd" && test -n "$verbose" && echo " setting ArCmd to $ArCmd"
354 if $ArCmd conftest.a -input /dev/null >/dev/null 2>/dev/null; then
355 ArSupportsInput='-input'
360 test -n "$ArSupportsInput" && test -n "$verbose" && echo " setting ArSupportsInput to $ArSupportsInput"
361 AC_SUBST(ArSupportsInput)
362 if test -z "$NeedRanLib"; then
364 test -n "$verbose" && echo " setting RANLIB to $RANLIB"
372 dnl AC_SHEBANG_PERL - can we she-bang perl?
374 AC_DEFUN(FPTOOLS_SHEBANG_PERL,
375 [AC_CACHE_CHECK([if your perl works in shell scripts], fptools_cv_shebang_perl,
380 (SHELL=/bin/sh; export SHELL; ./conftest 69 > /dev/null)
381 if test $? -ne 69; then
382 fptools_cv_shebang_perl=yes
384 fptools_cv_shebang_perl=no
390 dnl Extra testing of the result AC_PROG_CC, testing the gcc version no.
391 dnl *Must* be called after AC_PROG_CC
393 AC_DEFUN(FPTOOLS_HAVE_GCC,
394 [AC_CACHE_CHECK([whether you have an ok gcc], fptools_cv_have_gcc,
395 [if test -z "$GCC"; then
397 echo "You would be better off with gcc"
398 echo "Perhaps it is already installed, but not in your PATH?"
399 fptools_cv_have_gcc='no'
402 is_gcc_v1="`$CC -v 2>&1 | grep 'version ' | sed -e 's/.*version [^0-9]*\([0-9][0-9]*\)\.\([0-9][0-9]*\).*/expr 2000 \\\>= \1 \\\* 1000 + \2/g' `"
403 is_gcc_v3="`$CC -v 2>&1 | grep 'version ' | sed -e 's/.*version [^0-9]*\([0-9][0-9]*\)\.\([0-9][0-9]*\).*/expr 3000 \\\<= \1 \\\* 1000 + \2/g' `"
405 fptools_cv_have_gcc='yes'
406 if test `eval $is_gcc_v1 2>/dev/null` = "1"; then
407 fptools_cv_have_gcc='no'
409 echo "your gcc version appears to be ..."
411 echo "gcc prior to 2.0 and have never worked with ghc."
412 echo "we recommend 2.95.3, although versions back to 2.7.2 should be ok."
413 AC_MSG_ERROR([gcc 1.X has never been supported])
415 if test `eval $is_gcc_v3 2>/dev/null` = "1"; then
416 fptools_cv_have_gcc='no'
418 echo "your gcc version appears to be ..."
420 echo "gcc versions 3.0 and above are not yet supported."
421 echo "we recommend 2.95.3, although versions back to 2.7.2 should be ok."
422 AC_MSG_ERROR([gcc 3.0 and above is not currently supported])
426 HaveGcc=`echo $fptools_cv_have_gcc | sed 'y/yesno/YESNO/'`
430 dnl Small feature test for perl version. Assumes PerlCmd
431 dnl contains path to perl binary
433 AC_DEFUN(FPTOOLS_CHECK_PERL_VERSION,
434 [$PerlCmd -v >conftest.out 2>&1
435 if grep "version 5" conftest.out >/dev/null 2>&1; then
438 if grep "v5.6" conftest.out >/dev/null 2>&1; then
441 if grep "version 6" conftest.out >/dev/null 2>&1; then
444 echo "Your version of perl probably won't work."
452 dnl Getting at the right version of 'find'
453 dnl (i.e., not the MS util on a Win32 box).
455 AC_DEFUN(FPTOOLS_FIND_FIND,
457 AC_PATH_PROG(Find2Cmd, find)
458 $Find2Cmd --version > conftest.out 2>&1
459 if grep "FIND: Parameter format" conftest.out >/dev/null 2>&1 ; then
460 # Encountered MS' find utility, which is not what we're after.
462 # HACK - AC_CHECK_PROG is useful here in that does let you reject
463 # an (absolute) entry in the path (Find2Cmd). It is not so useful
464 # in that it doesn't let you (AFAIU) set VARIABLE equal to the
465 # absolute path eventually found. So, hack around this by inspecting
466 # what variables hold the abs. path & use them directly.
467 AC_CHECK_PROG(FindCmd,find,`echo $ac_dir/$ac_word`,find,,$Find2Cmd)
475 dnl FPTOOLS_NOCACHE_CHECK prints a message, then sets the
476 dnl values of the second argument to the result of running
477 dnl the commands given by the third. It does not cache its
478 dnl result, so it is suitable for checks which should be
481 AC_DEFUN(FPTOOLS_NOCACHE_CHECK,
482 [AC_MSG_CHECKING([$1])
484 AC_MSG_RESULT([$][$2])
488 dnl FPTOOLS_GHC_VERSION(version)
489 dnl FPTOOLS_GHC_VERSION(major, minor [, patchlevel])
490 dnl FPTOOLS_GHC_VERSION(version, major, minor, patchlevel)
492 dnl Test for version of installed ghc. Uses $GHC.
493 dnl [original version pinched from c2hs]
495 AC_DEFUN(FPTOOLS_GHC_VERSION,
496 [FPTOOLS_NOCACHE_CHECK([version of ghc], [fptools_version_of_ghc],
497 [${WithGhc-ghc} --version > conftestghc 2>&1
498 cat conftestghc >&AC_FD_CC
499 #Useless Use Of cat award...
500 fptools_version_of_ghc=`cat conftestghc | sed -n -e 's/, patchlevel *\([[0-9]]\)/.\1/;s/.* version \([[0-9]][[0-9.]]*\).*/\1/p'`
502 if test "[$]fptools_version_of_ghc" = ""
504 fptools_version_of_ghc='unknown'
506 fptools_version_of_ghc[_major]=`echo [$]fptools_version_of_ghc | sed -e 's/^\([[0-9]]\).*/\1/'`
507 fptools_version_of_ghc[_minor]=`echo [$]fptools_version_of_ghc | sed -e 's/^[[0-9]]\.\([[0-9]]*\).*/\1/'`
508 fptools_version_of_ghc[_pl]=`echo [$]fptools_version_of_ghc | sed -n -e 's/^[[0-9]]\.[[0-9]]*\.\([[0-9]]*\)/\1/p'`
510 if test "[$]fptools_version_of_ghc[_pl]" = ""
512 fptools_version_of_ghc[_all]="[$]fptools_version_of_ghc[_major].[$]fptools_version_of_ghc[_minor]"
513 fptools_version_of_ghc[_pl]="0"
515 fptools_version_of_ghc[_all]="[$]fptools_version_of_ghc[_major].[$]fptools_version_of_ghc[_minor].[$]fptools_version_of_ghc[_pl]"
519 [$1]="[$]fptools_version_of_ghc[_all]"
521 [$1]="[$]fptools_version_of_ghc[_major]"
522 [$2]="[$]fptools_version_of_ghc[_minor]"
524 [$1]="[$]fptools_version_of_ghc[_major]"
525 [$2]="[$]fptools_version_of_ghc[_minor]"
526 [$3]="[$]fptools_version_of_ghc[_pl]"
528 [$1]="[$]fptools_version_of_ghc[_all]"
529 [$2]="[$]fptools_version_of_ghc[_major]"
530 [$3]="[$]fptools_version_of_ghc[_minor]"
531 [$4]="[$]fptools_version_of_ghc[_pl]"
537 dnl ** figure out the alignment restriction of a type
538 dnl (required SIZEOF test but AC_CHECK_SIZEOF doesn't call PROVIDE
539 dnl so we can't call REQUIRE)
541 dnl FPTOOLS_CHECK_ALIGNMENT(TYPE)
542 AC_DEFUN(FPTOOLS_CHECK_ALIGNMENT,
543 [changequote(<<, >>)dnl
544 dnl The name to #define.
545 define(<<AC_TYPE_NAME>>, translit(alignment_$1, [a-z *], [A-Z_P]))dnl
546 dnl The cache variable name.
547 define(<<AC_CV_NAME>>, translit(ac_cv_alignment_$1, [ *], [_p]))dnl
548 dnl The name of the corresponding size.
549 define(<<AC_CV_SIZEOF_NAME>>, translit(ac_cv_sizeof_$1, [ *], [_p]))dnl
551 AC_MSG_CHECKING(alignment of $1)
552 AC_CACHE_VAL(AC_CV_NAME,
559 #define offsetof(ty,field) ((size_t)((char *)&((ty *)0)->field - (char *)(ty *)0))
564 FILE *f=fopen("conftestval", "w");
566 fprintf(f, "%d", offsetof(struct { char c; $1 ty;},ty));
569 AC_CV_NAME=`cat conftestval`,
570 AC_CV_NAME=$AC_CV_SIZEOF_NAME,
571 AC_CV_NAME=$AC_CV_SIZEOF_NAME)])
572 AC_MSG_RESULT($AC_CV_NAME)
573 AC_DEFINE_UNQUOTED(AC_TYPE_NAME, $AC_CV_NAME)
574 AC_PROVIDE($AC_TYPE_NAME)
575 undefine([AC_TYPE_NAME])dnl
576 undefine([AC_CV_NAME])dnl
577 undefine([AC_CV_SIZEOF_NAME])dnl
580 dnl ** Map an arithmetic C type to a Haskell type.
581 dnl Based on autconf's AC_CHECK_SIZEOF.
583 dnl FPTOOLS_CHECK_HTYPE(TYPE [, DEFAULT_VALUE, [, VALUE-FOR-CROSS-COMPILATION])
584 AC_DEFUN(FPTOOLS_CHECK_HTYPE,
585 [changequote(<<, >>)dnl
586 dnl The name to #define.
587 define(<<AC_TYPE_NAME>>, translit(htype_$1, [a-z *], [A-Z_P]))dnl
588 dnl The cache variable name.
589 define(<<AC_CV_NAME>>, translit(fptools_cv_htype_$1, [ *], [_p]))dnl
591 AC_MSG_CHECKING(Haskell type for $1)
592 AC_CACHE_VAL(AC_CV_NAME,
593 [AC_TRY_RUN([#include <stdio.h>
608 FILE *f=fopen("conftestval", "w");
610 if (((testing)((int)((testing)1.4))) == ((testing)1.4)) {
612 ((testing)(-1) < (testing)0) ? "Int" : "Word",
616 (sizeof(testing) > sizeof(double)) ? "LDouble" :
617 (sizeof(testing) == sizeof(double)) ? "Double" : "Float");
621 }], AC_CV_NAME=`cat conftestval`,
622 ifelse([$2], , AC_CV_NAME=NotReallyAType, AC_CV_NAME=$2),
623 ifelse([$3], , AC_CV_NAME=NotReallyATypeCross, AC_CV_NAME=$3))]) dnl
624 AC_MSG_RESULT($AC_CV_NAME)
625 AC_DEFINE_UNQUOTED(AC_TYPE_NAME, $AC_CV_NAME)
626 undefine([AC_TYPE_NAME])dnl
627 undefine([AC_CV_NAME])dnl
630 dnl ** figure out whether C compiler supports 'long long's
631 dnl (Closely based on Andreas Zeller's macro for testing
632 dnl for this under C++)
634 dnl If the C compiler supports `long long' types,
635 dnl define `HAVE_LONG_LONG'.
637 AC_DEFUN(FPTOOLS_C_LONG_LONG,
639 AC_REQUIRE([AC_PROG_CC])
640 AC_MSG_CHECKING(whether ${CC} supports long long types)
641 AC_CACHE_VAL(fptools_cv_have_long_long,
645 AC_TRY_COMPILE(,[long long a;],
646 fptools_cv_have_long_long=yes,
647 fptools_cv_have_long_long=no)
650 AC_MSG_RESULT($fptools_cv_have_long_long)
651 if test "$fptools_cv_have_long_long" = yes; then
652 AC_DEFINE(HAVE_LONG_LONG)
656 dnl ** Obtain the value of a C constant.
657 dnl The value will be `(-1)' if the constant is undefined.
659 dnl This is set up so that the argument can be a shell variable.
661 AC_DEFUN(FPTOOLS_CHECK_CCONST,
663 eval "def_name=CCONST_$1"
664 eval "cv_name=ac_cv_cconst_$1"
665 AC_MSG_CHECKING(value of $1)
666 AC_CACHE_VAL($cv_name,
667 [AC_TRY_RUN([#include <stdio.h>
671 FILE *f=fopen("conftestval", "w");
673 fprintf(f, "%d\n", $1);
676 eval "$cv_name=`cat conftestval`",
678 eval "$cv_name=-1")])dnl
679 eval "fptools_check_cconst_result=`echo '$'{$cv_name}`"
680 AC_MSG_RESULT($fptools_check_cconst_result)
681 AC_DEFINE_UNQUOTED($def_name, $fptools_check_cconst_result)
682 unset fptools_check_cconst_result
685 dnl ** Invoke AC_CHECK_CCONST on each argument (which have to separate with
688 AC_DEFUN(FPTOOLS_CHECK_CCONSTS,
689 [for ac_const_name in $1
691 FPTOOLS_CHECK_CCONST($ac_const_name)dnl
696 dnl *** Can we open files in binary mode? ***
698 AC_DEFUN(FPTOOLS_O_BINARY,
700 AC_REQUIRE([AC_PROG_CC])
701 AC_MSG_CHECKING(whether we can open files in binary mode)
702 AC_CACHE_VAL(fptools_cv_have_o_binary,
711 fptools_cv_have_o_binary=yes,
712 fptools_cv_have_o_binary=no)
715 AC_MSG_RESULT($fptools_cv_have_o_binary)
716 if test "$fptools_cv_have_o_binary" = yes; then
717 AC_DEFINE(HAVE_O_BINARY)
721 dnl *** Which one comes first, .text or .data? ***
723 AC_DEFUN(FPTOOLS_CODE_BEFORE_DATA,
724 [AC_CACHE_CHECK([if code section appears before data], fptools_cv_code_bef_data,
726 int f() { return 1; }
728 int main() { return ((char*)&f > (char*)&i); }
731 fptools_cv_code_bef_data=yes, fptools_cv_code_bef_data=no,false)])
732 if test "$fptools_cv_code_bef_data" = yes; then
733 AC_DEFINE(CODE_BEFORE_DATA)
737 dnl *** Helper function **
739 AC_DEFUN(FPTOOLS_IN_SCOPE,
740 [AC_TRY_LINK([extern char* $1;],[return (int)&$2], $3=yes, $3=no)
743 dnl *** What's the end-of-text-section marker called? ***
745 AC_DEFUN([FPTOOLS_END_TEXT_SECTION],
746 [AC_CACHE_CHECK([for end of text section marker],
747 [fptools_cv_end_of_text],
748 [fptools_cv_end_of_text=""
750 for i in data_start _data_start etext _etext __etext; do
751 FPTOOLS_IN_SCOPE($i,$i,fptools_end_of_text)
752 if test "$fptools_end_of_text" = yes; then
753 fptools_cv_end_of_text=$i
758 if test "$not_done" = 1; then
759 FPTOOLS_IN_SCOPE(etext asm("etext"),etext,fptools_end_of_text)
760 if test "$fptools_end_of_text" = yes; then
761 fptools_cv_end_of_text="etext"
764 if test -n "$fptools_cv_end_of_text"; then
765 AC_DEFINE_UNQUOTED([TEXT_SECTION_END_MARKER], $fptools_cv_end_of_text)
767 AC_DEFINE_UNQUOTED([TEXT_SECTION_END_MARKER], dunno_end_of_text)
769 AC_CACHE_CHECK([for end of text section marker declaration],
770 [fptools_cv_end_of_text_decl],
771 [fptools_cv_end_of_text_decl=""
773 for i in data_start _data_start etext _etext __etext; do
774 FPTOOLS_IN_SCOPE($i,$i,fptools_end_of_text_decl)
775 if test "$fptools_end_of_text_decl" = yes; then
776 fptools_cv_end_of_text_decl=$i
781 if test "$not_done" = 1; then
782 FPTOOLS_IN_SCOPE(etext asm("etext"),etext,fptools_end_of_text_decl)
783 if test "$fptools_end_of_text_decl" = yes; then
784 fptools_cv_end_of_text_decl="etext asm(\"etext\")"
787 if test -n "$fptools_cv_end_of_text_decl"; then
788 AC_DEFINE_UNQUOTED([TEXT_SECTION_END_MARKER_DECL], $fptools_cv_end_of_text_decl)
790 AC_DEFINE_UNQUOTED([TEXT_SECTION_END_MARKER_DECL], dunno_end_of_text_decl)
794 dnl *** What's the end-of-data-section marker called? ***
796 AC_DEFUN([FPTOOLS_END_DATA_SECTION],
797 [AC_CACHE_CHECK([for end of data section marker],
798 [fptools_cv_end_of_data],
799 [fptools_cv_end_of_data=""
801 for i in end _end __end; do
802 FPTOOLS_IN_SCOPE($i,$i,fptools_end_of_data)
803 if test "$fptools_end_of_data" = yes; then
804 fptools_cv_end_of_data=$i
809 if test "$not_done" = 1; then
810 FPTOOLS_IN_SCOPE(end asm("end"),end,fptools_end_of_data)
811 if test "$fptools_end_of_data" = yes; then
812 fptools_cv_end_of_data="end"
815 if test -n "$fptools_cv_end_of_data"; then
816 AC_DEFINE_UNQUOTED([DATA_SECTION_END_MARKER], $fptools_cv_end_of_data)
818 AC_DEFINE_UNQUOTED([DATA_SECTION_END_MARKER], dunno_end_of_data)
820 AC_CACHE_CHECK([for end of data section marker declaration],
821 [fptools_cv_end_of_data_decl],
822 [fptools_cv_end_of_data_decl=""
824 for i in end _end __end; do
825 FPTOOLS_IN_SCOPE($i,$i,fptools_end_of_data_decl)
826 if test "$fptools_end_of_data_decl" = yes; then
827 fptools_cv_end_of_data_decl=$i
832 if test "$not_done" = 1; then
833 FPTOOLS_IN_SCOPE(end asm("end"),end,fptools_end_of_data_decl)
834 if test "$fptools_end_of_data_decl" = yes; then
835 fptools_cv_end_of_data_decl="end asm(\"end\")"
838 if test -n "$fptools_cv_end_of_data_decl"; then
839 AC_DEFINE_UNQUOTED([DATA_SECTION_END_MARKER_DECL], $fptools_cv_end_of_data_decl)
841 AC_DEFINE_UNQUOTED([DATA_SECTION_END_MARKER_DECL], dunno_end_of_data_decl)
846 dnl Based on AC_TRY_LINK - run iftrue if links cleanly with no warning
848 dnl FPTOOLS_TRY_LINK_NOWARN(flags,main?,iftrue,iffalse)
850 AC_DEFUN(FPTOOLS_TRY_LINK_NOWARN,
854 cat > conftest.$ac_ext <<EOF
855 dnl This sometimes fails to find confdefs.h, for some reason.
856 dnl [#]line __oline__ "[$]0"
857 [#]line __oline__ "configure"
858 #include "confdefs.h"
860 int t() { return 0; }
862 if AC_TRY_EVAL(ac_link); then
867 ifelse([$4], , , [else
877 dnl Loosely based on AC_CHECK_LIB in acgeneral.m4 in autoconf distribution
879 dnl FPTOOLS_CHECK_FLAG_NOWARN(NAME, FLAG, CODE, iftrue, iffalse)
881 AC_DEFUN(FPTOOLS_CHECK_FLAG_NOWARN,
882 [AC_MSG_CHECKING([for $1])
883 AC_CACHE_VAL(ac_cv_flag_$1,
884 [FPTOOLS_TRY_LINK_NOWARN("$2", [main() { $3; exit(0); } ],
885 eval "ac_cv_flag_$1=yes",
886 eval "ac_cv_flag_$1=no"
889 if eval "test \"`echo '$ac_cv_flag_'$1`\" = yes"; then
899 dnl FPTOOLS_CHECK_LIB_NOWARN(LIBRARY, FUNCTION)
901 AC_DEFUN(FPTOOLS_CHECK_LIB_NOWARN,
902 [FPTOOLS_CHECK_FLAG_NOWARN([function_$2],[],[extern char $2(); $2();],
904 ac_tr_lib=HAVE_LIB`echo $1 | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
906 AC_DEFINE_UNQUOTED($ac_tr_lib)
908 [FPTOOLS_CHECK_FLAG_NOWARN([library_$1],[-l$1],[extern char $2(); $2();],
910 ac_tr_lib=HAVE_LIB`echo $1 | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
912 AC_DEFINE_UNQUOTED($ac_tr_lib)
918 dnl check for prototypes
920 AC_DEFUN([AC_C_PROTOTYPES],
921 [AC_CACHE_CHECK([prototypes], ac_cv_prototypes,
930 ac_cv_prototypes=yes,
931 ac_cv_prototypes=no)])
932 if test "$ac_cv_prototypes" = yes; then
933 AC_DEFINE([HAVE_PROTOTYPES])
937 dnl ** Check which CATALOG file we have to use with DocBook SGML.
939 dnl FPTOOLS_DOCBOOK_CATALOG(VARIABLE, JADE, STYLESHEET, CATALOGS-TO-CHECK-FOR)
941 dnl If any of the catalogs given in CATALOGS-TO-CHECK-FOR works on this
942 dnl platform, let VARIABLE refer to this catalog; otherwise, VARIABLE
943 dnl is set to "no". JADE is the jade executable and STYLESHEET
944 dnl a DocBook style sheet.
946 AC_DEFUN(FPTOOLS_DOCBOOK_CATALOG,
947 [AC_CACHE_CHECK([for DocBook CATALOG], fptools_cv_sgml_catalog,
949 cat > conftest.sgml << EOF
950 <!DOCTYPE Article PUBLIC "-//OASIS//DTD DocBook V3.1//EN">
954 <Author><OtherName>Test</OtherName></Author>
955 <Address>Test</Address>
956 <PubDate>Test</PubDate>
958 <Sect1><Title>Test</Title>
965 fptools_cv_sgml_catalog=no
966 for fptools_catalog in $4; do
967 ac_try="$2 -t rtf -d $3#print -c $fptools_catalog conftest.sgml"
968 if AC_TRY_EVAL(ac_try); then
969 fptools_cv_sgml_catalog=[$]fptools_catalog
975 if test $fptools_cv_sgml_catalog != "no"; then
976 $1=$fptools_cv_sgml_catalog
980 dnl ######################################################################
981 dnl FPTOOLS_SEARCH_LIBS(INCLUDES, FUNCTION, SEARCH-LIBS [, ACTION-IF-FOUND
982 dnl [, ACTION-IF-NOT-FOUND [, OTHER-LIBRARIES]]])
983 dnl Search for a library defining FUNC, if it's not already available.
984 dnl This is almost the same as AC_SEARCH_LIBS, but the INCLUDES can be
986 dnl ######################################################################
988 AC_DEFUN(FPTOOLS_SEARCH_LIBS,
990 AC_CACHE_CHECK([for library containing $2], [ac_cv_search_$2],
991 [ac_func_search_save_LIBS="$LIBS"
993 AC_TRY_LINK([$1], [$2()], [ac_cv_search_$2="none required"])
994 test "$ac_cv_search_$2" = "no" && for i in $3; do
995 LIBS="-l$i $6 $ac_func_search_save_LIBS"
996 AC_TRY_LINK([$1], [$2()],
997 [ac_cv_search_$2="-l$i"
1000 LIBS="$ac_func_search_save_LIBS"])
1001 if test "$ac_cv_search_$2" != "no"; then
1002 test "$ac_cv_search_$2" = "none required" || LIBS="$ac_cv_search_$2 $LIBS"
1008 dnl ####################### -*- Mode: M4 -*- ###########################
1009 dnl Copyright (C) 98, 1999 Matthew D. Langston <langston@SLAC.Stanford.EDU>
1011 dnl This file is free software; you can redistribute it and/or modify it
1012 dnl under the terms of the GNU General Public License as published by
1013 dnl the Free Software Foundation; either version 2 of the License, or
1014 dnl (at your option) any later version.
1016 dnl This file is distributed in the hope that it will be useful, but
1017 dnl WITHOUT ANY WARRANTY; without even the implied warranty of
1018 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
1019 dnl General Public License for more details.
1021 dnl You should have received a copy of the GNU General Public License
1022 dnl along with this file; if not, write to:
1024 dnl Free Software Foundation, Inc.
1027 dnl Boston, MA 02111-1307, USA.
1028 dnl ####################################################################
1031 dnl @synopsis FPTOOLS_CHECK_LIBM
1033 dnl Search for math library (typically -lm).
1035 dnl The variable LIBM (which is not an output variable by default) is
1036 dnl set to a value which is suitable for use in a Makefile (for example,
1037 dnl in make's LOADLIBES macro) provided you AC_SUBST it first.
1039 dnl @author Matthew D. Langston <langston@SLAC.Stanford.EDU>
1041 # FPTOOLS_CHECK_LIBM - check for math library
1042 AC_DEFUN(FPTOOLS_CHECK_LIBM,
1043 [AC_REQUIRE([AC_CANONICAL_HOST])dnl
1047 # These system don't have libm
1050 AC_CHECK_LIB(mw, _mwvalidcheckl, LIBM="-lmw")
1051 AC_CHECK_LIB(m, main, LIBM="$LIBM -lm")
1054 AC_CHECK_LIB(m, main, LIBM="-lm")
1059 dnl ######################################################################
1060 dnl NOTE: Because of portability issues between different autoconf
1061 dnl versions the AC_HELP_STRING macro has been removed from FPTOOLS_HAVE_OPENGL.
1062 dnl Furthermore, caching has been completely rewritten.
1063 dnl ######################################################################
1065 dnl ########################### -*- Mode: M4 -*- #######################
1066 dnl Copyright (C) 98, 1999 Matthew D. Langston <langston@SLAC.Stanford.EDU>
1068 dnl This file is free software; you can redistribute it and/or modify it
1069 dnl under the terms of the GNU General Public License as published by
1070 dnl the Free Software Foundation; either version 2 of the License, or
1071 dnl (at your option) any later version.
1073 dnl This file is distributed in the hope that it will be useful, but
1074 dnl WITHOUT ANY WARRANTY; without even the implied warranty of
1075 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
1076 dnl General Public License for more details.
1078 dnl You should have received a copy of the GNU General Public License
1079 dnl along with this file; if not, write to:
1081 dnl Free Software Foundation, Inc.
1084 dnl Boston, MA 02111-1307, USA.
1085 dnl ####################################################################
1087 dnl @synopsis FPTOOLS_HAVE_OPENGL
1089 dnl Search for OpenGL. We search first for Mesa (a GPL'ed version of
1090 dnl OpenGL) before a vendor's version of OpenGL, unless we were
1091 dnl specifically asked not to with `--with-Mesa=no' or `--without-Mesa'.
1093 dnl The four "standard" OpenGL libraries are searched for: "-lGL",
1094 dnl "-lGLU", "-lGLX" (or "-lMesaGL", "-lMesaGLU" as the case may be) and
1097 dnl All of the libraries that are found (since "-lglut" or "-lGLX" might
1098 dnl be missing) are added to the shell output variable "GL_LIBS", along
1099 dnl with any other libraries that are necessary to successfully link an
1100 dnl OpenGL application (e.g. the X11 libraries). Care has been taken to
1101 dnl make sure that all of the libraries in "GL_LIBS" are listed in the
1104 dnl Additionally, the shell output variable "GL_CFLAGS" is set to any
1105 dnl flags (e.g. "-I" flags) that are necessary to successfully compile
1106 dnl an OpenGL application.
1108 dnl The following shell variable (which are not output variables) are
1109 dnl also set to either "yes" or "no" (depending on which libraries were
1110 dnl found) to help you determine exactly what was found.
1117 dnl A complete little toy "Automake `make distcheck'" package of how to
1118 dnl use this macro is available at:
1120 dnl ftp://ftp.slac.stanford.edu/users/langston/autoconf/ac_opengl-0.01.tar.gz
1122 dnl Please note that as the ac_opengl macro and the toy example evolves,
1123 dnl the version number increases, so you may have to adjust the above
1124 dnl URL accordingly.
1126 dnl @author Matthew D. Langston <langston@SLAC.Stanford.EDU>
1128 AC_DEFUN(FPTOOLS_HAVE_OPENGL,
1130 AC_REQUIRE([AC_PROG_CC])
1131 AC_REQUIRE([AC_PATH_X])
1132 AC_REQUIRE([AC_PATH_XTRA])
1133 AC_REQUIRE([FPTOOLS_CHECK_LIBM])
1135 dnl Check for Mesa first, unless we were asked not to.
1136 dnl AC_HELP_STRING([--with-Mesa],
1137 dnl [Prefer the Mesa library over a vendors native OpenGL library (default=yes)],
1138 dnl with_Mesa_help_string)
1139 dnl AC_ARG_ENABLE(Mesa, $with_Mesa_help_string, use_Mesa=$enableval, use_Mesa=yes)
1140 AC_ARG_ENABLE(Mesa, [ --with-Mesa Prefer the Mesa library over a vendors native OpenGL library (default=yes)], use_Mesa=$enableval, use_Mesa=yes)
1142 if test x"$use_Mesa" = xyes; then
1143 GL_search_list="MesaGL GL opengl32"
1144 GLU_search_list="MesaGLU GLU glu32"
1145 GLX_search_list="MesaGLX GLX"
1147 GL_search_list="GL opengl32 MesaGL"
1148 GLU_search_list="GLU glu32 MesaGLU"
1149 GLX_search_list="GLX MesaGLX"
1155 dnl If we are running under X11 then add in the appropriate libraries.
1156 if ! test x"$no_x" = xyes; then
1157 dnl Add everything we need to compile and link X programs to GL_CFLAGS
1159 GL_CFLAGS="$X_CFLAGS"
1160 GL_X_LIBS="$X_PRE_LIBS $X_LIBS -lX11 -lXext -lXmu -lXt -lXi $X_EXTRA_LIBS $LIBM"
1162 GL_save_CPPFLAGS="$CPPFLAGS"
1163 CPPFLAGS="$GL_CFLAGS"
1165 GL_save_LIBS="$LIBS"
1168 FPTOOLS_SEARCH_LIBS([#include <GL/gl.h>], glEnd, $GL_search_list, have_GL=yes, have_GL=no)
1169 FPTOOLS_SEARCH_LIBS([#include <GL/glu.h>], gluNewQuadric, $GLU_search_list, have_GLU=yes, have_GLU=no)
1170 FPTOOLS_SEARCH_LIBS([#include <GL/glx.h>], glXChooseVisual, $GLX_search_list, have_GLX=yes, have_GLX=no)
1171 FPTOOLS_SEARCH_LIBS([#include <GL/glut.h>], glutMainLoop, glut glut32, have_glut=yes, have_glut=no)
1173 if test -n "$LIBS"; then
1180 AC_CACHE_CHECK([OpenGL flags], mdl_cv_gl_cflags, [mdl_cv_gl_cflags="$GL_CFLAGS"])
1181 GL_CFLAGS="$mdl_cv_gl_cflags"
1183 AC_CACHE_CHECK([OpenGL libs], mdl_cv_gl_libs, [mdl_cv_gl_libs="$GL_LIBS"])
1184 GL_LIBS="$mdl_cv_gl_libs"
1187 dnl Reset GL_X_LIBS regardless, since it was just a temporary variable
1188 dnl and we don't want to be global namespace polluters.
1191 LIBS="$GL_save_LIBS"
1192 CPPFLAGS="$GL_save_CPPFLAGS"
1200 dnl acspecific.m4's defn of AC_PROG_LEX is a bit too permissive, as it
1201 dnl defaults to 'lex' if 'flex' isn't found (without checking whether
1202 dnl 'lex' is actually present along the user's PATH).
1204 AC_DEFUN(AC_PROG_LEX_STRICT,
1205 [AC_CHECK_PROG(LEX, flex, flex)
1208 AC_CHECK_PROG(LEX,lex,lex)
1209 test -z "$LEX" && AC_MSG_ERROR(['lex' or 'flex' is required to compile GHC.])
1214 dnl Check to see whether CC (gcc) supports a particular option.
1216 AC_DEFUN(FPTOOLS_CC_FLAG,
1218 AC_CACHE_CHECK([whether $CC accepts $1], [ac_cv_cc_$2],
1219 [save_CFLAGS="$CFLAGS"
1222 AC_TRY_COMPILE(,[int main(){return(0);}],
1225 CFLAGS="$save_CFLAGS"
1227 if test "$ac_cv_cc_$2"x = "yesx"; then