run xargs with --no-run-if-empty to avoid random failures:
MAKE tags
ctags: No files specified. Try "ctags --help".
make: *** [tags] Error 123
Signed-off-by: Olaf Hering <[email protected]>
---
Makefile | 26 ++++++++++++++------------
1 file changed, 14 insertions(+), 12 deletions(-)
Index: linux-2.6/Makefile
===================================================================
--- linux-2.6.orig/Makefile
+++ linux-2.6/Makefile
@@ -295,6 +295,8 @@ DEPMOD = /sbin/depmod
KALLSYMS = scripts/kallsyms
PERL = perl
CHECK = sparse
+# assume xargs comes from GNU findutils or GNU coreutils
+XARGS = $(shell if [ "$$(uname -s)" = "Linux" ]; then echo "xargs --no-run-if-empty" ; else echo "xargs" ; fi )
CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ -Wbitwise $(CF)
MODFLAGS = -DMODULE
@@ -1049,7 +1051,7 @@ clean: archclean $(clean-dirs)
\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
-o -name '*.symtypes' \) \
- -type f -print | xargs rm -f
+ -type f -print | $(XARGS) rm -f
# mrproper - Delete all generated files, including .config
#
@@ -1075,7 +1077,7 @@ distclean: mrproper
-o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
-o -name '.*.rej' -o -size 0 \
-o -name '*%' -o -name '.*.cmd' -o -name 'core' \) \
- -type f -print | xargs rm -f
+ -type f -print | $(XARGS) rm -f
# Packaging of the kernel to various formats
@@ -1237,7 +1239,7 @@ clean: $(clean-dirs)
@find $(KBUILD_EXTMOD) $(RCS_FIND_IGNORE) \
\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \) \
- -type f -print | xargs rm -f
+ -type f -print | $(XARGS) rm -f
help:
@echo ' Building external modules.'
@@ -1313,26 +1315,26 @@ endef
define xtags
if $1 --version 2>&1 | grep -iq exuberant; then \
- $(all-sources) | xargs $1 -a \
+ $(all-sources) | $(XARGS) $1 -a \
-I __initdata,__exitdata,__acquires,__releases \
-I EXPORT_SYMBOL,EXPORT_SYMBOL_GPL \
--extra=+f --c-kinds=+px; \
- $(all-kconfigs) | xargs $1 -a \
+ $(all-kconfigs) | $(XARGS) $1 -a \
--langdef=kconfig \
--language-force=kconfig \
--regex-kconfig='/^[[:blank:]]*config[[:blank:]]+([[:alnum:]_]+)/\1/'; \
- $(all-defconfigs) | xargs $1 -a \
+ $(all-defconfigs) | $(XARGS) $1 -a \
--langdef=dotconfig \
--language-force=dotconfig \
--regex-dotconfig='/^#?[[:blank:]]*(CONFIG_[[:alnum:]_]+)/\1/'; \
elif $1 --version 2>&1 | grep -iq emacs; then \
- $(all-sources) | xargs $1 -a; \
- $(all-kconfigs) | xargs $1 -a \
+ $(all-sources) | $(XARGS) $1 -a; \
+ $(all-kconfigs) | $(XARGS) $1 -a \
--regex='/^[ \t]*config[ \t]+\([a-zA-Z0-9_]+\)/\1/'; \
- $(all-defconfigs) | xargs $1 -a \
+ $(all-defconfigs) | $(XARGS) $1 -a \
--regex='/^#?[ \t]?\(CONFIG_[a-zA-Z0-9_]+\)/\1/'; \
else \
- $(all-sources) | xargs $1 -a; \
+ $(all-sources) | $(XARGS) $1 -a; \
fi
endef
@@ -1371,12 +1373,12 @@ tags: FORCE
includecheck:
find * $(RCS_FIND_IGNORE) \
-name '*.[hcS]' -type f -print | sort \
- | xargs $(PERL) -w scripts/checkincludes.pl
+ | $(XARGS) $(PERL) -w scripts/checkincludes.pl
versioncheck:
find * $(RCS_FIND_IGNORE) \
-name '*.[hcS]' -type f -print | sort \
- | xargs $(PERL) -w scripts/checkversion.pl
+ | $(XARGS) $(PERL) -w scripts/checkversion.pl
namespacecheck:
$(PERL) $(srctree)/scripts/namespace.pl
-
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