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

1 files changed, 26 insertions, 0 deletions

diff --git a/Modules/CMakeCompilerABI.h b/Modules/CMakeCompilerABI.h
new file mode 100644
index 0000000000..8980abb5af
--- /dev/null
+++ b/Modules/CMakeCompilerABI.h
@@ -0,0 +1,26 @@
+/*--------------------------------------------------------------------------*/
+
+/* Size of a pointer-to-data in bytes.  */
+#define SIZEOF_DPTR (sizeof(void*))
+const char info_sizeof_dptr[] =  {
+  'I', 'N', 'F', 'O', ':', 's', 'i', 'z', 'e', 'o', 'f', '_', 'd', 'p', 't', 'r', '[',
+  ('0' + ((SIZEOF_DPTR / 10)%10)),
+  ('0' +  (SIZEOF_DPTR    % 10)),
+  ']','\0'};
+
+/*--------------------------------------------------------------------------*/
+
+/* Application Binary Interface.  */
+#if defined(__sgi) && defined(_ABIO32)
+# define ABI_ID "ELF O32"
+#elif defined(__sgi) && defined(_ABIN32)
+# define ABI_ID "ELF N32"
+#elif defined(__sgi) && defined(_ABI64)
+# define ABI_ID "ELF 64"
+#elif defined(__ELF__)
+# define ABI_ID "ELF"
+#endif
+
+#if defined(ABI_ID)
+static char const info_abi[] = "INFO:abi[" ABI_ID "]";
+#endif