[project @ 2001-01-08 12:58:45 by chak]

[ghc-hetmet.git] / aclocal.m4

diff --git a/aclocal.m4 b/aclocal.m4
index d8ff450..0f59610 100644 (file)
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -1,4 +1,4 @@
-dnl $Id: aclocal.m4,v 1.60 2000/11/19 18:32:56 simonmar Exp $
+dnl $Id: aclocal.m4,v 1.61 2001/01/08 12:58:45 chak Exp $
 dnl 
 dnl Extra autoconf macros for the Glasgow fptools
 dnl
@@ -526,6 +526,46 @@ AC_DEFINE(HAVE_LONG_LONG)
 fi
 ])
 
+dnl ** Obtain the value of a C constant.
+dnl    The value will be `0' 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 <stdio.h>
+#include <errno.h>
+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=0",
+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,
@@ -820,7 +860,7 @@ 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 1.60 2000/11/19 18:32:56 simonmar Exp $
+dnl @version 0.01 $Id: aclocal.m4,v 1.61 2001/01/08 12:58:45 chak Exp $
 dnl @author Matthew D. Langston <langston@SLAC.Stanford.EDU>
 
 # FPTOOLS_CHECK_LIBM - check for math library
@@ -908,7 +948,7 @@ 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 1.60 2000/11/19 18:32:56 simonmar Exp $
+dnl @version 0.01 $Id: aclocal.m4,v 1.61 2001/01/08 12:58:45 chak Exp $
 dnl @author Matthew D. Langston <langston@SLAC.Stanford.EDU>
 
 AC_DEFUN(FPTOOLS_HAVE_OPENGL,