Fix make distcheck.

Well, not quite.  One of the regression tests is failing with
GLXBadFBConfig in that build.  Not sure why.

Makefile.am

@@ -18,7 +18,7 @@
 #  IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 #  CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-SUBDIRS = src
+SUBDIRS = include/epoxy src
 
 if HAVE_X11
 SUBDIRS += test

configure.ac

@@ -69,6 +69,7 @@ PKG_CHECK_MODULES(GL, [gl], [gl=yes], [gl=no])
 AC_CONFIG_FILES([
                 epoxy.pc
                 Makefile
+                include/epoxy/Makefile
                 src/Makefile
                 test/Makefile
 ])

include/epoxy/Makefile.am

@@ -0,0 +1,30 @@
+#  Copyright 2005 Adam Jackson.
+#
+#  Permission is hereby granted, free of charge, to any person obtaining a
+#  copy of this software and associated documentation files (the "Software"),
+#  to deal in the Software without restriction, including without limitation
+#  on the rights to use, copy, modify, merge, publish, distribute, sub
+#  license, and/or sell copies of the Software, and to permit persons to whom
+#  the Software is furnished to do so, subject to the following conditions:
+#
+#  The above copyright notice and this permission notice (including the next
+#  paragraph) shall be included in all copies or substantial portions of the
+#  Software.
+#
+#  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+#  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+#  FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
+#  ADAM JACKSON BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+#  IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+#  CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+epoxyincludedir = $(includedir)/epoxy
+
+epoxyinclude_HEADERS = \
+	gl.h \
+        $(EGL_INCLUDES) \
+        $(GLX_INCLUDES) \
+	$()
+
+EGL_INCLUDES = egl.h
+GLX_INCLUDES = glx.h

src/Makefile.am

@@ -29,23 +29,8 @@ epoxyincludedir = $(includedir)/epoxy
 lib_LTLIBRARIES = libepoxy.la
 
 epoxyinclude_DATA = \
-	$(GL_INCLUDES) \
-	$(GLX_INCLUDES) \
-	$(EGL_INCLUDES) \
-	$()
-
-GL_INCLUDES = \
-	../include/epoxy/gl.h \
 	$(GENERATED_GL_INCLUDES) \
-	$()
-
-GLX_INCLUDES = \
-	../include/epoxy/glx.h \
 	$(GENERATED_GLX_INCLUDES) \
-	$()
-
-EGL_INCLUDES = \
-	../include/epoxy/egl.h \
 	$(GENERATED_EGL_INCLUDES) \
 	$()
 
@@ -108,9 +93,7 @@ $(GENERATED_GL_SOURCE): $(srcdir)/gen_dispatch.py $(top_srcdir)/registry/gl.xml
 	$(AM_V_GEN)$(PYTHON) $(srcdir)/gen_dispatch.py --dir $(top_builddir) $(top_srcdir)/registry/gl.xml
 
 $(GENERATED_GLX_SOURCE): $(srcdir)/gen_dispatch.py $(top_srcdir)/registry/glx.xml
-	$(MKDIR_P) $(top_builddir)/include/epoxy
 	$(AM_V_GEN)$(PYTHON) $(srcdir)/gen_dispatch.py --dir $(top_builddir) $(top_srcdir)/registry/glx.xml
 
 $(GENERATED_EGL_SOURCE): $(srcdir)/gen_dispatch.py $(top_srcdir)/registry/egl.xml
-	$(MKDIR_P) $(top_builddir)/include/epoxy
 	$(AM_V_GEN)$(PYTHON) $(srcdir)/gen_dispatch.py --dir $(top_builddir) $(top_srcdir)/registry/egl.xml