-dnl $Id: aclocal.m4,v 1.70 2001/04/17 21:41:29 michaelw Exp $
+dnl $Id: aclocal.m4,v 1.78 2001/06/30 00:12:52 sof Exp $
dnl
dnl Extra autoconf macros for the Glasgow fptools
dnl
#include <unistd.h>
#endif
#include <regex.h>
-],[ struct re_pattern_buffer patbuf; re_compile_pattern("",0,&patbuf); ],
+],[ struct re_pattern_buffer patbuf;
+ re_compile_pattern("",0,&patbuf);
+ re_search_2 (&patbuf, "", 0, "",0, 0,0,0,0); ],
fptools_cv_have_regex=yes, fptools_cv_have_regex=no)])
if test "$fptools_cv_have_regex" = yes; then
HaveRegex=YES
fptools_cv_happy_version="";
fi;
changequote([, ])dnl
+])
if test -d $srcdir/ghc; then
FPTOOLS_PROG_CHECK_VERSION([$fptools_cv_happy_version],-lt,[1.9],
[AC_MSG_ERROR([Happy version 1.9 or later is required to compile GHC.])])dnl
-fi;
-])
+fi
HappyVersion=$fptools_cv_happy_version;
AC_SUBST(HappyVersion)
])
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 1.70 2001/04/17 21:41:29 michaelw Exp $
dnl @author Matthew D. Langston <langston@SLAC.Stanford.EDU>
# FPTOOLS_CHECK_LIBM - check for math library
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 1.70 2001/04/17 21:41:29 michaelw Exp $
dnl @author Matthew D. Langston <langston@SLAC.Stanford.EDU>
AC_DEFUN(FPTOOLS_HAVE_OPENGL,
])
# LocalWords: fi
+
+dnl
+dnl acspecific.m4's defn of AC_PROG_LEX is a bit too permissive, as it
+dnl defaults to 'lex' if 'flex' isn't found (without checking whether
+dnl 'lex' is actually present along the user's PATH).
+dnl
+AC_DEFUN(AC_PROG_LEX_STRICT,
+[AC_CHECK_PROG(LEX, flex, flex)
+if test -z "$LEX"
+then
+ AC_CHECK_PROG(LEX,lex,lex)
+ test -z "$LEX" && AC_MSG_ERROR(['lex' or 'flex' is required to compile GHC.])
+fi
+])
+
+dnl
+dnl Check to see whether CC (gcc) supports a particular option.
+dnl
+AC_DEFUN(FPTOOLS_CC_FLAG,
+[
+AC_CACHE_CHECK([whether $CC accepts $1], [ac_cv_cc_$2],
+[save_CFLAGS="$CFLAGS"
+ CFLAGS="$CFLAGS $1"
+ AC_LANG_C
+ AC_TRY_COMPILE(,[int main(){return(0);}],
+ [ac_cv_cc_$2=yes],
+ [ac_cv_cc_$2=no])
+ CFLAGS="$save_CFLAGS"
+])
+if test "$ac_cv_cc_$2"x = "yesx"; then
+ $2=$extra_flag;
+else
+ $2=$extra_flag;
+fi;
+])