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core: support host gcc of the future

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When we do a release, we know only of a set of gcc versions that the
host may have. But in the future, distributions with newer gcc versions
may show up.

Currently, we do not recognise those versions, and thus we do as if they
were older than the oldest we know of. This means that a set of packages
become unselectable, when they should be.

We fix that by capping the detected version to the highest we know of.

Reported-by: gargar_ on IRC
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Peter Korsgaard <peter@korsgaard.com>
Cc: Arnout Vandecappelle <arnout@mind.be>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit is contained in:
Yann E. MORIN 2018-10-23 11:08:40 +02:00 committed by Peter Korsgaard
parent f3b058ddb1
commit 3950e69dad
2 changed files with 11 additions and 2 deletions
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3
Config.in
View File

@ -67,6 +67,9 @@ config BR2_HOST_GCC_AT_LEAST_8
default y if BR2_HOST_GCC_VERSION = "8"
select BR2_HOST_GCC_AT_LEAST_7
# When adding new entries above, be sure to update
# the HOSTCC_MAX_VERSION variable in the Makefile.
# Hidden boolean selected by packages in need of Java in order to build
# (example: kodi)
config BR2_NEEDS_HOST_JAVA

10
Makefile
View File

@ -351,8 +351,14 @@ export HOSTARCH := $(shell LC_ALL=C $(HOSTCC_NOCCACHE) -v 2>&1 | \
-e 's/macppc/powerpc/' \
-e 's/sh.*/sh/' )
HOSTCC_VERSION := $(shell $(HOSTCC_NOCCACHE) --version | \
sed -n -r 's/^.* ([0-9]*)\.([0-9]*)\.([0-9]*)[ ]*.*/\1 \2/p')
# When adding a new host gcc version in Config.in,
# update the HOSTCC_MAX_VERSION variable:
HOSTCC_MAX_VERSION := 8
HOSTCC_VERSION := $(shell V=$$($(HOSTCC_NOCCACHE) --version | \
sed -n -r 's/^.* ([0-9]*)\.([0-9]*)\.([0-9]*)[ ]*.*/\1 \2/p'); \
[ "$${V%% *}" -le $(HOSTCC_MAX_VERSION) ] || V=$(HOSTCC_MAX_VERSION); \
printf "%s" "$${V}")
# For gcc >= 5.x, we only need the major version.
ifneq ($(firstword $(HOSTCC_VERSION)),4)