A project that uses maint.mk can specify regular expressions that are
not supported in system grep. Autoconf can discover an alias for GNU
grep and set it in GREP but it takes no effect for maint.mk
The patch provides an ability to use GNU grep if it was discovered by
autoconf and by calling GNU grep we don't get the messages in syntax-check:
prohibit_diagnostic_without_format
grep: empty (sub)expression
grep: empty (sub)expression
grep: empty (sub)expression
grep: empty (sub)expression
grep: empty (sub)expression
grep: empty (sub)expression
Signed-off-by: Roman Bolshakov <r.bolsha...@yadro.com>
---
modules/maintainer-makefile | 1 +
top/maint.mk | 114 ++++++++++++++++++------------------
2 files changed, 58 insertions(+), 57 deletions(-)
diff --git a/modules/maintainer-makefile b/modules/maintainer-makefile
index 39b51583c..13b8c546a 100644
--- a/modules/maintainer-makefile
+++ b/modules/maintainer-makefile
@@ -14,6 +14,7 @@ configure.ac:
AC_CONFIG_COMMANDS_PRE([m4_ifdef([AH_HEADER],
[AC_SUBST([CONFIG_INCLUDE], m4_defn([AH_HEADER]))])])
AC_REQUIRE([AC_PROG_SED])
+AC_REQUIRE([AC_PROG_GREP])
Makefile.am:
EXTRA_DIST += $(top_srcdir)/maint.mk
diff --git a/top/maint.mk b/top/maint.mk
index 36a5df262..af748157c 100644
--- a/top/maint.mk
+++ b/top/maint.mk
@@ -46,7 +46,7 @@ member-check =
\
# Do not save the original name or timestamp in the .tar.gz file.
# Use --rsyncable if available.
gzip_rsyncable := \
- $(shell gzip --help 2>/dev/null|grep rsyncable >/dev/null \
+ $(shell gzip --help 2>/dev/null|$(GREP) rsyncable >/dev/null \
&& printf %s --rsyncable)
GZIP_ENV = '--no-name --best $(gzip_rsyncable)'
@@ -83,9 +83,9 @@ _sc_excl = \
$(or $(exclude_file_name_regexp--$@),^$$)
VC_LIST_EXCEPT = \
$(VC_LIST) | $(SED) 's|^$(_dot_escaped_srcdir)/||' \
- | if test -f $(srcdir)/.x-$@; then grep -vEf $(srcdir)/.x-$@; \
- else grep -Ev -e "$${VC_LIST_EXCEPT_DEFAULT-ChangeLog}"; fi \
- | grep -Ev -e '($(VC_LIST_ALWAYS_EXCLUDE_REGEX)|$(_sc_excl))' \
+ | if test -f $(srcdir)/.x-$@; then $(GREP) -vEf $(srcdir)/.x-$@; \
+ else $(GREP) -Ev -e "$${VC_LIST_EXCEPT_DEFAULT-ChangeLog}"; fi \
+ | $(GREP) -Ev -e '($(VC_LIST_ALWAYS_EXCLUDE_REGEX)|$(_sc_excl))' \
$(_prepend_srcdir_prefix)
ifeq ($(origin prev_version_file), undefined)
@@ -292,34 +292,34 @@ define _sc_search_regexp
\
: Filter by file name; \
if test -n "$$in_files"; then \
- files=$$(find $(srcdir) | grep -E "$$in_files" \
- | grep -Ev '$(_sc_excl)'); \
+ files=$$(find $(srcdir) | $(GREP) -E "$$in_files" \
+ | $(GREP) -Ev '$(_sc_excl)'); \
else
\
files=$$($(VC_LIST_EXCEPT)); \
if test -n "$$in_vc_files"; then \
- files=$$(echo "$$files" | grep -E "$$in_vc_files"); \
+ files=$$(echo "$$files" | $(GREP) -E "$$in_vc_files"); \
fi; \
fi; \
\
: Filter by content;
\
test -n "$$files" && test -n "$$containing" \
&& { files=$$(echo "$$files" \
- | xargs grep -l "$$containing" /dev/null); } || :; \
+ | xargs $(GREP) -l "$$containing" /dev/null); } || :; \
test -n "$$files" && test -n "$$non_containing" \
&& { files=$$(echo "$$files" \
- | xargs grep -vl "$$non_containing" /dev/null); } || :; \
+ | xargs $(GREP) -vl "$$non_containing" /dev/null); } || :; \
\
: Check for the construct; \
if test -n "$$files"; then \
if test -n "$$prohibit"; then \
echo "$$files" /dev/null | xargs
\
- grep $$with_grep_options $(_ignore_case) -nE "$$prohibit" \
- | grep -vE "$${exclude:-^$$}" \
+ $(GREP) $$with_grep_options $(_ignore_case) -nE "$$prohibit" \
+ | $(GREP) -vE "$${exclude:-^$$}" \
&& { msg="$$halt" $(_sc_say_and_exit) } || :; \
else \
echo "$$files" | xargs \
- grep $$with_grep_options $(_ignore_case) -LE "$$require" \
- | grep . \
+ $(GREP) $$with_grep_options $(_ignore_case) -LE "$$require" \
+ | $(GREP) . \
&& { msg="$$halt" $(_sc_say_and_exit) } || :; \
fi
\
else :; \
@@ -327,7 +327,7 @@ define _sc_search_regexp
endef
sc_avoid_if_before_free:
- @$(VC_LIST_EXCEPT) | grep -v useless-if-before-free \
+ @$(VC_LIST_EXCEPT) | $(GREP) -v useless-if-before-free \
| xargs \
$(srcdir)/$(_build-aux)/useless-if-before-free \
$(useless_free_options) && \
@@ -405,25 +405,25 @@ sc_error_exit_success:
# "WARNING:" should be fully upper-cased, or fully lower-cased
sc_error_message_warn_fatal:
@$(VC_LIST_EXCEPT) | xargs \
- grep -nEA2 '[^rp]error *\(' /dev/null \
- | grep -E '"Warning|"Fatal|"fatal' && \
+ $(GREP) -nEA2 '[^rp]error *\(' /dev/null \
+ | $(GREP) -E '"Warning|"Fatal|"fatal' && \
{ echo '$(ME): use FATAL, WARNING or warning' 1>&2; \
exit 1; } || :
# Error messages should not start with a capital letter
sc_error_message_uppercase:
@$(VC_LIST_EXCEPT) | xargs \
- grep -nEA2 '[^rp]error *\(' /dev/null \
- | grep -E '"[A-Z]' \
- | grep -vE '"FATAL|"WARNING|"Java|"C#|PRIuMAX' && \
+ $(GREP) -nEA2 '[^rp]error *\(' /dev/null \
+ | $(GREP) -E '"[A-Z]' \
+ | $(GREP) -vE '"FATAL|"WARNING|"Java|"C#|PRIuMAX' && \
{ echo '$(ME): found capitalized error message' 1>&2; \
exit 1; } || :
# Error messages should not end with a period
sc_error_message_period:
@$(VC_LIST_EXCEPT) | xargs \
- grep -nEA2 '[^rp]error *\(' /dev/null \
- | grep -E '[^."]\."' && \
+ $(GREP) -nEA2 '[^rp]error *\(' /dev/null \
+ | $(GREP) -E '[^."]\."' && \
{ echo '$(ME): found error message ending in period' 1>&2; \
exit 1; } || :
@@ -467,8 +467,8 @@ perl_config_h_first_ =
\
# You must include <config.h> before including any other header file.
# This can possibly be via a package-specific header, if given by cfg.mk.
sc_require_config_h_first:
- @if $(VC_LIST_EXCEPT) | grep '\.c$$' > /dev/null; then \
- files=$$($(VC_LIST_EXCEPT) | grep '\.c$$') && \
+ @if $(VC_LIST_EXCEPT) | $(GREP) '\.c$$' > /dev/null; then \
+ files=$$($(VC_LIST_EXCEPT) | $(GREP) '\.c$$') && \
perl -n $(perl_config_h_first_) $$files || \
{ echo '$(ME): the above files include some other header' \
'before <config.h>' 1>&2; exit 1; } || :; \
@@ -486,10 +486,10 @@ sc_prohibit_HAVE_MBRTOWC:
define _sc_header_without_use
dummy=; : so we do not need a semicolon before each use; \
h_esc=`echo '[<"]'"$$h"'[">]'|$(SED) 's/\./\\\\./g'`;
\
- if $(VC_LIST_EXCEPT) | grep '\.c$$' > /dev/null; then
\
- files=$$(grep -l '^# *include '"$$h_esc" \
- $$($(VC_LIST_EXCEPT) | grep '\.c$$')) && \
- grep -LE "$$re" $$files | grep . &&
\
+ if $(VC_LIST_EXCEPT) | $(GREP) '\.c$$' > /dev/null; then \
+ files=$$($(GREP) -l '^# *include '"$$h_esc"
\
+ $$($(VC_LIST_EXCEPT) | $(GREP) '\.c$$')) && \
+ $(GREP) -LE "$$re" $$files | $(GREP) . && \
{ echo "$(ME): the above files include $$h but don't use it" \
1>&2; exit 1; } || :; \
else :; \
@@ -743,9 +743,9 @@ Exit_base := $(notdir $(Exit_witness_file))
sc_require_test_exit_idiom:
@if test -f $(srcdir)/$(Exit_witness_file); then \
die=0; \
- for i in $$(grep -l -F 'srcdir/$(Exit_base)' \
+ for i in $$($(GREP) -l -F 'srcdir/$(Exit_base)' \
$$($(VC_LIST) tests)); do \
- tail -n1 $$i | grep '^Exit .' > /dev/null \
+ tail -n1 $$i | $(GREP) '^Exit .' > /dev/null \
&& : || { die=1; echo $$i; } \
done; \
test $$die = 1 && \
@@ -850,13 +850,13 @@ endef
# Don't define macros that we already get from gnulib header files.
sc_prohibit_always-defined_macros:
@if test -d $(gnulib_dir); then \
- case $$(echo all: | grep -l -f - Makefile) in Makefile);; *) \
+ case $$(echo all: | $(GREP) -l -f - Makefile) in Makefile);; *) \
echo '$(ME): skipping $@: you lack GNU grep' 1>&2; exit 0;; \
esac; \
sym_regexes=$$(mktemp); \
$(def_sym_regex) > $$sym_regexes; \
$(VC_LIST_EXCEPT) | xargs \
- grep -E -f $$sym_regexes /dev/null \
+ $(GREP) -E -f $$sym_regexes /dev/null \
&& { echo '$(ME): define the above via some gnulib .h file' \
1>&2; exit 1; } || :; \
fi
@@ -864,7 +864,7 @@ sc_prohibit_always-defined_macros:
# Prohibit checked in backup files.
sc_prohibit_backup_files:
- @$(VC_LIST) | grep '~$$' && \
+ @$(VC_LIST) | $(GREP) '~$$' && \
{ echo '$(ME): found version controlled backup file' 1>&2; \
exit 1; } || :
@@ -986,8 +986,8 @@ ignore_doubled_word_match_RE_ ?= ^$$
sc_prohibit_doubled_word:
@$(VC_LIST_EXCEPT) | xargs \
perl -n -0777 $(prohibit_doubled_word_) \
- | grep -vE '$(ignore_doubled_word_match_RE_)' \
- | grep . && { echo '$(ME): doubled words' 1>&2; exit 1; } || :
+ | $(GREP) -vE '$(ignore_doubled_word_match_RE_)' \
+ | $(GREP) . && { echo '$(ME): doubled words' 1>&2; exit 1; } || :
# A regular expression matching undesirable combinations of words like
# "can not"; this matches them even when the two words appear on different
@@ -1013,7 +1013,7 @@ ignore_undesirable_word_sequence_RE_ ?= ^$$
sc_prohibit_undesirable_word_seq:
@$(VC_LIST_EXCEPT) | xargs \
perl -n -0777 $(prohibit_undesirable_word_seq_) \
- | grep -vE '$(ignore_undesirable_word_sequence_RE_)' | grep . \
+ | $(GREP) -vE '$(ignore_undesirable_word_sequence_RE_)' | $(GREP) . \
&& { echo '$(ME): undesirable word sequence' >&2; exit 1; } || :
# Except for shell files and for loops, double semicolon is probably a mistake
@@ -1047,7 +1047,7 @@ sc_prohibit_test_double_equal:
# when it contains "ICONV".
sc_proper_name_utf8_requires_ICONV:
@progs=$$($(VC_LIST_EXCEPT) | xargs \
- grep -l 'proper_name_utf8 ''("' /dev/null); \
+ $(GREP) -l 'proper_name_utf8 ''("' /dev/null); \
if test "x$$progs" != x; then \
fail=0; \
for p in $$progs; do \
@@ -1056,7 +1056,7 @@ sc_proper_name_utf8_requires_ICONV:
-ne 'exit !(/^LDADD =(.+?[^\\]\n)/ms && $$1 =~ /ICONV/)' \
$$dir/Makefile.am && continue; \
base=$$(basename "$$p" .c); \
- grep "$${base}_LDADD.*ICONV)" $$dir/Makefile.am > /dev/null \
+ $(GREP) "$${base}_LDADD.*ICONV)" $$dir/Makefile.am > /dev/null
\
|| { fail=1; echo 1>&2 "$(ME): $$p uses proper_name_utf8"; }; \
done; \
test $$fail = 1 && \
@@ -1117,12 +1117,12 @@ sc_makefile_at_at_check:
-e ' && !/(\w+)\s+=.*\@\1\@$$/' \
-e ''$(_makefile_at_at_check_exceptions) \
-e 'and (print "$$ARGV:$$.: $$_"), $$m=1; END {exit !$$m}' \
- $$($(VC_LIST_EXCEPT) | grep -E '(^|/)(Makefile\.am|[^/]+\.mk)$$') \
+ $$($(VC_LIST_EXCEPT) | $(GREP) -E
'(^|/)(Makefile\.am|[^/]+\.mk)$$') \
&& { echo '$(ME): use $$(...), not @...@' 1>&2; exit 1; } || :
news-check: NEWS
$(AM_V_GEN)if $(SED) -n $(news-check-lines-spec)p $< \
- | grep -E $(news-check-regexp) >/dev/null; then \
+ | $(GREP) -E $(news-check-regexp) >/dev/null; then \
:; \
else \
echo 'NEWS: $$(news-check-regexp) failed to match' 1>&2; \
@@ -1167,11 +1167,11 @@ generated_files ?= $(srcdir)/lib/*.[ch]
_gl_translatable_string_re ?= \b(N?_|gettext *)\([^)"]*("|$$)
sc_po_check:
@if test -f $(po_file); then \
- grep -E -v '^(#|$$)' $(po_file) \
- | grep -v '^src/false\.c$$' | sort > $@-1; \
+ $(GREP) -E -v '^(#|$$)' $(po_file) \
+ | $(GREP) -v '^src/false\.c$$' | sort > $@-1; \
files=$$($(VC_LIST_EXCEPT) | xargs -I{} \
perl $(perl_translatable_files_list_) {} $(generated_files)); \
- grep -E -l '$(_gl_translatable_string_re)' $$files \
+ $(GREP) -E -l '$(_gl_translatable_string_re)' $$files \
| $(SED) 's|^$(_dot_escaped_srcdir)/||' | sort -u > $@-2; \
diff -u -L $(po_file) -L $(po_file) $@-1 $@-2 \
|| { printf '$(ME): '$(fix_po_file_diag) 1>&2; exit 1; }; \
@@ -1236,17 +1236,17 @@ _hv_regex_weak ?= ^ *\. .*/init\.sh"
_hv_regex_strong ?= ^ *\. "\$${srcdir=\.}/init\.sh"
sc_cross_check_PATH_usage_in_tests:
@if test -f $(_hv_file); then \
- grep -l 'VERSION mismatch' $(_hv_file) >/dev/null \
+ $(GREP) -l 'VERSION mismatch' $(_hv_file) >/dev/null \
|| { echo "$@: skipped: no such file: $(_hv_file)" 1>&2; \
exit 0; }; \
- grep -lE '$(_hv_regex_strong)' $(_hv_file) >/dev/null \
+ $(GREP) -lE '$(_hv_regex_strong)' $(_hv_file) >/dev/null \
|| { echo "$@: $(_hv_file) lacks conforming use of init.sh" 1>&2; \
exit 1; }; \
- good=$$(grep -E '$(_hv_regex_strong)' $(_hv_file)); \
- grep -LFx "$$good" \
+ good=$$($(GREP) -E '$(_hv_regex_strong)' $(_hv_file)); \
+ $(GREP) -LFx "$$good" \
$$($(VC_LIST_EXCEPT) | xargs \
- grep -lE '$(_hv_regex_weak)' /dev/null) \
- | grep . && \
+ $(GREP) -lE '$(_hv_regex_weak)' /dev/null) \
+ | $(GREP) . && \
{ echo "$(ME): the above files use path_prepend_ inconsistently" \
1>&2; exit 1; } || :; \
fi
@@ -1441,7 +1441,7 @@ check: $(gl_public_submodule_commit)
ALL_RECURSIVE_TARGETS += alpha beta stable
alpha beta stable: $(local-check) writable-files $(submodule-checks)
$(AM_V_GEN)test $@ = stable \
- && { echo $(VERSION) | grep -E '^[0-9]+(\.[0-9]+)+$$' \
+ && { echo $(VERSION) | $(GREP) -E '^[0-9]+(\.[0-9]+)+$$' \
|| { echo "invalid version string: $(VERSION)" 1>&2; exit 1;};}\
|| :
$(AM_V_at)$(MAKE) vc-diff-check
@@ -1539,7 +1539,7 @@ refresh-gnulib-patches:
-e 'END{defined $$d and print $$d}' bootstrap.conf); \
test -n "$$t" && gl=$$t; \
fi; \
- for diff in $$(cd $$gl; git ls-files | grep '\.diff$$'); do \
+ for diff in $$(cd $$gl; git ls-files | $(GREP) '\.diff$$'); do \
b=$$(printf %s "$$diff"|$(SED) 's/\.diff$$//'); \
VERSION_CONTROL=none \
patch "$(gnulib_dir)/$$b" "$$gl/$$diff" || exit 1; \
@@ -1582,7 +1582,7 @@ update-copyright-env ?=
# in the file .x-update-copyright.
.PHONY: update-copyright
update-copyright:
- $(AM_V_GEN)grep -l -w Copyright \
+ $(AM_V_GEN)$(GREP) -l -w Copyright \
$$(export VC_LIST_EXCEPT_DEFAULT=COPYING && $(VC_LIST_EXCEPT)) \
| $(update-copyright-env) xargs $(srcdir)/$(_build-aux)/$@
@@ -1596,9 +1596,9 @@ _gl_TS_dir ?= src
ALL_RECURSIVE_TARGETS += sc_tight_scope
sc_tight_scope: tight-scope.mk
@fail=0; \
- if ! grep '^ *export _gl_TS_headers *=' $(srcdir)/cfg.mk \
+ if ! $(GREP) '^ *export _gl_TS_headers *=' $(srcdir)/cfg.mk \
> /dev/null \
- && ! grep -w noinst_HEADERS $(srcdir)/$(_gl_TS_dir)/Makefile.am \
+ && ! $(GREP) -w noinst_HEADERS $(srcdir)/$(_gl_TS_dir)/Makefile.am \
> /dev/null 2>&1; then \
echo '$(ME): skipping $@'; \
else \
@@ -1670,12 +1670,12 @@ _gl_tight_scope: $(bin_PROGRAMS)
hdr=`for f in $(_gl_TS_headers); do \
test -f $$f && d= || d=$(srcdir)/; echo $$d$$f; done`; \
( printf '%s\n' '__.*' $(_gl_TS_unmarked_extern_functions); \
- grep -h -A1 '^extern .*[^;]$$' $$src \
- | grep -vE '^(extern |--|#)' | $(SED) 's/ .*//; /^$$/d'; \
+ $(GREP) -h -A1 '^extern .*[^;]$$' $$src \
+ | $(GREP) -vE '^(extern |--|#)' | $(SED) 's/ .*//; /^$$/d'; \
perl -lne \
'$(_gl_TS_function_match) and print $$1' $$hdr; \
) | sort -u | $(SED) "$$sed_wrap" > $$t; \
- nm -g $(_gl_TS_obj_files)|$(SED) -n 's/.* T //p'|grep -Ev -f $$t \
+ nm -g $(_gl_TS_obj_files)|$(SED) -n 's/.* T //p'|$(GREP) -Ev -f $$t \
&& { echo the above functions should have static scope >&2; \
exit 1; } || : ; \
( printf '%s\n' '__.*' main $(_gl_TS_unmarked_extern_vars); \
@@ -1683,7 +1683,7 @@ _gl_tight_scope: $(bin_PROGRAMS)
$$hdr $(_gl_TS_other_headers) \
) | sort -u | $(SED) "$$sed_wrap" > $$t; \
nm -g $(_gl_TS_obj_files) | $(SED) -n 's/.* [BCDGRS] //p' \
- | sort -u | grep -Ev -f $$t
\
+ | sort -u | $(GREP) -Ev -f $$t \
&& { echo the above variables should have static scope >&2; \
exit 1; } || :
# TS-end
--
2.17.2 (Apple Git-113)
