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bug#7648: [PATCH] {yacc-work} yacc: extension of headers modelled after

From: Stefano Lattarini
Subject: bug#7648: [PATCH] {yacc-work} yacc: extension of headers modelled after extension of sources
Date: Sun, 10 Apr 2011 10:26:40 +0200
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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

Sorry for the noise,

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