[gcc r11-3529] testsuite: Prevent spellcheck-inttypes failures on AIX.

[gcc r11-3529] testsuite: Prevent spellcheck-inttypes failures on AIX.

[David Edelsohn]

https://gcc.gnu.org/g:74b5b8dec467f922f6c40a320859054081c7bb09

commit r11-3529-g74b5b8dec467f922f6c40a320859054081c7bb09
Author: David Edelsohn <dje.gcc@gmail.com>
Date:   Sun Sep 27 11:47:25 2020 -0400

    testsuite: Prevent spellcheck-inttypes failures on AIX.
    
    AIX stdio.h implicitly includes sys/types.h, which implicitly includes
    inttypes.h.  With a recent AIX header fixincludes change to unilaterally
    define STDC Macros, the GCC testsuite uses of inttypes now fails.
    
    This patch explicitly defines the _STD_TYPES_T macro when the test is
    run on AIX so that the inttypes.h header behaves as the testcase requires.
    
    gcc/testsuite/ChangeLog:
    
    2020-09-29  David Edelsohn  <dje.gcc@gmail.com>
    
            * g++.dg/spellcheck-inttypes.C: Define _STD_TYPES_T on AIX.
            * gcc.dg/spellcheck-inttypes.c: Same.

Diff:
---
 gcc/testsuite/g++.dg/spellcheck-inttypes.C | 3 +++
 gcc/testsuite/gcc.dg/spellcheck-inttypes.c | 2 +-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/gcc/testsuite/g++.dg/spellcheck-inttypes.C b/gcc/testsuite/g++.dg/spellcheck-inttypes.C
index 84bfc125513..fea30960886 100644
--- a/gcc/testsuite/g++.dg/spellcheck-inttypes.C
+++ b/gcc/testsuite/g++.dg/spellcheck-inttypes.C
@@ -1,4 +1,7 @@
 /* { dg-options "-std=c++11" } */
+#ifdef _AIX
+#define _STD_TYPES_T
+#endif
 #include <cstdio>
 #include <cstdint>
 /* Missing <cinttypes>.  */
diff --git a/gcc/testsuite/gcc.dg/spellcheck-inttypes.c b/gcc/testsuite/gcc.dg/spellcheck-inttypes.c
index 1146a7cff5b..611d7f02258 100644
--- a/gcc/testsuite/gcc.dg/spellcheck-inttypes.c
+++ b/gcc/testsuite/gcc.dg/spellcheck-inttypes.c
@@ -1,7 +1,7 @@
 /* { dg-options "-std=c99" } */
 /* Prevent AIX from implicitly including inttypes.h.  */
 #ifdef _AIX
-#define _H_INTTYPES_TYPE_TS
+#define _STD_TYPES_T
 #endif
 #include <stdio.h>
 #include <stdint.h>