X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=aclocal.m4;h=9050299cd5d632dd8d918a21ac09cd46004548b2;hb=0c5ef17631bcad8bed5929ca8fe34e7037109a06;hp=2649df734fc973bbe053ef58b0d60faf317e3ce0;hpb=e2c77ecdd4c46c88767568f478ed5d7388c1b0b2;p=ghc-hetmet.git

diff --git a/aclocal.m4 b/aclocal.m4
index 2649df7..9050299 100644
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -985,7 +985,7 @@ if test "$RELEASE" = "NO"; then
         PACKAGE_VERSION=`cat VERSION`
         AC_MSG_RESULT($PACKAGE_VERSION)
     else
-        AC_MSG_ERROR([no version found])                
+        AC_MSG_WARN([cannot determine snapshot version: no _darcs directory and no VERSION file])
     fi
 fi
 
@@ -1016,4 +1016,42 @@ ProjectPatchLevel=`echo $ProjectPatchLevel | sed 's/\.//'`
 AC_SUBST([ProjectPatchLevel])
 ])# FP_SETUP_PROJECT_VERSION
 
+AC_DEFUN([FP_CHECK_TIMER_CREATE],
+  [AC_CACHE_CHECK([for a working timer_create(CLOCK_REALTIME)], 
+    [fptools_cv_timer_create_works],
+    [AC_TRY_RUN([
+#ifdef HAVE_TIME_H
+#include <time.h>
+#endif
+#ifdef HAVE_SIGNAL_H
+#include <signal.h>
+#endif
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+int main(int argc, char *argv[])
+{
+#if HAVE_TIMER_CREATE && HAVE_TIMER_SETTIME
+    struct sigevent ev;
+    timer_t timer;
+    ev.sigev_notify = SIGEV_SIGNAL;
+    ev.sigev_signo  = SIGVTALRM;
+    if (timer_create(CLOCK_PROCESS_CPUTIME_ID, &ev, &timer) != 0) {
+       exit(1);
+    }
+#else
+    exit(1)
+#endif
+    exit(0);
+}
+     ],
+     [fptools_cv_timer_create_works=yes],
+     [fptools_cv_timer_create_works=no])
+  ])
+case $fptools_cv_timer_create_works in
+    yes) AC_DEFINE([USE_TIMER_CREATE], 1, 
+                   [Define to 1 if we can use timer_create(CLOCK_PROCESS_CPUTIME_ID,...)]);;
+esac
+])
+
 # LocalWords:  fi