diff --git a/build.sunos64x64/squeak.cog.spur/build/mvm b/build.sunos64x64/squeak.cog.spur/build/mvm
index 806b409307..8fd3f19a3b 100755
--- a/build.sunos64x64/squeak.cog.spur/build/mvm
+++ b/build.sunos64x64/squeak.cog.spur/build/mvm
@@ -23,7 +23,8 @@ n|no|N|NO)	echo "ok but this isn't safe!!";;
 esac
 test -f plugins.int || (test -f ../plugins.int && cp -p ../plugins.int . || cp -p ../../plugins.int .)
 test -f plugins.ext || (test -f ../plugins.ext && cp -p ../plugins.ext . || cp -p ../../plugins.ext .)
-test -f config.h || ../../../platforms/unix/config/configure --without-npsqueak \
+test -f config.h || ../../../platforms/unix/config/configure x86_64-pc-solaris2.11\
+		--without-npsqueak \
 		--with-vmversion=5.0 \
 		--without-libtls \
 		--disable-dynamicopenssl \
@@ -31,6 +32,7 @@ test -f config.h || ../../../platforms/unix/config/configure --without-npsqueak
 	TARGET_ARCH="-m64" \
 	CFLAGS="$CFLAGS" \
 	LIBS="$LIBS" \
+	PKG_CONFIG_PATH=/usr/lib/64/pkgconfig \
 	LDFLAGS="$LDFLAGS"
 rm -f vm/sqUnixMain.o # nuke version info
 rm -rf ../../../products/$INSTALLDIR
diff --git a/build.sunos64x64/squeak.stack.spur/build/mvm b/build.sunos64x64/squeak.stack.spur/build/mvm
index 129e93fea7..3a3d0664c4 100755
--- a/build.sunos64x64/squeak.stack.spur/build/mvm
+++ b/build.sunos64x64/squeak.stack.spur/build/mvm
@@ -18,13 +18,14 @@ n|no|N|NO)	echo "ok but this isn't safe!!";;
 esac
 test -f plugins.int || (test -f ../plugins.int && cp -p ../plugins.int . || cp -p ../../plugins.int .)
 test -f plugins.ext || (test -f ../plugins.ext && cp -p ../plugins.ext . || cp -p ../../plugins.ext .)
-test -f config.h || ../../../platforms/unix/config/configure \
+test -f config.h || ../../../platforms/unix/config/configure x86_64-pc-solaris2.11 \
 		--with-vmversion=5.0 \
 		--without-libtls \
 		--disable-dynamicopenssl \
 	--with-src=spurstack64src --disable-cogit \
 	--without-vm-display-fbdev --without-npsqueak \
 	TARGET_ARCH="-m64" \
+	PKG_CONFIG_PATH=/usr/lib/64/pkgconfig \
 	CFLAGS="$OPT"
 rm -f vm/sqUnixMain.o # nuke version info
 rm -rf ../../../products/$INSTALLDIR
diff --git a/platforms/unix/config/make.cfg.in b/platforms/unix/config/make.cfg.in
index 0519fc9440..c7a6f43f05 100644
--- a/platforms/unix/config/make.cfg.in
+++ b/platforms/unix/config/make.cfg.in
@@ -95,6 +95,8 @@ X_CFLAGS=	@X_CFLAGS@
 X_INCLUDES=	@X_INCLUDES@
 X_LIBS=		@X_LIBS@
 
+UNICODE_PLUGIN_LIBS=	@UNICODE_PLUGIN_LIBS@
+UNICODE_PLUGIN_CFLAGS=	@UNICODE_PLUGIN_CFLAGS@
 
 INTERP=		@INTERP@
 
diff --git a/platforms/unix/plugins/UnicodePlugin/Makefile.inc b/platforms/unix/plugins/UnicodePlugin/Makefile.inc
index 02d554ad04..75776aabec 100644
--- a/platforms/unix/plugins/UnicodePlugin/Makefile.inc
+++ b/platforms/unix/plugins/UnicodePlugin/Makefile.inc
@@ -1,2 +1,3 @@
-XCPPFLAGS=	-I/usr/include/cairo -I/usr/include/pango-1.0 -I/usr/include/glib-2.0  -I/usr/lib/glib-2.0/include -I/usr/lib/arm-linux-gnueabihf/glib-2.0/include -I/usr/lib/i386-linux-gnu/glib-2.0/include
-XLDFLAGS= -lpangocairo-1.0 -lcairo -lpango-1.0 -lgobject-2.0 -lglib-2.0
+XCPPFLAGS=$(UNICODE_PLUGIN_CFLAGS)
+XLDFLAGS=$(UNICODE_PLUGIN_LIBS)
+
diff --git a/platforms/unix/plugins/UnicodePlugin/README.UnicodePlugin b/platforms/unix/plugins/UnicodePlugin/README.UnicodePlugin
index 0dce8726c2..ac456a9eb1 100755
--- a/platforms/unix/plugins/UnicodePlugin/README.UnicodePlugin
+++ b/platforms/unix/plugins/UnicodePlugin/README.UnicodePlugin
@@ -1 +1,20 @@
-In order to build the Unicode plugin on Linux, you'll need a collection of Pango, Cairo, and glib header and library files. These can often be found in the GTK+ development package in the package repository for your version of Linux.
+In order to build the Unicode plugin, you'll need a collection of Pango, Cairo, and glib header and library files. These can often be found in the GTK+ development package in the package repository for your operating system.
+
+The location of the header files can be a problem. 
+
+A possible approach is to use 'pkg-config' reducing the problem
+
+ # pkg-config --cflags glib-2.0
+
+For example a system may have:
+
+ -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include  
+
+while a different system (or a 64bit version of the same system) may have:
+
+ -I/usr/include/glib-2.0 -I/usr/lib/amd64/glib-2.0/include  
+
+Unfortunately pkg-config could perhaps have its own problems ...
+
+In that case configure can be ran with "UNICODE_PLUGIN_CFLAGS" manually set.
+
diff --git a/platforms/unix/plugins/UnicodePlugin/acinclude.m4 b/platforms/unix/plugins/UnicodePlugin/acinclude.m4
index 9995474b1a..3f280e6a32 100644
--- a/platforms/unix/plugins/UnicodePlugin/acinclude.m4
+++ b/platforms/unix/plugins/UnicodePlugin/acinclude.m4
@@ -1,12 +1,7 @@
-# -*- sh -*-
-
-AC_MSG_CHECKING([for PangoCairo libraries])
-save_CPPFLAGS="$CPPFLAGS"
-CPPFLAGS="-I/usr/include/cairo -I/usr/include/pango-1.0 -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -I/usr/lib/arm-linux-gnueabihf/glib-2.0/include -I/usr/lib/i386-linux-gnu/glib-2.0/include"
-AC_TRY_COMPILE([#include <pango/pangocairo.h>],[{}],[
-  AC_MSG_RESULT(yes)
-],[
-  AC_MSG_RESULT(no)
-  AC_PLUGIN_DISABLE
-])
-CPPFLAGS="$save_CPPFLAGS"
+# -*- sh -*-
+
+PKG_CHECK_MODULES(UNICODE_PLUGIN,[glib-2.0 pangocairo],,AC_PLUGIN_DISABLE)
+
+AC_SUBST(UNICODE_PLUGIN_CFLAGS)
+AC_SUBST(UNICODE_PLUGIN_LIBS)
+