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guix/gnu/packages/patches/gcc-7-cross-mingw.patch
Jan Nieuwenhuizen 308eb5c11a
gnu: gcc: Fix mingw cross compiler.
* gnu/packages/patches/gcc-7-cross-mingw.patch: New file.
* gnu/packages/cross-base.scm (cross-gcc-patches): Add XGCC parameter; update
caller.  Use it for target mingw and gcc >= 7.
* gnu/local.mk (dist_patch_DATA): Add it.
2019-09-27 06:42:47 +02:00

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This fixes
../../../../gcc-7.4.0/libstdc++-v3/libsupc++/new_opa.cc: In function void* __gnu_cxx::aligned_alloc(std::size_t, std::size_t):
../../../../gcc-7.4.0/libstdc++-v3/libsupc++/new_opa.cc:78:10: error: memalign was not declared in this scope
return memalign (al, sz);
^~~~~~~~
../../../../gcc-7.4.0/libstdc++-v3/libsupc++/new_opa.cc:78:10: note: suggested alternative: max_align_t
return memalign (al, sz);
^~~~~~~~
max_align_t
diff --git a/libstdc++-v3/libsupc++/new_opa.cc b/libstdc++-v3/libsupc++/new_opa.cc
index 94e79cadb0e..084900e0daf 100644
--- a/libstdc++-v3/libsupc++/new_opa.cc
+++ b/libstdc++-v3/libsupc++/new_opa.cc
@@ -39,6 +39,8 @@ extern "C" void *memalign(std::size_t boundary, std::size_t size);
# endif
#endif
+#define memalign _aligned_malloc
+
using std::new_handler;
using std::bad_alloc;