The first hunk puts the catch-all { *; } first in version scripts
so it has lowest priority when a symbol matches multiple patterns.

The second hunk fixes the install location of the pkconfig files:
  FreeBSD installs pkgconfig files to $LOCALBASE/libdata/pkgconfig
  qmake uses QMAKE_PKGCONFIG_DESTDIR as relative path to $$QT_LIBDIR.
  As this is now '${PREFIX}/lib/qt5' we need to go up two levels.

The third hunk stops qmake from generating la files.

--- mkspecs/features/qt_module.prf.orig	2018-12-03 11:15:26 UTC
+++ mkspecs/features/qt_module.prf
@@ -217,17 +217,18 @@ android: CONFIG += qt_android_deps no_linker_version_s
     internal_module {
         verscript_content = "Qt_$${QT_MAJOR_VERSION}_PRIVATE_API { *; };"
     } else {
-        verscript_content = "Qt_$${QT_MAJOR_VERSION}_PRIVATE_API {" \
-                            "    qt_private_api_tag*;"
+        current = Qt_$$QT_MAJOR_VERSION
+        verscript_content = "$$current { *; };"
 
+        verscript_content += "Qt_$${QT_MAJOR_VERSION}_PRIVATE_API {" \
+                             "    qt_private_api_tag*;"
+
         private_api_headers = $$SYNCQT.PRIVATE_HEADER_FILES $$SYNCQT.QPA_HEADER_FILES
 
         for(header, private_api_headers): \
             verscript_content += "    @FILE:$$header@"
         verscript_content += "};"
 
-        current = Qt_$$QT_MAJOR_VERSION
-        verscript_content += "$$current { *; };"
         isEmpty(QT_NAMESPACE): tag_symbol = qt_version_tag
         else:                  tag_symbol = qt_version_tag_$$QT_NAMESPACE
 
@@ -266,7 +267,7 @@ load(qt_targets)
 # this builds on top of qt_common
 !internal_module:if(unix|mingw) {
     CONFIG += create_pc
-    QMAKE_PKGCONFIG_DESTDIR = pkgconfig
+    QMAKE_PKGCONFIG_DESTDIR = ../../libdata/pkgconfig
     host_build: \
         QMAKE_PKGCONFIG_LIBDIR = $$[QT_HOST_LIBS]
     else: \
@@ -291,7 +292,6 @@ load(qt_targets)
     QMAKE_PKGCONFIG_INSTALL_REPLACE += pclib_replace
 }
 !lib_bundle:unix {
-    CONFIG += create_libtool
     host_build: \
         QMAKE_LIBTOOL_LIBDIR = $$[QT_HOST_LIBS]
     else: \