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Don't export functions when static linking

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This commit is contained in:
Chris Robinson
2020-06-10 21:03:04 -07:00
parent c50250c978
commit 15437e3140
1 changed files with 28 additions and 22 deletions
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CMakeLists.txt
+28 -22
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@@ -281,34 +281,40 @@ ELSE()
ENDIF()
# Set visibility/export options if available
IF(WIN32)
SET(EXPORT_DECL "__declspec(dllexport)")
ELSE()
SET(OLD_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS}")
if(WIN32)
if(NOT LIBTYPE STREQUAL "STATIC")
set(EXPORT_DECL "__declspec(dllexport)")
endif()
else()
set(OLD_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS}")
# Yes GCC, really don't accept visibility modes you don't support
SET(CMAKE_REQUIRED_FLAGS "${OLD_REQUIRED_FLAGS} -Wattributes -Werror")
set(CMAKE_REQUIRED_FLAGS "${OLD_REQUIRED_FLAGS} -Wattributes -Werror")
CHECK_C_SOURCE_COMPILES("int foo() __attribute__((visibility(\"protected\")));
check_c_source_compiles("int foo() __attribute__((visibility(\"protected\")));
int main() {return 0;}" HAVE_GCC_PROTECTED_VISIBILITY)
IF(HAVE_GCC_PROTECTED_VISIBILITY)
SET(EXPORT_DECL "__attribute__((visibility(\"protected\")))")
ELSE()
CHECK_C_SOURCE_COMPILES("int foo() __attribute__((visibility(\"default\")));
if(HAVE_GCC_PROTECTED_VISIBILITY)
if(NOT LIBTYPE STREQUAL "STATIC")
set(EXPORT_DECL "__attribute__((visibility(\"protected\")))")
endif()
else()
check_c_source_compiles("int foo() __attribute__((visibility(\"default\")));
int main() {return 0;}" HAVE_GCC_DEFAULT_VISIBILITY)
IF(HAVE_GCC_DEFAULT_VISIBILITY)
SET(EXPORT_DECL "__attribute__((visibility(\"default\")))")
ENDIF()
ENDIF()
if(HAVE_GCC_DEFAULT_VISIBILITY)
if(NOT LIBTYPE STREQUAL "STATIC")
set(EXPORT_DECL "__attribute__((visibility(\"default\")))")
endif()
endif()
endif()
IF(HAVE_GCC_PROTECTED_VISIBILITY OR HAVE_GCC_DEFAULT_VISIBILITY)
CHECK_C_COMPILER_FLAG(-fvisibility=hidden HAVE_VISIBILITY_HIDDEN_SWITCH)
IF(HAVE_VISIBILITY_HIDDEN_SWITCH)
SET(C_FLAGS ${C_FLAGS} -fvisibility=hidden)
ENDIF()
ENDIF()
if(HAVE_GCC_PROTECTED_VISIBILITY OR HAVE_GCC_DEFAULT_VISIBILITY)
check_c_compiler_flag(-fvisibility=hidden HAVE_VISIBILITY_HIDDEN_SWITCH)
if(HAVE_VISIBILITY_HIDDEN_SWITCH)
set(C_FLAGS ${C_FLAGS} -fvisibility=hidden)
endif()
endif()
SET(CMAKE_REQUIRED_FLAGS "${OLD_REQUIRED_FLAGS}")
ENDIF()
set(CMAKE_REQUIRED_FLAGS "${OLD_REQUIRED_FLAGS}")
endif()
set(SSE2_SWITCH "")