adding m4 from the check unit test suiteRELEASE-0_8_5BRANCH-GSTREAMER-0_8-ROOTBRANCH-COMPANY

Original commit message from CVS:
adding m4 from the check unit test suite

2 files changed, 137 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index 7e23a5c..88e2200 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2005-03-11  Thomas Vander Stichele  <thomas at apestaart dot org>
+
+	* m4/check.m4: m4 from the check unit test suite
+
 2004-12-14  David Schleef  <ds@schleef.org>
 
 	* m4/gst-arch.m4: remove MMX stuff, since it doesn't work and
diff --git a/m4/check.m4 b/m4/check.m4
new file mode 100644
index 0000000..a2e0812
--- /dev/null
+++ b/m4/check.m4
@@ -0,0 +1,133 @@
+dnl AM_PATH_CHECK([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
+dnl Test for check, and define CHECK_CFLAGS and CHECK_LIBS
+dnl
+
+AC_DEFUN([AM_PATH_CHECK],
+[
+  AC_ARG_WITH(check,
+  [  --with-check=PATH       prefix where check is installed [default=auto]])
+ 
+  min_check_version=ifelse([$1], ,0.8.2,$1)
+
+  AC_MSG_CHECKING(for check - version >= $min_check_version)
+
+  if test x$with_check = xno; then
+    AC_MSG_RESULT(disabled)
+    ifelse([$3], , AC_MSG_ERROR([disabling check is not supported]), [$3])
+  else
+    if test "x$with_check" != x; then
+      CHECK_CFLAGS="-I$with_check/include"
+      CHECK_LIBS="-L$with_check/lib -lcheck"
+    else
+      CHECK_CFLAGS=""
+      CHECK_LIBS="-lcheck"
+    fi
+
+    ac_save_CFLAGS="$CFLAGS"
+    ac_save_LIBS="$LIBS"
+
+    CFLAGS="$CFLAGS $CHECK_CFLAGS"
+    LIBS="$CHECK_LIBS $LIBS"
+
+    rm -f conf.check-test
+    AC_TRY_RUN([
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <check.h>
+
+int main ()
+{
+  int major, minor, micro;
+  char *tmp_version;
+
+  system ("touch conf.check-test");
+
+  /* HP/UX 9 (%@#!) writes to sscanf strings */
+  tmp_version = strdup("$min_check_version");
+  if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, &micro) != 3) {
+     printf("%s, bad version string\n", "$min_check_version");
+     return 1;
+   }
+    
+  if ((CHECK_MAJOR_VERSION != check_major_version) ||
+      (CHECK_MINOR_VERSION != check_minor_version) ||
+      (CHECK_MICRO_VERSION != check_micro_version))
+    {
+      printf("\n*** The check header file (version %d.%d.%d) does not match\n",
+	     CHECK_MAJOR_VERSION, CHECK_MINOR_VERSION, CHECK_MICRO_VERSION);
+      printf("*** the check library (version %d.%d.%d).\n",
+	     check_major_version, check_minor_version, check_micro_version);
+      return 1;
+    }
+
+  if ((check_major_version > major) ||
+      ((check_major_version == major) && (check_minor_version > minor)) ||
+      ((check_major_version == major) && (check_minor_version == minor) && (check_micro_version >= micro)))
+    {
+      return 0;
+    }
+  else
+    {
+      printf("\n*** An old version of check (%d.%d.%d) was found.\n",
+             check_major_version, check_minor_version, check_micro_version);
+      printf("*** You need a version of check being at least %d.%d.%d.\n", major, minor, micro);
+      printf("***\n"); 
+      printf("*** If you have already installed a sufficiently new version, this error\n");
+      printf("*** probably means that the wrong copy of the check library and header\n");
+      printf("*** file is being found. Rerun configure with the --with-check=PATH option\n");
+      printf("*** to specify the prefix where the correct version was installed.\n");
+    }
+
+  return 1;
+}
+],, no_check=yes, [echo $ac_n "cross compiling; assumed OK... $ac_c"])
+
+    CFLAGS="$ac_save_CFLAGS"
+    LIBS="$ac_save_LIBS"
+
+    if test "x$no_check" = x ; then
+      AC_MSG_RESULT(yes)
+      ifelse([$2], , :, [$2])
+    else
+      AC_MSG_RESULT(no)
+      if test -f conf.check-test ; then
+        :
+      else
+        echo "*** Could not run check test program, checking why..."
+        CFLAGS="$CFLAGS $CHECK_CFLAGS"
+        LIBS="$CHECK_LIBS $LIBS"
+        AC_TRY_LINK([
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <check.h>
+], ,  [ echo "*** The test program compiled, but did not run. This usually means"
+        echo "*** that the run-time linker is not finding check. You'll need to set your"
+        echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
+        echo "*** to the installed location  Also, make sure you have run ldconfig if that"
+        echo "*** is required on your system"
+	echo "***"
+        echo "*** If you have an old version installed, it is best to remove it, although"
+        echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"],
+      [ echo "*** The test program failed to compile or link. See the file config.log for"
+        echo "*** the exact error that occured." ])
+      
+        CFLAGS="$ac_save_CFLAGS"
+        LIBS="$ac_save_LIBS"
+      fi
+
+      CHECK_CFLAGS=""
+      CHECK_LIBS=""
+
+      rm -f conf.check-test
+      ifelse([$3], , AC_MSG_ERROR([check not found]), [$3])
+    fi
+
+    AC_SUBST(CHECK_CFLAGS)
+    AC_SUBST(CHECK_LIBS)
+
+    rm -f conf.check-test
+
+  fi
+])