--- mkspecs/freebsd-clang/qmake.conf.orig	2019-04-06 15:03:34 UTC
+++ mkspecs/freebsd-clang/qmake.conf
@@ -7,9 +7,9 @@ QMAKE_PLATFORM          = freebsd
 
 include(../common/bsd/bsd.conf)
 
-# Addon software goes into /usr/local on FreeBSD, by default we will look there
-QMAKE_INCDIR_POST       = /usr/local/include
-QMAKE_LIBDIR_POST       = /usr/local/lib
+# Addon software goes into %%LOCALBASE%% on FreeBSD, by default we will look there
+QMAKE_INCDIR_POST       = %%LOCALBASE%%/include
+QMAKE_LIBDIR_POST       = %%LOCALBASE%%/lib
 
 QMAKE_LFLAGS_NOUNDEF    = -Wl,--no-undefined