gen_h=$(gl_generated_headers_); \
(cd $(gnulib_dir)/lib; \
for f in *.in.h $(gl_other_headers_); do \
- perl -lne '$(gl_extract_significant_defines_)' $$f; \
+ test -f $$f \
+ && perl -lne '$(gl_extract_significant_defines_)' $$f; \
done; \
) | sort -u \
| sed 's/^/^ *# *(define|undef) */;s/$$/\\>/'