need variables; refs #41

ax_check_qt.m4

@@ -62,10 +62,16 @@ AC_DEFUN([AX_CXX_CHECK_QT], [
   PKG_CHECK_MODULES([$1], [${qt_modules//Qt/Qt5}], [
     HAVE_$1=1
     AC_DEFINE([HAVE_$1])
+    CPPFLAGS+=" ${$1_CFLAGS}"
+    CXXFLAGS+=" ${$1_CFLAGS}"
+    LIBS+=" ${$1_LIBS}"
   ], [
     PKG_CHECK_MODULES([$1], [${qt_modules}], [
       HAVE_$1=1
       AC_DEFINE([HAVE_$1])
+      CPPFLAGS+=" ${$1_CFLAGS}"
+      CXXFLAGS+=" ${$1_CFLAGS}"
+      LIBS+=" ${$1_LIBS}"
     ])
   ])
   AM_CONDITIONAL(HAVE_$1, test $HAVE_$1 -eq 1)

configure.in

@@ -117,6 +117,9 @@ case $host in
 esac
 AX_CXX_CHECK_QT([QT], [Qt5Core Qt5Gui Qt5Widgets Qt5Network])
 AC_ARG_VAR(LUPDATE_ARGS, [arguments for qt lupdate command, e.g. -no-obsolete])
+if test $HAVE_$1 -eq 1; then
+  CPPFLAGS+=" -DQT_NETWORK_LIB"
+fi
 
 AC_ARG_ENABLE(pedantic,
   [AS_HELP_STRING([--enable-pedantic],