Add compile warning

engine/CMakeLists.txt

@@ -3,6 +3,8 @@ project(Breeze C)
 
 set(CMAKE_C_STANDARD 11)
 
+add_compile_options(-Wall -Wextra -Wpedantic -std=c11)
+
 add_compile_definitions(DEBUG_MODE)
 
 set(BUILD_EXAMPLES false)

engine/libs/raylib-4.5.0/src/rcore.c

@@ -3218,6 +3218,7 @@ const char *GetApplicationDirectory(void)
     }
 
 #elif defined(__linux__)
+    ssize_t readlink(const char *, const char *, unsigned int);
     unsigned int size = sizeof(appDir);
     ssize_t len = readlink("/proc/self/exe", appDir, size);
 
@@ -4937,6 +4938,7 @@ void WaitTime(double seconds)
         req.tv_sec = sec;
         req.tv_nsec = nsec;
 
+        int nanosleep(const struct timespec *req, struct timespec *rem);
         // NOTE: Use nanosleep() on Unix platforms... usleep() it's deprecated.
         while (nanosleep(&req, &req) == -1) continue;
     #endif