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cmake: test -Wl,--version-script with minimal version script

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Android ndk 26 errors when a symbol in the version script is not defined.
This commit is contained in:
Anonymous Maarten
2023-09-20 04:24:08 +02:00
committed by Anonymous Maarten
parent 0efa196989
commit 3a36433a3c
2 changed files with 12 additions and 3 deletions
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13
cmake/macros.cmake
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@@ -82,16 +82,25 @@ if(APPLE)
enable_language(OBJC)
endif()
function(check_linker_supports_version_file VAR)
cmake_push_check_state()
file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/dummy.sym" "n_0 {\n global:\n func;\n local: *;\n};\n")
list(APPEND CMAKE_REQUIRED_LINK_OPTIONS "-Wl,--version-script=${CMAKE_CURRENT_BINARY_DIR}/dummy.sym")
check_c_source_compiles("int func(void) {return 0;} int main(int argc,char*argv[]){(void)argc;(void)argv;return func();}" LINKER_SUPPORTS_VERSION_SCRIPT FAIL_REGEX "(unsupported|syntax error)")
cmake_pop_check_state()
set(${VAR} "${LINKER_SUPPORTS_VERSION_SCRIPT}" PARENT_SCOPE)
endfunction()
if(CMAKE_VERSION VERSION_LESS 3.18)
function(check_linker_flag LANG FLAG VAR)
cmake_push_check_state()
list(APPEND CMAKE_REQUIRED_LINK_OPTIONS ${FLAG} )
if(LANG STREQUAL "C")
include(CheckCSourceCompiles)
check_c_source_compiles("int main(int argc,char*argv[]){(void)argc;(void)argv;return 0;}" ${VAR} FAIL_REGEX "warning")
check_c_source_compiles("int main(int argc,char*argv[]){(void)argc;(void)argv;return 0;}" ${VAR} FAIL_REGEX "(unsupported|syntax error)")
elseif(LANG STREQUAL "CXX")
include(CheckCXXSourceCompiles)
check_cxx_source_compiles("int main(int argc,char*argv[]){(void)argc;(void)argv;return 0;}" ${VAR} FAIL_REGEX "warning")
check_cxx_source_compiles("int main(int argc,char*argv[]){(void)argc;(void)argv;return 0;}" ${VAR} FAIL_REGEX "(unsupported|syntax error)")
else()
message(FATAL_ERROR "Unsupported language: ${LANG}")
endif()