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authorKamlesh Kumar <kamleshbhalui@gmail.com>2019-12-05 16:49:00 +0100
committerFlorian Weimer <fweimer@redhat.com>2019-12-05 16:50:00 +0100
commit953ceff17a4a15b10cfdd5edc3c8cae4884c8ec3 (patch)
treef42e201d4ccf6d44b249579387444ed11c1d4d99 /string
parent066d80a7cdfa5ab7b2dd66cb51e8abeed60227e5 (diff)
downloadglibc-953ceff17a4a15b10cfdd5edc3c8cae4884c8ec3.tar.gz
<string.h>: Define __CORRECT_ISO_CPP_STRING_H_PROTO for Clang [BZ #25232]
Without the asm redirects, strchr et al. are not const-correct. libc++ has a wrapper header that works with and without __CORRECT_ISO_CPP_STRING_H_PROTO (using a Clang extension). But when Clang is used with libstdc++ or just C headers, the overloaded functions with the correct types are not declared. This change does not impact current GCC (with libstdc++ or libc++).
Diffstat (limited to 'string')
-rw-r--r--string/string.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/string/string.h b/string/string.h
index 73c22a535a..faf997b972 100644
--- a/string/string.h
+++ b/string/string.h
@@ -33,7 +33,8 @@ __BEGIN_DECLS
#include <stddef.h>
/* Tell the caller that we provide correct C++ prototypes. */
-#if defined __cplusplus && __GNUC_PREREQ (4, 4)
+#if defined __cplusplus && (__GNUC_PREREQ (4, 4) \
+ || __glibc_clang_prereq (3, 5))
# define __CORRECT_ISO_CPP_STRING_H_PROTO
#endif