egl: Silence warnings when compiled with -pedantic.

Just follow gcc's advices here.

src/egl/main/eglconfig.c

@@ -112,7 +112,7 @@ enum {
    ATTRIB_CRITERION_ATLEAST,
    ATTRIB_CRITERION_MASK,
    ATTRIB_CRITERION_SPECIAL,
-   ATTRIB_CRITERION_IGNORE,
+   ATTRIB_CRITERION_IGNORE
 };
 
 

src/egl/main/egldisplay.h

@@ -14,6 +14,8 @@ enum _egl_resource_type {
 
    _EGL_NUM_RESOURCES
 };
+/* this cannot and need not go into egltypedefs.h */
+typedef enum _egl_resource_type _EGLResourceType;
 
 
 /**

src/egl/main/egldriver.c

@@ -144,7 +144,13 @@ _eglOpenLibrary(const char *driverPath, lib_handle *handle)
       mainFunc = (_EGLMain_t) GetProcAddress(lib, "_eglMain");
 #elif defined(_EGL_PLATFORM_POSIX)
    if (lib) {
-      mainFunc = (_EGLMain_t) dlsym(lib, "_eglMain");
+      union {
+         _EGLMain_t func;
+         void *ptr;
+      } tmp = { NULL };
+      /* direct cast gives a warning when compiled with -pedantic */
+      tmp.ptr = dlsym(lib, "_eglMain");
+      mainFunc = tmp.func;
       if (!mainFunc)
          error = dlerror();
    }

src/egl/main/egltypedefs.h

@@ -8,8 +8,6 @@
 
 #include "eglcompiler.h"
 
-typedef enum _egl_resource_type _EGLResourceType;
-
 typedef struct _egl_api _EGLAPI;
 
 typedef struct _egl_config _EGLConfig;