dnl $Id: aclocal.m4,v 1.50 2000/06/15 20:22:53 panne 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 ** 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 $LeadingUnderscore in YES) AC_DEFINE(LEADING_UNDERSCORE);; esac ]) dnl dnl Check for Happy and version. If we're building GHC, then we need dnl at least Happy version 1.6. If there's no installed Happy, we look dnl for a happy source tree and point the build system at that instead. dnl dnl ToDo: when we reset HappyCmd to the source tree, autoconf doesn't dnl seems to insert it in the cache file. sigh. dnl AC_DEFUN(FPTOOLS_HAPPY, [AC_PATH_PROG(HappyCmd,happy) AC_CACHE_CHECK([for version of happy], fptools_cv_happy_version, [if test x"$HappyCmd" != x; then fptools_cv_happy_version="`$HappyCmd -v | changequote(, )dnl grep 'Happy Version' | sed -e 's/Happy Version \([^ ]*\).*/\1/g'`" ; elif test -d $srcdir/happy; then HappyCmd=$hardtop/happy/src/happy-inplace; fptools_cv_happy_version=`grep '^ProjectVersion[ ]*=' $srcdir/happy/mk/version.mk | sed 's/.*\([0-9][0-9]*\.[0-9][0-9]*\).*/\1/g'`; echo -n "using happy from the source tree... "; else fptools_cv_happy_version=""; fi; changequote([, ])dnl if expr "$fptools_cv_happy_version" "<" 1.6 > /dev/null 2>&1; then if test -d $srcdir/ghc; then echo echo "Happy version 1.6 or later is required to compile GHC." exit 1; fi fi; ]) HappyVersion=$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 "version 6" conftest.out >/dev/null 2>&1; then : else echo "Your version of perl probably won't work." fi fi rm -fr conftest* ]) 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\n", 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 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 "$fptools_cv_have_long_long" = yes; then AC_DEFINE(HAVE_LONG_LONG) fi ]) dnl *** Can we open files in binary mode? *** dnl AC_DEFUN(FPTOOLS_O_BINARY, [ AC_REQUIRE([AC_PROG_CC]) AC_MSG_CHECKING(whether we can open files in binary mode) AC_CACHE_VAL(fptools_cv_have_o_binary, [ AC_LANG_SAVE AC_LANG_C AC_TRY_COMPILE(, [#ifdef HAVE_FCNTL_H #include #endif int x = O_BINARY;], fptools_cv_have_o_binary=yes, fptools_cv_have_o_binary=no) AC_LANG_RESTORE ]) AC_MSG_RESULT($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 ]) # LocalWords: fi