Description:
A C macro for emitting link time warnings.
+Applicability:
+all
+
Files:
build-aux/link-warning.h
Depends-on:
configure.ac:
+AC_REQUIRE([gl_FEATURES_H])
Makefile.am:
+# The BUILT_SOURCES created by this Makefile snippet are not used via #include
+# statements but through direct file reference. Therefore this snippet must be
+# present in all Makefile.am that need it. This is ensured by the applicability
+# 'all' defined above.
+
BUILT_SOURCES += link-warning.h
# The link-warning.h that gets inserted into generated .h files is the same as
# build-aux/link-warning.h, except that it has the copyright header cut off.
link-warning.h: $(top_srcdir)/build-aux/link-warning.h
$(AM_V_GEN)rm -f $@-t $@ && \
- cat $(top_srcdir)/build-aux/link-warning.h \
- | sed -e '1,/www\.gnu\.org\/licenses/d' | sed -e '1d' \
+ sed -n -e '/HAVE_FEATURES_H/,$$p' \
+ < $(top_srcdir)/build-aux/link-warning.h \
+ | sed -e 's|@''HAVE_FEATURES_H''@|$(HAVE_FEATURES_H)|g' \
> $@-t && \
mv $@-t $@
MOSTLYCLEANFILES += link-warning.h link-warning.h-t