re='$(_hash_fn)|$(_hash_struct)'\
$(_sc_header_without_use)
+sc_prohibit_cloexec_without_use:
+ @h='"cloexec.h"' re='\<(set_cloexec_flag|dup_cloexec) *\(' \
+ $(_sc_header_without_use)
+
+sc_prohibit_posixver_without_use:
+ @h='"posixver.h"' re='\<posix2_version *\(' $(_sc_header_without_use)
+
+sc_prohibit_same_without_use:
+ @h='"same.h"' re='\<same_name *\(' $(_sc_header_without_use)
+
sc_prohibit_hash_pjw_without_use:
@h='"hash-pjw.h"' \
re='\<hash_pjw *\(' \
re='\<($(_sig_function_re)) *\(|\<($(_sig_syms_re))\>' \
$(_sc_header_without_use)
+# Don't include stdio--.h unless you use one of its functions.
+sc_prohibit_stdio--_without_use:
+ @h='"stdio--.h"' re='\<((f(re)?|p)open|tmpfile) *\(' \
+ $(_sc_header_without_use)
+
+# Don't include stdio-safer.h unless you use one of its functions.
+sc_prohibit_stdio-safer_without_use:
+ @h='"stdio-safer.h"' re='\<((f(re)?|p)open|tmpfile)_safer *\(' \
+ $(_sc_header_without_use)
+
# Prohibit the inclusion of strings.h without a sensible use.
# Using the likes of bcmp, bcopy, bzero, index or rindex is not sensible.
sc_prohibit_strings_without_use:
re='\<($(_stddef_syms_re)) *\(' \
$(_sc_header_without_use)
+# Don't include xfreopen.h unless you use one of its functions.
+sc_prohibit_xfreopen_without_use:
+ @h='"xfreopen.h"' re='\<xfreopen *\(' $(_sc_header_without_use)
+
sc_obsolete_symbols:
@prohibit='\<(HAVE''_FCNTL_H|O''_NDELAY)\>' \
halt='do not use HAVE''_FCNTL_H or O'_NDELAY \
halt='help2man requires at least two spaces between an option and its description'\
$(_sc_search_regexp)
+# A regexp matching function names like "error" that may be used
+# to emit translatable messages.
+_gl_translatable_diag_func_re ?= error
+
# Look for diagnostics that aren't marked for translation.
# This won't find any for which error's format string is on a separate line.
sc_unmarked_diagnostics:
@grep -nE \
- '\<error *\([^"]*"[^"]*[a-z]{3}' $$($(VC_LIST_EXCEPT)) \
+ '\<$(_gl_translatable_diag_func_re) *\([^"]*"[^"]*[a-z]{3}' \
+ $$($(VC_LIST_EXCEPT)) \
| grep -Ev '(_|ngettext ?)\(' && \
{ echo '$(ME): found unmarked diagnostic(s)' 1>&2; \
exit 1; } || :
$$(export VC_LIST_EXCEPT_DEFAULT=COPYING && $(VC_LIST_EXCEPT)) \
| $(update-copyright-env) xargs $(build_aux)/$@
-# NOTE: This test is silently skipped if $(_gl_TS_dir)/Makefile.am
-# does not mention noinst_HEADERS.
-# NOTE: to override these _gl_TS_* default values, you must
+# This tight_scope test is skipped with a warning if $(_gl_TS_headers) is not
+# overridden and $(_gl_TS_dir)/Makefile.am does not mention noinst_HEADERS.
+
+# NOTE: to override any _gl_TS_* default value, you must
# define the variable(s) using "export" in cfg.mk.
_gl_TS_dir ?= src
+
ALL_RECURSIVE_TARGETS += sc_tight_scope
sc_tight_scope: tight-scope.mk
- @grep noinst_HEADERS $(_gl_TS_dir)/Makefile.am > /dev/null 2>&1 \
- && $(MAKE) -s -C $(_gl_TS_dir) -f Makefile \
- -f '$(abs_srcdir)/tight-scope.mk' _gl_tight_scope \
- || :
+ @if ! grep '^ *export _gl_TS_headers *=' $(srcdir)/cfg.mk \
+ > /dev/null \
+ && ! grep -w noinst_HEADERS $(srcdir)/$(_gl_TS_dir)/Makefile.am \
+ > /dev/null 2>&1; then \
+ echo '$(ME): skipping $@'; \
+ else \
+ $(MAKE) -s -C $(_gl_TS_dir) \
+ -f Makefile \
+ -f $(abs_top_srcdir)/cfg.mk \
+ -f $(abs_top_builddir)/$< \
+ _gl_tight_scope \
+ || fail=1; \
+ fi
@rm -f $<
tight-scope.mk: $(ME)
ifeq (a,b)
# TS-start
+
# Most functions should have static scope.
# Any that don't must be marked with `extern', but `main'
# and `usage' are exceptions: they're always extern, but
-# do not need to be marked.
+# do not need to be marked. Symbols matching `__.*' are
+# reserved by the compiler, so are automatically excluded below.
_gl_TS_unmarked_extern_functions ?= main usage
-_gl_TS_function_match ?= \
- /^(?:extern|XTERN) +(?:void|(?:struct |const |enum )?\S+) +\**(\S+) +\(/
+_gl_TS_function_match ?= /^(?:$(_gl_TS_extern)) +.*?(\S+) +\(/
+
+# If your project uses a macro like "XTERN", then put
+# the following in cfg.mk to override this default:
+# export _gl_TS_extern = extern|XTERN
+_gl_TS_extern ?= extern
# The second nm|grep checks for file-scope variables with `extern' scope.
# Without gnulib's progname module, you might put program_name here.
+# Symbols matching `__.*' are reserved by the compiler,
+# so are automatically excluded below.
_gl_TS_unmarked_extern_vars ?=
# NOTE: the _match variables are perl expressions -- not mere regular
# a macro like this: GLOBAL(type, var_name, initializer), then you
# can override this definition to automatically extract those names:
# export _gl_TS_var_match = \
-# /^(?:extern|XTERN) .*?\**(\w+)(\[.*?\])?;/ || /\bGLOBAL\(.*?,\s*(.*?),/
-_gl_TS_var_match ?= /^(?:extern|XTERN) .*?\**(\w+)(\[.*?\])?;/
+# /^(?:$(_gl_TS_extern)) .*?\**(\w+)(\[.*?\])?;/ || /\bGLOBAL\(.*?,\s*(.*?),/
+_gl_TS_var_match ?= /^(?:$(_gl_TS_extern)) .*?(\w+)(\[.*?\])?;/
+
+# The names of object files in (or relative to) $(_gl_TS_dir).
+_gl_TS_obj_files ?= *.$(OBJEXT)
+
+# Files in which to search for the one-line style extern declarations.
+# $(_gl_TS_dir)-relative.
+_gl_TS_headers ?= $(noinst_HEADERS)
+
.PHONY: _gl_tight_scope
_gl_tight_scope: $(bin_PROGRAMS)
t=exceptions-$$$$; \
done; \
src=`for f in $(SOURCES); do \
test -f $$f && d= || d=$(srcdir)/; echo $$d$$f; done`; \
- hdr=`for f in $(noinst_HEADERS); do \
+ hdr=`for f in $(_gl_TS_headers); do \
test -f $$f && d= || d=$(srcdir)/; echo $$d$$f; done`; \
- ( printf '^%s$$\n' $(_gl_TS_unmarked_extern_functions); \
+ ( printf '^%s$$\n' '__.*' $(_gl_TS_unmarked_extern_functions); \
grep -h -A1 '^extern .*[^;]$$' $$src \
| grep -vE '^(extern |--)' | sed 's/ .*//'; \
- perl -lne '$(_gl_TS_function_match)' \
- -e 'and print $$1' $$hdr; \
- ) | sort -u | sed 's/^/^/;s/$$/$$/' > $$t; \
- nm -e *.$(OBJEXT) | sed -n 's/.* T //p' | grep -Ev -f $$t \
+ perl -lne \
+ '$(_gl_TS_function_match) and print "^$$1\$$"' $$hdr; \
+ ) | sort -u > $$t; \
+ nm -e $(_gl_TS_obj_files) | sed -n 's/.* T //p'|grep -Ev -f $$t \
&& { echo the above functions should have static scope >&2; \
exit 1; } || : ; \
- ( printf '^%s$$\n' $(_gl_TS_unmarked_extern_vars); \
- perl -lne '$(_gl_TS_var_match) and print "^$$1\$$"' \
- $$hdr *.h ) | sort -u > $$t; \
- nm -e *.$(OBJEXT) | sed -n 's/.* [BCDGRS] //p' \
+ ( printf '^%s$$\n' '__.*' $(_gl_TS_unmarked_extern_vars); \
+ perl -lne '$(_gl_TS_var_match) and print "^$$1\$$"' $$hdr *.h \
+ ) | sort -u > $$t; \
+ nm -e $(_gl_TS_obj_files) | sed -n 's/.* [BCDGRS] //p' \
| sort -u | grep -Ev -f $$t \
&& { echo the above variables should have static scope >&2; \
exit 1; } || :