File libev-3.9_pkg-config.patch of Package libev

Index: configure.ac
===================================================================
--- configure.ac.orig
+++ configure.ac
@@ -14,5 +14,5 @@ fi
 
 m4_include([libev.m4])
 
-AC_CONFIG_FILES([Makefile])
+AC_CONFIG_FILES([Makefile libev.pc])
 AC_OUTPUT
Index: Makefile.am
===================================================================
--- Makefile.am.orig
+++ Makefile.am
@@ -16,3 +16,5 @@ lib_LTLIBRARIES = libev.la
 libev_la_SOURCES = ev.c event.c
 libev_la_LDFLAGS = -version-info $(VERSION_INFO)
 
+pkgconfigdir = $(libdir)/pkgconfig
+pkgconfig_DATA = libev.pc
Index: libev.pc.in
===================================================================
--- /dev/null
+++ libev.pc.in
@@ -0,0 +1,10 @@
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@
+
+Name: libev
+Description: high-performance event loop
+Version: @VERSION@
+Libs: -L${libdir} -lev
+Cflags: -I${includedir}