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kbuild: fix "Argument list too long" error for "make headers_check",

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I'm trying to install kernel headers to build a cross-toolchain, but got
the following:

make ARCH=arm
INSTALL_HDR_PATH=/work/psl/eldk-builds/arm-2009-04-21/work/var/tmp/crosstool-0.43-3-root/usr/crosstool/gcc-4.2.2-glibc-20070515T2025-eldk/
+arm-linux-gnueabi/arm-linux-gnueabi/
headers_check
...
  CHECK   include/linux/raid (2 files)
  CHECK   include/linux/spi (1 files)
  CHECK   include/linux/sunrpc (1 files)
  CHECK   include/linux/tc_act (6 files)
  CHECK   include/linux/tc_ematch (4 files)
  CHECK   include/linux/usb (8 files)
make[2]: execvp: /bin/sh: Argument list too long
make[2]: ***
[/work/psl/eldk-builds/arm-2009-04-21/work/var/tmp/crosstool-0.43-3-root/usr/crosstool/gcc-4.2.2-glibc-20070515T2025-eldk/arm-linux-gnueab
+i/arm-linux-gnueabi//include/linux/.check]
Error 127
make[1]: *** [linux] Error 2
make: *** [headers_check] Error 2
->

Introduce use of xargs to fix this.

Signed-off-by: Sergei Poselenov <sposelenov@emcraft.com>
Cc: Wolfgang Denk <wd@denx.de>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
This commit is contained in:
Sergei Poselenov 2009-06-05 16:11:09 +04:00 committed by Sam Ravnborg
parent 35763e854f
commit 7211b8b902
1 changed files with 6 additions and 2 deletions
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8
scripts/Makefile.headersinst
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@ -54,8 +54,12 @@ quiet_cmd_remove = REMOVE $(unwanted)
cmd_remove = rm -f $(unwanted-file)
quiet_cmd_check = CHECK $(printdir) ($(words $(all-files)) files)
cmd_check = $(PERL) $< $(INSTALL_HDR_PATH)/include $(SRCARCH) \
$(addprefix $(install)/, $(all-files)); \
# Headers list can be pretty long, xargs helps to avoid
# the "Argument list too long" error.
cmd_check = for f in $(all-files); do \
echo "$(install)/$${f}"; done \
| xargs \
$(PERL) $< $(INSTALL_HDR_PATH)/include $(SRCARCH); \
touch $@
PHONY += __headersinst __headerscheck