kbuild: make samples depend on headers_install
Olof's build test setup keeps failing to compile arm64 kernels
because of a toolchain that uses outdated kernel headers:
/work/build/batch/samples/seccomp/bpf-fancy.c:13:27: fatal error: linux/seccomp.h: No such file or directory
This is of course something he could change, but it also indicates
that others may run into the same problem. Running 'make headers_install'
avoids the issue by ensuring that the kernel headers are put into
the $(objdir)/usr/include path before we build the samples.
The same problem happened for the Documentation build in the
past and was fixed up with commit 8e2faea877eb ("Make Documenation
depend on headers_install"). This adds an identical Makefile dependency
for the samples/ subdirectory.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Michal Marek <mmarek@suse.com>
diff --git a/Makefile b/Makefile
index 64684b1..7aa6f8c 100644
--- a/Makefile
+++ b/Makefile
@@ -1620,7 +1620,7 @@
$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
$(build)=$(build-dir)
# Make sure the latest headers are built for Documentation
-Documentation/: headers_install
+Documentation/ samples/: headers_install
%/: prepare scripts FORCE
$(cmd_crmodverdir)
$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \