see #5 - done for debian

src/libxml-cxx.pc.in

@@ -0,0 +1,11 @@
+prefix=@PACKAGENAME@
+exec_prefix=${prefix}
+libdir=${exec_prefix}/lib
+includedir=${prefix}/include
+
+Name: @PACKAGENAME@
+Description: C++ wrappers around pcsc-lite, cryptoki, openssh
+Version: @VERSION@
+Libs: -L${libdir} -lxml-cxx
+Libs.private: 
+Cflags: -I${includedir} 

src/makefile.am

@@ -5,10 +5,18 @@
 ##       1         2         3         4         5         6         7         8
 ## 45678901234567890123456789012345678901234567890123456789012345678901234567890
 
+pkgconfigdir = $(libdir)/pkgconfig
+pkgconfig_DATA = libxml-cxx.pc
+pkgconfig2dir = $(datarootdir)/pkgconfig
+pkgconfig2_DATA = $(pkgconfig_DATA)
+
+EXTRA_DIST = $(pkgconfig_DATA).in
+
 AM_CXXFLAGS += -I ${top_srcdir}/src
 lib_LTLIBRARIES = libxml-cxx.la
 nobase_include_HEADERS = xml-cxx/xml.hxx xml-cxx/any.hxx
 
 libxml_cxx_la_SOURCES = xml.cxx
 
+DISTCLEANFILES = $(pkgconfig_DATA)
 MAINTAINERCLEANFILES = makefile.in