ENH: Generalize the check for sizeof void* to detect more ABI information.

1 files changed, 24 insertions, 0 deletions

diff --git a/Modules/CMakeCXXCompilerABI.cpp b/Modules/CMakeCXXCompilerABI.cpp
new file mode 100644
index 0000000000..7fb3618870
--- /dev/null
+++ b/Modules/CMakeCXXCompilerABI.cpp
@@ -0,0 +1,24 @@
+#ifndef __cplusplus
+# error "A C compiler has been selected for C++."
+#endif
+
+/*--------------------------------------------------------------------------*/
+
+#include "CMakeCompilerABI.h"
+
+/*--------------------------------------------------------------------------*/
+
+/* Make sure the information strings are referenced.  */
+#define REQUIRE(x) (&x[0] != &require)
+
+int main()
+{
+  const char require = 0;
+  return
+    (
+      REQUIRE(info_sizeof_dptr)
+#if defined(ABI_ID)
+      && REQUIRE(info_abi)
+#endif
+      );
+}