-dnl $Id: aclocal.m4,v 1.30 1998/10/07 12:41:42 simonm Exp $
+dnl $Id: aclocal.m4,v 1.46 1999/12/21 13:00:54 simonmar Exp $
dnl
dnl Extra autoconf macros for the Glasgow fptools
dnl
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 <sys/time.h>
+# include <time.h>
+#else
+# if HAVE_SYS_TIME_H
+# include <sys/time.h>
+# else
+# include <time.h>
+# 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
# endif
#endif
-extern time_t timezone;
+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)
fi
])
+
dnl ** check for leading underscores in symbol names
dnl
dnl Test for determining whether symbol names have a leading
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 $HostPlatform in
alpha-dec-osf*) fptools_cv_lead_uscore='no';;
-*cygwin32) fptools_cv_lead_uscore='yes';;
+*cygwin32) fptools_cv_lead_uscore='yes';;
+*mingw32) fptools_cv_lead_uscore='yes';;
*) >>
changequote([, ])dnl
AC_TRY_RUN([#ifdef HAVE_NLIST_H
])
dnl
-dnl Check for Happy and version.
+dnl Check for Happy and version. If we're building GHC, then we need
+dnl at least Happy version 1.6. If there's no installed Happy, we look
+dnl for a happy source tree and point the build system at that instead.
+dnl
+dnl ToDo: when we reset HappyCmd to the source tree, autoconf doesn't
+dnl seems to insert it in the cache file. sigh.
dnl
AC_DEFUN(FPTOOLS_HAPPY,
[AC_PATH_PROG(HappyCmd,happy)
fptools_cv_happy_version="`$HappyCmd -v |
changequote(, )dnl
grep 'Happy Version' | sed -e 's/Happy Version \([^ ]*\).*/\1/g'`" ;
-changequote([, ])dnl
+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;
-if expr "$fptools_cv_happy_version" "<" 1.4 > /dev/null 2>&1; then
- echo
- echo "Happy version 1.4 or later is required to compile GHC."
- exit 1;
+changequote([, ])dnl
+if expr "$fptools_cv_happy_version" "<" 1.6 > /dev/null 2>&1; then
+ if test -d $srcdir/ghc; then
+ echo
+ echo "Happy version 1.6 or later is required to compile GHC."
+ exit 1;
+ fi
fi;
])
-HappyVersion=$ac_cv_happy_version;
+HappyVersion=$fptools_cv_happy_version;
AC_SUBST(HappyVersion)
])
AC_SUBST(HaveGcc)
])
-dnl
-dnl FPTOOLS_PROG_GNUCPP gathers the path to the cpp that the
-dnl gcc driver calls upon.
-dnl
-dnl Substitutes: GNUCPP and RAWCPP (latter is 'GNUCPP -traditional')
-dnl
-AC_DEFUN(FPTOOLS_PROG_GNUCPP,
-[AC_CACHE_CHECK([how to invoke GNU cpp directly], fptools_cv_gnu_cpp,
-[if test "$HaveGcc" = "YES"; then
- echo > conftest.c
- gcc -v -E conftest.c >/dev/null 2>conftest.out
- # \x5c = backslash
- echo 'tr/\x5c/\//; /(\S+\/)cpp/ && print "[$]{1}cpp -iprefix [$]1";' > conftest.pl
- fptools_cv_gnu_cpp="`eval $PerlCmd -n conftest.pl conftest.out`"
- rm -fr conftest*
- else
- # We need to be able to invoke CPP directly, preferably
- # with input from stdin (mkdependHS and hscpp depend on
- # this at the moment).
- # Take a guess at what to use, this probably won't work.
- echo Warning: GNU cpp not found, using $CPP
- fptools_cv_gnu_cpp = $CPP
- fi
-])
-GNUCPP=$fptools_cv_gnu_cpp
-RAWCPP="$GNUCPP -traditional"
-AC_SUBST(GNUCPP)
-AC_SUBST(RAWCPP)
-])
-
dnl Small feature test for perl version. Assumes PerlCmd
dnl contains path to perl binary
dnl
int main() { return ((char*)&f > (char*)&i); }
],
-fptools_cv_code_bef_data=yes, fptools_cv_code_bef_data=no)])
+fptools_cv_code_bef_data=yes, fptools_cv_code_bef_data=no,false)])
if test "$fptools_cv_code_bef_data" = yes; then
AC_DEFINE(CODE_BEFORE_DATA)
fi
dnl *** What's the end-of-text-section marker called? ***
dnl
AC_DEFUN(FPTOOLS_END_TEXT_SECTION,
-[AC_CACHE_CHECK([for end of text section marker], fptools_cv_end_of_text,
-[
+[AC_MSG_CHECKING([for end of text section marker])
not_done=1
-for i in etext _etext __etext; do
- FPTOOLS_IN_SCOPE($i,$i,fptools_cv_end_of_text)
- if test "$fptools_cv_end_of_text" = yes; then
- AC_DEFINE_UNQUOTED(TEXT_SECTION_END_MARKER, $i)
+for i in data_start _data_start etext _etext __etext; do
+ FPTOOLS_IN_SCOPE($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_cv_end_of_text);
-if test "$fptools_cv_end_of_text" = yes; then
- AC_DEFINE(TEXT_SECTION_END_MARKER, etext asm("etext"))
+FPTOOLS_IN_SCOPE(etext asm("etext"),etext,fptools_end_of_text);
+if test "$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(TEXT_SECTION_END_MARKER, dunno_what_it_is)
+ 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([$]fptools_cv_end_of_text)
+])
dnl *** What's the end-of-data-section marker called? ***
dnl
AC_DEFUN(FPTOOLS_END_DATA_SECTION,
-[AC_CACHE_CHECK([for end of data section marker], fptools_cv_end_of_data,
-[
+[AC_MSG_CHECKING([for end of data section marker])
not_done=1
for i in end _end __end; do
- FPTOOLS_IN_SCOPE($i,$i,fptools_cv_end_of_data)
- if test "$fptools_cv_end_of_data" = yes; then
- AC_DEFINE_UNQUOTED(DATA_SECTION_END_MARKER, $i)
+ FPTOOLS_IN_SCOPE($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_cv_end_of_data);
-if test "$fptools_cv_end_of_data" = yes; then
- AC_DEFINE(DATA_SECTION_END_MARKER, end asm("end"))
+FPTOOLS_IN_SCOPE(end asm("end"),end,fptools_end_of_data);
+if test "$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_DEFINE(DATA_SECTION_END_MARKER, dunno_what_it_is)
+ 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 <<EOF
+dnl This sometimes fails to find confdefs.h, for some reason.
+dnl [#]line __oline__ "[$]0"
+[#]line __oline__ "configure"
+#include "confdefs.h"
+[$2]
+int t() { return 0; }
+EOF
+if AC_TRY_EVAL(ac_link); then
+ ifelse([$3], , :, [
+ LIBS="$ac_save_LIBS"
+ rm -rf conftest*
+ $3])
+ ifelse([$4], , , [else
+ LIBS="$ac_save_LIBS"
+ rm -rf conftest*
+ $4
+])dnl
+fi
+rm -f conftest*
+]
+)
+
+dnl Loosely based on AC_CHECK_LIB in acgeneral.m4 in autoconf distribution
+
+dnl FPTOOLS_CHECK_FLAG_NOWARN(NAME, FLAG, CODE, iftrue, iffalse)
+
+AC_DEFUN(FPTOOLS_CHECK_FLAG_NOWARN,
+[AC_MSG_CHECKING([for $1])
+ AC_CACHE_VAL(ac_cv_flag_$1,
+ [FPTOOLS_TRY_LINK_NOWARN("$2", [main() { $3; exit(0); } ],
+ eval "ac_cv_flag_$1=yes",
+ eval "ac_cv_flag_$1=no"
+ )]
+ )
+if eval "test \"`echo '$ac_cv_flag_'$1`\" = yes"; then
+ AC_MSG_RESULT(yes)
+ LIBS="$2 $LIBS"
+ $4
+else
+ AC_MSG_RESULT(no)
+ $5
+fi
+])
+
+dnl FPTOOLS_CHECK_LIB_NOWARN(LIBRARY, FUNCTION)
+
+AC_DEFUN(FPTOOLS_CHECK_LIB_NOWARN,
+[FPTOOLS_CHECK_FLAG_NOWARN([function_$2],[],[extern char $2(); $2();],
+[changequote(, )dnl
+ ac_tr_lib=HAVE_LIB`echo $1 | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
+ changequote([, ])dnl
+ AC_DEFINE_UNQUOTED($ac_tr_lib)
+],
+[FPTOOLS_CHECK_FLAG_NOWARN([library_$1],[-l$1],[extern char $2(); $2();],
+[changequote(, )dnl
+ ac_tr_lib=HAVE_LIB`echo $1 | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
+ changequote([, ])dnl
+ AC_DEFINE_UNQUOTED($ac_tr_lib)
+],
+[]
+)])]
+)
+
+dnl check for prototypes
+dnl
+AC_DEFUN(AC_C_PROTOTYPES,
+[AC_CACHE_CHECK([prototypes], ac_cv_prototypes,
+[AC_TRY_COMPILE([
+void foo(int);
+void foo(i)
+int i; {
+return;
+}
+],
+[int i;],
+ac_cv_prototypes=yes,
+ac_cv_prototypes=no)])
+if test "$ac_cv_prototypes" = yes; then
+AC_DEFINE(HAVE_PROTOTYPES)
+fi
+])
+
+
+# LocalWords: fi
projects / ghc-hetmet.git / blobdiff