get libsmi into the picture

svn path=/trunk/; revision=22661

1 files changed, 38 insertions, 0 deletions

diff --git a/aclocal-fallback/libsmi.m4 b/aclocal-fallback/libsmi.m4
new file mode 100644
index 0000000000..29ce719352
--- /dev/null
+++ b/aclocal-fallback/libsmi.m4
@@ -0,0 +1,38 @@
+# Configure paths for libsmi.
+
+dnl AM_PATH_LIBSMI()
+dnl Test for libsmi and defines the symbol LIBSMI if the test is
+dnl successful. Also defines HAVE_LIBSMI_H and adds -llibsmi to the 
+dnl LIBS variable.
+dnl 
+AC_DEFUN([AM_PATH_LIBSMI],
+[
+  AC_CHECK_HEADERS(smi.h)
+  AC_CHECK_LIB(smi, smiInit)
+  AC_MSG_CHECKING([whether to enable libsmi])
+  AC_TRY_RUN([ /* libsmi available check */
+#include <smi.h>
+main()
+{
+  int current, revision, age, n;
+  const int required = 2;
+  if (smiInit(""))
+    exit(1);
+  if (strcmp(SMI_LIBRARY_VERSION, smi_library_version))
+    exit(2);
+  n = sscanf(smi_library_version, "%d:%d:%d", &current, &revision, &age);
+  if (n != 3)
+    exit(3);
+  if (required < current - age || required > current)
+    exit(4);
+  exit(0);
+}
+],
+  [ AC_MSG_RESULT(yes)
+    libsmi=yes],
+  [ AC_MSG_RESULT(no)
+    libsmi=no],
+  [ AC_MSG_RESULT(not when cross-compiling)
+    libsmi=no]
+  )
+])