X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=aclocal.m4;h=40c1f2663df98d14ad9da42f523c2f80c7fbe0bc;hb=fab146594bcdfb504411c927db7595e07c180e49;hp=c79cef4c414e134ceb112c3030499ad43c7fbc46;hpb=c820a01d7d25013deaac45331e234bacf775a0ea;p=ghc-hetmet.git

diff --git a/aclocal.m4 b/aclocal.m4
index c79cef4..40c1f26 100644
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -1,4 +1,4 @@
-dnl $Id: aclocal.m4,v 1.42 1999/06/07 10:12:52 simonmar Exp $
+dnl $Id: aclocal.m4,v 1.47 2000/05/09 10:43:45 rrt Exp $
 dnl 
 dnl Extra autoconf macros for the Glasgow fptools
 dnl
@@ -134,26 +134,37 @@ 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,,$PATH ${hardtop}/happy/src)
+[AC_PATH_PROG(HappyCmd,happy)
 AC_CACHE_CHECK([for version of happy], fptools_cv_happy_version,
 [if test x"$HappyCmd" != x; then
    fptools_cv_happy_version="`$HappyCmd -v |
 changequote(, )dnl
 			  grep 'Happy Version' | sed -e 's/Happy Version \([^ ]*\).*/\1/g'`" ;
-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)
 ])
 
@@ -303,61 +314,18 @@ 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
-	$CC -v -E conftest.c >/dev/null 2>conftest.out
-	# \x5c = backslash
-	echo 'tr/\x5c/\//; /(\S+\/)cpp/ && print "[$]{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="$GNUCPP -traditional"
-AC_SUBST(GNUCPP)
-AC_SUBST(RAWCPP)
-])
-
 dnl Small feature test for perl version. Assumes PerlCmd
 dnl contains path to perl binary
 dnl
 AC_DEFUN(FPTOOLS_CHECK_PERL_VERSION,
 [$PerlCmd -v >conftest.out 2>&1
-if grep "version 4" conftest.out >/dev/null 2>&1; then
-   if grep "Patch level: 35" conftest.out >/dev/null 2>&1; then
-      echo "
-************************************************************************
-Uh-oh...looks like you have Perl 4.035.
-
-Perl version 4.035 has a bug to do with recursion that will bite if
-you run the lit2texi script, when making Info files from
-literate files of various sorts.  Either use perl5, the last version of perl4 
-(4.036), or an older version (e.g., perl 4.019). Failing that, don't create
-any Info files :-)
-************************************************************************
-"
-   fi
+if grep "version 5" conftest.out >/dev/null 2>&1; then
+   :
 else
-   if grep "version 5" conftest.out >/dev/null 2>&1; then
+   if grep "version 6" conftest.out >/dev/null 2>&1; then
       :
    else
-     echo "I'm not sure if your version of perl will work,"
-     echo "but it's worth a shot, eh?"
+     echo "Your version of perl probably won't work."
    fi
 fi
 rm -fr conftest*