diff --git a/.gitignore b/.gitignore
index 1e15ce5..b2854d9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -21,6 +21,7 @@ lcov.info
 win32ver.rc
 *.exe
 lib*dll.def
+lib*.pc
 
 # Local excludes in root directory
 /GNUmakefile
diff --git a/src/Makefile.shlib b/src/Makefile.shlib
index 4da2f10..d9728ba 100644
--- a/src/Makefile.shlib
+++ b/src/Makefile.shlib
@@ -87,6 +87,7 @@ shlib_bare	= lib$(NAME)$(DLSUFFIX)
 # Testing the soname variable is a reliable way to determine whether a
 # linkable library is being built.
 soname		= $(shlib_major)
+pkgconfigdir = $(libdir)/pkgconfig
 else
 # Naming convention for dynamically loadable modules
 shlib		= $(NAME)$(DLSUFFIX)
@@ -305,6 +306,7 @@ all-lib: all-shared-lib
 ifdef soname
 # no static library when building a dynamically loadable module
 all-lib: all-static-lib
+all-lib: lib$(NAME).pc
 endif
 
 all-static-lib: $(stlib)
@@ -388,6 +390,18 @@ $(stlib): $(shlib) $(DLL_DEFFILE) | $(SHLIB_PREREQS)
 endif # PORTNAME == cygwin || PORTNAME == win32
 
 
+%.pc: $(MAKEFILE_LIST)
+	echo 'Name: lib$(NAME)' >$@
+	echo 'Description: PostgreSQL lib$(NAME) library' >>$@
+	echo 'Url: http://www.postgresql.org/' >>$@
+	echo 'Version: $(VERSION)' >>$@
+	echo 'Requires: ' >>$@
+	echo 'Requires.private: $(PKG_CONFIG_REQUIRES_PRIVATE)' >>$@
+	echo 'Cflags: -I$(includedir)' >>$@
+	echo 'Libs: -L$(libdir) -l$(NAME)' >>$@
+	echo 'Libs.private: $(filter-out $(PKG_CONFIG_REQUIRES_PRIVATE:lib%=-l%),$(filter-out -L..%, $(SHLIB_LINK)))' >>$@
+
+
 # We need several not-quite-identical variants of .DEF files to build
 # DLLs for Windows.  These are made from the single source file
 # exports.txt.  Since we can't assume that Windows boxes will have
@@ -430,8 +444,12 @@ endif # SHLIB_EXPORTS
 install-lib: install-lib-shared
 ifdef soname
 install-lib: install-lib-static
+install-lib: install-lib-pc
 endif
 
+install-lib-pc: lib$(NAME).pc installdirs-lib
+	$(INSTALL_DATA) $< '$(DESTDIR)$(pkgconfigdir)/lib$(NAME).pc'
+
 install-lib-static: $(stlib) installdirs-lib
 	$(INSTALL_STLIB) $< '$(DESTDIR)$(libdir)/$(stlib)'
 ifeq ($(PORTNAME), darwin)
@@ -467,7 +485,7 @@ endif
 
 installdirs-lib:
 ifdef soname
-	$(MKDIR_P) '$(DESTDIR)$(libdir)'
+	$(MKDIR_P) '$(DESTDIR)$(libdir)' '$(DESTDIR)$(pkgconfigdir)'
 else
 	$(MKDIR_P) '$(DESTDIR)$(pkglibdir)'
 endif
@@ -483,7 +501,8 @@ ifdef soname
 	rm -f '$(DESTDIR)$(libdir)/$(stlib)'
 	rm -f '$(DESTDIR)$(libdir)/$(shlib_bare)' \
 	  '$(DESTDIR)$(libdir)/$(shlib_major)' \
-	  '$(DESTDIR)$(libdir)/$(shlib)'
+	  '$(DESTDIR)$(libdir)/$(shlib)' \
+	  '$(DESTDIR)$(pkgconfigdir)/lib$(NAME).pc'
 else # no soname
 	rm -f '$(DESTDIR)$(pkglibdir)/$(shlib)'
 endif # no soname
@@ -495,7 +514,7 @@ endif # no soname
 
 .PHONY: clean-lib
 clean-lib:
-	rm -f $(shlib) $(shlib_bare) $(shlib_major) $(stlib) $(exports_file)
+	rm -f $(shlib) $(shlib_bare) $(shlib_major) $(stlib) $(exports_file) lib$(NAME).pc
 
 ifneq (,$(SHLIB_EXPORTS))
 maintainer-clean-lib:
diff --git a/src/interfaces/ecpg/compatlib/Makefile b/src/interfaces/ecpg/compatlib/Makefile
index 00adcdb..6ae1493 100644
--- a/src/interfaces/ecpg/compatlib/Makefile
+++ b/src/interfaces/ecpg/compatlib/Makefile
@@ -18,10 +18,10 @@ SO_MAJOR_VERSION= 3
 SO_MINOR_VERSION= 5
 
 override CPPFLAGS := -I../include -I$(top_srcdir)/src/interfaces/ecpg/include \
-	-I$(libpq_srcdir) -I$(top_srcdir)/src/include/utils $(CPPFLAGS)
+	-I$(top_srcdir)/src/include/utils $(CPPFLAGS)
 override CFLAGS += $(PTHREAD_CFLAGS)
 
-SHLIB_LINK = -L../ecpglib -lecpg -L../pgtypeslib -lpgtypes $(libpq) \
+SHLIB_LINK = -L../ecpglib -lecpg -L../pgtypeslib -lpgtypes \
 	$(filter -lintl -lm, $(LIBS)) $(PTHREAD_LIBS)
 SHLIB_PREREQS = submake-ecpglib submake-pgtypeslib
 
@@ -32,6 +32,8 @@ LIBS := $(filter-out -lpgport, $(LIBS))
 
 OBJS= informix.o $(filter snprintf.o, $(LIBOBJS))
 
+PKG_CONFIG_REQUIRES_PRIVATE = libecpg libpgtypes
+
 all: all-lib
 
 .PHONY: submake-ecpglib submake-pgtypeslib
diff --git a/src/interfaces/ecpg/ecpglib/Makefile b/src/interfaces/ecpg/ecpglib/Makefile
index 59d9caf..90d4b3e 100644
--- a/src/interfaces/ecpg/ecpglib/Makefile
+++ b/src/interfaces/ecpg/ecpglib/Makefile
@@ -43,6 +43,8 @@ ifeq ($(PORTNAME), win32)
 SHLIB_LINK += -lshfolder
 endif
 
+PKG_CONFIG_REQUIRES_PRIVATE = libpq libpgtypes
+
 all: all-lib
 
 .PHONY: submake-pgtypeslib