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Description: fix FTBFS on x32 due to versioned glibc symbols
protobuf assumes that glibc 2.2.5 memcpy symbols will be available #if
defined(__x86-64__); however, x32 also defines this, but was not
supported prior to 2.16.
Author: Laurence Parry <greenreaper@gmail.com>
Origin: other, https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=931503#5
Forwarded: not-needed
Bug-Debian: https://bugs.debian.org/931503
Last-Update: 2022-03-11
---
--- a/ruby/ext/google/protobuf_c/wrap_memcpy.c
+++ b/ruby/ext/google/protobuf_c/wrap_memcpy.c
@@ -39,7 +39,7 @@
// This wrapper is enabled by passing the linker flags -Wl,-wrap,memcpy in
// extconf.rb.
#ifdef __linux__
-#if defined(__x86_64__) && defined(__GNU_LIBRARY__)
+#if defined(__x86_64__) && !defined(__ILP32__) && 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);
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