It's not clear to me why we need this, but we apparently may
otherwise not get all files bundled in the dist tarball.
EXTRA_DIST = AUTHORS CHANGES README.cares Makefile.inc Makefile.dj \
Makefile.m32 Makefile.netware Makefile.msvc $(man_MANS) $(MSVCFILES) \
config-win32.h RELEASE-NOTES libcares.pc.in buildconf get_ver.awk maketgz \
- TODO ares_build.h.in $(PDFPAGES) cares.rc README.msvc
+ TODO ares_build.h.in $(PDFPAGES) cares.rc README.msvc $(CSOURCES) $(HHEADERS)
CLEANFILES = $(PDFPAGES) $(HTMLPAGES)