move -std=c++11 from CXX to new CXXSTD

The hack introduced in aa91826f is replaced with a hopefully better
working "proper" solution with a new variable just for the standard we
use everywhere we use CXXFLAGS.

Git-Dch: Ignore

buildlib/environment.mak.in

@@ -8,7 +8,8 @@ PACKAGE_MAIL = @PACKAGE_MAIL@
 # C++ compiler options
 CC = @CC@
 CPPFLAGS+= @CPPFLAGS@ @DEFS@ -D_REENTRANT -D_FORTIFY_SOURCE=2
-CXX = @CXX@ -std=c++11
+CXX = @CXX@
+CXXSTD = -std=c++11
 CXXFLAGS+= @CXXFLAGS@ -Wall -Wextra
 CXXFLAGS+= -Wcast-align -Wlogical-op -Wredundant-decls -Wmissing-declarations -Wunsafe-loop-optimizations
 CXXFLAGS+= -Wctor-dtor-privacy -Wdisabled-optimization -Winit-self -Wmissing-include-dirs -Wnoexcept -Wsign-promo -Wundef

buildlib/library.mak

@@ -58,7 +58,7 @@ $($(LOCAL)-VERSIONSCRIPT):
 $(LIB)/lib$(LIBRARY).so.$(MAJOR).$(MINOR): $($(LOCAL)-HEADERS) $($(LOCAL)-OBJS) $(LIBRARYDEPENDS) $($(LOCAL)-VERSIONSCRIPT)
 	-rm -f $(LIB)/lib$($(@F)-LIBRARY)*.so* 2> /dev/null
 	echo Building shared library $@
-	$(CXX) $(CXXFLAGS) $(LDFLAGS) -Wl,--version-script=$($(@F)-VERSIONSCRIPT) $(PICFLAGS) $(LFLAGS) $(LFLAGS_SO)\
+	$(CXX) $(CXXSTD) $(CXXFLAGS) $(LDFLAGS) -Wl,--version-script=$($(@F)-VERSIONSCRIPT) $(PICFLAGS) $(LFLAGS) $(LFLAGS_SO)\
 	   -o $@ $(SONAME_MAGIC)$($(@F)-SONAME) -shared \
 	   $(filter %.opic,$^) \
 	   $($(@F)-SLIBS) 
@@ -67,7 +67,7 @@ $(LIB)/lib$(LIBRARY).so.$(MAJOR).$(MINOR): $($(LOCAL)-HEADERS) $($(LOCAL)-OBJS)
 vpath %.cc $(SUBDIRS)
 $(OBJ)/%.opic: %.cc $(LIBRARYDEPENDS)
 	echo Compiling $< to $@
-	$(CXX) -c $(INLINEDEPFLAG) $(CPPFLAGS) $(CXXFLAGS) $(PICFLAGS) -o $@ $(abspath $<)
+	$(CXX) -c $(INLINEDEPFLAG) $(CPPFLAGS) $(CXXSTD) $(CXXFLAGS) $(PICFLAGS) -o $@ $(abspath $<)
 	$(DoDep)
 
 # Include the dependencies that are available

buildlib/program.mak

@@ -44,13 +44,13 @@ $(PROGRAM): $($(LOCAL)-BIN)
 # The binary build rule
 $($(LOCAL)-BIN): $($(LOCAL)-OBJS) $($(LOCAL)-MKS)
 	echo Building program $@
-	$(CXX) $(CXXFLAGS) $(LDFLAGS) $(LFLAGS) -o $@ $(filter %.o,$^) $($(@F)-SLIBS) $(LEFLAGS)
+	$(CXX) $(CXXSTD) $(CXXFLAGS) $(LDFLAGS) $(LFLAGS) -o $@ $(filter %.o,$^) $($(@F)-SLIBS) $(LEFLAGS)
 
 # Compilation rules
 vpath %.cc $(SUBDIRS)
 $(OBJ)/%.o: %.cc
 	echo Compiling $< to $@
-	$(CXX) -c $(INLINEDEPFLAG) $(CPPFLAGS) $(CXXFLAGS) -o $@ $(abspath $<)
+	$(CXX) -c $(INLINEDEPFLAG) $(CPPFLAGS) $(CXXSTD) $(CXXFLAGS) -o $@ $(abspath $<)
 	$(DoDep)
 
 # Include the dependencies that are available

buildlib/python.mak

@@ -39,7 +39,7 @@ ifndef ONLYSTATICLIBS
 $(LIB)/$(MODULE)module.so: $($(LOCAL)-OBJS)
 	-rm -f $(LIB)/$($(@F)-MODULE)module.so* 2> /dev/null
 	echo Building shared Python module $@
-	$(CXX) $(CXXFLAGS) $(LDFLAGS) $(PICFLAGS) $(LFLAGS) $(LFLAGS_SO)\
+	$(CXX) $(CXXSTD) $(CXXFLAGS) $(LDFLAGS) $(PICFLAGS) $(LFLAGS) $(LFLAGS_SO)\
 	   -o $@ -shared \
 	   $(filter %.opic,$^) \
 	   $($(@F)-SLIBS) $(PYTHONLIB)
@@ -58,7 +58,7 @@ endif  # ifdef PYTHONLIB
 vpath %.cc $(SUBDIRS)
 $(OBJ)/%.opic: %.cc
 	echo Compiling $< to $@
-	$(CXX) -c $(INLINEDEPFLAG) $(CPPFLAGS) $(CXXFLAGS) $(PICFLAGS) -o $@ $(abspath $<)
+	$(CXX) -c $(INLINEDEPFLAG) $(CPPFLAGS) $(CXXSTD) $(CXXFLAGS) $(PICFLAGS) -o $@ $(abspath $<)
 	$(DoDep)
 
 # Include the dependencies that are available

buildlib/staticlibrary.mak

@@ -50,7 +50,7 @@ endif
 vpath %.cc $(SUBDIRS)
 $(OBJ)/%.o: %.cc
 	echo Compiling $< to $@
-	$(CXX) -c $(INLINEDEPFLAG) $(CPPFLAGS) $(CXXFLAGS) -o $@ $(abspath $<)
+	$(CXX) -c $(INLINEDEPFLAG) $(CPPFLAGS) $(CXXSTD) $(CXXFLAGS) -o $@ $(abspath $<)
 	$(DoDep)
 
 # Include the dependencies that are available