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build: add define guard around UV_EXTERN (#3855)

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Incidentally lets users control the definition of UV_EXTERN.
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Zvicii 2023-01-04 05:03:37 +08:00 committed by GitHub
parent e9d91fccfc
commit 12b8c116a4
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1 changed files with 2 additions and 0 deletions
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include/uv.h
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@ -31,6 +31,7 @@ extern "C" {
#error "Define either BUILDING_UV_SHARED or USING_UV_SHARED, not both." #error "Define either BUILDING_UV_SHARED or USING_UV_SHARED, not both."
#endif #endif
#ifndef UV_EXTERN
#ifdef _WIN32 #ifdef _WIN32
/* Windows - set up dll import/export decorators. */ /* Windows - set up dll import/export decorators. */
# if defined(BUILDING_UV_SHARED) # if defined(BUILDING_UV_SHARED)
@ -50,6 +51,7 @@ extern "C" {
#else #else
# define UV_EXTERN /* nothing */ # define UV_EXTERN /* nothing */
#endif #endif
#endif /* UV_EXTERN */
#include "uv/errno.h" #include "uv/errno.h"
#include "uv/version.h" #include "uv/version.h"