-## Copyright (C) 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
+## Copyright (C) 2001, 2002, 2003, 2004, 2005 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
## Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
## 02110-1301 USA
-DEFS = @DEFS@ \
- -DPKGDATADIR=\"$(pkgdatadir)\" \
- -DLOCALEDIR=\"$(datadir)/locale\"
+DEFS += -DPKGDATADIR=\"$(pkgdatadir)\" -DLOCALEDIR=\"$(datadir)/locale\"
AM_CFLAGS = $(WARNING_CFLAGS) $(WERROR_CFLAGS)
AM_CPPFLAGS = -I$(top_srcdir)/lib -I../lib
bin_SCRIPTS = $(YACC_SCRIPT)
EXTRA_SCRIPTS = yacc
-bison_SOURCES = \
+bison_SOURCES = \
LR0.c LR0.h \
assoc.c assoc.h \
closure.c closure.h \
reduce.c reduce.h \
relation.c relation.h \
scan-gram.l \
- scan-skel.l \
+ scan-skel.h scan-skel.l \
state.c state.h \
symlist.c symlist.h \
symtab.c symtab.h \
echo:
echo $(bison_SOURCES) $(noinst_HEADERS)
+
+# The following rule is not designed to be portable,
+# and relies on tools that not everyone has.
+
+# Most functions in src/*.c should have static scope.
+# Any that don't must be marked with `extern', but `main'
+# and `usage' are exceptions. They're always extern, but
+# don't need to be marked.
+#
+# The second nm|grep checks for file-scope variables with `extern' scope.
+sc_tight_scope: $(all_programs)
+ @t=exceptions-$$$$; \
+ trap 's=$$?; rm -f $$t; exit $$s' 0 1 2 13 15; \
+ ( printf '^main$$\n^usage$$\n'; \
+ grep -h -A1 '^extern .*[^;]$$' $(SOURCES) \
+ | grep -vE '^(extern |--)' |sed 's/^/^/;s/ .*/$$/' ) > $$t; \
+ if nm -e *.$(OBJEXT) \
+ | sed -n 's/.* T //p' \
+ | grep -Ev -f $$t; then \
+ echo 'the above functions should have static scope' 1>&2; \
+ exit 1; \
+ fi; \
+ ( printf '^program_name$$\n'; \
+ sed -n 's/^extern .*[* ]\([a-zA-Z_][a-zA-Z_0-9]*\);$$/^\1$$/p' \
+ $$(ls $(SOURCES) | grep '\.h$$') /dev/null) > $$t; \
+ if nm -e *.$(OBJEXT) \
+ | sed -n 's/.* [BD] //p' \
+ | grep -Ev -f $$t; then \
+ echo 'the above variables should have static scope' 1>&2; \
+ exit 1; \
+ fi