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Merge "windows exports: use dllexport attribute, instead of visibility." into main

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This commit is contained in:
James Zern 2024-03-06 23:54:57 +00:00 committed by Gerrit Code Review
commit 661c1b6641
4 changed files with 14 additions and 15 deletions
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4
CMakeLists.txt
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@ -135,7 +135,7 @@ if(WEBP_UNICODE)
add_definitions(-DUNICODE -D_UNICODE)
endif()
if(MSVC AND BUILD_SHARED_LIBS)
if(WIN32 AND BUILD_SHARED_LIBS)
add_definitions(-DWEBP_DLL)
endif()
@ -163,7 +163,9 @@ if(MSVC)
set(CMAKE_STATIC_LIBRARY_PREFIX "${webp_libname_prefix}")
endif()
if(NOT WIN32)
set(CMAKE_C_VISIBILITY_PRESET hidden)
endif()
if(WEBP_ENABLE_WUNUSED_RESULT)
if(CMAKE_VERSION VERSION_GREATER_EQUAL 3.21.0)

3
configure.ac
View File

@ -763,7 +763,8 @@ AC_CONFIG_FILES([Makefile src/Makefile man/Makefile \
src/libwebp.pc src/libwebpdecoder.pc \
src/demux/libwebpdemux.pc src/mux/libwebpmux.pc])
dnl fix exports from MinGW builds
AC_CONFIG_COMMANDS_POST([$SED -i 's/-DDLL_EXPORT/-DWEBP_DLL/' config.status])
AC_OUTPUT
AC_MSG_NOTICE([

10
sharpyuv/sharpyuv.h
View File

@ -22,15 +22,13 @@ extern "C" {
#else
// This explicitly marks library functions and allows for changing the
// signature for e.g., Windows DLL builds.
#if defined(__GNUC__) && __GNUC__ >= 4
#if defined(_WIN32) && defined(WEBP_DLL)
#define SHARPYUV_EXTERN __declspec(dllexport)
#elif defined(__GNUC__) && __GNUC__ >= 4
#define SHARPYUV_EXTERN extern __attribute__((visibility("default")))
#else
#if defined(_MSC_VER) && defined(WEBP_DLL)
#define SHARPYUV_EXTERN __declspec(dllexport)
#else
#define SHARPYUV_EXTERN extern
#endif /* _MSC_VER && WEBP_DLL */
#endif /* __GNUC__ >= 4 */
#endif /* defined(_WIN32) && defined(WEBP_DLL) */
#endif /* WEBP_EXTERN */
#endif /* SHARPYUV_EXTERN */

10
src/webp/types.h
View File

@ -56,15 +56,13 @@ typedef long long int int64_t;
#ifndef WEBP_EXTERN
// This explicitly marks library functions and allows for changing the
// signature for e.g., Windows DLL builds.
# if defined(__GNUC__) && __GNUC__ >= 4
# if defined(_WIN32) && defined(WEBP_DLL)
# define WEBP_EXTERN __declspec(dllexport)
# elif defined(__GNUC__) && __GNUC__ >= 4
# define WEBP_EXTERN extern __attribute__ ((visibility ("default")))
# else
# if defined(_MSC_VER) && defined(WEBP_DLL)
# define WEBP_EXTERN __declspec(dllexport)
# else
# define WEBP_EXTERN extern
# endif
# endif /* __GNUC__ >= 4 */
# endif /* defined(_WIN32) && defined(WEBP_DLL) */
#endif /* WEBP_EXTERN */
// Macro to check ABI compatibility (same major revision number)