configure: Fix configure check to look for egl.h in the correct directory

This configure check was broken by looking for GL/egl.h instead of
EGL/egl.h as it should. This failure was masked on any system with an
EGL implementation providing a pkg-config file (egl.pc).

diff --git a/configure b/configure
index d5438d33dc876c691fb05f22e831d793b875bbde..ef8aed015e7080a38512a4c229ba5eebd7cef869 100755 (executable)
--- a/configure
+++ b/configure
@@ -308,14 +308,14 @@ else
 fi
 rm -f glx-minimal glx-minimal.c
 
-printf "       Checking for GL/egl.h... "
+printf "       Checking for EGL/egl.h... "
 have_egl=No
 if pkg-config --exists egl; then
     printf "Yes.\n"
     have_egl=Yes
     egl_cflags=$(pkg-config --cflags egl)
 else
-    printf "#include <GL/egl.h>\nint main(void){return 0;}\n" > egl-minimal.c
+    printf "#include <EGL/egl.h>\nint main(void){return 0;}\n" > egl-minimal.c
     if ${CC} -o egl-minimal egl-minimal.c ${gl_cflags} > /dev/null 2>&1
     then
        printf "Yes.\n"