DJGPP specific file.

[bison.git] / src / Makefile.am

diff --git a/src/Makefile.am b/src/Makefile.am
index 2ae2ee8552d6dbd60f5b6527145d1bf68208664e..c973e9e75c3d1a7eb13e757c5013b3f0766cafeb 100644 (file)
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -1,4 +1,4 @@
-## Copyright (C) 2001, 2002 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
@@ -12,26 +12,26 @@
 
 ## You should have received a copy of the GNU General Public License
 ## along with this program; if not, write to the Free Software
-## Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-## 02111-1307  USA
+## 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
 AM_YFLAGS = "-dv"
 
-# config.h is in build/.
-INCLUDES = -I$(top_builddir)      \
-           -I$(top_srcdir)/lib
-
 LDADD = ../lib/libbison.a $(LIBINTL)
 
+# Use our own Bison to build the parser.  Of course, you ought to
+# keep a sane version of Bison nearby...
+YACC = ../tests/bison -y
+
 bin_PROGRAMS = bison
-bin_SCRIPTS = yacc
+bin_SCRIPTS = $(YACC_SCRIPT)
+EXTRA_SCRIPTS = yacc
 
-bison_SOURCES =                                  \
+bison_SOURCES =                                          \
        LR0.c LR0.h                               \
        assoc.c assoc.h                           \
        closure.c closure.h                       \
@@ -53,8 +53,8 @@ bison_SOURCES =                                 \
        reader.c reader.h                         \
        reduce.c reduce.h                         \
        relation.c relation.h                     \
-       scan-gram.l                               \
-       scan-skel.l                               \
+       scan-gram-c.c                             \
+       scan-skel-c.c scan-skel.h                 \
        state.c state.h                           \
        symlist.c symlist.h                       \
        symtab.c symtab.h                         \
@@ -64,6 +64,8 @@ bison_SOURCES =                                 \
        vcg.c vcg.h                               \
        vcg_defaults.h
 
+EXTRA_bison_SOURCES = scan-skel.l scan-gram.l
+
 BUILT_SOURCES = scan-skel.c scan-gram.c parse-gram.c parse-gram.h
 
 MOSTLYCLEANFILES = yacc
@@ -75,3 +77,34 @@ yacc:
 
 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