X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=aclocal.m4;h=4f3259ce0100f46e22a80411afcc0a75ae50a61f;hb=fd87c1f8579dd5c118f1867bac42df86bc04ac54;hp=10cd4a7c654dd06d2cf2172b1b2e3b0a49b4cef2;hpb=7bd8a0491055e7ca5709109400459556e870250a;p=ghc-hetmet.git

diff --git a/aclocal.m4 b/aclocal.m4
index 10cd4a7..4f3259c 100644
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -1,14 +1,17 @@
-dnl Extra autoconf macros for the Glasgow fptools
-dnl
-dnl To be a good autoconf citizen, names of local macros have
-dnl prefixed with FPTOOLS_ to ensure we don't clash
-dnl with any pre-supplied autoconf ones.
-
-dnl *** Is altzone available? ***
-dnl 
-AC_DEFUN(FPTOOLS_ALTZONE,
-[AC_CACHE_CHECK([altzone], fptools_cv_altzone,
-[AC_TRY_LINK([#if TIME_WITH_SYS_TIME
+# Extra autoconf macros for the Glasgow fptools
+#
+# To be a good autoconf citizen, names of local macros have prefixed with FP_ to
+# ensure we don't clash with any pre-supplied autoconf ones.
+
+
+# FP_ALTZONE
+# -------------------
+# Defines HAVE_DECL_ALTZONE to 1 if declared, 0 otherwise.
+# Used by base package.
+AC_DEFUN([FP_ALTZONE],
+[AC_REQUIRE([AC_HEADER_TIME])dnl
+AC_CHECK_HEADERS([sys/time.h])
+AC_CHECK_DECLS([altzone], [], [],[#if TIME_WITH_SYS_TIME
 # include <sys/time.h>
 # include <time.h>
 #else
@@ -17,34 +20,8 @@ AC_DEFUN(FPTOOLS_ALTZONE,
 # else
 #  include <time.h>
 # endif
-#endif
-], [return altzone;], 
-fptools_cv_altzone=yes, fptools_cv_altzone=no)])
-if test "$fptools_cv_altzone" = yes; then
-  AC_DEFINE(HAVE_ALTZONE)
-fi
-])
-
-
-dnl *** Does libc contain GNU regex? ***
-dnl 
-AC_DEFUN(FPTOOLS_REGEX_IN_LIBC,
-[AC_CACHE_CHECK([for GNU regex in libc], fptools_cv_have_regex,
-[AC_TRY_LINK([#if HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-#include <regex.h>
-],[ struct re_pattern_buffer patbuf; 
-    re_compile_pattern("",0,&patbuf);
-    re_search_2 (&patbuf, "", 0, "",0, 0,0,0,0); ],
-fptools_cv_have_regex=yes, fptools_cv_have_regex=no)])
-if test "$fptools_cv_have_regex" = yes; then
-	HaveGNURegex=YES
-else
-	HaveGNURegex=NO
-fi
-AC_SUBST(HaveGNURegex)
-])
+#endif])
+])# FP_ALTZONE
 
 
 dnl ** check for leading underscores in symbol names