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- ## automake - create Makefile.in from Makefile.am
- ## Copyright (C) 1998-2017 Free Software Foundation, Inc.
- ## This program is free software; you can redistribute it and/or modify
- ## it under the terms of the GNU General Public License as published by
- ## the Free Software Foundation; either version 2, or (at your option)
- ## any later version.
- ## This program is distributed in the hope that it will be useful,
- ## but WITHOUT ANY WARRANTY; without even the implied warranty of
- ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- ## GNU General Public License for more details.
- ## You should have received a copy of the GNU General Public License
- ## along with this program. If not, see <http://www.gnu.org/licenses/>.
- ## We want to disable the Yacc rebuild rule when
- ## 1. AM_MAINTAINER_MODE is used, and
- ## 2. --enable-maintainer-mode is not specified, and
- ## 3. parser.c already exist, and
- ## 4. parser.y and parser.c are distributed.
- ## Point #3 is because "make maintainer-clean" erases parser.c, yet
- ## the GNU Coding Standards require that ./configure; make works even
- ## after that.
- ## Point #4 is because parsers listed in nodist_*_SOURCES are always
- ## built on the user's side, so it makes no sense to disable them.
- ##
- ## Points #1, #2, #3 are solved by unconditionally prefixing the rule
- ## with $(am__skipyacc) defined below only when needed.
- ##
- ## Point #4 requires a condition on whether parser.y/parser.c are
- ## distributed or not. We cannot have a generic rule that works in
- ## both cases, so we ensure in automake that nodist_ parsers always
- ## use non-generic rules.
- if %?FIRST%
- if %?MAINTAINER-MODE%
- @MAINTAINER_MODE_FALSE@am__skipyacc = test -f $@ ||
- endif %?MAINTAINER-MODE%
- ## The 's/c$/h/' substitution *must* be the last one.
- am__yacc_c2h = sed -e s/cc$$/hh/ -e s/cpp$$/hpp/ -e s/cxx$$/hxx/ \
- -e s/c++$$/h++/ -e s/c$$/h/
- endif %?FIRST%
- ?GENERIC?%EXT%%DERIVED-EXT%:
- ?!GENERIC?%OBJ%: %SOURCE%
- ?GENERIC? %VERBOSE%$(am__skipyacc) $(SHELL) $(YLWRAP) %SOURCE% y.tab.c %OBJ% y.tab.h `echo %OBJ% | $(am__yacc_c2h)` y.output %BASE%.output -- %COMPILE%
- ?!GENERIC? %VERBOSE% \
- ?!GENERIC??DIST_SOURCE? $(am__skipyacc) \
- ## For non-suffix rules, we must emulate a VPATH search on %SOURCE%.
- ?!GENERIC? $(SHELL) $(YLWRAP) `test -f '%SOURCE%' || echo '$(srcdir)/'`%SOURCE% y.tab.c %OBJ% y.tab.h `echo %OBJ% | $(am__yacc_c2h)` y.output %BASE%.output -- %COMPILE%
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