fix pc file

package/taglib/patches/patch-taglib_pc_cmake

@@ -5,9 +5,9 @@
 -exec_prefix=${CMAKE_INSTALL_PREFIX}
 -libdir=${LIB_INSTALL_DIR}
 -includedir=${INCLUDE_INSTALL_DIR}
-+exec_prefix=\${prefix}
++exec_prefix=$prefix
-+libdir=\${prefix}/lib
++libdir=$prefix/lib
-+includedir=\${prefix}/include
++includedir=$prefix/include
  
  Name: TagLib
  Description: Audio meta-data library
@@ -15,5 +15,5 @@
  Version: ${TAGLIB_LIB_MAJOR_VERSION}.${TAGLIB_LIB_MINOR_VERSION}.${TAGLIB_LIB_PATCH_VERSION}
 -Libs: -L${LIB_INSTALL_DIR} -ltag
 -Cflags: -I${INCLUDE_INSTALL_DIR}/taglib 
-+Libs: -L\${libdir} -ltag
++Libs: -ltag
-+Cflags: -I\${includedir}/taglib 
++Cflags: