Use __has_declspec_attribute for shared builds

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Don 2018-09-05 10:01:50 -07:00 committed by GitHub
parent f79a58120e
commit d82811303b
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1 changed files with 6 additions and 1 deletions

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@ -31,6 +31,11 @@
# define WIN32
#endif
/* Compatibility for non-Clang compilers */
#ifndef __has_declspec_attribute
# define __has_declspec_attribute(x) 0
#endif
#ifdef __cplusplus
extern "C" {
#endif
@ -51,7 +56,7 @@ extern "C" {
#ifdef NGHTTP2_STATICLIB
# define NGHTTP2_EXTERN
#elif defined(WIN32)
#elif defined(WIN32) || (__has_declspec_attribute(dllexport) && __has_declspec_attribute(dllimport))
# ifdef BUILDING_NGHTTP2
# define NGHTTP2_EXTERN __declspec(dllexport)
# else /* !BUILDING_NGHTTP2 */