Add a new way to document changes

* Makefile.in: Define the update-changes target to merge the change files
  from the changes directory to the top of the CHANGES file and remove
  them afterwards. If a Subversion binary was found during configure try
  to svn rm them otherwise just delete them.

* configure.in: Search for the Subversion binary.

* acinclude.m4: Set the corresponding Makefile variable for the Subversion
  binary.

* README.CHANGES: New file to document the new approach.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1879822 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 20 insertions, 0 deletions

diff --git a/Makefile.in b/Makefile.in
index df59db6fde..6a2be8d830 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -166,6 +166,26 @@ docs:
 	    echo '  http://httpd.apache.org/docs-project/docsformat.html'; \
 	fi
 
+update-changes:
+	@for i in `find changes -type f`; do \
+	    cp CHANGES CHANGES.tmp ; \
+	    awk -vfname=$$i 'BEGIN{done = 0} \
+	                    done == 0 && /^Changes with Apache /{ active = 1; print; next}; \
+	                    /^ *\*/ && active == 1 && done == 0{rec=$$0; while(getline<fname){if (! ($$0 ~ /^ *$$/)){print}}printf "\n";print rec; active = 0; done = 1; next} //;' \
+	    CHANGES.tmp > CHANGES ; \
+	    rm CHANGES.tmp ; \
+	    if [ -n "$(SVN)" ] ; then \
+	        if ! $(SVN) rm $$i 2>/dev/null ; then \
+	            $(RM) $$i ; \
+	        fi ; \
+	    else \
+	        $(RM) $$i ; \
+	    fi ; \
+	done ; \
+	if [ -n "$(SVN)" ] ; then \
+	    $(SVN) diff CHANGES ; \
+	fi
+
 validate-xml:
 	@if test -d $(top_srcdir)/docs/manual/build; then \
 	    cd $(top_srcdir)/docs/manual/build && ./build.sh validate-xml; \