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Set visibility "default" only when exporting

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GCC-like compilers only export symbols when ``MI_SHARED_LIB`` and
``MI_SHARED_LIB_EXPORT`` are defined.

Fixes: https://github.com/microsoft/mimalloc/issues/475
Signed-off-by: Christian Heimes <christian@python.org>
This commit is contained in:
Christian Heimes 2021-10-27 12:30:32 +02:00
parent 02938b7048
commit ef7674443d
1 changed files with 5 additions and 1 deletions
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6
include/mimalloc.h
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@ -59,7 +59,11 @@ terms of the MIT license. A copy of the license can be found in the file
#define mi_attr_alloc_align(p)
#elif defined(__GNUC__) // includes clang and icc
#define mi_cdecl // leads to warnings... __attribute__((cdecl))
#define mi_decl_export __attribute__((visibility("default")))
#if defined(MI_SHARED_LIB) && defined(MI_SHARED_LIB_EXPORT)
#define mi_decl_export __attribute__((visibility("default")))
#else
#define mi_decl_export
#endif
#define mi_decl_restrict
#define mi_attr_malloc __attribute__((malloc))
#if (defined(__clang_major__) && (__clang_major__ < 4)) || (__GNUC__ < 5)