automake: egl: add symbols test

Should help us catch issues where we expose any extra symbols by
mistake. Just like the ones fixes with previous commit.

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Tested-by: Kai Wasserbäch <kai@dev.carbon-project.org>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
Acked-by: Matt Turner <mattst88@gmail.com>

src/egl/Makefile.am

@@ -119,7 +119,10 @@ egl_HEADERS = \
 	$(top_srcdir)/include/EGL/eglmesaext.h \
 	$(top_srcdir)/include/EGL/eglplatform.h
 
+TESTS = egl-symbols-check
+
 EXTRA_DIST = \
+	egl-symbols-check \
 	SConscript \
 	drivers/haiku \
 	docs \

src/egl/egl-symbols-check

@@ -0,0 +1,55 @@
+#!/bin/bash
+
+FUNCS=$(nm -D --defined-only ${1-.libs/libEGL.so} | grep -o "T .*" | cut -c 3- | while read func; do
+( grep -q "^$func$" || echo $func )  <<EOF
+eglBindAPI
+eglBindTexImage
+eglChooseConfig
+eglClientWaitSync
+eglCopyBuffers
+eglCreateContext
+eglCreateImage
+eglCreatePbufferFromClientBuffer
+eglCreatePbufferSurface
+eglCreatePixmapSurface
+eglCreatePlatformPixmapSurface
+eglCreatePlatformWindowSurface
+eglCreateSync
+eglCreateWindowSurface
+eglDestroyContext
+eglDestroyImage
+eglDestroySurface
+eglDestroySync
+eglGetConfigAttrib
+eglGetConfigs
+eglGetCurrentContext
+eglGetCurrentDisplay
+eglGetCurrentSurface
+eglGetDisplay
+eglGetError
+eglGetPlatformDisplay
+eglGetProcAddress
+eglGetSyncAttrib
+eglInitialize
+eglMakeCurrent
+eglQueryAPI
+eglQueryContext
+eglQueryString
+eglQuerySurface
+eglReleaseTexImage
+eglReleaseThread
+eglSurfaceAttrib
+eglSwapBuffers
+eglSwapInterval
+eglTerminate
+eglWaitClient
+eglWaitGL
+eglWaitNative
+eglWaitSync
+_fini
+_init
+EOF
+done)
+
+test ! -n "$FUNCS" || echo $FUNCS
+test ! -n "$FUNCS"