diff --git a/opengl/libs/tools/enumextract.sh b/opengl/libs/tools/enumextract.sh
deleted file mode 100644
index 5707302..0000000
--- a/opengl/libs/tools/enumextract.sh
+++ /dev/null
@@ -1,32 +0,0 @@
-#!/bin/sh
-
-awk '
-/^#define GL_/ {
-    names[count] = $2;
-    values[count] = $3;
-    sort[count] = $3 + 0;
-    count++;
-}
-END {
-    for (i = 1; i < count; i++) {
-        for (j = 0; j < i; j++) {
-            if (sort[i] < sort[j]) {
-                tn = names[i];
-                tv = values[i];
-                ts = sort[i];
-                names[i] = names[j];
-                values[i] = values[j];
-                sort[i] = sort[j];
-                names[j] = tn;
-                values[j] = tv;
-                sort[j] = ts;
-            }
-        }
-    }
- 
-    for (i = 0; i < count; i++) {
-        printf("GLENUM(%s, %s)\n", names[i], values[i]);
-    }
-}
-' < $1
-
diff --git a/opengl/libs/tools/genfiles b/opengl/libs/tools/genfiles
index 107768b..120cb4b 100755
--- a/opengl/libs/tools/genfiles
+++ b/opengl/libs/tools/genfiles
@@ -14,7 +14,20 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-./glapigen ../../include/GLES/gl.h > ../GLES_CM/gl_api.in 
-./glentrygen ../../include/GLES/gl.h > ../gl_entries.in 
-./glapigen ../../include/GLES/glext.h > ../GLES_CM/glext_api.in 
-./glentrygen ../../include/GLES/glext.h > ../glext_entries.in 
+./glapigen ../../include/GLES/gl.h      > ../GLES_CM/gl_api.in
+./glapigen ../../include/GLES/glext.h   > ../GLES_CM/glext_api.in
+./glapigen ../../include/GLES2/gl2.h    > ../GLES2/gl2_api.in
+./glapigen ../../include/GLES2/gl2ext.h > ../GLES2/gl2ext_api.in
+
+./glentrygen ../../include/GLES/gl.h      > /tmp/gl_entries.in
+./glentrygen ../../include/GLES/glext.h   > /tmp/glext_entries.in
+./glentrygen ../../include/GLES2/gl2.h    > /tmp/gl2_entries.in
+./glentrygen ../../include/GLES2/gl2ext.h > /tmp/gl2ext_entries.in
+
+cat /tmp/gl_entries.in \
+    /tmp/glext_entries.in \
+    /tmp/gl2_entries.in \
+    /tmp/gl2ext_entries.in \
+        | sort -t, -k2 \
+        | awk -F, '!_[$2]++' \
+            > ../entries.in
diff --git a/opengl/libs/tools/glapigen b/opengl/libs/tools/glapigen
index a2c3a7b..bd8dda3 100755
--- a/opengl/libs/tools/glapigen
+++ b/opengl/libs/tools/glapigen
@@ -16,16 +16,23 @@
 
 use strict;
 
+sub rtrim($)
+{
+    my $string = shift;
+    $string =~ s/\s+$//;
+    return $string;
+}
+
 while (my $line = <>) {
   next if $line =~ /^\//;
   next if $line =~ /^#/;
   next if $line =~ /^\s*$/;
-  if ($line !~ /^GL_API\s+(.+)\s+GL_APIENTRY\s+([\w]+)\s*\(([^\)]+)\);/) {
+  if ($line !~ /^GL_API(CALL)?\s+(.+)\s+GL_APIENTRY\s+([\w]+)\s*\(([^\)]+)\);/) {
     next;
   }
-  my $type = $1;
-  my $name = $2;
-  my $args = $3;
+  my $type = rtrim($2);
+  my $name = $3;
+  my $args = $4;
 
   #printf("%s", $line);
   
diff --git a/opengl/libs/tools/glentrygen b/opengl/libs/tools/glentrygen
index 5e0f7b6..170f041 100755
--- a/opengl/libs/tools/glentrygen
+++ b/opengl/libs/tools/glentrygen
@@ -16,16 +16,23 @@
 
 use strict;
 
+sub rtrim($)
+{
+    my $string = shift;
+    $string =~ s/\s+$//;
+    return $string;
+}
+
 while (my $line = <>) {
   next if $line =~ /^\//;
   next if $line =~ /^#/;
   next if $line =~ /^\s*$/;
-  if ($line !~ /^GL_API\s+(.+)\s+GL_APIENTRY\s+([\w]+)\s*\(([^\)]+)\);/) {
+  if ($line !~ /^GL_API(CALL)?\s+(.+)\s+GL_APIENTRY\s+([\w]+)\s*\(([^\)]+)\);/) {
     next;
   }
-  my $type = $1;
-  my $name = $2;
-  my $args = $3;
+  my $type = rtrim($2);
+  my $name = $3;
+  my $args = $4;
 
   printf("GL_ENTRY(%s, %s, %s)\n", $type, $name, $args);
 }