Solaris backend

Closes #177

Signed-off-by: Nathan Hjelm <hjelmn@me.com>
diff --git a/libusb-1.0.pc.in b/libusb-1.0.pc.in
index aa023b3..4aba609 100644
--- a/libusb-1.0.pc.in
+++ b/libusb-1.0.pc.in
@@ -4,7 +4,7 @@
 includedir=@includedir@
 
 Name: libusb-1.0
-Description: C API for USB device access from Linux, Mac OS X, Windows and OpenBSD/NetBSD userspace
+Description: C API for USB device access from Linux, Mac OS X, Windows, OpenBSD/NetBSD and Solaris userspace
 Version: @VERSION@
 Libs: -L${libdir} -lusb-1.0
 Libs.private: @LIBS@