cpp: simplify the Flex version checking macro

[bison.git] / cfg.mk

diff --git a/cfg.mk b/cfg.mk
index c56e965bfe6b69ad140e429fccfbfa1feb8d5812..3f244aabee421092b060a23a82199d29e224615c 100644 (file)
--- a/cfg.mk
+++ b/cfg.mk
@@ -14,8 +14,17 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
+# Update version, then recompile so that tests/bison --version be
+# up-to-date, then compile our parser again with our up-to-date bison.
+.PHONY: regen
+regen: _version
+       $(MAKE) $(AM_MAKEFLAGS)
+       touch $(srcdir)/src/parse-gram.y
+       $(MAKE) $(AM_MAKEFLAGS)
+
 # Used in maint.mk's web-manual rule
 manual_title = The Yacc-compatible Parser Generator
+gendocs_options_ = -I $(abs_top_srcdir)/doc -I $(abs_top_builddir)/doc
 
 # It's useful to run maintainer-*check* targets during development, but we
 # don't want to wait on a recompile because of an update to $(VERSION).  Thus,
@@ -52,17 +61,32 @@ update-copyright: update-b4-copyright update-package-copyright-year
 update-copyright-env = \
   UPDATE_COPYRIGHT_FORCE=1 UPDATE_COPYRIGHT_USE_INTERVALS=1
 
-exclude = $(foreach a,$(1),$(eval exclude_file_name_regexp--sc_$(a)))
+# At least for Mac OS X's grep, the order between . and [ in "[^.[]"
+# matters:
+# $ LC_ALL=fr_FR grep -nE '[^[.]' /dev/null
+# $ LC_ALL=C grep -nE '[^[.]' /dev/null
+# grep: invalid collating element or class
+# $ LC_ALL=fr_FR grep -nE '[^.[]' /dev/null
+# $ LC_ALL=C grep -nE '[^.[]' /dev/null
+sc_at_parser_check:
+       @prohibit='AT_PARSER_CHECK\(\[+[^.[]|AT_CHECK\(\[+\./'          \
+       halt='use AT_PARSER_CHECK for and only for generated parsers'   \
+         $(_sc_search_regexp)
+
+exclude = \
+  $(foreach a,$(1),$(eval $(subst $$,$$$$,exclude_file_name_regexp--sc_$(a))))
 $(call exclude,                                                                \
   bindtextdomain=^lib/main.c$$                                         \
   program_name=^lib/main.c$$                                           \
-  prohibit_always-defined_macros=^data/yacc.c|^djgpp/                  \
+  prohibit_always-defined_macros=^data/yacc.c$$|^djgpp/                        \
   prohibit_always-defined_macros+=?|^lib/timevar.c$$                   \
   prohibit_always-defined_macros+=?|^src/(parse-gram.c|system.h)$$     \
   prohibit_always-defined_macros+=?|^tests/regression.at$$             \
-  prohibit_empty_lines_at_EOF=^src/parse-gram.[ch]$$                   \
+  prohibit_defined_have_decl_tests=?|^lib/timevar.c$$                  \
+  prohibit_magic_number_exit=^doc/bison.texi$$                         \
+  prohibit_magic_number_exit+=?|^tests/(conflicts|regression).at$$     \
   require_config_h_first=^(lib/yyerror|data/(glr|yacc))\.c$$           \
   space_tab=^tests/(input|c\+\+)\.at$$                                 \
   trailing_blank=^src/parse-gram.[ch]$$                                        \
-  unmarked_diagnostics=^djgpp/                                         \
+  unmarked_diagnostics=^(djgpp/|doc/bison.texi$$|tests/c\+\+\.at$$)    \
 )