[OE-core] [PATCH v2] linux-libc-headers: Don't do useless configuration

[Alexey Brodkin]

There's no point in configuring Linux kernel before
headers installation.

Moreover in come cases it might lead to problems on kernels
starting from 4.17 with architecture or platfrom sets
CROSS_COMPILE variable automatically, see [1].

Also note Buildroot doesn't do that kind of confiuration as
well, see [2].

And while at it convert empty do_compile to noexec as well.

[1] https://lkml.org/lkml/2018/9/12/486
[2] https://git.buildroot.org/buildroot/tree/package/linux-headers/linux-headers.mk#n106

Signed-off-by: Alexey Brodkin <abrodkin at synopsys.com>
---

Changes v1 -> v2:
 * Use noexec approach for do_configure
 * Convert do_compile to noexec as well

 .../linux-libc-headers/linux-libc-headers.inc              | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/meta/recipes-kernel/linux-libc-headers/linux-libc-headers.inc b/meta/recipes-kernel/linux-libc-headers/linux-libc-headers.inc
index 05c82558e653..be215af9b953 100644
--- a/meta/recipes-kernel/linux-libc-headers/linux-libc-headers.inc
+++ b/meta/recipes-kernel/linux-libc-headers/linux-libc-headers.inc
@@ -53,12 +53,9 @@ S = "${WORKDIR}/linux-${PV}"
 
 EXTRA_OEMAKE = " HOSTCC="${BUILD_CC}" HOSTCPP="${BUILD_CPP}""
 
-do_configure() {
-	oe_runmake allnoconfig
-}
+do_configure[noexec] = "1"
 
-do_compile () {
-}
+do_compile[noexec] = "1"
 
 do_install() {
 	oe_runmake headers_install INSTALL_HDR_PATH=${D}${exec_prefix}
-- 
2.17.1