From 0f68032a7cebe740421e5de4586d13c99a8728ab Mon Sep 17 00:00:00 2001
From: Kristian Høgsberg <krh@bitplanet.net>
Date: Tue, 27 Apr 2010 13:42:33 -0400
Subject: configure.ac: Add options to enable GLES1/2 API support

---
 configs/autoconf.in                    |  1 +
 configure.ac                           | 31 +++++++++++++++++++++++++++++++
 src/mesa/Makefile                      |  1 +
 src/mesa/drivers/dri/Makefile.template |  1 +
 4 files changed, 34 insertions(+)

diff --git a/configs/autoconf.in b/configs/autoconf.in
index b6cc9b3b73..c89441b251 100644
--- a/configs/autoconf.in
+++ b/configs/autoconf.in
@@ -14,6 +14,7 @@ ARCH_FLAGS = @ARCH_FLAGS@
 ASM_FLAGS = @ASM_FLAGS@
 PIC_FLAGS = @PIC_FLAGS@
 DEFINES = @DEFINES@
+API_DEFINES = @API_DEFINES@
 CFLAGS = @CPPFLAGS@ @CFLAGS@ \
 	$(OPT_FLAGS) $(PIC_FLAGS) $(ARCH_FLAGS) $(ASM_FLAGS) $(DEFINES)
 CXXFLAGS = @CPPFLAGS@ @CXXFLAGS@ \
diff --git a/configure.ac b/configure.ac
index 0e77707433..abb655135f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -711,6 +711,37 @@ if test "x$with_dri_drivers" = x; then
     with_dri_drivers=no
 fi
 
+dnl Determine which APIs to support
+AC_ARG_ENABLE([opengl],
+    [AS_HELP_STRING([--disable-opengl],
+        [disable support for standard OpenGL API @<:@default=no@:>@])],
+    [enable_opengl="$enableval"],
+    [enable_opengl=yes])
+AC_ARG_ENABLE([gles1],
+    [AS_HELP_STRING([--enable-gles1],
+        [enable support for OpenGL ES 1.x API @<:@default=no@:>@])],
+    [enable_gles1="$enableval"],
+    [enable_gles1=no])
+AC_ARG_ENABLE([gles2],
+    [AS_HELP_STRING([--enable-gles2],
+        [enable support for OpenGL ES 2.x API @<:@default=no@:>@])],
+    [enable_gles2="$enableval"],
+    [enable_gles2=no])
+
+API_DEFINES=""
+if test "x$enable_opengl" = xno; then
+    API_DEFINES="$API_DEFINES -DFEATURE_GL=0"
+else
+    API_DEFINES="$API_DEFINES -DFEATURE_GL=1"
+fi
+if test "x$enable_gles1" = xyes; then
+    API_DEFINES="$API_DEFINES -DFEATURE_ES1=1"
+fi
+if test "x$enable_gles2" = xyes; then
+    API_DEFINES="$API_DEFINES -DFEATURE_ES2=1"
+fi
+AC_SUBST([API_DEFINES])
+
 dnl If $with_dri_drivers is yes, directories will be added through
 dnl platform checks
 DRI_DIRS=""
diff --git a/src/mesa/Makefile b/src/mesa/Makefile
index e4040881f1..44e091f240 100644
--- a/src/mesa/Makefile
+++ b/src/mesa/Makefile
@@ -16,6 +16,7 @@ include sources.mak
 .S.o:
 	$(CC) -c $(INCLUDE_DIRS) $(CFLAGS) $< -o $@
 
+CFLAGS += $(API_DEFINES)
 
 
 # Default: build dependencies, then asm_subdirs, GLSL built-in lib,
diff --git a/src/mesa/drivers/dri/Makefile.template b/src/mesa/drivers/dri/Makefile.template
index 4cdd51efee..4b9a0c1786 100644
--- a/src/mesa/drivers/dri/Makefile.template
+++ b/src/mesa/drivers/dri/Makefile.template
@@ -31,6 +31,7 @@ SHARED_INCLUDES = \
 	-I$(TOP)/src/egl/drivers/dri \
 	$(LIBDRM_CFLAGS)
 
+CFLAGS += $(API_DEFINES)
 
 ##### RULES #####
 
-- 
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