diff options
Diffstat (limited to 'ruby/ext')
| -rw-r--r-- | ruby/ext/google/protobuf_c/wrap_memcpy.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/ruby/ext/google/protobuf_c/wrap_memcpy.c b/ruby/ext/google/protobuf_c/wrap_memcpy.c index 158952a8..394a52f9 100644 --- a/ruby/ext/google/protobuf_c/wrap_memcpy.c +++ b/ruby/ext/google/protobuf_c/wrap_memcpy.c @@ -30,15 +30,15 @@ #include <string.h> -// On x86-64 Linux, we link against the 2.2.5 version of memcpy so that we -// avoid depending on the 2.14 version of the symbol. This way, distributions -// that are using pre-2.14 versions of glibc can successfully use the gem we -// distribute (https://github.com/google/protobuf/issues/2783). +// On x86-64 Linux with glibc, we link against the 2.2.5 version of memcpy so +// that we avoid depending on the 2.14 version of the symbol. This way, +// distributions that are using pre-2.14 versions of glibc can successfully use +// the gem we distribute (https://github.com/google/protobuf/issues/2783). // // This wrapper is enabled by passing the linker flags -Wl,-wrap,memcpy in // extconf.rb. #ifdef __linux__ -#ifdef __x86_64__ +#if defined(__x86_64__) && defined(__GNU_LIBRARY__) __asm__(".symver memcpy,memcpy@GLIBC_2.2.5"); void *__wrap_memcpy(void *dest, const void *src, size_t n) { return memcpy(dest, src, n); |