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* build: doc: get rid of the need for manual updating of MakefileDuncan Roe2021-08-011-40/+31
| | | | | | | | | | | | | | | | | There used to be 3 things in doxygen/Makefile.am that developers had to update: 1. The dependency list (i.e. all C sources) 2. The setgroup lines, which renamed each module man page to be the page for the first described function. setgroup also set the target for: 3. The add2group lines, which symlinked pages for other documented functions in the group. The new system eliminates all of the above. Signed-off-by: Duncan Roe <duncan_roe@optusnet.com.au> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* build: doc: "make" builds & installs a full set of man pagesDuncan Roe2021-06-231-0/+75
Repeat what we did for libnetfilter_queue: - New makefile in doxygen directory. Rebuilds documentation if any sources change that contain doxygen comments: - Renames each group man page to the first function listed therein - Creates symlinks for subsequently listed functions - Deletes _* temp files and moves sctruct-describing man pages to man7 - Update top-level makefile to visit new subdir doxygen - Update top-level configure to only build documentation if doxygen installed - Add --with/without-doxygen switch - Check whether dot is available when configuring doxygen - Reduce size of doxygen.cfg and doxygen build o/p - `make distcheck` passes with doxygen enabled Aditionally, exclude opaque structs mnl_nlmsg_batch & mnl_socket Signed-off-by: Duncan Roe <duncan_roe@optusnet.com.au> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>