(probably neither do the ASAN/... FLAGS, but let's leave that alone.)
Also, it was intentional that it's $(WERROR) and not @WERROR@. The
former can be overwritten at comandline as "make WERROR=" while the
latter can't.
Signed-off-by: David Lamparter <equinox@diac24.net>
# Automake fragment intended to be shared by Makefile.am files in the
# tree. When used, should be included at the very top of the file.
#
-AM_CPPFLAGS = @ASAN_FLAGS@ @TSAN_FLAGS@ @MSAN_FLAGS@ @WERROR@
-AM_CFLAGS = @ASAN_FLAGS@ @TSAN_FLAGS@ @MSAN_FLAGS@ @WERROR@
+AM_CPPFLAGS = @ASAN_FLAGS@ @TSAN_FLAGS@ @MSAN_FLAGS@
+AM_CFLAGS = @ASAN_FLAGS@ @TSAN_FLAGS@ @MSAN_FLAGS@ $(WERROR)
AM_V_CLIPPY = $(am__v_CLIPPY_$(V))
am__v_CLIPPY_ = $(am__v_CLIPPY_$(AM_DEFAULT_VERBOSITY))