Create dix/libXpdix.la for Xprint-specific build of libdix.la

(cherry picked from commit 4e2c6dbabdbbaaca213fd08edd422de15d0900cc)

required because of commit 7c0709a736,
which made requestingClient in dix specific to Xprint only.
Add to XPRINT_LIBS in hw/xprint/Makefile.am in front of
$(XSERVER_LIBS) to override definitions in libdix.la for standard xservers.

Follows 571206832d (providing -DXPRINT
to xprint subdirs).

Note it may be possible to restructure the code so that
requestingClient is stored elsewhere than in dix. See discussions
following http://lists.freedesktop.org/archives/xorg/2008-March/033844.html
If this is done it may be possible to revert this commit (if not 571206...).
(cherry picked from commit 966ae1781f)

dix/Makefile.am

@@ -1,4 +1,10 @@
-noinst_LTLIBRARIES = libdix.la libxpstubs.la
+standard_dix_libs = libdix.la libxpstubs.la
+
+if XPRINT
+noinst_LTLIBRARIES = $(standard_dix_libs) libXpdix.la
+else
+noinst_LTLIBRARIES = $(standard_dix_libs)
+endif
 
 AM_CFLAGS = $(DIX_CFLAGS) \
 	-DVENDOR_NAME=\""@VENDOR_NAME@"\" \
@@ -39,7 +45,11 @@ libdix_la_SOURCES = 	\
 libxpstubs_la_SOURCES =	\
 	xpstubs.c
 
-INCLUDES = -I$(top_srcdir)/Xprint
+if XPRINT
+libXpdix_la_SOURCES = $(libdix_la_SOURCES)
+libXpdix_la_CPPFLAGS = -I$(top_srcdir)/hw/xprint
+libXpdix_la_CFLAGS = $(AM_CFLAGS) $(XPRINT_CFLAGS)
+endif
 
 EXTRA_DIST = buildatoms BuiltInAtoms CHANGES Xserver.d Xserver-dtrace.h.in
 

hw/xprint/Makefile.am

@@ -17,6 +17,7 @@ XPRINT_LIBS = \
 	pcl-mono/libpcl.la \
 	$(top_builddir)/fb/libfb.la \
 	$(top_builddir)/render/librender.la \
+	$(top_builddir)/dix/libXpdix.la \
 	$(XSERVER_LIBS) \
 	$(top_builddir)/Xext/libXext.la \
 	$(top_builddir)/xkb/libxkb.la \