Review some issues

src/core.c

@@ -121,6 +121,11 @@
 
 #include "utils.h"                  // Required for: TRACELOG() macros
 
+#if (defined(__linux__) || defined(PLATFORM_WEB)) && _POSIX_C_SOURCE < 199309L
+    #undef _POSIX_C_SOURCE
+    #define _POSIX_C_SOURCE 199309L // Required for: CLOCK_MONOTONIC if compiled with c99 without gnu ext.
+#endif
+
 #define RLGL_IMPLEMENTATION
 #include "rlgl.h"                   // OpenGL abstraction layer to OpenGL 1.1, 3.3+ or ES2
 
@@ -154,11 +159,6 @@
     #include "external/sdefl.h"     // Deflate (RFC 1951) compressor
 #endif
 
-#if (defined(__linux__) || defined(PLATFORM_WEB)) && _POSIX_C_SOURCE < 199309L
-    #undef _POSIX_C_SOURCE
-    #define _POSIX_C_SOURCE 199309L // Required for: CLOCK_MONOTONIC if compiled with c99 without gnu ext.
-#endif
-
 #include <stdlib.h>                 // Required for: srand(), rand(), atexit()
 #include <stdio.h>                  // Required for: sprintf() [Used in OpenURL()]
 #include <string.h>                 // Required for: strrchr(), strcmp(), strlen()

src/rlgl.h

@@ -2968,7 +2968,7 @@ void *rlReadTexturePixels(unsigned int id, int width, int height, int format)
     glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, id, 0);
 
     // We read data as RGBA because FBO texture is configured as RGBA, despite binding another texture format
-    pixels = (unsigned char *)RL_MALLOC(rlGetPixelDataSize(texture.width, texture.height, PIXELFORMAT_UNCOMPRESSED_R8G8B8A8));
+    pixels = (unsigned char *)RL_MALLOC(rlGetPixelDataSize(width, height, PIXELFORMAT_UNCOMPRESSED_R8G8B8A8));
     glReadPixels(0, 0, width, height, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
 
     glBindFramebuffer(GL_FRAMEBUFFER, 0);