glcore: prepare for dynamic loading

glcore gets linked with -ldl, -lpthread for s3tc and glapi
xserver needs
        DLOPEN_LIBS - to dlopen the glcore dso
        LD_EXPORT_SYMBOLS_FLAG - to export symbols for glcore to use

the ld flag is added to kdrive only when GLX is enabled, the net overhead for
Xephyr is ~155KB, could be reduced with --dynamic-list.

configure.ac

@@ -848,6 +848,7 @@ if test "x$GLX" = xyes && ! test "x$MESA_SOURCE" = x; then
 	if test $? -ne 0; then
 		AC_MSG_ERROR([Failed to link Mesa source tree.  Please specify a proper path to Mesa sources, or disable GLX.])
 	fi
+	GLX_SYS_LIBS="$GLX_SYS_LIBS $DLOPEN_LIBS"
 else
         GLX=no
 fi
@@ -1969,7 +1970,7 @@ if test "$KDRIVE" = yes; then
     KDRIVE_LOCAL_LIBS="$DIX_LIB $KDRIVE_LIB $KDRIVE_STUB_LIB $CONFIG_LIB"
     KDRIVE_LOCAL_LIBS="$KDRIVE_LOCAL_LIBS $FB_LIB $MI_LIB $KDRIVE_PURE_LIBS"
     KDRIVE_LOCAL_LIBS="$KDRIVE_LOCAL_LIBS $KDRIVE_OS_LIB $OS_LIB"
-    KDRIVE_LIBS="$TSLIB_LIBS $KDRIVE_LOCAL_LIBS $XSERVER_SYS_LIBS"
+    KDRIVE_LIBS="$TSLIB_LIBS $KDRIVE_LOCAL_LIBS $XSERVER_SYS_LIBS $GLX_SYS_LIBS"
 
     # check if we can build Xephyr
     PKG_CHECK_MODULES(XEPHYR, $XEPHYR_REQUIRED_LIBS, [xephyr="yes"], [xephyr="no"])

hw/kdrive/ati/Makefile.am

@@ -58,6 +58,10 @@ ATI_LIBS =				\
 	$(DRI_LIBS)			\
 	@KDRIVE_LIBS@
 
+if GLX
+Xati_LDFLAGS = $(LD_EXPORT_SYMBOLS_FLAG)
+endif
+
 Xati_LDADD = \
 	$(ATI_LIBS)			\
 	@KDRIVE_LIBS@

hw/kdrive/chips/Makefile.am

@@ -20,6 +20,10 @@ CHIPS_LIBS =					 \
 	$(top_builddir)/hw/kdrive/vesa/libvesa.a \
 	@KDRIVE_LIBS@
 
+if GLX
+Xchips_LDFLAGS = $(LD_EXPORT_SYMBOLS_FLAG)
+endif
+
 Xchips_LDADD = \
 	$(CHIPS_LIBS)				\
 	@KDRIVE_LIBS@

hw/kdrive/ephyr/Makefile.am

@@ -67,6 +67,10 @@ libxephyr_a_CFLAGS = \
 Xephyr_SOURCES = \
 	ephyrinit.c
 
+if GLX
+Xephyr_LDFLAGS = $(LD_EXPORT_SYMBOLS_FLAG)
+endif
+
 Xephyr_LDADD = 						\
 	libxephyr.a					\
 	libxephyr-hostx.a			        \

hw/kdrive/epson/Makefile.am

@@ -20,6 +20,10 @@ EPSON_LIBS =					\
 	libepson.a 				\
 	@KDRIVE_LIBS@
 
+if GLX
+Xepson_LDFLAGS = $(LD_EXPORT_SYMBOLS_FLAG)
+endif
+
 Xepson_LDADD = \
 	$(EPSON_LIBS)			       \
 	@KDRIVE_LIBS@

hw/kdrive/fake/Makefile.am

@@ -16,6 +16,10 @@ libfake_a_SOURCES =	\
 Xfake_SOURCES = \
 	fakeinit.c
 
+if GLX
+Xfake_LDFLAGS = $(LD_EXPORT_SYMBOLS_FLAG)
+endif
+
 Xfake_LDADD = 						\
 	libfake.a					\
 	@KDRIVE_LIBS@					\

hw/kdrive/fbdev/Makefile.am

@@ -14,6 +14,10 @@ bin_PROGRAMS = Xfbdev
 Xfbdev_SOURCES = \
 	fbinit.c
 
+if GLX
+Xfbdev_LDFLAGS = $(LD_EXPORT_SYMBOLS_FLAG)
+endif
+
 Xfbdev_LDADD = 						\
 	libfbdev.a					\
 	@KDRIVE_LIBS@

hw/kdrive/i810/Makefile.am

@@ -23,6 +23,10 @@ I810_LIBS =						\
 	libi810.a 					\
 	@KDRIVE_LIBS@
 
+if GLX
+Xi810_LDFLAGS = $(LD_EXPORT_SYMBOLS_FLAG)
+endif
+
 Xi810_LDADD = \
 	$(I810_LIBS)					\
 	@KDRIVE_LIBS@

hw/kdrive/mach64/Makefile.am

@@ -27,6 +27,10 @@ MACH64_LIBS =						\
 	$(top_builddir)/hw/kdrive/vesa/libvesa.a        
 
 
+if GLX
+Xmach64_LDFLAGS = $(LD_EXPORT_SYMBOLS_FLAG)
+endif
+
 Xmach64_LDADD = 					\
 	$(MACH64_LIBS)					\
 	@KDRIVE_LIBS@

hw/kdrive/mga/Makefile.am

@@ -22,6 +22,10 @@ MGA_LIBS =						\
 	$(top_builddir)/hw/kdrive/vesa/libvesa.a	\
 	@KDRIVE_LIBS@
 
+if GLX
+Xmga_LDFLAGS = $(LD_EXPORT_SYMBOLS_FLAG)
+endif
+
 Xmga_LDADD = \
 	$(MGA_LIBS)					\
 	@KDRIVE_LIBS@

hw/kdrive/neomagic/Makefile.am

@@ -32,6 +32,10 @@ NEOMAGIC_LIBS =                 \
 	${VESA_LIBS}                \
 	@KDRIVE_LIBS@
 
+if GLX
+Xneomagic_LDFLAGS = $(LD_EXPORT_SYMBOLS_FLAG)
+endif
+
 Xneomagic_LDADD = \
 	$(NEOMAGIC_LIBS)            \
 	@KDRIVE_LIBS@               \

hw/kdrive/nvidia/Makefile.am

@@ -23,6 +23,10 @@ NVIDIA_LIBS =					\
 	$(top_builddir)/hw/kdrive/vesa/libvesa.a \
 	@KDRIVE_LIBS@
 
+if GLX
+Xnvidia_LDFLAGS = $(LD_EXPORT_SYMBOLS_FLAG)
+endif
+
 Xnvidia_LDADD = \
 	$(NVIDIA_LIBS)				\
 	@KDRIVE_LIBS@

hw/kdrive/pm2/Makefile.am

@@ -21,6 +21,10 @@ PM2_LIBS =					\
 	$(top_builddir)/hw/kdrive/vesa/libvesa.a \
 	@KDRIVE_LIBS@
 
+if GLX
+Xpm2_LDFLAGS = $(LD_EXPORT_SYMBOLS_FLAG)
+endif
+
 Xpm2_LDADD = \
 	$(PM2_LIBS)				\
 	@KDRIVE_LIBS@

hw/kdrive/r128/Makefile.am

@@ -20,6 +20,10 @@ R128_LIBS =					\
 	$(top_builddir)/hw/kdrive/vesa/libvesa.a \
 	@KDRIVE_LIBS@
 
+if GLX
+Xr128_LDFLAGS = $(LD_EXPORT_SYMBOLS_FLAG)
+endif
+
 Xr128_LDADD = \
 	$(R128_LIBS)				\
 	@KDRIVE_LIBS@

hw/kdrive/sdl/Makefile.am

@@ -7,6 +7,10 @@ bin_PROGRAMS = Xsdl
 
 Xsdl_SOURCES = sdl.c
 
+if GLX
+Xsdl_LDFLAGS = $(LD_EXPORT_SYMBOLS_FLAG)
+endif
+
 Xsdl_LDADD = \
 	@KDRIVE_LIBS@                                  \
 	@XSDL_LIBS@

hw/kdrive/sis300/Makefile.am

@@ -34,6 +34,10 @@ SIS_LIBS =				\
 	$(VESA_LIBS)			\
 	@KDRIVE_LIBS@
 
+if GLX
+Xsis_LDFLAGS = $(LD_EXPORT_SYMBOLS_FLAG)
+endif
+
 Xsis_LDADD = \
 	$(SIS_LIBS)				\
 	@KDRIVE_LIBS@                          \

hw/kdrive/smi/Makefile.am

@@ -25,6 +25,10 @@ SMI_LIBS =					\
 	$(top_builddir)/hw/kdrive/vesa/libvesa.a \
 	@KDRIVE_LIBS@
 
+if GLX
+Xsmi_LDFLAGS = $(LD_EXPORT_SYMBOLS_FLAG)
+endif
+
 Xsmi_LDADD = \
 	$(SMI_LIBS)				\
 	@KDRIVE_LIBS@

hw/kdrive/vesa/Makefile.am

@@ -19,6 +19,10 @@ libvesa_a_SOURCES = \
 Xvesa_SOURCES = \
 	vesainit.c
 
+if GLX
+Xvesa_LDFLAGS = $(LD_EXPORT_SYMBOLS_FLAG)
+endif
+
 Xvesa_LDADD = \
 	libvesa.a 				\
 	@KDRIVE_LIBS@

hw/kdrive/via/Makefile.am

@@ -21,6 +21,10 @@ VIA_LIBS =	\
 	libvia.a	\
 	$(top_builddir)/hw/kdrive/vesa/libvesa.a
 
+if GLX
+Xvia_LDFLAGS = $(LD_EXPORT_SYMBOLS_FLAG)
+endif
+
 Xvia_LDADD =						\
 	$(VIA_LIBS)					\
 	@KDRIVE_LIBS@