dnl $Id: aclocal.m4,v 1.71 2001/04/20 10:56:12 michaelw Exp $ dnl dnl Extra autoconf macros for the Glasgow fptools dnl dnl To be a good autoconf citizen, names of local macros have dnl prefixed with FPTOOLS_ to ensure we don't clash dnl with any pre-supplied autoconf ones. dnl dnl Is timezone around? (in a header file) dnl AC_DEFUN(FPTOOLS_HAVE_TIMEZONE, [AC_CACHE_CHECK([timezone], fptools_cv_have_timezone, [AC_TRY_COMPILE([#if TIME_WITH_SYS_TIME # include # include #else # if HAVE_SYS_TIME_H # include # else # include # endif #endif ], [return timezone;], fptools_cv_have_timezone=yes, fptools_cv_have_timezone=no)]) if test "$fptools_cv_have_timezone" = yes; then AC_DEFINE(HAVE_TIMEZONE) fi ]) dnl dnl Has timezone the type time_t or long (HP-UX 10.20 apparently dnl has `long'..) dnl AC_DEFUN(FPTOOLS_TYPE_TIMEZONE, [AC_CACHE_CHECK([type of timezone], fptools_cv_type_timezone, [AC_TRY_COMPILE([#if TIME_WITH_SYS_TIME # include # include #else # if HAVE_SYS_TIME_H # include # else # include # endif #endif extern time_t timezone; ], [int i;], fptools_cv_type_timezone=time_t, fptools_cv_type_timezone=long)]) AC_DEFINE_UNQUOTED(TYPE_TIMEZONE, $fptools_cv_type_timezone) ]) dnl *** Is altzone available? *** dnl AC_DEFUN(FPTOOLS_ALTZONE, [AC_CACHE_CHECK([altzone], fptools_cv_altzone, [AC_TRY_LINK([#if TIME_WITH_SYS_TIME # include # include #else # if HAVE_SYS_TIME_H # include # else # include # endif #endif ], [return altzone;], fptools_cv_altzone=yes, fptools_cv_altzone=no)]) if test "$fptools_cv_altzone" = yes; then AC_DEFINE(HAVE_ALTZONE) fi ]) dnl *** Does libc contain GNU regex? *** dnl AC_DEFUN(FPTOOLS_REGEX_IN_LIBC, [AC_CACHE_CHECK([for GNU regex in libc], fptools_cv_have_regex, [AC_TRY_LINK([#if HAVE_UNISTD_H #include #endif #include ],[ struct re_pattern_buffer patbuf; re_compile_pattern("",0,&patbuf); ], fptools_cv_have_regex=yes, fptools_cv_have_regex=no)]) if test "$fptools_cv_have_regex" = yes; then HaveRegex=YES else HaveRegex=NO fi AC_SUBST(HaveRegex) ]) dnl ** check for leading underscores in symbol names dnl dnl Test for determining whether symbol names have a leading dnl underscore. dnl dnl We assume that they _haven't_ if anything goes wrong. dnl dnl Some nlist implementations seem to try to be compatible by ignoring dnl a leading underscore sometimes (eg. FreeBSD). We therefore have dnl to work around this by checking for *no* leading underscore first. dnl Sigh. --SDM dnl AC_DEFUN(FPTOOLS_UNDERSCORE, [AC_CHECK_LIB(elf, nlist, LIBS="-lelf $LIBS")dnl AC_CACHE_CHECK([leading underscore in symbol names], fptools_cv_lead_uscore, dnl dnl Hack!: nlist() under Digital UNIX insist on there being an _, dnl but symbol table listings shows none. What is going on here?!? dnl dnl Another hack: cygwin doesn't come with nlist.h , so we hardwire dnl the underscoredness of that "platform" changequote(<<, >>)dnl << case $HostPlatform in alpha-dec-osf*) fptools_cv_lead_uscore='no';; *cygwin32) fptools_cv_lead_uscore='yes';; *mingw32) fptools_cv_lead_uscore='yes';; *) >> changequote([, ])dnl AC_TRY_RUN([#ifdef HAVE_NLIST_H #include changequote(<<, >>)dnl << struct nlist xYzzY1[] = {{"xYzzY1", 0},{0}}; struct nlist xYzzY2[] = {{"_xYzzY2", 0},{0}}; #endif main(argc, argv) int argc; char **argv; { #ifdef HAVE_NLIST_H if(nlist(argv[0], xYzzY1) == 0 && xYzzY1[0].n_value != 0) exit(1); if(nlist(argv[0], xYzzY2) == 0 && xYzzY2[0].n_value != 0) exit(0);>> changequote([, ])dnl #endif exit(1); }], fptools_cv_lead_uscore=yes, fptools_cv_lead_uscore=no, fptools_cv_lead_uscore=NO) ;; esac); LeadingUnderscore=`echo $fptools_cv_lead_uscore | sed 'y/yesno/YESNO/'` AC_SUBST(LeadingUnderscore) case $LeadingUnderscore in YES) AC_DEFINE(LEADING_UNDERSCORE);; esac ]) dnl dnl FPTOOLS_PROG_CHECK_VERSION(VERSIONSTR1, TEST, VERSIONSTR2, dnl ACTION-IF-TRUE [, ACTION-IF-FALSE]) dnl dnl compare versions field-wise (separator is '.') dnl TEST is one of {-lt,-le,-eq,-ge,-gt} dnl dnl quite shell-independant and SUSv2 compliant code dnl dnl NOTE: the loop could be unrolled within autoconf, but the dnl macro code would be a) longer and b) harder to debug... ;) dnl AC_DEFUN(FPTOOLS_PROG_CHECK_VERSION, [if ( IFS="."; a="[$1]"; b="[$3]"; while test -n "$a$b" do set -- [$]a; h1="[$]1"; shift 2>/dev/null; a="[$]*" set -- [$]b; h2="[$]1"; shift 2>/dev/null; b="[$]*" test -n "[$]h1" || h1=0; test -n "[$]h2" || h2=0 test [$]{h1} -eq [$]{h2} || break done test [$]{h1} [$2] [$]{h2} ) then ifelse([$4],,[:],[ $4]) ifelse([$5],,, [else $5]) fi ])])dnl dnl dnl Check for Happy and version. If we're building GHC, then we need dnl at least Happy version 1.9. If there's no installed Happy, we look dnl for a happy source tree and point the build system at that instead. dnl AC_DEFUN(FPTOOLS_HAPPY, [ if test -d $srcdir/happy; then SrcTreeHappyCmd=$hardtop/happy/src/happy-inplace fi AC_PATH_PROG(HappyCmd,happy,$SrcTreeHappyCmd) AC_CACHE_CHECK([for version of happy], fptools_cv_happy_version, changequote(, )dnl [if test x"$HappyCmd" = x"$SrcTreeHappyCmd"; then fptools_cv_happy_version=`grep '^ProjectVersion[ ]*=' $srcdir/happy/mk/version.mk | sed 's/.*\([0-9][0-9]*\.[0-9][0-9]*\).*/\1/g'`; elif test x"$HappyCmd" != x; then fptools_cv_happy_version="`$HappyCmd -v | grep 'Happy Version' | sed -e 's/Happy Version \([^ ]*\).*/\1/g'`" ; else fptools_cv_happy_version=""; fi; changequote([, ])dnl ]) if test -d $srcdir/ghc; then FPTOOLS_PROG_CHECK_VERSION([$fptools_cv_happy_version],-lt,[1.9], [AC_MSG_ERROR([Happy version 1.9 or later is required to compile GHC.])])dnl fi HappyVersion=$fptools_cv_happy_version; AC_SUBST(HappyVersion) ]) dnl dnl What's the best way of doing context diffs? dnl dnl (NB: NeXTStep thinks diff'ing a file against itself is "trouble") dnl AC_DEFUN(FPTOOLS_PROG_DIFF, [AC_CACHE_CHECK([for ok way to do context diffs], fptools_cv_context_diffs, [echo foo > conftest1 echo foo > conftest2 if diff -C 1 conftest1 conftest2 > /dev/null 2>&1 ; then fptools_cv_context_diffs='diff -C 1' else if diff -c1 conftest1 conftest2 > /dev/null 2>&1 ; then fptools_cv_context_diffs='diff -c1' else echo "Can't figure out how to do context diffs." echo "Neither \`diff -C 1' nor \`diff -c1' works." exit 1 fi fi rm -f conftest1 conftest2 ]) ContextDiffCmd=$fptools_cv_context_diffs AC_SUBST(ContextDiffCmd) ]) dnl dnl Finding the Right Yacc dnl AC_DEFUN(FPTOOLS_PROG_YACCY, [AC_PROG_YACC if test "$YACC" = "yacc"; then AC_CACHE_CHECK([if it is an OK yacc], ac_cv_prog_yacc, [AC_CHECK_PROG(WhatCmd, what, what, :) $WhatCmd $YACC > conftest.out if egrep 'y1\.c 1\..*SMI' conftest.out >/dev/null 2>&1; then echo "I don't trust your $YaccCmd; it looks like an old Sun yacc" if test -f /usr/lang/yacc; then echo "I'm going to use /usr/lang/yacc instead" ac_cv_prog_yacc=/usr/lang/yacc else echo "I'm assuming the worst...no parser generator at all" ac_cv_prog_yacc=: fi elif egrep 'y1\.c.*Revision: 4\.2\.6\.3.*DEC' conftest.out >/dev/null 2>&1; then echo "I don't trust your $YaccCmd; it looks like a lame DEC yacc" echo "I'm assuming the worst...no parser generator at all" ac_cv_prog_yacc=: else ac_cv_prog_yacc=$YACC fi rm -fr conftest* ]) else ac_cv_prog_yacc=$YACC fi YaccCmd=$ac_cv_prog_yacc AC_SUBST(YaccCmd) ]) dnl *** Checking for ar and its arguments + whether we need ranlib. dnl dnl ArCmd and RANLIB are AC_SUBST'ed dnl AC_DEFUN(FPTOOLS_PROG_AR_AND_RANLIB, [AC_PATH_PROG(ArCmd,ar) if test -z "$ArCmd"; then echo "You don't seem to have ar in your PATH...I have no idea how to make a library" exit 1; fi if $ArCmd clqs conftest.a >/dev/null 2>/dev/null; then ArCmd="$ArCmd clqs" NeedRanLib='' elif $ArCmd cqs conftest.a >/dev/null 2>/dev/null; then ArCmd="$ArCmd cqs" NeedRanLib='' elif $ArCmd clq conftest.a >/dev/null 2>/dev/null; then ArCmd="$ArCmd clq" NeedRanLib='YES' elif $ArCmd cq conftest.a >/dev/null 2>/dev/null; then ArCmd="$ArCmd cq" NeedRanLib='YES' elif $ArCmd cq conftest.a 2>&1 | grep 'no archive members specified' >/dev/null 2>/dev/null; then ArCmd="$ArCmd cq" NeedRanLib='YES' else echo "I can't figure out how to use your $ArCmd" exit 1 fi rm -rf conftest* test -n "$ArCmd" && test -n "$verbose" && echo " setting ArCmd to $ArCmd" AC_SUBST(ArCmd) if test -z "$NeedRanLib"; then RANLIB=':' test -n "$verbose" && echo " setting RANLIB to $RANLIB" AC_SUBST(RANLIB) else AC_PROG_RANLIB fi ]) dnl dnl AC_SHEBANG_PERL - can we she-bang perl? dnl AC_DEFUN(FPTOOLS_SHEBANG_PERL, [AC_CACHE_CHECK([if your perl works in shell scripts], fptools_cv_shebang_perl, [echo "#!$PerlCmd"' exit $1; ' > conftest chmod u+x conftest (SHELL=/bin/sh; export SHELL; ./conftest 69 > /dev/null) if test $? -ne 69; then fptools_cv_shebang_perl=yes else fptools_cv_shebang_perl=no fi rm -f conftest ])]) dnl dnl Extra testing of the result AC_PROG_CC, testing the gcc version no. dnl *Must* be called after AC_PROG_CC dnl AC_DEFUN(FPTOOLS_HAVE_GCC, [AC_CACHE_CHECK([whether you have an ok gcc], fptools_cv_have_gcc, [if test -z "$GCC"; then echo '' echo "You would be better off with gcc" echo "Perhaps it is already installed, but not in your PATH?" fptools_cv_have_gcc='no' else changequote(, )dnl cmd_string="`$CC -v 2>&1 | grep 'version ' | sed -e 's/.*version [^0-9]*\([0-9][0-9]*\)\.\([0-9][0-9]*\).*/expr 20 \\\< \1 \\\* 10 + \2/g' `" changequote([, ])dnl if test `eval $cmd_string 2>/dev/null` != "1"; then echo '' echo "I'm not sure if your version of gcc will work," echo "but it's worth a shot, eh?" fi fptools_cv_have_gcc='yes' fi ]) HaveGcc=`echo $fptools_cv_have_gcc | sed 'y/yesno/YESNO/'` AC_SUBST(HaveGcc) ]) dnl Small feature test for perl version. Assumes PerlCmd dnl contains path to perl binary dnl AC_DEFUN(FPTOOLS_CHECK_PERL_VERSION, [$PerlCmd -v >conftest.out 2>&1 if grep "version 5" conftest.out >/dev/null 2>&1; then : else if grep "v5.6" conftest.out >/dev/null 2>&1; then : else if grep "version 6" conftest.out >/dev/null 2>&1; then : else echo "Your version of perl probably won't work." fi fi fi rm -fr conftest* ]) dnl dnl FPTOOLS_GHC_VERSION(version) dnl FPTOOLS_GHC_VERSION(major, minor [, patchlevel]) dnl FPTOOLS_GHC_VERSION(version, major, minor, patchlevel) dnl dnl Test for version of installed ghc. Uses $GHC. dnl [original version pinched from c2hs] dnl AC_DEFUN(FPTOOLS_GHC_VERSION, [define([FPTOOLS_CV_GHC_VERSION], [fptools_cv_ghc_version])dnl AC_CACHE_CHECK([version of ghc], FPTOOLS_CV_GHC_VERSION, [dnl ${WithGhc-ghc} --version > conftestghc 2>&1 cat conftestghc >&AC_FD_CC dnl `Useless Use Of cat' award... changequote(<<, >>)dnl FPTOOLS_CV_GHC_VERSION=`cat conftestghc | sed -n -e 's/, patchlevel *\([0-9]\)/.\1/;s/.* version \([0-9][0-9.]*\).*/\1/p'` changequote([, ])dnl rm -fr conftest* if test "[$]FPTOOLS_CV_GHC_VERSION" = "" then FPTOOLS_CV_GHC_VERSION='unknown' fi]) changequote(<<, >>)dnl FPTOOLS_CV_GHC_VERSION<<_major>>=`echo <<$>>FPTOOLS_CV_GHC_VERSION | sed -e 's/^\([0-9]\).*/\1/'` FPTOOLS_CV_GHC_VERSION<<_minor>>=`echo <<$>>FPTOOLS_CV_GHC_VERSION | sed -e 's/^[0-9]\.\([0-9]*\).*/\1/'` FPTOOLS_CV_GHC_VERSION<<_pl>>=`echo <<$>>FPTOOLS_CV_GHC_VERSION | sed -n -e 's/^[0-9]\.[0-9]*\.\([0-9]*\)/\1/p'` changequote([, ])dnl if test "[$]FPTOOLS_CV_GHC_VERSION[_pl]" = "" then FPTOOLS_CV_GHC_VERSION[_all]="[$]FPTOOLS_CV_GHC_VERSION[_major].[$]FPTOOLS_CV_GHC_VERSION[_minor]" FPTOOLS_CV_GHC_VERSION[_pl]="0" else FPTOOLS_CV_GHC_VERSION[_all]="[$]FPTOOLS_CV_GHC_VERSION[_major].[$]FPTOOLS_CV_GHC_VERSION[_minor].[$]FPTOOLS_CV_GHC_VERSION[_pl]" fi ifelse($#, [1], [dnl [$1]="[$]FPTOOLS_CV_GHC_VERSION[_all]" ], $#, [2], [dnl [$1]="[$]FPTOOLS_CV_GHC_VERSION[_major]" [$2]="[$]FPTOOLS_CV_GHC_VERSION[_minor]" ], $#, [3], [dnl [$1]="[$]FPTOOLS_CV_GHC_VERSION[_major]" [$2]="[$]FPTOOLS_CV_GHC_VERSION[_minor]" [$3]="[$]FPTOOLS_CV_GHC_VERSION[_pl]" ], $#, [4], [dnl [$1]="[$]FPTOOLS_CV_GHC_VERSION[_all]" [$2]="[$]FPTOOLS_CV_GHC_VERSION[_major]" [$3]="[$]FPTOOLS_CV_GHC_VERSION[_minor]" [$4]="[$]FPTOOLS_CV_GHC_VERSION[_pl]" ], [AC_MSG_ERROR([wrong number of arguments to [$0]])])dnl undefine([FPTOOLS_CV_GHC_VERSION])dnl ])dnl dnl ** figure out the alignment restriction of a type dnl (required SIZEOF test but AC_CHECK_SIZEOF doesn't call PROVIDE dnl so we can't call REQUIRE) dnl FPTOOLS_CHECK_ALIGNMENT(TYPE) AC_DEFUN(FPTOOLS_CHECK_ALIGNMENT, [changequote(<<, >>)dnl dnl The name to #define. define(<>, translit(alignment_$1, [a-z *], [A-Z_P]))dnl dnl The cache variable name. define(<>, translit(ac_cv_alignment_$1, [ *], [_p]))dnl dnl The name of the corresponding size. define(<>, translit(ac_cv_sizeof_$1, [ *], [_p]))dnl changequote([, ])dnl AC_MSG_CHECKING(alignment of $1) AC_CACHE_VAL(AC_CV_NAME, [AC_TRY_RUN([ #include #if HAVE_STDDEF_H #include #endif #ifndef offsetof #define offsetof(ty,field) ((size_t)((char *)&((ty *)0)->field - (char *)(ty *)0)) #endif int main() { FILE *f=fopen("conftestval", "w"); if (!f) exit(1); fprintf(f, "%d", offsetof(struct { char c; $1 ty;},ty)); exit(0); }], AC_CV_NAME=`cat conftestval`, AC_CV_NAME=$AC_CV_SIZEOF_NAME, AC_CV_NAME=$AC_CV_SIZEOF_NAME)]) AC_MSG_RESULT($AC_CV_NAME) AC_DEFINE_UNQUOTED(AC_TYPE_NAME, $AC_CV_NAME) AC_PROVIDE($AC_TYPE_NAME) undefine([AC_TYPE_NAME])dnl undefine([AC_CV_NAME])dnl undefine([AC_CV_SIZEOF_NAME])dnl ]) dnl ** Map an arithmetic C type to a Haskell type. dnl Based on autconf's AC_CHECK_SIZEOF. dnl FPTOOLS_CHECK_HTYPE(TYPE [, DEFAULT_VALUE, [, VALUE-FOR-CROSS-COMPILATION]) AC_DEFUN(FPTOOLS_CHECK_HTYPE, [changequote(<<, >>)dnl dnl The name to #define. define(<>, translit(htype_$1, [a-z *], [A-Z_P]))dnl dnl The cache variable name. define(<>, translit(fptools_cv_htype_$1, [ *], [_p]))dnl changequote([, ])dnl AC_MSG_CHECKING(Haskell type for $1) AC_CACHE_VAL(AC_CV_NAME, [AC_TRY_RUN([#include #include #ifdef HAVE_SIGNAL_H #include #endif #ifdef HAVE_TIME_H #include #endif #ifdef HAVE_GL_GL_H #include #endif typedef $1 testing; main() { FILE *f=fopen("conftestval", "w"); if (!f) exit(1); if (((testing)((int)((testing)1.4))) == ((testing)1.4)) { fprintf(f, "%s%d\n", ((testing)(-1) < (testing)0) ? "Int" : "Word", sizeof(testing)*8); } else { fprintf(f,"%s\n", (sizeof(testing) > sizeof(double)) ? "LDouble" : (sizeof(testing) == sizeof(double)) ? "Double" : "Float"); } fclose(f); exit(0); }], AC_CV_NAME=`cat conftestval`, ifelse([$2], , AC_CV_NAME=NotReallyAType, AC_CV_NAME=$2), ifelse([$3], , AC_CV_NAME=NotReallyATypeCross, AC_CV_NAME=$3))]) dnl AC_MSG_RESULT($AC_CV_NAME) AC_DEFINE_UNQUOTED(AC_TYPE_NAME, $AC_CV_NAME) undefine([AC_TYPE_NAME])dnl undefine([AC_CV_NAME])dnl ]) dnl ** figure out whether C compiler supports 'long long's dnl (Closely based on Andreas Zeller's macro for testing dnl for this under C++) dnl dnl If the C compiler supports `long long' types, dnl define `HAVE_LONG_LONG'. dnl AC_DEFUN(FPTOOLS_C_LONG_LONG, [ AC_REQUIRE([AC_PROG_CC]) AC_MSG_CHECKING(whether ${CC} supports long long types) AC_CACHE_VAL(fptools_cv_have_long_long, [ AC_LANG_SAVE AC_LANG_C AC_TRY_COMPILE(,[long long a;], fptools_cv_have_long_long=yes, fptools_cv_have_long_long=no) AC_LANG_RESTORE ]) AC_MSG_RESULT($fptools_cv_have_long_long) if test "$fptools_cv_have_long_long" = yes; then AC_DEFINE(HAVE_LONG_LONG) fi ]) dnl ** Obtain the value of a C constant. dnl The value will be `(-1)' if the constant is undefined. dnl dnl This is set up so that the argument can be a shell variable. dnl AC_DEFUN(FPTOOLS_CHECK_CCONST, [ eval "def_name=CCONST_$1" eval "cv_name=ac_cv_cconst_$1" AC_MSG_CHECKING(value of $1) AC_CACHE_VAL($cv_name, [AC_TRY_RUN([#include #include main() { FILE *f=fopen("conftestval", "w"); if (!f) exit(1); fprintf(f, "%d\n", $1); exit(0); }], eval "$cv_name=`cat conftestval`", eval "$cv_name=-1", ifelse([$2], , , eval "$cv_name=$2"))])dnl eval "fptools_check_cconst_result=`echo '$'{$cv_name}`" AC_MSG_RESULT($fptools_check_cconst_result) AC_DEFINE_UNQUOTED($def_name, $fptools_check_cconst_result) unset fptools_check_cconst_result ]) dnl ** Invoke AC_CHECK_CCONST on each argument (which have to separate with dnl spaces) dnl AC_DEFUN(FPTOOLS_CHECK_CCONSTS, [for ac_const_name in $1 do FPTOOLS_CHECK_CCONST($ac_const_name)dnl done ]) dnl *** Can we open files in binary mode? *** dnl AC_DEFUN(FPTOOLS_O_BINARY, [ AC_REQUIRE([AC_PROG_CC]) AC_MSG_CHECKING(whether we can open files in binary mode) AC_CACHE_VAL(fptools_cv_have_o_binary, [ AC_LANG_SAVE AC_LANG_C AC_TRY_COMPILE(, [#ifdef HAVE_FCNTL_H #include #endif int x = O_BINARY;], fptools_cv_have_o_binary=yes, fptools_cv_have_o_binary=no) AC_LANG_RESTORE ]) AC_MSG_RESULT($fptools_cv_have_o_binary) if test "$fptools_cv_have_o_binary" = yes; then AC_DEFINE(HAVE_O_BINARY) fi ]) dnl *** Which one comes first, .text or .data? *** dnl AC_DEFUN(FPTOOLS_CODE_BEFORE_DATA, [AC_CACHE_CHECK([if code section appears before data], fptools_cv_code_bef_data, [AC_TRY_RUN([ int f() { return 1; } int i; int main() { return ((char*)&f > (char*)&i); } ], fptools_cv_code_bef_data=yes, fptools_cv_code_bef_data=no,false)]) if test "$fptools_cv_code_bef_data" = yes; then AC_DEFINE(CODE_BEFORE_DATA) fi ]) dnl *** Helper function ** dnl AC_DEFUN(FPTOOLS_IN_SCOPE,AC_TRY_LINK([extern char* $1;],[return (int)&$2], $3=yes, $3=no)) dnl *** What's the end-of-text-section marker called? *** dnl AC_DEFUN(FPTOOLS_END_TEXT_SECTION, [AC_MSG_CHECKING([for end of text section marker]) not_done=1 for i in data_start _data_start etext _etext __etext; do FPTOOLS_IN_SCOPE($i,$i,fptools_end_of_text) if test "$fptools_end_of_text" = yes; then AC_CACHE_VAL([fptools_cv_end_of_text_decl], AC_DEFINE_UNQUOTED(TEXT_SECTION_END_MARKER_DECL, $i)) AC_CACHE_VAL([fptools_cv_end_of_text], AC_DEFINE_UNQUOTED(TEXT_SECTION_END_MARKER, $i)) not_done=0 break fi done if test "$not_done" = 1; then FPTOOLS_IN_SCOPE(etext asm("etext"),etext,fptools_end_of_text); if test "$fptools_end_of_text" = yes; then AC_CACHE_VAL([fptools_cv_end_of_text], AC_DEFINE_UNQUOTED(TEXT_SECTION_END_MARKER, etext)) AC_CACHE_VAL([fptools_cv_end_of_text_decl], AC_DEFINE_UNQUOTED(TEXT_SECTION_END_MARKER_DECL, etext asm("etext"))) else AC_DEFINE_UNQUOTED(TEXT_SECTION_END_MARKER_DECL, dunno_what_it_is) AC_DEFINE_UNQUOTED(TEXT_SECTION_END_MARKER, dunno_what_it_is) fi fi AC_MSG_RESULT([$]fptools_cv_end_of_text) ]) dnl *** What's the end-of-data-section marker called? *** dnl AC_DEFUN(FPTOOLS_END_DATA_SECTION, [AC_MSG_CHECKING([for end of data section marker]) not_done=1 for i in end _end __end; do FPTOOLS_IN_SCOPE($i,$i,fptools_end_of_data) if test "$fptools_end_of_data" = yes; then AC_CACHE_VAL([fptools_cv_end_of_data_decl], [AC_DEFINE_UNQUOTED(DATA_SECTION_END_MARKER_DECL, $i)]) AC_CACHE_VAL([fptools_cv_end_of_data], [AC_DEFINE_UNQUOTED(DATA_SECTION_END_MARKER, $i)]) not_done=0 break fi done if test "$not_done" = 1; then FPTOOLS_IN_SCOPE(end asm("end"),end,fptools_end_of_data); if test "$fptools_end_of_data" = yes; then AC_CACHE_VAL([fptools_cv_end_of_data_decl], [AC_DEFINE_UNQUOTED(DATA_SECTION_END_MARKER_DECL, end asm("end"))]) AC_CACHE_VAL([fptools_cv_end_of_data], [AC_DEFINE_UNQUOTED(DATA_SECTION_END_MARKER, end)]) else AC_CACHE_VAL([fptools_cv_end_of_data_decl], [AC_DEFINE_UNQUOTED(DATA_SECTION_END_MARKER_DECL, dunno_what_it_is)]) AC_CACHE_VAL([fptools_cv_end_of_data], [AC_DEFINE_UNQUOTED(DATA_SECTION_END_MARKER, dunno_what_it_is)]) fi fi AC_MSG_RESULT([$]fptools_cv_end_of_data) ]) dnl Based on AC_TRY_LINK - run iftrue if links cleanly with no warning dnl FPTOOLS_TRY_LINK_NOWARN(flags,main?,iftrue,iffalse) AC_DEFUN(FPTOOLS_TRY_LINK_NOWARN, [ ac_save_LIBS="$LIBS" LIBS=[$1]; cat > conftest.$ac_ext < conftest.sgml << EOF
Test Test
Test
Test Test Test.
EOF fptools_cv_sgml_catalog=no for fptools_catalog in $4; do ac_try="$2 -t rtf -d $3#print -c $fptools_catalog conftest.sgml" if AC_TRY_EVAL(ac_try); then fptools_cv_sgml_catalog=[$]fptools_catalog break fi done ]) rm -rf conftest* if test $fptools_cv_sgml_catalog != "no"; then $1=$fptools_cv_sgml_catalog fi ]) dnl ###################################################################### dnl FPTOOLS_SEARCH_LIBS(INCLUDES, FUNCTION, SEARCH-LIBS [, ACTION-IF-FOUND dnl [, ACTION-IF-NOT-FOUND [, OTHER-LIBRARIES]]]) dnl Search for a library defining FUNC, if it's not already available. dnl This is almost the same as AC_SEARCH_LIBS, but the INCLUDES can be dnl specified. dnl ###################################################################### AC_DEFUN(FPTOOLS_SEARCH_LIBS, [AC_PREREQ([2.13]) AC_CACHE_CHECK([for library containing $2], [ac_cv_search_$2], [ac_func_search_save_LIBS="$LIBS" ac_cv_search_$2="no" AC_TRY_LINK([$1], [$2()], [ac_cv_search_$2="none required"]) test "$ac_cv_search_$2" = "no" && for i in $3; do LIBS="-l$i $6 $ac_func_search_save_LIBS" AC_TRY_LINK([$1], [$2()], [ac_cv_search_$2="-l$i" break]) done LIBS="$ac_func_search_save_LIBS"]) if test "$ac_cv_search_$2" != "no"; then test "$ac_cv_search_$2" = "none required" || LIBS="$ac_cv_search_$2 $LIBS" $4 else : $5 fi]) dnl ####################### -*- Mode: M4 -*- ########################### dnl Copyright (C) 98, 1999 Matthew D. Langston dnl dnl This file is free software; you can redistribute it and/or modify it dnl under the terms of the GNU General Public License as published by dnl the Free Software Foundation; either version 2 of the License, or dnl (at your option) any later version. dnl dnl This file is distributed in the hope that it will be useful, but dnl WITHOUT ANY WARRANTY; without even the implied warranty of dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU dnl General Public License for more details. dnl dnl You should have received a copy of the GNU General Public License dnl along with this file; if not, write to: dnl dnl Free Software Foundation, Inc. dnl Suite 330 dnl 59 Temple Place dnl Boston, MA 02111-1307, USA. dnl #################################################################### dnl @synopsis FPTOOLS_CHECK_LIBM dnl dnl Search for math library (typically -lm). dnl dnl The variable LIBM (which is not an output variable by default) is dnl set to a value which is suitable for use in a Makefile (for example, dnl in make's LOADLIBES macro) provided you AC_SUBST it first. dnl dnl @version 0.01 $Id: aclocal.m4,v 1.71 2001/04/20 10:56:12 michaelw Exp $ dnl @author Matthew D. Langston # FPTOOLS_CHECK_LIBM - check for math library AC_DEFUN(FPTOOLS_CHECK_LIBM, [AC_REQUIRE([AC_CANONICAL_HOST])dnl LIBM= case "$host" in *-*-beos* | *-*-macosx*) # These system don't have libm ;; *-ncr-sysv4.3*) AC_CHECK_LIB(mw, _mwvalidcheckl, LIBM="-lmw") AC_CHECK_LIB(m, main, LIBM="$LIBM -lm") ;; *) AC_CHECK_LIB(m, main, LIBM="-lm") ;; esac ]) dnl ###################################################################### dnl NOTE: Because of portability issues between different autoconf dnl versions the AC_HELP_STRING macro has been removed from FPTOOLS_HAVE_OPENGL. dnl Furthermore, caching has been completely rewritten. dnl ###################################################################### dnl ########################### -*- Mode: M4 -*- ####################### dnl Copyright (C) 98, 1999 Matthew D. Langston dnl dnl This file is free software; you can redistribute it and/or modify it dnl under the terms of the GNU General Public License as published by dnl the Free Software Foundation; either version 2 of the License, or dnl (at your option) any later version. dnl dnl This file is distributed in the hope that it will be useful, but dnl WITHOUT ANY WARRANTY; without even the implied warranty of dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU dnl General Public License for more details. dnl dnl You should have received a copy of the GNU General Public License dnl along with this file; if not, write to: dnl dnl Free Software Foundation, Inc. dnl Suite 330 dnl 59 Temple Place dnl Boston, MA 02111-1307, USA. dnl #################################################################### dnl @synopsis FPTOOLS_HAVE_OPENGL dnl dnl Search for OpenGL. We search first for Mesa (a GPL'ed version of dnl OpenGL) before a vendor's version of OpenGL, unless we were dnl specifically asked not to with `--with-Mesa=no' or `--without-Mesa'. dnl dnl The four "standard" OpenGL libraries are searched for: "-lGL", dnl "-lGLU", "-lGLX" (or "-lMesaGL", "-lMesaGLU" as the case may be) and dnl "-lglut". dnl dnl All of the libraries that are found (since "-lglut" or "-lGLX" might dnl be missing) are added to the shell output variable "GL_LIBS", along dnl with any other libraries that are necessary to successfully link an dnl OpenGL application (e.g. the X11 libraries). Care has been taken to dnl make sure that all of the libraries in "GL_LIBS" are listed in the dnl proper order. dnl dnl Additionally, the shell output variable "GL_CFLAGS" is set to any dnl flags (e.g. "-I" flags) that are necessary to successfully compile dnl an OpenGL application. dnl dnl The following shell variable (which are not output variables) are dnl also set to either "yes" or "no" (depending on which libraries were dnl found) to help you determine exactly what was found. dnl dnl have_GL dnl have_GLU dnl have_GLX dnl have_glut dnl dnl A complete little toy "Automake `make distcheck'" package of how to dnl use this macro is available at: dnl dnl ftp://ftp.slac.stanford.edu/users/langston/autoconf/ac_opengl-0.01.tar.gz dnl dnl Please note that as the ac_opengl macro and the toy example evolves, dnl the version number increases, so you may have to adjust the above dnl URL accordingly. dnl dnl @version 0.01 $Id: aclocal.m4,v 1.71 2001/04/20 10:56:12 michaelw Exp $ dnl @author Matthew D. Langston AC_DEFUN(FPTOOLS_HAVE_OPENGL, [ AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([AC_PATH_X]) AC_REQUIRE([AC_PATH_XTRA]) AC_REQUIRE([FPTOOLS_CHECK_LIBM]) dnl Check for Mesa first, unless we were asked not to. dnl AC_HELP_STRING([--with-Mesa], dnl [Prefer the Mesa library over a vendors native OpenGL library (default=yes)], dnl with_Mesa_help_string) dnl AC_ARG_ENABLE(Mesa, $with_Mesa_help_string, use_Mesa=$enableval, use_Mesa=yes) AC_ARG_ENABLE(Mesa, [ --with-Mesa Prefer the Mesa library over a vendors native OpenGL library (default=yes)], use_Mesa=$enableval, use_Mesa=yes) if test x"$use_Mesa" = xyes; then GL_search_list="MesaGL GL opengl32" GLU_search_list="MesaGLU GLU glu32" GLX_search_list="MesaGLX GLX" else GL_search_list="GL opengl32 MesaGL" GLU_search_list="GLU glu32 MesaGLU" GLX_search_list="GLX MesaGLX" fi AC_LANG_SAVE AC_LANG_C dnl If we are running under X11 then add in the appropriate libraries. if ! test x"$no_x" = xyes; then dnl Add everything we need to compile and link X programs to GL_CFLAGS dnl and GL_X_LIBS. GL_CFLAGS="$X_CFLAGS" GL_X_LIBS="$X_PRE_LIBS $X_LIBS -lX11 -lXext -lXmu -lXt -lXi $X_EXTRA_LIBS $LIBM" fi GL_save_CPPFLAGS="$CPPFLAGS" CPPFLAGS="$GL_CFLAGS" GL_save_LIBS="$LIBS" LIBS="$GL_X_LIBS" FPTOOLS_SEARCH_LIBS([#include ], glEnd, $GL_search_list, have_GL=yes, have_GL=no) FPTOOLS_SEARCH_LIBS([#include ], gluNewQuadric, $GLU_search_list, have_GLU=yes, have_GLU=no) FPTOOLS_SEARCH_LIBS([#include ], glXChooseVisual, $GLX_search_list, have_GLX=yes, have_GLX=no) FPTOOLS_SEARCH_LIBS([#include ], glutMainLoop, glut glut32, have_glut=yes, have_glut=no) if test -n "$LIBS"; then GL_LIBS="$LIBS" else GL_LIBS= GL_CFLAGS= fi AC_CACHE_CHECK([OpenGL flags], mdl_cv_gl_cflags, [mdl_cv_gl_cflags="$GL_CFLAGS"]) GL_CFLAGS="$mdl_cv_gl_cflags" AC_SUBST(GL_CFLAGS) AC_CACHE_CHECK([OpenGL libs], mdl_cv_gl_libs, [mdl_cv_gl_libs="$GL_LIBS"]) GL_LIBS="$mdl_cv_gl_libs" AC_SUBST(GL_LIBS) dnl Reset GL_X_LIBS regardless, since it was just a temporary variable dnl and we don't want to be global namespace polluters. GL_X_LIBS= LIBS="$GL_save_LIBS" CPPFLAGS="$GL_save_CPPFLAGS" AC_LANG_RESTORE ]) # LocalWords: fi