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linux: add BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL

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Some Linux kernel configuration options (such as
CONFIG_SYSTEM_TRUSTED_KEYRING) require building a host program called
extract-cert, which itself needs OpenSSL.

Users having OpenSSL installed on their system won't see a problem,
but users who don't have OpenSSL installed will get a build
failure. This commit adds a new option that allows users to indicate
that their Linux configuration requires building host-openssl.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit is contained in:
Thomas Petazzoni 2018-03-04 22:31:15 +01:00 committed by Peter Korsgaard
parent dde090c299
commit 93a7edf4bc
2 changed files with 17 additions and 0 deletions
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13
linux/Config.in
View File

@ -407,6 +407,19 @@ config BR2_LINUX_KERNEL_INSTALL_TARGET
/boot if DTBs have been generated by the kernel build
process.
config BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL
bool "Needs host OpenSSL"
help
Some Linux kernel configuration options (such as
CONFIG_SYSTEM_TRUSTED_KEYRING) require building a host
program called extract-cert, which itself needs
OpenSSL. Enabling this option will ensure host-openssl gets
built before the Linux kernel.
Enable this option if you get a Linux kernel build failure
such as "scripts/extract-cert.c:21:25: fatal error:
openssl/bio.h: No such file or directory".
# Linux extensions
source "linux/Config.ext.in"

4
linux/linux.mk
View File

@ -80,6 +80,10 @@ LINUX_COMPRESSION_OPT_$(BR2_LINUX_KERNEL_LZMA) += CONFIG_KERNEL_LZMA
LINUX_COMPRESSION_OPT_$(BR2_LINUX_KERNEL_LZO) += CONFIG_KERNEL_LZO
LINUX_COMPRESSION_OPT_$(BR2_LINUX_KERNEL_XZ) += CONFIG_KERNEL_XZ
ifeq ($(BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL),y)
LINUX_DEPENDENCIES += host-openssl
endif
# If host-uboot-tools is selected by the user, assume it is needed to
# create a custom image
ifeq ($(BR2_PACKAGE_HOST_UBOOT_TOOLS),y)