NetCube-Systems-Austria/kumquat-buildroot
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toolchain/helpers: add check for mandatory uClibc options

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We currently only check that the Buildroot configuration matches what is
available in the toolchain.

Since we're going to remove the check for LFS and make it a mandatory
feature, we will lose the corresponding buildroot option, so we won't be
able to use check_uclibc_feature as-is.

Introduce a magic value passed as the buildroot option name to recognise
checks for mandatory uclibc options that do not have a corresponding
option in buildroot.

If the buildroot option name is empty then the check is against a
mandatory uclibc option.

If a mandatory uclibc option is missing we reject the toolchain as being
unusable by buildroot.

[Thomas: minor tweaks in comment, remove space instead of tab.]

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Gustavo Zacarias 2015-03-30 18:07:20 -03:00 committed by Thomas Petazzoni
parent 0d31b5e41a
commit 1c51a80a7f
1 changed files with 17 additions and 7 deletions
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24
toolchain/helpers.mk
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@ -239,6 +239,9 @@ check_musl = \
# uClibc configuration of the external toolchain, for a particular
# feature.
#
# If 'Buildroot option name' ($2) is empty it means the uClibc option
# is mandatory.
#
# $1: uClibc macro name
# $2: Buildroot option name
# $3: uClibc config file
@ -246,13 +249,20 @@ check_musl = \
#
check_uclibc_feature = \
IS_IN_LIBC=`grep -q "\#define $(1) 1" $(3) && echo y` ; \
if [ "$($(2))" != "y" -a "$${IS_IN_LIBC}" = "y" ] ; then \
echo "$(4) available in C library, please enable $(2)" ; \
exit 1 ; \
fi ; \
if [ "$($(2))" = "y" -a "$${IS_IN_LIBC}" != "y" ] ; then \
echo "$(4) not available in C library, please disable $(2)" ; \
exit 1 ; \
if [ -z "$(2)" ] ; then \
if [ "$${IS_IN_LIBC}" != "y" ] ; then \
echo "$(4) not available in C library, toolchain unsuitable for Buildroot" ; \
exit 1 ; \
fi ; \
else \
if [ "$($(2))" != "y" -a "$${IS_IN_LIBC}" = "y" ] ; then \
echo "$(4) available in C library, please enable $(2)" ; \
exit 1 ; \
fi ; \
if [ "$($(2))" = "y" -a "$${IS_IN_LIBC}" != "y" ] ; then \
echo "$(4) not available in C library, please disable $(2)" ; \
exit 1 ; \
fi ; \
fi
#