cmake HAVE_MAPFILE examples

FilmKilns/FilmKilns src/skia/third_party/externals/libjpeg-turbo/CMakeLists.txt :472 

check_c_source_compiles("void foo() {} void foo2() {} int main(void) { return 0; }"
        HAVE_MAPFILE)

mozilla/mozjpeg CMakeLists.txt :569 

check_c_source_compiles("int foo() { return 0; } int foo2() { return 2; }"
        HAVE_MAPFILE)

orbbec/OrbbecSDK_v2 3rdparty/libjpeg/src/CMakeLists.txt :535 

check_c_source_compiles("int foo() { return 0; } int foo2() { return 2; }"
        HAVE_MAPFILE)

neka-nat/cupoch third_party/libjpeg-turbo/libjpeg-turbo/CMakeLists.txt :474 

check_c_source_compiles("int foo() { return 0; } int foo2() { return 2; }"
        HAVE_MAPFILE)

joedrago/colorist ext/libjpeg-turbo/CMakeLists.txt :473 

check_c_source_compiles("int foo() { return 0; } int foo2() { return 2; }"
        HAVE_MAPFILE)

openpnp/openpnp-capture linux/contrib/libjpeg-turbo-dev/CMakeLists.txt :458 

check_c_source_compiles("void foo() {} void foo2() {} int main(void) { return 0; }"
        HAVE_MAPFILE)