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Merge pull request #2674 from terrelln/trace-aix 

[trace] Refine the ZSTD_HAVE_WEAK_SYMBOLS detection
dev
Nick Terrell 2021-05-19 10:18:58 -07:00 committed by GitHub
parent d92fef0f0a 746f7976ab
commit ba500c8e35
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1 changed files with 12 additions and 3 deletions
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15
lib/common/zstd_trace.h
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@ -17,10 +17,19 @@ extern "C" {
#include <stddef.h>
/* weak symbol support */
#if !defined(ZSTD_HAVE_WEAK_SYMBOLS) && defined(__GNUC__) && \
/* weak symbol support
* For now, enable conservatively:
* - Only GNUC
* - Only ELF
* - Only x86-64 and i386
* Also, explicitly disable on platforms known not to work so they aren't
* forgotten in the future.
*/
#if !defined(ZSTD_HAVE_WEAK_SYMBOLS) && \
defined(__GNUC__) && defined(__ELF__) && \
(defined(__x86_64__) || defined(_M_X64) || defined(__i386__) || defined(_M_IX86)) && \
!defined(__APPLE__) && !defined(_WIN32) && !defined(__MINGW32__) && \
!defined(__CYGWIN__)
!defined(__CYGWIN__) && !defined(_AIX)
# define ZSTD_HAVE_WEAK_SYMBOLS 1
#else
# define ZSTD_HAVE_WEAK_SYMBOLS 0