Build: fix #865 yet again

It appears that the symmetry changes of setting CC and CFLAGS correctly
for C code compilation in commit 104f02f broke things for people using
some other version of setuptools which uses those vars instead of
CXX and CXXFLAGS when compiling C++ code. In order to make this work
everywhere, set _both_ sets of variables as required for C++ compilation.
No C code is compiled by the python binding module anyway.

diff --git a/Makefile.am b/Makefile.am
index 8114f660dc921b5ac5f6d58916482b1b15017519..48285ddc44c53196ce20a05031719cd57ad68dc1 100644 (file)
--- a/Makefile.am
+++ b/Makefile.am
@@ -648,7 +648,7 @@ PDIR = bindings/python
 PDOC_START = bindings/python/sigrok/core/doc_start.i
 PDOC_END = bindings/python/sigrok/core/doc_end.i
 
-setup_vars = VERSION='$(PACKAGE_VERSION)' CC='$(CC)' CXX='$(CXX)' CFLAGS='$(CFLAGS) $(SR_WXXFLAGS) $(PYSIGROK_CFLAGS)' CXXFLAGS='$(CXXFLAGS) $(SR_WXXFLAGS) $(PYSIGROK_CFLAGS)' LDADD='$(PYSIGROK_LIBS)'
+setup_vars = VERSION='$(PACKAGE_VERSION)' CC='$(CXX)' CXX='$(CXX)' CFLAGS='$(CXXFLAGS) $(SR_WXXFLAGS) $(PYSIGROK_CFLAGS)' CXXFLAGS='$(CXXFLAGS) $(SR_WXXFLAGS) $(PYSIGROK_CFLAGS)' LDADD='$(PYSIGROK_LIBS)'
 setup_quiet = --quiet
 setup_py = $(PYTHON) $(srcdir)/$(PDIR)/setup.py $(setup_vars) $(setup_quiet)