1 dnl $Id: aclocal.m4,v 1.97 2002/03/04 23:06:40 qrczak 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
93 AC_SUBST(HaveGNURegex)
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(ArCmdRaw,ar)
325 if test -z "$ArCmdRaw"; then
326 echo "You don't seem to have ar in your PATH...I have no idea how to make a library"
329 if $ArCmdRaw clqsZ conftest.a >/dev/null 2>/dev/null; then
332 elif $ArCmdRaw clqs conftest.a >/dev/null 2>/dev/null; then
335 elif $ArCmdRaw cqs conftest.a >/dev/null 2>/dev/null; then
338 elif $ArCmdRaw clq conftest.a >/dev/null 2>/dev/null; then
341 elif $ArCmdRaw cq conftest.a >/dev/null 2>/dev/null; then
344 elif $ArCmdRaw 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 case $HostPlatform in
354 ArCmd="`cygpath -w ${ArCmdRaw} | sed -e 's@\\\\@/@g' ` ${ArCmdArgs}"
356 *) ArCmd="${ArCmdRaw} ${ArCmdArgs}"
359 test -n "$ArCmd" && test -n "$verbose" && echo " setting ArCmd to $ArCmd"
361 if $ArCmd conftest.a -input /dev/null >/dev/null 2>/dev/null; then
362 ArSupportsInput='-input'
367 test -n "$ArSupportsInput" && test -n "$verbose" && echo " setting ArSupportsInput to $ArSupportsInput"
368 AC_SUBST(ArSupportsInput)
369 if test -z "$NeedRanLib"; then
371 test -n "$verbose" && echo " setting RANLIB to $RANLIB"
379 dnl AC_SHEBANG_PERL - can we she-bang perl?
381 AC_DEFUN(FPTOOLS_SHEBANG_PERL,
382 [AC_CACHE_CHECK([if your perl works in shell scripts], fptools_cv_shebang_perl,
387 (SHELL=/bin/sh; export SHELL; ./conftest 69 > /dev/null)
388 if test $? -ne 69; then
389 fptools_cv_shebang_perl=yes
391 fptools_cv_shebang_perl=no
397 dnl Extra testing of the result AC_PROG_CC, testing the gcc version no.
398 dnl *Must* be called after AC_PROG_CC
400 AC_DEFUN(FPTOOLS_HAVE_GCC,
401 [AC_CACHE_CHECK([whether you have an ok gcc], fptools_cv_have_gcc,
402 [if test -z "$GCC"; then
404 echo "You would be better off with gcc"
405 echo "Perhaps it is already installed, but not in your PATH?"
406 fptools_cv_have_gcc='no'
409 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' `"
410 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' `"
412 fptools_cv_have_gcc='yes'
413 if test `eval $is_gcc_v1 2>/dev/null` = "1"; then
414 fptools_cv_have_gcc='no'
416 echo "your gcc version appears to be ..."
418 echo "gcc prior to 2.0 and have never worked with ghc."
419 echo "we recommend 2.95.3, although versions back to 2.7.2 should be ok."
420 AC_MSG_ERROR([gcc 1.X has never been supported])
424 HaveGcc=`echo $fptools_cv_have_gcc | sed 'y/yesno/YESNO/'`
428 dnl Small feature test for perl version. Assumes PerlCmd
429 dnl contains path to perl binary
431 AC_DEFUN(FPTOOLS_CHECK_PERL_VERSION,
432 [$PerlCmd -v >conftest.out 2>&1
433 if grep "version 5" conftest.out >/dev/null 2>&1; then
436 if grep "v5.6" conftest.out >/dev/null 2>&1; then
439 if grep "version 6" conftest.out >/dev/null 2>&1; then
442 echo "Your version of perl probably won't work."
450 dnl Getting at the right version of 'find'
451 dnl (i.e., not the MS util on a Win32 box).
453 AC_DEFUN(FPTOOLS_FIND_FIND,
455 AC_PATH_PROG(Find2Cmd, find)
456 $Find2Cmd --version > conftest.out 2>&1
457 if grep "FIND: Parameter format" conftest.out >/dev/null 2>&1 ; then
458 # Encountered MS' find utility, which is not what we're after.
460 # HACK - AC_CHECK_PROG is useful here in that does let you reject
461 # an (absolute) entry in the path (Find2Cmd). It is not so useful
462 # in that it doesn't let you (AFAIU) set VARIABLE equal to the
463 # absolute path eventually found. So, hack around this by inspecting
464 # what variables hold the abs. path & use them directly.
465 AC_CHECK_PROG(FindCmd,find,`echo $ac_dir/$ac_word`,find,,$Find2Cmd)
473 dnl FPTOOLS_NOCACHE_CHECK prints a message, then sets the
474 dnl values of the second argument to the result of running
475 dnl the commands given by the third. It does not cache its
476 dnl result, so it is suitable for checks which should be
479 AC_DEFUN(FPTOOLS_NOCACHE_CHECK,
480 [AC_MSG_CHECKING([$1])
482 AC_MSG_RESULT([$][$2])
486 dnl FPTOOLS_GHC_VERSION(version)
487 dnl FPTOOLS_GHC_VERSION(major, minor [, patchlevel])
488 dnl FPTOOLS_GHC_VERSION(version, major, minor, patchlevel)
490 dnl Test for version of installed ghc. Uses $GHC.
491 dnl [original version pinched from c2hs]
493 AC_DEFUN(FPTOOLS_GHC_VERSION,
494 [FPTOOLS_NOCACHE_CHECK([version of ghc], [fptools_version_of_ghc],
495 [${WithGhc-ghc} --version > conftestghc 2>&1
496 cat conftestghc >&AC_FD_CC
497 #Useless Use Of cat award...
498 fptools_version_of_ghc=`cat conftestghc | sed -n -e 's/, patchlevel *\([[0-9]]\)/.\1/;s/.* version \([[0-9]][[0-9.]]*\).*/\1/p'`
500 if test "[$]fptools_version_of_ghc" = ""
502 fptools_version_of_ghc='unknown'
504 fptools_version_of_ghc[_major]=`echo [$]fptools_version_of_ghc | sed -e 's/^\([[0-9]]\).*/\1/'`
505 fptools_version_of_ghc[_minor]=`echo [$]fptools_version_of_ghc | sed -e 's/^[[0-9]]\.\([[0-9]]*\).*/\1/'`
506 fptools_version_of_ghc[_pl]=`echo [$]fptools_version_of_ghc | sed -n -e 's/^[[0-9]]\.[[0-9]]*\.\([[0-9]]*\)/\1/p'`
508 if test "[$]fptools_version_of_ghc[_pl]" = ""
510 fptools_version_of_ghc[_all]="[$]fptools_version_of_ghc[_major].[$]fptools_version_of_ghc[_minor]"
511 fptools_version_of_ghc[_pl]="0"
513 fptools_version_of_ghc[_all]="[$]fptools_version_of_ghc[_major].[$]fptools_version_of_ghc[_minor].[$]fptools_version_of_ghc[_pl]"
517 [$1]="[$]fptools_version_of_ghc[_all]"
519 [$1]="[$]fptools_version_of_ghc[_major]"
520 [$2]="[$]fptools_version_of_ghc[_minor]"
522 [$1]="[$]fptools_version_of_ghc[_major]"
523 [$2]="[$]fptools_version_of_ghc[_minor]"
524 [$3]="[$]fptools_version_of_ghc[_pl]"
526 [$1]="[$]fptools_version_of_ghc[_all]"
527 [$2]="[$]fptools_version_of_ghc[_major]"
528 [$3]="[$]fptools_version_of_ghc[_minor]"
529 [$4]="[$]fptools_version_of_ghc[_pl]"
535 dnl ** figure out the alignment restriction of a type
536 dnl (required SIZEOF test but AC_CHECK_SIZEOF doesn't call PROVIDE
537 dnl so we can't call REQUIRE)
539 dnl FPTOOLS_CHECK_ALIGNMENT(TYPE)
540 AC_DEFUN(FPTOOLS_CHECK_ALIGNMENT,
541 [changequote(<<, >>)dnl
542 dnl The name to #define.
543 define(<<AC_TYPE_NAME>>, translit(alignment_$1, [a-z *], [A-Z_P]))dnl
544 dnl The cache variable name.
545 define(<<AC_CV_NAME>>, translit(ac_cv_alignment_$1, [ *], [_p]))dnl
546 dnl The name of the corresponding size.
547 define(<<AC_CV_SIZEOF_NAME>>, translit(ac_cv_sizeof_$1, [ *], [_p]))dnl
549 AC_MSG_CHECKING(alignment of $1)
550 AC_CACHE_VAL(AC_CV_NAME,
557 #define offsetof(ty,field) ((size_t)((char *)&((ty *)0)->field - (char *)(ty *)0))
562 FILE *f=fopen("conftestval", "w");
564 fprintf(f, "%d", offsetof(struct { char c; $1 ty;},ty));
567 AC_CV_NAME=`cat conftestval`,
568 AC_CV_NAME=$AC_CV_SIZEOF_NAME,
569 AC_CV_NAME=$AC_CV_SIZEOF_NAME)])
570 AC_MSG_RESULT($AC_CV_NAME)
571 AC_DEFINE_UNQUOTED(AC_TYPE_NAME, $AC_CV_NAME)
572 AC_PROVIDE($AC_TYPE_NAME)
573 undefine([AC_TYPE_NAME])dnl
574 undefine([AC_CV_NAME])dnl
575 undefine([AC_CV_SIZEOF_NAME])dnl
578 dnl ** Map an arithmetic C type to a Haskell type.
579 dnl Based on autconf's AC_CHECK_SIZEOF.
581 dnl FPTOOLS_CHECK_HTYPE(TYPE [, DEFAULT_VALUE, [, VALUE-FOR-CROSS-COMPILATION])
582 AC_DEFUN(FPTOOLS_CHECK_HTYPE,
583 [changequote(<<, >>)dnl
584 dnl The name to #define.
585 define(<<AC_TYPE_NAME>>, translit(htype_$1, [a-z *], [A-Z_P]))dnl
586 dnl The cache variable name.
587 define(<<AC_CV_NAME>>, translit(fptools_cv_htype_$1, [ *], [_p]))dnl
589 AC_MSG_CHECKING(Haskell type for $1)
590 AC_CACHE_VAL(AC_CV_NAME,
591 [AC_TRY_RUN([#include <stdio.h>
594 #ifdef HAVE_SYS_TYPES_H
595 # include <sys/types.h>
602 #ifdef HAVE_SYS_STAT_H
603 # include <sys/stat.h>
618 #ifdef HAVE_TERMIOS_H
619 # include <termios.h>
637 FILE *f=fopen("conftestval", "w");
639 if (((testing)((int)((testing)1.4))) == ((testing)1.4)) {
641 ((testing)(-1) < (testing)0) ? "Int" : "Word",
645 (sizeof(testing) > sizeof(double)) ? "LDouble" :
646 (sizeof(testing) == sizeof(double)) ? "Double" : "Float");
650 }], AC_CV_NAME=`cat conftestval`,
651 ifelse([$2], , AC_CV_NAME=NotReallyAType, AC_CV_NAME=$2),
652 ifelse([$3], , AC_CV_NAME=NotReallyATypeCross, AC_CV_NAME=$3))]) dnl
653 AC_MSG_RESULT($AC_CV_NAME)
654 AC_DEFINE_UNQUOTED(AC_TYPE_NAME, $AC_CV_NAME)
655 undefine([AC_TYPE_NAME])dnl
656 undefine([AC_CV_NAME])dnl
659 dnl ** figure out whether C compiler supports 'long long's
660 dnl (Closely based on Andreas Zeller's macro for testing
661 dnl for this under C++)
663 dnl If the C compiler supports `long long' types,
664 dnl define `HAVE_LONG_LONG'.
666 AC_DEFUN(FPTOOLS_C_LONG_LONG,
668 AC_REQUIRE([AC_PROG_CC])
669 AC_MSG_CHECKING(whether ${CC} supports long long types)
670 AC_CACHE_VAL(fptools_cv_have_long_long,
674 AC_TRY_COMPILE(,[long long a;],
675 fptools_cv_have_long_long=yes,
676 fptools_cv_have_long_long=no)
679 AC_MSG_RESULT($fptools_cv_have_long_long)
680 if test "$fptools_cv_have_long_long" = yes; then
681 AC_DEFINE(HAVE_LONG_LONG)
685 dnl ** Obtain the value of a C constant.
686 dnl The value will be `(-1)' if the constant is undefined.
688 dnl This is set up so that the argument can be a shell variable.
690 AC_DEFUN(FPTOOLS_CHECK_CCONST,
692 eval "def_name=CCONST_$1"
693 eval "cv_name=ac_cv_cconst_$1"
694 AC_MSG_CHECKING(value of $1)
695 AC_CACHE_VAL($cv_name,
696 [AC_TRY_RUN([#include <stdio.h>
700 FILE *f=fopen("conftestval", "w");
702 fprintf(f, "%d\n", $1);
705 eval "$cv_name=`cat conftestval`",
707 eval "$cv_name=-1")])dnl
708 eval "fptools_check_cconst_result=`echo '$'{$cv_name}`"
709 AC_MSG_RESULT($fptools_check_cconst_result)
710 AC_DEFINE_UNQUOTED($def_name, $fptools_check_cconst_result)
711 unset fptools_check_cconst_result
714 dnl ** Invoke AC_CHECK_CCONST on each argument (which have to separate with
717 AC_DEFUN(FPTOOLS_CHECK_CCONSTS,
718 [for ac_const_name in $1
720 FPTOOLS_CHECK_CCONST($ac_const_name)dnl
725 dnl *** Can we open files in binary mode? ***
727 AC_DEFUN(FPTOOLS_O_BINARY,
729 AC_REQUIRE([AC_PROG_CC])
730 AC_MSG_CHECKING(whether we can open files in binary mode)
731 AC_CACHE_VAL(fptools_cv_have_o_binary,
740 fptools_cv_have_o_binary=yes,
741 fptools_cv_have_o_binary=no)
744 AC_MSG_RESULT($fptools_cv_have_o_binary)
745 if test "$fptools_cv_have_o_binary" = yes; then
746 AC_DEFINE(HAVE_O_BINARY)
750 dnl *** Which one comes first, .text or .data? ***
752 AC_DEFUN(FPTOOLS_CODE_BEFORE_DATA,
753 [AC_CACHE_CHECK([if code section appears before data], fptools_cv_code_bef_data,
755 int f() { return 1; }
757 int main() { return ((char*)&f > (char*)&i); }
760 fptools_cv_code_bef_data=yes, fptools_cv_code_bef_data=no,false)])
761 if test "$fptools_cv_code_bef_data" = yes; then
762 AC_DEFINE(CODE_BEFORE_DATA)
766 dnl *** Helper function **
768 AC_DEFUN(FPTOOLS_IN_SCOPE,
769 [AC_TRY_LINK([extern char* $1;],[return (int)&$2], $3=yes, $3=no)
772 dnl *** What's the end-of-text-section marker called? ***
774 AC_DEFUN([FPTOOLS_END_TEXT_SECTION],
775 [AC_CACHE_CHECK([for end of text section marker],
776 [fptools_cv_end_of_text],
777 [fptools_cv_end_of_text=""
779 for i in data_start _data_start etext _etext __etext; do
780 FPTOOLS_IN_SCOPE($i,$i,fptools_end_of_text)
781 if test "$fptools_end_of_text" = yes; then
782 fptools_cv_end_of_text=$i
787 if test "$not_done" = 1; then
788 FPTOOLS_IN_SCOPE(etext asm("etext"),etext,fptools_end_of_text)
789 if test "$fptools_end_of_text" = yes; then
790 fptools_cv_end_of_text="etext"
793 if test -n "$fptools_cv_end_of_text"; then
794 AC_DEFINE_UNQUOTED([TEXT_SECTION_END_MARKER], $fptools_cv_end_of_text)
796 AC_DEFINE_UNQUOTED([TEXT_SECTION_END_MARKER], dunno_end_of_text)
798 AC_CACHE_CHECK([for end of text section marker declaration],
799 [fptools_cv_end_of_text_decl],
800 [fptools_cv_end_of_text_decl=""
802 for i in data_start _data_start etext _etext __etext; do
803 FPTOOLS_IN_SCOPE($i,$i,fptools_end_of_text_decl)
804 if test "$fptools_end_of_text_decl" = yes; then
805 fptools_cv_end_of_text_decl=$i
810 if test "$not_done" = 1; then
811 FPTOOLS_IN_SCOPE(etext asm("etext"),etext,fptools_end_of_text_decl)
812 if test "$fptools_end_of_text_decl" = yes; then
813 fptools_cv_end_of_text_decl="etext asm(\"etext\")"
816 if test -n "$fptools_cv_end_of_text_decl"; then
817 AC_DEFINE_UNQUOTED([TEXT_SECTION_END_MARKER_DECL], $fptools_cv_end_of_text_decl)
819 AC_DEFINE_UNQUOTED([TEXT_SECTION_END_MARKER_DECL], dunno_end_of_text_decl)
823 dnl *** What's the end-of-data-section marker called? ***
825 AC_DEFUN([FPTOOLS_END_DATA_SECTION],
826 [AC_CACHE_CHECK([for end of data section marker],
827 [fptools_cv_end_of_data],
828 [fptools_cv_end_of_data=""
830 for i in end _end __end; do
831 FPTOOLS_IN_SCOPE($i,$i,fptools_end_of_data)
832 if test "$fptools_end_of_data" = yes; then
833 fptools_cv_end_of_data=$i
838 if test "$not_done" = 1; then
839 FPTOOLS_IN_SCOPE(end asm("end"),end,fptools_end_of_data)
840 if test "$fptools_end_of_data" = yes; then
841 fptools_cv_end_of_data="end"
844 if test -n "$fptools_cv_end_of_data"; then
845 AC_DEFINE_UNQUOTED([DATA_SECTION_END_MARKER], $fptools_cv_end_of_data)
847 AC_DEFINE_UNQUOTED([DATA_SECTION_END_MARKER], dunno_end_of_data)
849 AC_CACHE_CHECK([for end of data section marker declaration],
850 [fptools_cv_end_of_data_decl],
851 [fptools_cv_end_of_data_decl=""
853 for i in end _end __end; do
854 FPTOOLS_IN_SCOPE($i,$i,fptools_end_of_data_decl)
855 if test "$fptools_end_of_data_decl" = yes; then
856 fptools_cv_end_of_data_decl=$i
861 if test "$not_done" = 1; then
862 FPTOOLS_IN_SCOPE(end asm("end"),end,fptools_end_of_data_decl)
863 if test "$fptools_end_of_data_decl" = yes; then
864 fptools_cv_end_of_data_decl="end asm(\"end\")"
867 if test -n "$fptools_cv_end_of_data_decl"; then
868 AC_DEFINE_UNQUOTED([DATA_SECTION_END_MARKER_DECL], $fptools_cv_end_of_data_decl)
870 AC_DEFINE_UNQUOTED([DATA_SECTION_END_MARKER_DECL], dunno_end_of_data_decl)
875 dnl Based on AC_TRY_LINK - run iftrue if links cleanly with no warning
877 dnl FPTOOLS_TRY_LINK_NOWARN(flags,main?,iftrue,iffalse)
879 AC_DEFUN(FPTOOLS_TRY_LINK_NOWARN,
883 cat > conftest.$ac_ext <<EOF
884 dnl This sometimes fails to find confdefs.h, for some reason.
885 dnl [#]line __oline__ "[$]0"
886 [#]line __oline__ "configure"
887 #include "confdefs.h"
889 int t() { return 0; }
891 if AC_TRY_EVAL(ac_link); then
896 ifelse([$4], , , [else
906 dnl Loosely based on AC_CHECK_LIB in acgeneral.m4 in autoconf distribution
908 dnl FPTOOLS_CHECK_FLAG_NOWARN(NAME, FLAG, CODE, iftrue, iffalse)
910 AC_DEFUN(FPTOOLS_CHECK_FLAG_NOWARN,
911 [AC_MSG_CHECKING([for $1])
912 AC_CACHE_VAL(ac_cv_flag_$1,
913 [FPTOOLS_TRY_LINK_NOWARN("$2", [main() { $3; exit(0); } ],
914 eval "ac_cv_flag_$1=yes",
915 eval "ac_cv_flag_$1=no"
918 if eval "test \"`echo '$ac_cv_flag_'$1`\" = yes"; then
928 dnl FPTOOLS_CHECK_LIB_NOWARN(LIBRARY, FUNCTION)
930 AC_DEFUN(FPTOOLS_CHECK_LIB_NOWARN,
931 [FPTOOLS_CHECK_FLAG_NOWARN([function_$2],[],[extern char $2(); $2();],
933 ac_tr_lib=HAVE_LIB`echo $1 | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
935 AC_DEFINE_UNQUOTED($ac_tr_lib)
937 [FPTOOLS_CHECK_FLAG_NOWARN([library_$1],[-l$1],[extern char $2(); $2();],
939 ac_tr_lib=HAVE_LIB`echo $1 | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
941 AC_DEFINE_UNQUOTED($ac_tr_lib)
947 dnl check for prototypes
949 AC_DEFUN([AC_C_PROTOTYPES],
950 [AC_CACHE_CHECK([prototypes], ac_cv_prototypes,
959 ac_cv_prototypes=yes,
960 ac_cv_prototypes=no)])
961 if test "$ac_cv_prototypes" = yes; then
962 AC_DEFINE([HAVE_PROTOTYPES])
966 dnl ** Check which CATALOG file we have to use with DocBook SGML.
968 dnl FPTOOLS_DOCBOOK_CATALOG(VARIABLE, JADE, STYLESHEET, CATALOGS-TO-CHECK-FOR)
970 dnl If any of the catalogs given in CATALOGS-TO-CHECK-FOR works on this
971 dnl platform, let VARIABLE refer to this catalog; otherwise, VARIABLE
972 dnl is set to "no". JADE is the jade executable and STYLESHEET
973 dnl a DocBook style sheet.
975 AC_DEFUN(FPTOOLS_DOCBOOK_CATALOG,
976 [AC_CACHE_CHECK([for DocBook CATALOG], fptools_cv_sgml_catalog,
978 cat > conftest.sgml << EOF
979 <!DOCTYPE Article PUBLIC "-//OASIS//DTD DocBook V3.1//EN">
983 <Author><OtherName>Test</OtherName></Author>
984 <Address>Test</Address>
985 <PubDate>Test</PubDate>
987 <Sect1><Title>Test</Title>
994 fptools_cv_sgml_catalog=no
995 if test -z "$SGML_CATALOG_FILES" ; then
996 for fptools_catalog in $4; do
997 ac_try="$2 -t rtf -d $3#print -c $fptools_catalog conftest.sgml"
998 if AC_TRY_EVAL(ac_try); then
999 fptools_cv_sgml_catalog=[$]fptools_catalog
1004 # If the env var SGML_CATALOG_FILES is defined, assume things are cool.
1005 fptools_cv_sgml_catalog="yes"
1009 if test $fptools_cv_sgml_catalog != "no"; then
1010 $1=$fptools_cv_sgml_catalog
1014 dnl ######################################################################
1015 dnl FPTOOLS_SEARCH_LIBS(INCLUDES, FUNCTION, SEARCH-LIBS [, ACTION-IF-FOUND
1016 dnl [, ACTION-IF-NOT-FOUND [, OTHER-LIBRARIES]]])
1017 dnl Search for a library defining FUNC, if it's not already available.
1018 dnl This is almost the same as AC_SEARCH_LIBS, but the INCLUDES can be
1020 dnl ######################################################################
1022 AC_DEFUN(FPTOOLS_SEARCH_LIBS,
1024 AC_CACHE_CHECK([for library containing $2], [ac_cv_search_$2],
1025 [ac_func_search_save_LIBS="$LIBS"
1026 ac_cv_search_$2="no"
1027 AC_TRY_LINK([$1], [$2()], [ac_cv_search_$2="none required"])
1028 test "$ac_cv_search_$2" = "no" && for i in $3; do
1029 LIBS="-l$i $6 $ac_func_search_save_LIBS"
1030 AC_TRY_LINK([$1], [$2()],
1031 [ac_cv_search_$2="-l$i"
1034 LIBS="$ac_func_search_save_LIBS"])
1035 if test "$ac_cv_search_$2" != "no"; then
1036 test "$ac_cv_search_$2" = "none required" || LIBS="$ac_cv_search_$2 $LIBS"
1042 dnl ####################### -*- Mode: M4 -*- ###########################
1043 dnl Copyright (C) 98, 1999 Matthew D. Langston <langston@SLAC.Stanford.EDU>
1045 dnl This file is free software; you can redistribute it and/or modify it
1046 dnl under the terms of the GNU General Public License as published by
1047 dnl the Free Software Foundation; either version 2 of the License, or
1048 dnl (at your option) any later version.
1050 dnl This file is distributed in the hope that it will be useful, but
1051 dnl WITHOUT ANY WARRANTY; without even the implied warranty of
1052 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
1053 dnl General Public License for more details.
1055 dnl You should have received a copy of the GNU General Public License
1056 dnl along with this file; if not, write to:
1058 dnl Free Software Foundation, Inc.
1061 dnl Boston, MA 02111-1307, USA.
1062 dnl ####################################################################
1065 dnl @synopsis FPTOOLS_CHECK_LIBM
1067 dnl Search for math library (typically -lm).
1069 dnl The variable LIBM (which is not an output variable by default) is
1070 dnl set to a value which is suitable for use in a Makefile (for example,
1071 dnl in make's LOADLIBES macro) provided you AC_SUBST it first.
1073 dnl @author Matthew D. Langston <langston@SLAC.Stanford.EDU>
1075 # FPTOOLS_CHECK_LIBM - check for math library
1076 AC_DEFUN(FPTOOLS_CHECK_LIBM,
1077 [AC_REQUIRE([AC_CANONICAL_HOST])dnl
1081 # These system don't have libm
1084 AC_CHECK_LIB(mw, _mwvalidcheckl, LIBM="-lmw")
1085 AC_CHECK_LIB(m, main, LIBM="$LIBM -lm")
1088 AC_CHECK_LIB(m, main, LIBM="-lm")
1093 dnl ######################################################################
1094 dnl NOTE: Because of portability issues between different autoconf
1095 dnl versions the AC_HELP_STRING macro has been removed from FPTOOLS_HAVE_OPENGL.
1096 dnl Furthermore, caching has been completely rewritten.
1097 dnl ######################################################################
1099 dnl ########################### -*- Mode: M4 -*- #######################
1100 dnl Copyright (C) 98, 1999 Matthew D. Langston <langston@SLAC.Stanford.EDU>
1102 dnl This file is free software; you can redistribute it and/or modify it
1103 dnl under the terms of the GNU General Public License as published by
1104 dnl the Free Software Foundation; either version 2 of the License, or
1105 dnl (at your option) any later version.
1107 dnl This file is distributed in the hope that it will be useful, but
1108 dnl WITHOUT ANY WARRANTY; without even the implied warranty of
1109 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
1110 dnl General Public License for more details.
1112 dnl You should have received a copy of the GNU General Public License
1113 dnl along with this file; if not, write to:
1115 dnl Free Software Foundation, Inc.
1118 dnl Boston, MA 02111-1307, USA.
1119 dnl ####################################################################
1121 dnl @synopsis FPTOOLS_HAVE_OPENGL
1123 dnl Search for OpenGL. We search first for Mesa (a GPL'ed version of
1124 dnl OpenGL) before a vendor's version of OpenGL, unless we were
1125 dnl specifically asked not to with `--with-Mesa=no' or `--without-Mesa'.
1127 dnl The four "standard" OpenGL libraries are searched for: "-lGL",
1128 dnl "-lGLU", "-lGLX" (or "-lMesaGL", "-lMesaGLU" as the case may be) and
1131 dnl All of the libraries that are found (since "-lglut" or "-lGLX" might
1132 dnl be missing) are added to the shell output variable "GL_LIBS", along
1133 dnl with any other libraries that are necessary to successfully link an
1134 dnl OpenGL application (e.g. the X11 libraries). Care has been taken to
1135 dnl make sure that all of the libraries in "GL_LIBS" are listed in the
1138 dnl Additionally, the shell output variable "GL_CFLAGS" is set to any
1139 dnl flags (e.g. "-I" flags) that are necessary to successfully compile
1140 dnl an OpenGL application.
1142 dnl The following shell variable (which are not output variables) are
1143 dnl also set to either "yes" or "no" (depending on which libraries were
1144 dnl found) to help you determine exactly what was found.
1151 dnl A complete little toy "Automake `make distcheck'" package of how to
1152 dnl use this macro is available at:
1154 dnl ftp://ftp.slac.stanford.edu/users/langston/autoconf/ac_opengl-0.01.tar.gz
1156 dnl Please note that as the ac_opengl macro and the toy example evolves,
1157 dnl the version number increases, so you may have to adjust the above
1158 dnl URL accordingly.
1160 dnl @author Matthew D. Langston <langston@SLAC.Stanford.EDU>
1162 AC_DEFUN(FPTOOLS_HAVE_OPENGL,
1164 AC_REQUIRE([AC_PROG_CC])
1165 AC_REQUIRE([AC_PATH_X])
1166 AC_REQUIRE([AC_PATH_XTRA])
1167 AC_REQUIRE([FPTOOLS_CHECK_LIBM])
1169 dnl Check for Mesa first, unless we were asked not to.
1170 dnl AC_HELP_STRING([--with-Mesa],
1171 dnl [Prefer the Mesa library over a vendors native OpenGL library (default=yes)],
1172 dnl with_Mesa_help_string)
1173 dnl AC_ARG_ENABLE(Mesa, $with_Mesa_help_string, use_Mesa=$enableval, use_Mesa=yes)
1174 AC_ARG_ENABLE(Mesa, [ --with-Mesa Prefer the Mesa library over a vendors native OpenGL library (default=no)], use_Mesa=$enableval, use_Mesa=no)
1176 if test x"$use_Mesa" = xyes; then
1177 GL_search_list="MesaGL GL opengl32"
1178 GLU_search_list="MesaGLU GLU glu32"
1179 GLX_search_list="MesaGLX GLX"
1181 GL_search_list="GL opengl32 MesaGL"
1182 GLU_search_list="GLU glu32 MesaGLU"
1183 GLX_search_list="GLX MesaGLX"
1189 dnl If we are running under X11 then add in the appropriate libraries.
1190 if ! test x"$no_x" = xyes; then
1191 dnl Add everything we need to compile and link X programs to GL_CFLAGS
1193 GL_CFLAGS="$X_CFLAGS"
1194 GL_X_LIBS="$X_PRE_LIBS $X_LIBS -lX11 -lXext -lXmu -lXt -lXi $X_EXTRA_LIBS $LIBM"
1196 GL_save_CPPFLAGS="$CPPFLAGS"
1197 CPPFLAGS="$GL_CFLAGS"
1199 GL_save_LIBS="$LIBS"
1202 FPTOOLS_SEARCH_LIBS([#include <GL/gl.h>], glEnd, $GL_search_list, have_GL=yes, have_GL=no)
1203 FPTOOLS_SEARCH_LIBS([#include <GL/glu.h>], gluNewQuadric, $GLU_search_list, have_GLU=yes, have_GLU=no)
1204 FPTOOLS_SEARCH_LIBS([#include <GL/glx.h>], glXChooseVisual, $GLX_search_list, have_GLX=yes, have_GLX=no)
1205 FPTOOLS_SEARCH_LIBS([#include <GL/glut.h>], glutMainLoop, glut glut32, have_glut=yes, have_glut=no)
1207 if test -n "$LIBS"; then
1214 AC_CACHE_CHECK([OpenGL flags], mdl_cv_gl_cflags, [mdl_cv_gl_cflags="$GL_CFLAGS"])
1215 GL_CFLAGS="$mdl_cv_gl_cflags"
1217 AC_CACHE_CHECK([OpenGL libs], mdl_cv_gl_libs, [mdl_cv_gl_libs="$GL_LIBS"])
1218 GL_LIBS="$mdl_cv_gl_libs"
1221 dnl Reset GL_X_LIBS regardless, since it was just a temporary variable
1222 dnl and we don't want to be global namespace polluters.
1225 LIBS="$GL_save_LIBS"
1226 CPPFLAGS="$GL_save_CPPFLAGS"
1234 dnl acspecific.m4's defn of AC_PROG_LEX is a bit too permissive, as it
1235 dnl defaults to 'lex' if 'flex' isn't found (without checking whether
1236 dnl 'lex' is actually present along the user's PATH).
1238 AC_DEFUN(AC_PROG_LEX_STRICT,
1239 [AC_CHECK_PROG(LEX, flex, flex)
1242 AC_CHECK_PROG(LEX,lex,lex)
1243 test -z "$LEX" && AC_MSG_ERROR(['lex' or 'flex' is required to compile GHC.])
1248 dnl Check to see whether CC (gcc) supports a particular option.
1250 AC_DEFUN(FPTOOLS_CC_FLAG,
1252 AC_CACHE_CHECK([whether $CC accepts $1], [ac_cv_cc_$2],
1253 [save_CFLAGS="$CFLAGS"
1256 AC_TRY_COMPILE(,[int main(){return(0);}],
1259 CFLAGS="$save_CFLAGS"
1261 if test "$ac_cv_cc_$2"x = "yesx"; then