patch libpcre.pc.in file

patch/pcre.patch

@@ -0,0 +1,18 @@
+--- a/libpcre.pc.in
++++ b/libpcre.pc.in
+@@ -1,6 +1,6 @@
+ # Package Information for pkg-config
+ 
+-prefix=@prefix@
++prefix=
+ exec_prefix=@exec_prefix@
+ libdir=@libdir@
+ includedir=@includedir@
+@@ -8,6 +8,6 @@
+ Name: libpcre
+ Description: PCRE - Perl compatible regular expressions C library with 8 bit character support
+ Version: @PACKAGE_VERSION@
+-Libs: -L${libdir} -lpcre
++Libs: ${libdir}/libpcre.a
+ Libs.private: @PTHREAD_CFLAGS@ @PTHREAD_LIBS@
+ Cflags: -I${includedir} @PCRE_STATIC_CFLAG@