X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=aclocal.m4;h=f908e9f8f2b76833e83a5d5c556aba3e130e08a5;hb=cf411c9ae5d61d6e5baa5e5e6b0ad9803b041236;hp=86fdeaf76f3d6412b74d0d036cea1ca85e91b837;hpb=ffdbb302967a147550113251e47b9d98a7affdc0;p=ghc-hetmet.git

diff --git a/aclocal.m4 b/aclocal.m4
index 86fdeaf..f908e9f 100644
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -954,10 +954,42 @@ if test "$fp_cv_gcc_has_no_unit_at_a_time" = "yes"; then
    AC_DEFINE([HAVE_GCC_HAS_NO_UNIT_AT_A_TIME], [1], [Define to 1 if gcc supports -fno-unit-at-a-time.])
 fi])
 
+# FP_GCC_HAS_WRAPV
+# --------------------------
+AC_DEFUN([FP_GCC_HAS_WRAPV],
+[AC_REQUIRE([FP_HAVE_GCC])
+AC_CACHE_CHECK([whether gcc has -fwrapv], [fp_cv_gcc_has_wrapv],
+[FP_COMPARE_VERSIONS([$fp_gcc_version], [-ge], [3.4],
+  [fp_cv_gcc_has_wrapv=yes],
+  [fp_cv_gcc_has_wrapv=no])])
+if test "$fp_cv_gcc_has_wrapv" = "yes"; then
+   AC_DEFINE([HAVE_GCC_HAS_WRAPV], [1], [Define to 1 if gcc supports -fwrapv.])
+fi])
+
 # FP_SETUP_PROJECT_VERSION
 # ---------------------
 AC_DEFUN([FP_SETUP_PROJECT_VERSION],
-[# Some renamings
+[
+if test "$RELEASE" = "NO"; then
+    AC_MSG_CHECKING([for GHC version date])
+    if test -d _darcs; then
+        changequote(, )dnl
+        ver_date=`darcs changes --quiet --no-summary --xml | head -500 | grep 'date=' | sed "s/^.*date='\([0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]\).*$/\1/g" | sort -n | tail -1`
+        if echo $ver_date | grep '^[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]$' 2>&1 >/dev/null; then true; else
+        changequote([, ])dnl
+                AC_MSG_ERROR([failed to detect version date: check that darcs is in your path])
+        fi
+        PACKAGE_VERSION=${PACKAGE_VERSION}.$ver_date
+        AC_MSG_RESULT($PACKAGE_VERSION)
+    elif test -f VERSION; then
+        PACKAGE_VERSION=`cat VERSION`
+        AC_MSG_RESULT($PACKAGE_VERSION)
+    else
+        AC_MSG_WARN([cannot determine snapshot version: no _darcs directory and no VERSION file])
+    fi
+fi
+
+# Some renamings
 AC_SUBST([ProjectName], [$PACKAGE_NAME])
 AC_SUBST([ProjectVersion], [$PACKAGE_VERSION])