At 2023-07-12T18:38:10+0000, Bjarni Ingi Gislason wrote: > In a Makefile: > > maintainer-clean-generic: > @echo "This command is intended for maintainers to use" > @echo "it deletes files that may require special tools to > rebuild." > -rm -f src/preproc/eqn/eqn.cpp
This is a bit vague, but it does warn you. The language appears to me to come from Automake. > src/preproc/eqn/eqn.hpp: src/preproc/eqn/eqn.cpp > @if test ! -f $@; then rm -f src/preproc/eqn/eqn.cpp; else :; fi > @if test ! -f $@; then $(MAKE) $(AM_MAKEFLAGS) src/preproc/eqn/eqn.cpp; > else :; fi > > -.-. > > Where are these "special tools" to rebuild files documented? > > The creation of "eqn.hpp" has strange conditions! NEWS: o Building groff from its distribution archive no longer requires byacc (or GNU Bison) to be installed. The files that byacc/bison creates are now part of our distribution archive, so you don't want to wipe them out on a whim. At 2023-07-13T00:20:15+0000, Bjarni Ingi Gislason wrote: > I could build the missing files by using "YACC=byacc", but I usually > use "bison". > > YACC is an environmental variable. https://www.gnu.org/software/automake/manual/1.10/html_node/Dist.html Regards, Branden
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