1 dnl $Id: aclocal.m4,v 1.92 2002/01/07 20:46:52 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>
596 #ifdef HAVE_SYS_TYPES_H
597 # include <sys/types.h>
604 #ifdef HAVE_SYS_STAT_H
605 # include <sys/stat.h>
620 #ifdef HAVE_TERMIOS_H
621 # include <termios.h>
639 FILE *f=fopen("conftestval", "w");
641 if (((testing)((int)((testing)1.4))) == ((testing)1.4)) {
643 ((testing)(-1) < (testing)0) ? "Int" : "Word",
647 (sizeof(testing) > sizeof(double)) ? "LDouble" :
648 (sizeof(testing) == sizeof(double)) ? "Double" : "Float");
652 }], AC_CV_NAME=`cat conftestval`,
653 ifelse([$2], , AC_CV_NAME=NotReallyAType, AC_CV_NAME=$2),
654 ifelse([$3], , AC_CV_NAME=NotReallyATypeCross, AC_CV_NAME=$3))]) dnl
655 AC_MSG_RESULT($AC_CV_NAME)
656 AC_DEFINE_UNQUOTED(AC_TYPE_NAME, $AC_CV_NAME)
657 undefine([AC_TYPE_NAME])dnl
658 undefine([AC_CV_NAME])dnl
661 dnl ** figure out whether C compiler supports 'long long's
662 dnl (Closely based on Andreas Zeller's macro for testing
663 dnl for this under C++)
665 dnl If the C compiler supports `long long' types,
666 dnl define `HAVE_LONG_LONG'.
668 AC_DEFUN(FPTOOLS_C_LONG_LONG,
670 AC_REQUIRE([AC_PROG_CC])
671 AC_MSG_CHECKING(whether ${CC} supports long long types)
672 AC_CACHE_VAL(fptools_cv_have_long_long,
676 AC_TRY_COMPILE(,[long long a;],
677 fptools_cv_have_long_long=yes,
678 fptools_cv_have_long_long=no)
681 AC_MSG_RESULT($fptools_cv_have_long_long)
682 if test "$fptools_cv_have_long_long" = yes; then
683 AC_DEFINE(HAVE_LONG_LONG)
687 dnl ** Obtain the value of a C constant.
688 dnl The value will be `(-1)' if the constant is undefined.
690 dnl This is set up so that the argument can be a shell variable.
692 AC_DEFUN(FPTOOLS_CHECK_CCONST,
694 eval "def_name=CCONST_$1"
695 eval "cv_name=ac_cv_cconst_$1"
696 AC_MSG_CHECKING(value of $1)
697 AC_CACHE_VAL($cv_name,
698 [AC_TRY_RUN([#include <stdio.h>
702 FILE *f=fopen("conftestval", "w");
704 fprintf(f, "%d\n", $1);
707 eval "$cv_name=`cat conftestval`",
709 eval "$cv_name=-1")])dnl
710 eval "fptools_check_cconst_result=`echo '$'{$cv_name}`"
711 AC_MSG_RESULT($fptools_check_cconst_result)
712 AC_DEFINE_UNQUOTED($def_name, $fptools_check_cconst_result)
713 unset fptools_check_cconst_result
716 dnl ** Invoke AC_CHECK_CCONST on each argument (which have to separate with
719 AC_DEFUN(FPTOOLS_CHECK_CCONSTS,
720 [for ac_const_name in $1
722 FPTOOLS_CHECK_CCONST($ac_const_name)dnl
727 dnl *** Can we open files in binary mode? ***
729 AC_DEFUN(FPTOOLS_O_BINARY,
731 AC_REQUIRE([AC_PROG_CC])
732 AC_MSG_CHECKING(whether we can open files in binary mode)
733 AC_CACHE_VAL(fptools_cv_have_o_binary,
742 fptools_cv_have_o_binary=yes,
743 fptools_cv_have_o_binary=no)
746 AC_MSG_RESULT($fptools_cv_have_o_binary)
747 if test "$fptools_cv_have_o_binary" = yes; then
748 AC_DEFINE(HAVE_O_BINARY)
752 dnl *** Which one comes first, .text or .data? ***
754 AC_DEFUN(FPTOOLS_CODE_BEFORE_DATA,
755 [AC_CACHE_CHECK([if code section appears before data], fptools_cv_code_bef_data,
757 int f() { return 1; }
759 int main() { return ((char*)&f > (char*)&i); }
762 fptools_cv_code_bef_data=yes, fptools_cv_code_bef_data=no,false)])
763 if test "$fptools_cv_code_bef_data" = yes; then
764 AC_DEFINE(CODE_BEFORE_DATA)
768 dnl *** Helper function **
770 AC_DEFUN(FPTOOLS_IN_SCOPE,
771 [AC_TRY_LINK([extern char* $1;],[return (int)&$2], $3=yes, $3=no)
774 dnl *** What's the end-of-text-section marker called? ***
776 AC_DEFUN([FPTOOLS_END_TEXT_SECTION],
777 [AC_CACHE_CHECK([for end of text section marker],
778 [fptools_cv_end_of_text],
779 [fptools_cv_end_of_text=""
781 for i in data_start _data_start etext _etext __etext; do
782 FPTOOLS_IN_SCOPE($i,$i,fptools_end_of_text)
783 if test "$fptools_end_of_text" = yes; then
784 fptools_cv_end_of_text=$i
789 if test "$not_done" = 1; then
790 FPTOOLS_IN_SCOPE(etext asm("etext"),etext,fptools_end_of_text)
791 if test "$fptools_end_of_text" = yes; then
792 fptools_cv_end_of_text="etext"
795 if test -n "$fptools_cv_end_of_text"; then
796 AC_DEFINE_UNQUOTED([TEXT_SECTION_END_MARKER], $fptools_cv_end_of_text)
798 AC_DEFINE_UNQUOTED([TEXT_SECTION_END_MARKER], dunno_end_of_text)
800 AC_CACHE_CHECK([for end of text section marker declaration],
801 [fptools_cv_end_of_text_decl],
802 [fptools_cv_end_of_text_decl=""
804 for i in data_start _data_start etext _etext __etext; do
805 FPTOOLS_IN_SCOPE($i,$i,fptools_end_of_text_decl)
806 if test "$fptools_end_of_text_decl" = yes; then
807 fptools_cv_end_of_text_decl=$i
812 if test "$not_done" = 1; then
813 FPTOOLS_IN_SCOPE(etext asm("etext"),etext,fptools_end_of_text_decl)
814 if test "$fptools_end_of_text_decl" = yes; then
815 fptools_cv_end_of_text_decl="etext asm(\"etext\")"
818 if test -n "$fptools_cv_end_of_text_decl"; then
819 AC_DEFINE_UNQUOTED([TEXT_SECTION_END_MARKER_DECL], $fptools_cv_end_of_text_decl)
821 AC_DEFINE_UNQUOTED([TEXT_SECTION_END_MARKER_DECL], dunno_end_of_text_decl)
825 dnl *** What's the end-of-data-section marker called? ***
827 AC_DEFUN([FPTOOLS_END_DATA_SECTION],
828 [AC_CACHE_CHECK([for end of data section marker],
829 [fptools_cv_end_of_data],
830 [fptools_cv_end_of_data=""
832 for i in end _end __end; do
833 FPTOOLS_IN_SCOPE($i,$i,fptools_end_of_data)
834 if test "$fptools_end_of_data" = yes; then
835 fptools_cv_end_of_data=$i
840 if test "$not_done" = 1; then
841 FPTOOLS_IN_SCOPE(end asm("end"),end,fptools_end_of_data)
842 if test "$fptools_end_of_data" = yes; then
843 fptools_cv_end_of_data="end"
846 if test -n "$fptools_cv_end_of_data"; then
847 AC_DEFINE_UNQUOTED([DATA_SECTION_END_MARKER], $fptools_cv_end_of_data)
849 AC_DEFINE_UNQUOTED([DATA_SECTION_END_MARKER], dunno_end_of_data)
851 AC_CACHE_CHECK([for end of data section marker declaration],
852 [fptools_cv_end_of_data_decl],
853 [fptools_cv_end_of_data_decl=""
855 for i in end _end __end; do
856 FPTOOLS_IN_SCOPE($i,$i,fptools_end_of_data_decl)
857 if test "$fptools_end_of_data_decl" = yes; then
858 fptools_cv_end_of_data_decl=$i
863 if test "$not_done" = 1; then
864 FPTOOLS_IN_SCOPE(end asm("end"),end,fptools_end_of_data_decl)
865 if test "$fptools_end_of_data_decl" = yes; then
866 fptools_cv_end_of_data_decl="end asm(\"end\")"
869 if test -n "$fptools_cv_end_of_data_decl"; then
870 AC_DEFINE_UNQUOTED([DATA_SECTION_END_MARKER_DECL], $fptools_cv_end_of_data_decl)
872 AC_DEFINE_UNQUOTED([DATA_SECTION_END_MARKER_DECL], dunno_end_of_data_decl)
877 dnl Based on AC_TRY_LINK - run iftrue if links cleanly with no warning
879 dnl FPTOOLS_TRY_LINK_NOWARN(flags,main?,iftrue,iffalse)
881 AC_DEFUN(FPTOOLS_TRY_LINK_NOWARN,
885 cat > conftest.$ac_ext <<EOF
886 dnl This sometimes fails to find confdefs.h, for some reason.
887 dnl [#]line __oline__ "[$]0"
888 [#]line __oline__ "configure"
889 #include "confdefs.h"
891 int t() { return 0; }
893 if AC_TRY_EVAL(ac_link); then
898 ifelse([$4], , , [else
908 dnl Loosely based on AC_CHECK_LIB in acgeneral.m4 in autoconf distribution
910 dnl FPTOOLS_CHECK_FLAG_NOWARN(NAME, FLAG, CODE, iftrue, iffalse)
912 AC_DEFUN(FPTOOLS_CHECK_FLAG_NOWARN,
913 [AC_MSG_CHECKING([for $1])
914 AC_CACHE_VAL(ac_cv_flag_$1,
915 [FPTOOLS_TRY_LINK_NOWARN("$2", [main() { $3; exit(0); } ],
916 eval "ac_cv_flag_$1=yes",
917 eval "ac_cv_flag_$1=no"
920 if eval "test \"`echo '$ac_cv_flag_'$1`\" = yes"; then
930 dnl FPTOOLS_CHECK_LIB_NOWARN(LIBRARY, FUNCTION)
932 AC_DEFUN(FPTOOLS_CHECK_LIB_NOWARN,
933 [FPTOOLS_CHECK_FLAG_NOWARN([function_$2],[],[extern char $2(); $2();],
935 ac_tr_lib=HAVE_LIB`echo $1 | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
937 AC_DEFINE_UNQUOTED($ac_tr_lib)
939 [FPTOOLS_CHECK_FLAG_NOWARN([library_$1],[-l$1],[extern char $2(); $2();],
941 ac_tr_lib=HAVE_LIB`echo $1 | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
943 AC_DEFINE_UNQUOTED($ac_tr_lib)
949 dnl check for prototypes
951 AC_DEFUN([AC_C_PROTOTYPES],
952 [AC_CACHE_CHECK([prototypes], ac_cv_prototypes,
961 ac_cv_prototypes=yes,
962 ac_cv_prototypes=no)])
963 if test "$ac_cv_prototypes" = yes; then
964 AC_DEFINE([HAVE_PROTOTYPES])
968 dnl ** Check which CATALOG file we have to use with DocBook SGML.
970 dnl FPTOOLS_DOCBOOK_CATALOG(VARIABLE, JADE, STYLESHEET, CATALOGS-TO-CHECK-FOR)
972 dnl If any of the catalogs given in CATALOGS-TO-CHECK-FOR works on this
973 dnl platform, let VARIABLE refer to this catalog; otherwise, VARIABLE
974 dnl is set to "no". JADE is the jade executable and STYLESHEET
975 dnl a DocBook style sheet.
977 AC_DEFUN(FPTOOLS_DOCBOOK_CATALOG,
978 [AC_CACHE_CHECK([for DocBook CATALOG], fptools_cv_sgml_catalog,
980 cat > conftest.sgml << EOF
981 <!DOCTYPE Article PUBLIC "-//OASIS//DTD DocBook V3.1//EN">
985 <Author><OtherName>Test</OtherName></Author>
986 <Address>Test</Address>
987 <PubDate>Test</PubDate>
989 <Sect1><Title>Test</Title>
996 fptools_cv_sgml_catalog=no
997 for fptools_catalog in $4; do
998 ac_try="$2 -t rtf -d $3#print -c $fptools_catalog conftest.sgml"
999 if AC_TRY_EVAL(ac_try); then
1000 fptools_cv_sgml_catalog=[$]fptools_catalog
1006 if test $fptools_cv_sgml_catalog != "no"; then
1007 $1=$fptools_cv_sgml_catalog
1011 dnl ######################################################################
1012 dnl FPTOOLS_SEARCH_LIBS(INCLUDES, FUNCTION, SEARCH-LIBS [, ACTION-IF-FOUND
1013 dnl [, ACTION-IF-NOT-FOUND [, OTHER-LIBRARIES]]])
1014 dnl Search for a library defining FUNC, if it's not already available.
1015 dnl This is almost the same as AC_SEARCH_LIBS, but the INCLUDES can be
1017 dnl ######################################################################
1019 AC_DEFUN(FPTOOLS_SEARCH_LIBS,
1021 AC_CACHE_CHECK([for library containing $2], [ac_cv_search_$2],
1022 [ac_func_search_save_LIBS="$LIBS"
1023 ac_cv_search_$2="no"
1024 AC_TRY_LINK([$1], [$2()], [ac_cv_search_$2="none required"])
1025 test "$ac_cv_search_$2" = "no" && for i in $3; do
1026 LIBS="-l$i $6 $ac_func_search_save_LIBS"
1027 AC_TRY_LINK([$1], [$2()],
1028 [ac_cv_search_$2="-l$i"
1031 LIBS="$ac_func_search_save_LIBS"])
1032 if test "$ac_cv_search_$2" != "no"; then
1033 test "$ac_cv_search_$2" = "none required" || LIBS="$ac_cv_search_$2 $LIBS"
1039 dnl ####################### -*- Mode: M4 -*- ###########################
1040 dnl Copyright (C) 98, 1999 Matthew D. Langston <langston@SLAC.Stanford.EDU>
1042 dnl This file is free software; you can redistribute it and/or modify it
1043 dnl under the terms of the GNU General Public License as published by
1044 dnl the Free Software Foundation; either version 2 of the License, or
1045 dnl (at your option) any later version.
1047 dnl This file is distributed in the hope that it will be useful, but
1048 dnl WITHOUT ANY WARRANTY; without even the implied warranty of
1049 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
1050 dnl General Public License for more details.
1052 dnl You should have received a copy of the GNU General Public License
1053 dnl along with this file; if not, write to:
1055 dnl Free Software Foundation, Inc.
1058 dnl Boston, MA 02111-1307, USA.
1059 dnl ####################################################################
1062 dnl @synopsis FPTOOLS_CHECK_LIBM
1064 dnl Search for math library (typically -lm).
1066 dnl The variable LIBM (which is not an output variable by default) is
1067 dnl set to a value which is suitable for use in a Makefile (for example,
1068 dnl in make's LOADLIBES macro) provided you AC_SUBST it first.
1070 dnl @author Matthew D. Langston <langston@SLAC.Stanford.EDU>
1072 # FPTOOLS_CHECK_LIBM - check for math library
1073 AC_DEFUN(FPTOOLS_CHECK_LIBM,
1074 [AC_REQUIRE([AC_CANONICAL_HOST])dnl
1078 # These system don't have libm
1081 AC_CHECK_LIB(mw, _mwvalidcheckl, LIBM="-lmw")
1082 AC_CHECK_LIB(m, main, LIBM="$LIBM -lm")
1085 AC_CHECK_LIB(m, main, LIBM="-lm")
1090 dnl ######################################################################
1091 dnl NOTE: Because of portability issues between different autoconf
1092 dnl versions the AC_HELP_STRING macro has been removed from FPTOOLS_HAVE_OPENGL.
1093 dnl Furthermore, caching has been completely rewritten.
1094 dnl ######################################################################
1096 dnl ########################### -*- Mode: M4 -*- #######################
1097 dnl Copyright (C) 98, 1999 Matthew D. Langston <langston@SLAC.Stanford.EDU>
1099 dnl This file is free software; you can redistribute it and/or modify it
1100 dnl under the terms of the GNU General Public License as published by
1101 dnl the Free Software Foundation; either version 2 of the License, or
1102 dnl (at your option) any later version.
1104 dnl This file is distributed in the hope that it will be useful, but
1105 dnl WITHOUT ANY WARRANTY; without even the implied warranty of
1106 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
1107 dnl General Public License for more details.
1109 dnl You should have received a copy of the GNU General Public License
1110 dnl along with this file; if not, write to:
1112 dnl Free Software Foundation, Inc.
1115 dnl Boston, MA 02111-1307, USA.
1116 dnl ####################################################################
1118 dnl @synopsis FPTOOLS_HAVE_OPENGL
1120 dnl Search for OpenGL. We search first for Mesa (a GPL'ed version of
1121 dnl OpenGL) before a vendor's version of OpenGL, unless we were
1122 dnl specifically asked not to with `--with-Mesa=no' or `--without-Mesa'.
1124 dnl The four "standard" OpenGL libraries are searched for: "-lGL",
1125 dnl "-lGLU", "-lGLX" (or "-lMesaGL", "-lMesaGLU" as the case may be) and
1128 dnl All of the libraries that are found (since "-lglut" or "-lGLX" might
1129 dnl be missing) are added to the shell output variable "GL_LIBS", along
1130 dnl with any other libraries that are necessary to successfully link an
1131 dnl OpenGL application (e.g. the X11 libraries). Care has been taken to
1132 dnl make sure that all of the libraries in "GL_LIBS" are listed in the
1135 dnl Additionally, the shell output variable "GL_CFLAGS" is set to any
1136 dnl flags (e.g. "-I" flags) that are necessary to successfully compile
1137 dnl an OpenGL application.
1139 dnl The following shell variable (which are not output variables) are
1140 dnl also set to either "yes" or "no" (depending on which libraries were
1141 dnl found) to help you determine exactly what was found.
1148 dnl A complete little toy "Automake `make distcheck'" package of how to
1149 dnl use this macro is available at:
1151 dnl ftp://ftp.slac.stanford.edu/users/langston/autoconf/ac_opengl-0.01.tar.gz
1153 dnl Please note that as the ac_opengl macro and the toy example evolves,
1154 dnl the version number increases, so you may have to adjust the above
1155 dnl URL accordingly.
1157 dnl @author Matthew D. Langston <langston@SLAC.Stanford.EDU>
1159 AC_DEFUN(FPTOOLS_HAVE_OPENGL,
1161 AC_REQUIRE([AC_PROG_CC])
1162 AC_REQUIRE([AC_PATH_X])
1163 AC_REQUIRE([AC_PATH_XTRA])
1164 AC_REQUIRE([FPTOOLS_CHECK_LIBM])
1166 dnl Check for Mesa first, unless we were asked not to.
1167 dnl AC_HELP_STRING([--with-Mesa],
1168 dnl [Prefer the Mesa library over a vendors native OpenGL library (default=yes)],
1169 dnl with_Mesa_help_string)
1170 dnl AC_ARG_ENABLE(Mesa, $with_Mesa_help_string, use_Mesa=$enableval, use_Mesa=yes)
1171 AC_ARG_ENABLE(Mesa, [ --with-Mesa Prefer the Mesa library over a vendors native OpenGL library (default=yes)], use_Mesa=$enableval, use_Mesa=yes)
1173 if test x"$use_Mesa" = xyes; then
1174 GL_search_list="MesaGL GL opengl32"
1175 GLU_search_list="MesaGLU GLU glu32"
1176 GLX_search_list="MesaGLX GLX"
1178 GL_search_list="GL opengl32 MesaGL"
1179 GLU_search_list="GLU glu32 MesaGLU"
1180 GLX_search_list="GLX MesaGLX"
1186 dnl If we are running under X11 then add in the appropriate libraries.
1187 if ! test x"$no_x" = xyes; then
1188 dnl Add everything we need to compile and link X programs to GL_CFLAGS
1190 GL_CFLAGS="$X_CFLAGS"
1191 GL_X_LIBS="$X_PRE_LIBS $X_LIBS -lX11 -lXext -lXmu -lXt -lXi $X_EXTRA_LIBS $LIBM"
1193 GL_save_CPPFLAGS="$CPPFLAGS"
1194 CPPFLAGS="$GL_CFLAGS"
1196 GL_save_LIBS="$LIBS"
1199 FPTOOLS_SEARCH_LIBS([#include <GL/gl.h>], glEnd, $GL_search_list, have_GL=yes, have_GL=no)
1200 FPTOOLS_SEARCH_LIBS([#include <GL/glu.h>], gluNewQuadric, $GLU_search_list, have_GLU=yes, have_GLU=no)
1201 FPTOOLS_SEARCH_LIBS([#include <GL/glx.h>], glXChooseVisual, $GLX_search_list, have_GLX=yes, have_GLX=no)
1202 FPTOOLS_SEARCH_LIBS([#include <GL/glut.h>], glutMainLoop, glut glut32, have_glut=yes, have_glut=no)
1204 if test -n "$LIBS"; then
1211 AC_CACHE_CHECK([OpenGL flags], mdl_cv_gl_cflags, [mdl_cv_gl_cflags="$GL_CFLAGS"])
1212 GL_CFLAGS="$mdl_cv_gl_cflags"
1214 AC_CACHE_CHECK([OpenGL libs], mdl_cv_gl_libs, [mdl_cv_gl_libs="$GL_LIBS"])
1215 GL_LIBS="$mdl_cv_gl_libs"
1218 dnl Reset GL_X_LIBS regardless, since it was just a temporary variable
1219 dnl and we don't want to be global namespace polluters.
1222 LIBS="$GL_save_LIBS"
1223 CPPFLAGS="$GL_save_CPPFLAGS"
1231 dnl acspecific.m4's defn of AC_PROG_LEX is a bit too permissive, as it
1232 dnl defaults to 'lex' if 'flex' isn't found (without checking whether
1233 dnl 'lex' is actually present along the user's PATH).
1235 AC_DEFUN(AC_PROG_LEX_STRICT,
1236 [AC_CHECK_PROG(LEX, flex, flex)
1239 AC_CHECK_PROG(LEX,lex,lex)
1240 test -z "$LEX" && AC_MSG_ERROR(['lex' or 'flex' is required to compile GHC.])
1245 dnl Check to see whether CC (gcc) supports a particular option.
1247 AC_DEFUN(FPTOOLS_CC_FLAG,
1249 AC_CACHE_CHECK([whether $CC accepts $1], [ac_cv_cc_$2],
1250 [save_CFLAGS="$CFLAGS"
1253 AC_TRY_COMPILE(,[int main(){return(0);}],
1256 CFLAGS="$save_CFLAGS"
1258 if test "$ac_cv_cc_$2"x = "yesx"; then