tools/python: corrently use LDFLAGS and CFLAGS

It is incorrect to add the LDFLAGS to the CFLAGS, and some compilers will
error out if linker flags are passed when creating object files. Fix this by
properly passing CFLAGS and LDFLAGS, instead of putting everything in
CFLAGS.

Signed-off-by: Roger Pau Monné <roger.pau@citrix.com>
Reviewed-by: Doug Goldstein <cardoe@cardoe.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
Release-acked-by: Wei Liu <wei.liu2@citrix.com>

tools/python/Makefile

@@ -4,7 +4,8 @@ include $(XEN_ROOT)/tools/Rules.mk
 .PHONY: all
 all: build
 
-PY_CFLAGS = $(CFLAGS) $(PY_NOOPT_CFLAGS) $(LDFLAGS) $(APPEND_LDFLAGS)
+PY_CFLAGS = $(CFLAGS) $(PY_NOOPT_CFLAGS)
+PY_LDFLAGS = $(LDFLAGS) $(APPEND_LDFLAGS)
 
 .PHONY: build
 build:
@@ -14,8 +15,9 @@ build:
 install:
 	$(INSTALL_DIR) $(DESTDIR)$(LIBEXEC_BIN)
 
-	CC="$(CC)" CFLAGS="$(PY_CFLAGS)" $(PYTHON) setup.py install \
-		$(PYTHON_PREFIX_ARG) --root="$(DESTDIR)" --force
+	CC="$(CC)" CFLAGS="$(PY_CFLAGS)" LDFLAGS="$(PY_LDFLAGS)" $(PYTHON) \
+		setup.py install $(PYTHON_PREFIX_ARG) --root="$(DESTDIR)"  \
+		--force
 
 	$(INSTALL_PROG) scripts/convert-legacy-stream $(DESTDIR)$(LIBEXEC_BIN)
 	$(INSTALL_PROG) scripts/verify-stream-v2 $(DESTDIR)$(LIBEXEC_BIN)