diff -ub -Nr libev-4.15.org/configure.ac libev-4.15/configure.ac
--- libev-4.15.org/configure.ac	2013-03-01 15:10:27.000000000 +0400
+++ libev-4.15/configure.ac	2013-12-21 09:18:59.000000000 +0400
@@ -1,10 +1,11 @@
-AC_INIT
+AC_INIT([libev],[4.15])
 
 orig_CFLAGS="$CFLAGS"
 
 AC_CONFIG_SRCDIR([ev_epoll.c])
+AC_CONFIG_MACRO_DIR([m4])
 
-AM_INIT_AUTOMAKE(libev,4.15) dnl also update ev.h!
+AM_INIT_AUTOMAKE
 AC_CONFIG_HEADERS([config.h])
 AM_MAINTAINER_MODE
 
@@ -22,5 +23,5 @@
 
 m4_include([libev.m4])
 
-AC_CONFIG_FILES([Makefile])
+AC_CONFIG_FILES([Makefile libev.pc])
 AC_OUTPUT
diff -ub -Nr libev-4.15.org/libev.pc.in libev-4.15/libev.pc.in
--- libev-4.15.org/libev.pc.in	1970-01-01 03:00:00.000000000 +0300
+++ libev-4.15/libev.pc.in	2013-12-21 09:20:25.000000000 +0400
@@ -0,0 +1,11 @@
+prefix=@prefix@
+exec_prefix=@prefix@
+libdir=@libdir@
+includedir=@includedir@
+
+Name: libev
+Description: A high-performance event loop/event model with lots of features
+Version: @VERSION@
+Libs: -L${libdir} -lev
+Libs.private:
+Cflags: -I${includedir}
diff -ub -Nr libev-4.15.org/Makefile.am libev-4.15/Makefile.am
--- libev-4.15.org/Makefile.am	2012-05-29 19:20:25.000000000 +0400
+++ libev-4.15/Makefile.am	2013-12-21 09:20:25.000000000 +0400
@@ -16,5 +16,8 @@
 libev_la_SOURCES = ev.c event.c
 libev_la_LDFLAGS = -version-info $(VERSION_INFO)
 
+pkgconfigdir = $(libdir)/pkgconfig
+pkgconfig_DATA = libev.pc
+
 ev.3: ev.pod
 	pod2man -n LIBEV -r "libev-$(VERSION)" -c "libev - high performance full featured event loop" -s3 <$< >$@