added some comments and dokus

ax_check_qt.m4

@@ -75,19 +75,19 @@ AC_DEFUN([AX_CXX_QT_TOOLS], [
 
 AC_DEFUN([AX_CHECK_VALID_FLAG], [
   AC_MSG_CHECKING([m4_default([$2], [for valid flag in "$1"])])
-  save_cxxflags="$CXXFLAGS"
+  save_cppflags="$CPPFLAGS"
   newflag="no"
   for test_flag in $1; do
-    CXXFLAGS+=" ${test_flag}"
+    CPPFLAGS+=" ${test_flag}"
     AC_COMPILE_IFELSE([AC_LANG_PROGRAM()], [
       newflag="$test_flag"
-      AM_CXXFLAGS+=" ${test_flag}"
-      CXXFLAGS="$save_cxxflags"
+      CPPFLAGS="$save_cppflags"
+      CPPFLAGS+=" ${test_flag}"
       break;
     ])
-    CXXFLAGS="$save_cxxflags"
+    CPPFLAGS="$save_cppflags"
   done
-  AC_SUBST(AM_CXXFLAGS)
+  AC_SUBST(CPPFLAGS)
   AC_MSG_RESULT([$newflag])
 ])
 
@@ -100,16 +100,18 @@ AC_DEFUN([AX_CHECK_QT], [
   PKG_CHECK_MODULES([$1]5, [${qt_modules//Qt/Qt5}], [
     HAVE_$1=1
     AC_DEFINE([HAVE_$1])
-    AM_CPPFLAGS+=" ${[$1]5_CFLAGS}"
+    QTDIR=$(pkg-config --variable=prefix Qt5Core)
+    QT_PLUGIN_PATH=${QTDIR}/share/qt5/plugins
+    CPPFLAGS+=" ${[$1]5_CFLAGS}"
     MOC_FLAGS+=" -DHAVE_$1=1 ${[$1]5_CFLAGS}"
-    AM_CXXFLAGS+=" ${[$1]5_CFLAGS}"
+    CXXFLAGS+=" ${[$1]5_CFLAGS}"
     LIBS+=" ${[$1]5_LIBS}"
     PKG_REQUIREMENTS+=" ${qt_modules//Qt/Qt5}"
     if test -n "${qt_modules_optional}"; then
       PKG_CHECK_MODULES([$1]5_OPTIONAL, [${qt_modules_optional//Qt/Qt5}], [
-        AM_CPPFLAGS+=" ${[$1]5_OPTIONAL_CFLAGS}"
+        CPPFLAGS+=" ${[$1]5_OPTIONAL_CFLAGS}"
         MOC_FLAGS+=" ${[$1]5_OPTIONAL_CFLAGS}"
-        AM_CXXFLAGS+=" ${[$1]5_OPTIONAL_CFLAGS}"
+        CXXFLAGS+=" ${[$1]5_OPTIONAL_CFLAGS}"
         LIBS+=" ${[$1]5_OPTIONAL_LIBS}"
         PKG_REQUIREMENTS+=" ${qt_modules_optional//Qt/Qt5}"
       ], [
@@ -120,16 +122,18 @@ AC_DEFUN([AX_CHECK_QT], [
     PKG_CHECK_MODULES([$1], [${qt_modules}], [
       HAVE_$1=1
       AC_DEFINE([HAVE_$1])
-      AM_CPPFLAGS+=" ${$1_CFLAGS}"
+      QTDIR=$(pkg-config --variable=prefix QtCore)
+      QT_PLUGIN_PATH=${QTDIR}/share/qt/plugins
+      CPPFLAGS+=" ${$1_CFLAGS}"
       MOC_FLAGS+=" -DHAVE_$1=1 ${$1_CFLAGS}"
-      AM_CXXFLAGS+=" ${$1_CFLAGS}"
+      CXXFLAGS+=" ${$1_CFLAGS}"
       LIBS+=" ${$1_LIBS}"
       PKG_REQUIREMENTS+=" ${qt_modules}"
       if test -n "$3"; then
         PKG_CHECK_MODULES($1_OPTIONAL, [${qt_modules_optional}], [
-          AM_CPPFLAGS+=" ${$1_OPTIONAL_CFLAGS}"
+          CPPFLAGS+=" ${$1_OPTIONAL_CFLAGS}"
           MOC_FLAGS+=" ${$1_OPTIONAL_CFLAGS}"
-          AM_CXXFLAGS+=" ${$1_OPTIONAL_CFLAGS}"
+          CXXFLAGS+=" ${$1_OPTIONAL_CFLAGS}"
           LIBS+=" ${$1_OPTIONAL_LIBS}"
           PKG_REQUIREMENTS+=" ${qt_modules_optional}"
         ], [
@@ -140,11 +144,16 @@ AC_DEFUN([AX_CHECK_QT], [
   ])
   AM_CONDITIONAL(HAVE_$1, test $HAVE_$1 -eq 1)
   AX_CHECK_VALID_FLAG([-fPIC -fPIE], [position independent code flag])
-  AC_SUBST(AM_CPPFLAGS)
+  AC_SUBST(QTDIR)
+  AC_SUBST(QT_PLUGIN_PATH)
+  AC_SUBST(CPPFLAGS)
   AC_SUBST(MOC_FLAGS)
-  AC_SUBST(AM_CXXFLAGS)
+  AC_SUBST(CXXFLAGS)
   AC_SUBST(PKG_REQUIREMENTS)
   AX_ADDITIONAL_QT_RULES_HACK='
+
+LANGUAGE_FILE_BASE ?= translations
+
 ui_%.hxx: %.ui
 	$(UIC) -o [$][@] $<
 
@@ -152,9 +161,21 @@ moc_%.cxx: %.hxx
 	$(MOC) $(MOC_FLAGS) -o [$][@] $<
 
 qrc_%.cxx: %.qrc
-	$(RCC) -o [$][@] $<'
+	$(RCC) -o [$][@] -name ${<:%.qrc=%} $<
   AC_SUBST(AX_ADDITIONAL_QT_RULES_HACK)
-])
+
+#%.qrc: %
+#	cwd=$$(pwd) && cd $< && $(RCC) -project -o $${cwd}/[$][@]
+
+%.qm: %.ts
+	${LRELEASE} $< -qm [$][@]
+
+#%.ts: ${LANGUAGE_FILES}
+#	${LUPDATE} -no-obsolete \
+#	           -target-language ${@:${LANGUAGE_FILE_BASE}_%.ts=%} \
+#	           -ts [$][@] $<
+
+'])
 
 # SYNOPSIS
 #
@@ -202,5 +223,5 @@ AC_DEFUN([AX_REQUIRE_QT], [
 #     AX_QT_NO_KEYWORDS
 
 AC_DEFUN([AX_QT_NO_KEYWORDS], [
-  AM_CPPFLAGS+=" -DQT_NO_KEYWORDS"
+  CPPFLAGS+=" -DQT_NO_KEYWORDS"
 ])