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From e60cc1b011bf0f1acdb7e5168b7bed4ebb78c91f Mon Sep 17 00:00:00 2001
From: Bruce Ashfield <bruce.ashfield@windriver.com>
Date: Wed, 9 Jan 2013 16:24:39 -0500
Subject: [PATCH] scripts/Makefile.headersinst: install headers from scratch file
If headers_install is executed from a deep/long directory structure, the
shell's maximum argument length can be execeeded, which breaks the operation
with:
| make[2]: execvp: /bin/sh: Argument list too long
| make[2]: ***
By dumping the input files to a scratch file and using xargs to read the
input list from the scratch file, we can avoid blowing out the maximum
argument size and install headers in a long path name environment.
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
---
scripts/Makefile.headersinst | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/scripts/Makefile.headersinst b/scripts/Makefile.headersinst
index 06ba4a7..536d722 100644
--- a/scripts/Makefile.headersinst
+++ b/scripts/Makefile.headersinst
@@ -71,7 +71,7 @@ printdir = $(patsubst $(INSTALL_HDR_PATH)/%/,%,$(dir $@))
quiet_cmd_install = INSTALL $(printdir) ($(words $(all-files))\
file$(if $(word 2, $(all-files)),s))
cmd_install = \
- $(PERL) $< $(installdir) $(SRCARCH) $(input-files); \
+ xargs $(PERL) $< $(installdir) $(SRCARCH) < $(INSTALL_HDR_PATH)/.input-files; \
for F in $(wrapper-files); do \
echo "\#include <asm-generic/$$F>" > $(installdir)/$$F; \
done; \
@@ -100,7 +100,9 @@ targets += $(install-file)
$(install-file): scripts/headers_install.pl $(input-files) FORCE
$(if $(unwanted),$(call cmd,remove),)
$(if $(wildcard $(dir $@)),,$(shell mkdir -p $(dir $@)))
+ @echo $(input-files) > $(INSTALL_HDR_PATH)/.input-files
$(call if_changed,install)
+ @rm $(INSTALL_HDR_PATH)/.input-files
else
__headerscheck: $(subdirs) $(check-file)
--
1.7.0.4
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