Fix compile issue

libsigrokdecode4DSL/libsigrokdecode.pc.in

@@ -0,0 +1,18 @@
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@
+datarootdir=@datarootdir@
+datadir=@datadir@
+pkgdatadir=${datadir}/@PACKAGE_TARNAME@
+decodersdir=${pkgdatadir}/decoders
+
+Name: libsigrokdecode
+Description: Protocol decoder library of the sigrok logic analyzer software
+URL: http://www.sigrok.org
+Requires: glib-2.0
+Requires.private: @SRD_PKGLIBS@
+Version: @SRD_PACKAGE_VERSION@
+Libs: -L${libdir} -lsigrokdecode
+Libs.private: @SRD_EXTRA_LIBS@
+Cflags: -I${includedir}