https://github.com/gdraheim/zziplib/commit/4b2b33f379e508a41a9e43009db921866955a02f#diff-01635cf996d8145e5ff10b21b8f04bcc57377a750cb77d4107086dbdb2c67b05R307
--- a/zzip/CMakeLists.txt
+++ b/zzip/CMakeLists.txt
@@ -304,7 +304,7 @@ set(outdir ${CMAKE_CURRENT_BINARY_DIR})
 
 if(ZZIP_PKGCONFIG)
 install(FILES ${outdir}/zziplib.pc ${outdir}/zzipmmapped.pc ${outdir}/zzipfseeko.pc
-        DESTINATION "${CMAKE_INSTALL_DATADIR}/pkgconfig" )
+        DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig" )
 endif()
 
 install(FILES ${libzzip_HDRS} DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/zzip )