1 files changed, 31 insertions, 0 deletions
diff --git a/m4/ax_check_define.m4 b/m4/ax_check_define.m4
new file mode 100644
index 0000000..490fccc
--- /dev/null
+++ b/m4/ax_check_define.m4
@@ -0,0 +1,31 @@
+# SYNOPSIS
+#
+#   AX_CHECK_DEFINE(includefile, define, [ACTION-SUCCESS], [ACTION-FAILURE])
+#
+# DESCRIPTION
+#
+#    Check whether the given #define is available in the given #include file
+#
+# LICENSE
+#
+#    See the root directory of the libtpms project for the LICENSE
+#
+AC_DEFUN([AX_CHECK_DEFINE],
+ [AC_PREREQ(2.63)
+  AC_MSG_CHECKING(whether $2 is defined in $1)
+  AC_COMPILE_IFELSE(
+   [AC_LANG_PROGRAM([[#include $1]],
+                    [[#ifndef $2
+                    #error $2 not defined
+                    #endif]])],
+   [
+     AC_MSG_RESULT([yes])
+     [$3]
+   ],
+   [
+     AC_MSG_RESULT([no])
+     [$4]
+   ]
+  )
+ ]
+)