#define _POSIX_C_SOURCE 200112L #define _FEATURE_CONFIG #include #include "config.h" int n = 0; inline void put_lib_flag(const char *flag, int needed) { if (needed) printf("%s%s", n++ ? " " : "", flag); } int main(int argc, char **argv) { put_lib_flag("-lexif", EXIF_SUPPORT); put_lib_flag("-lgif", GIF_SUPPORT); if (n) printf("\n"); return 0; }