Reference: <http://lists.gnu.org/archive/html/automake-patches/2011-01/msg00306.html>
On Friday 28 January 2011, Stefano Lattarini wrote: > Hello automakers. The reasons of this patch should be > explained in details in the ChangeLog entry (see below). > > OK for the 'yacc-work' branch? > > Regards, > Stefano > > -*-*- > > With this change, if '-d' is in *YFLAGS, a yacc input file named > foo.y++ will cause a foo.h++ header to be generated, instead of a > foo.h header. Similarly for foo.ypp, foo.yxx and foo.yy. > This way, the name of the files generated by an automake-created > `ylwrap' invocation should be consistent with those generated by > a `bison -o' call. > > Related to automake bug#7648 and PR automake/491. > > * lib/am/yacc.am (am__yacc_c2h): New internal variable. > (?GENERIC?%EXT%%DERIVED-EXT%, ?!GENERIC?%OBJ%): Get the name of > the header dynamically at make runtime, so that its extension is > modelled after the extension of the source. > * automake.in (lang_yacc_target_hook): Adjust the calculation of > `$header' accordingly. > * tests/yacc-cxx.test: New test. > * tests/yacc-d-cxx.test: Likewise. > * tests/yacc-weirdnames.test: Likewise. > * tests/yacc-basic.test: Update comments. > * tests/yacc-d-basic.test: Likewise. > * tests/yaccpp.test: Updated and extended. > * tests/Makefile.am (TESTS): Update. > This patch has been applied in the meantime, but it lacked NEWS and documentation updates. I will post them soonish in two different patches. Sorry for the noise, Stefano
