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| author | Thomas Petazzoni <thomas.petazzoni@bootlin.com> | 2019-01-10 22:15:00 +0100 |
|---|---|---|
| committer | Peter Korsgaard <peter@korsgaard.com> | 2019-01-16 23:39:28 +0100 |
| commit | 71a31b23570f343432ad042979e1a20f42d562a0 (patch) | |
| tree | 689ab2d6d3c26963c051b380b39c4621fdd8f0c1 | |
| parent | 9d684a096718eb0020550827f9641dca3f4ed06e (diff) | |
| download | buildroot-71a31b23570f343432ad042979e1a20f42d562a0.tar.gz buildroot-71a31b23570f343432ad042979e1a20f42d562a0.zip | |
linux: use HOSTCC_NOCCACHE as kconfig HOSTCC
linux is a bit different than other kconfig-package, because it has
"toolchain" in KCONFIG_DEPENDENCIES. Thanks to this, host-ccache *is*
ready by the time kconfig invocations are made, so we could use
$(HOSTCC) as the host compiler for kconfig related operations.
However, for consistency with other kconfig-package packages, we chose
to use $(HOSTCC_NOCCACHE) as well.
We cannot rely on the default value of HOSTCC passed by the
kconfig-package infrastructure, because $(LINUX_MAKE_FLAGS) also
contains a HOSTCC definition that would override the one passed by the
kconfig-package infrastructure.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
| -rw-r--r-- | linux/linux.mk | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/linux/linux.mk b/linux/linux.mk index 6bf2b88038..02def89113 100644 --- a/linux/linux.mk +++ b/linux/linux.mk @@ -269,13 +269,16 @@ endif LINUX_KCONFIG_FRAGMENT_FILES = $(call qstrip,$(BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES)) LINUX_KCONFIG_EDITORS = menuconfig xconfig gconfig nconfig -# LINUX_MAKE_FLAGS overrides HOSTCC to allow the kernel build to find our -# host-openssl and host-libelf. However, this triggers a bug in the kconfig -# build script that causes it to build with /usr/include/ncurses.h (which is -# typically wchar) but link with $(HOST_DIR)/lib/libncurses.so (which is not). -# We don't actually need any host-package for kconfig, so remove the HOSTCC -# override again. -LINUX_KCONFIG_OPTS = $(LINUX_MAKE_FLAGS) HOSTCC="$(HOSTCC)" +# LINUX_MAKE_FLAGS overrides HOSTCC to allow the kernel build to find +# our host-openssl and host-libelf. However, this triggers a bug in +# the kconfig build script that causes it to build with +# /usr/include/ncurses.h (which is typically wchar) but link with +# $(HOST_DIR)/lib/libncurses.so (which is not). We don't actually +# need any host-package for kconfig, so remove the HOSTCC override +# again. In addition, even though linux depends on the toolchain and +# therefore host-ccache would be ready, we use HOSTCC_NOCCACHE for +# consistency with other kconfig packages. +LINUX_KCONFIG_OPTS = $(LINUX_MAKE_FLAGS) HOSTCC="$(HOSTCC_NOCCACHE)" # If no package has yet set it, set it from the Kconfig option LINUX_NEEDS_MODULES ?= $(BR2_LINUX_NEEDS_MODULES) |
