1 files changed, 33 insertions, 0 deletions
diff --git a/src/glx/apple/gen_gl_h.sh b/src/glx/apple/gen_gl_h.sh
new file mode 100755
index 0000000000..f10ddd0bfc
--- /dev/null
+++ b/src/glx/apple/gen_gl_h.sh
@@ -0,0 +1,33 @@
+#!/bin/bash
+
+INFILE=$1
+OUTFILE=$2
+
+generate_macros() {
+    grep gl.*ProcPtr /System/Library/Frameworks/OpenGL.framework/Headers/gl{,ext}.h | sed 's:^.*\(gl.*Ptr\).*$:\1:' | sort -u | perl -ne 'chomp($_); $s = "PFN".uc($_); $s =~ s/PROCPTR/PROC/; print "#define ".$_." ".$s."\n"'
+}
+
+generate_function_pointers() {
+    { 
+      echo "#define GL_GLEXT_FUNCTION_POINTERS 1"
+      echo "#define GL_GLEXT_LEGACY 1"
+      generate_macros
+      echo '#include "/System/Library/Frameworks/OpenGL.framework/Headers/gl.h"'
+    } | ${CC:-gcc} -E - | grep typedef.*PFN
+}
+
+cat ${INFILE} | while IFS= read LINE ; do
+  case $LINE in
+    "@CGL_MESA_COMPAT_MACROS@")
+      generate_macros
+    ;;
+    "@CGL_MESA_FUNCTION_POINTERS@")
+      if ! grep -q GL_GLEXT_PROTOTYPES /System/Library/Frameworks/OpenGL.framework/Headers/gl.h ; then
+        generate_function_pointers
+      fi
+    ;;
+    *)
+      printf "${LINE}\n"
+    ;;
+  esac
+done > ${OUTFILE}