meson: Force MESA_EGL_NO_X11_HEADER for non-x11 winsys

Not all users would use the cflags from pkgconfig.

Change-Id: If66570b4fba51c70f2e01bd4911714d78b7a8b7e
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>

fixup_nox11.sh

@@ -0,0 +1,10 @@
+#!/bin/sh -e
+
+[ $# -lt 1 ] && {
+	echo "usage: $0 <path of eglplatform.h>"
+	exit 1
+}
+
+HEADER="${MESON_INSTALL_DESTDIR_PREFIX:-/usr}/$1"
+
+sed -i 's/MESA_EGL_NO_X11_HEADERS/__unix__/g' "$HEADER"

meson.build

@@ -194,7 +194,6 @@ foreach name, values : map
   wrapper_libs = values[1]
   headers = values[2]
   pkg_version = values[3]
-  mali_cflags = []
   wrapper_ldflags = []
   is_opencl_icd = opencl_icd and name == 'OpenCL'
 
@@ -202,10 +201,6 @@ foreach name, values : map
     continue
   endif
 
-  if name == 'egl' and platform != 'x11'
-    mali_cflags += '-DMESA_EGL_NO_X11_HEADERS'
-  endif
-
   foreach wrapper, version : wrapper_libs
     wrapper_ldflags += '-l' + wrapper
 
@@ -247,7 +242,6 @@ foreach name, values : map
   pkgconfig.generate(
     libraries : ['-L${libdir} -lmali', wrapper_ldflags],
     requires : requires,
-    extra_cflags : mali_cflags,
     version : pkg_version,
     name : name,
     description : 'Mali GPU User-Space Binary Driver Wrappers')
@@ -293,3 +287,9 @@ if not wrappers
 # Fixup wrappers
   meson.add_install_script('fixup_wrappers.sh', get_option('libdir'))
 endif
+
+if platform != 'x11'
+# Fixup EGL header
+  meson.add_install_script('fixup_nox11.sh',
+    get_option('includedir') / 'EGL' / 'eglplatform.h')
+endif