mmontag/chip-player-js
libxmp/cmake/libxmp-checks.cmake
:172
check_c_source_compiles("__attribute__((visibility(\"default\"))) int foo(void);
__attribute__((visibility(\"hidden\"))) int bar(void);
int foo (void) { return 0; }
int bar (void) { return 1; }
int main(void) { return 0; }" HAVE_VISIBILITY)