[project @ 2000-05-02 07:50:41 by chak]
[ghc-hetmet.git] / aclocal.m4
index 7a8c368..7d4e52b 100644 (file)
@@ -1,4 +1,4 @@
-dnl $Id: aclocal.m4,v 1.32 1998/11/21 14:35:00 sof 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
@@ -7,6 +7,28 @@ 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 <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 
@@ -23,7 +45,7 @@ AC_DEFUN(FPTOOLS_TYPE_TIMEZONE,
 # 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)
@@ -71,10 +93,14 @@ 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
@@ -108,7 +134,12 @@ esac
 ])
 
 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)
@@ -117,17 +148,23 @@ AC_CACHE_CHECK([for version of happy], fptools_cv_happy_version,
    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)
 ])
 
@@ -277,36 +314,6 @@ HaveGcc=`echo $fptools_cv_have_gcc | sed 'y/yesno/YESNO/'`
 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
@@ -454,55 +461,56 @@ AC_DEFUN(FPTOOLS_IN_SCOPE,AC_TRY_LINK([extern char* $1;],[return (int)&$2], $3=y
 dnl *** What's the end-of-text-section marker called? ***
 dnl
 AC_DEFUN(FPTOOLS_END_TEXT_SECTION,
-[AC_CACHE_CHECK([for end of text section marker], fptools_cv_end_of_text,
-[
+[AC_MSG_CHECKING([for end of text section marker])
 not_done=1
-for i in etext _etext __etext; do
-  FPTOOLS_IN_SCOPE($i,$i,fptools_cv_end_of_text)
-  if test "$fptools_cv_end_of_text" = yes; then
-   AC_DEFINE_UNQUOTED(TEXT_SECTION_END_MARKER_DECL, $i)
-   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 "$fptools_cv_end_of_text" = yes; then
-  AC_DEFINE(TEXT_SECTION_END_MARKER_DECL, etext asm("etext"))
-  AC_DEFINE(TEXT_SECTION_END_MARKER, etext)
+FPTOOLS_IN_SCOPE(etext asm("etext"),etext,fptools_end_of_text);
+if test "$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_DECL, $i)
-   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 "$fptools_cv_end_of_data" = yes; then
-  AC_DEFINE(DATA_SECTION_END_MARKER_DECL, end asm("end"))
-  AC_DEFINE(DATA_SECTION_END_MARKER, end)
+FPTOOLS_IN_SCOPE(end asm("end"),end,fptools_end_of_data);
+if test "$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_DECL, dunno_what_it_is)
-  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)
+])