Commit 2f263d14 authored Jun 15, 2017 by Richard Genoud Committed by Masahiro Yamada Jun 22, 2017

kbuild: fix header installation under fakechroot environment



Since commit fcc8487d ("uapi: export all headers under uapi
directories") fakechroot make bindeb-pkg fails, mismatching files for
directories:
touch: cannot touch 'usr/include/video/uvesafb.h/.install': Not a
directory

This due to a bug in fakechroot:
when using the function $(wildcard $(srcdir)/*/.) in a makefile, under a
fakechroot environment, not only directories but also files are
returned.

To circumvent that, we are using the functions:
$(sort $(dir $(wildcard $(srcdir)/*/))))

Fixes: fcc8487d ("uapi: export all headers under uapi directories")
Signed-off-by: Richard Genoud <richard.genoud@gmail.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

parent ff85a1a8

scripts/Makefile.headersinst

+9 −1

Original line number	Diff line number	Diff line
		@@ -14,7 +14,15 @@ __headers:
		include scripts/Kbuild.include

		srcdir := $(srctree)/$(obj)
		subdirs := $(patsubst $(srcdir)/%/.,%,$(wildcard $(srcdir)/*/.))

		# When make is run under a fakechroot environment, the function
		# $(wildcard $(srcdir)/*/.) doesn't only return directories, but also regular
		# files. So, we are using a combination of sort/dir/wildcard which works
		# with fakechroot.
		subdirs := $(patsubst $(srcdir)/%/,%,\
		$(filter-out $(srcdir)/,\
		$(sort $(dir $(wildcard $(srcdir)/*/)))))

		# caller may set destination dir (when installing to asm/)
		_dst := $(if $(dst),$(dst),$(obj))