diff options
| author | Kamlesh Kumar <kamleshbhalui@gmail.com> | 2019-12-05 16:49:00 +0100 |
|---|---|---|
| committer | Dmitry V. Levin <ldv@altlinux.org> | 2020-11-16 08:00:00 +0000 |
| commit | 26f5442ec185defe7a265e0d605c271f799101bf (patch) | |
| tree | a79284da4df0ddc471b820360dd783589eb48d21 | |
| parent | 4b64a4245c85cda5fbf4a40f6d949d0ed4ee566e (diff) | |
<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++).
(cherry picked from commit 953ceff17a4a15b10cfdd5edc3c8cae4884c8ec3)
| -rw-r--r-- | NEWS | 1 | ||||
| -rw-r--r-- | string/string.h | 3 |
2 files changed, 3 insertions, 1 deletions
@@ -153,6 +153,7 @@ The following bugs are resolved with this release: [24744] io: Remove the copy_file_range emulation [25203] libio: Disable vtable validation for pre-2.1 interposed handles [25204] Ignore LD_PREFER_MAP_32BIT_EXEC for SUID programs + [25232] No const correctness for strchr et al. for Clang++ Version 2.27 diff --git a/string/string.h b/string/string.h index 150cfd8b13..22cd0fa08f 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 |