diff options
| author | Arnout Vandecappelle <arnout@mind.be> | 2016-11-24 00:40:34 +0100 |
|---|---|---|
| committer | Thomas Petazzoni <thomas.petazzoni@free-electrons.com> | 2016-11-25 22:59:10 +0100 |
| commit | 006ba68a3020477e8358eb0253acaf15220b84b5 (patch) | |
| tree | 34763f82a2c776bcd157d81537ed53b50f83b390 /toolchain | |
| parent | abeab9ce934ad26785d476492d06b3ad38000f41 (diff) | |
toolchain-external: support gcc < 4.3
We currently support gcc as old as 4.3. However, Buildroot works
perfectly well with even older gcc versions (tested with 4.1). So we
can add an option BR2_TOOLCHAIN_EXTERNAL_GCC_OLD to support that. The
help text of this option is written with plenty of discouragement.
We use _OLD and not something like _PRE_4_3, because at some point we
will likely remove the 4.3 option and what would then require a name
change.
We don't set any _AT_LEAST option in this case because it's no use -
there is no lower bound on the version in this case. We therefore leave
BR2_TOOLCHAIN_GCC_AT_LEAST empty (the implicit default). When it is
empty, we don't do a version check at all in check_gcc_version
(previously we errored out when it was empty).
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Diffstat (limited to 'toolchain')
| -rw-r--r-- | toolchain/helpers.mk | 3 | ||||
| -rw-r--r-- | toolchain/toolchain-external/toolchain-external-custom/Config.in.options | 11 |
2 files changed, 12 insertions, 2 deletions
diff --git a/toolchain/helpers.mk b/toolchain/helpers.mk index 3991bc1cf..72e729235 100644 --- a/toolchain/helpers.mk +++ b/toolchain/helpers.mk @@ -145,8 +145,7 @@ check_kernel_headers_version = \ check_gcc_version = \ expected_version="$(strip $2)" ; \ if [ -z "$${expected_version}" ]; then \ - printf "Internal error, gcc version unknown (no GCC_AT_LEAST_X_Y selected)\n"; \ - exit 1 ; \ + exit 0 ; \ fi; \ real_version=`$(1) --version | sed -r -e '1!d; s/^[^)]+\) ([^[:space:]]+).*/\1/;'` ; \ if [[ ! "$${real_version}" =~ ^$${expected_version}\. ]] ; then \ diff --git a/toolchain/toolchain-external/toolchain-external-custom/Config.in.options b/toolchain/toolchain-external/toolchain-external-custom/Config.in.options index cdc25559f..5ff2491e1 100644 --- a/toolchain/toolchain-external/toolchain-external-custom/Config.in.options +++ b/toolchain/toolchain-external/toolchain-external-custom/Config.in.options @@ -59,6 +59,17 @@ config BR2_TOOLCHAIN_EXTERNAL_GCC_4_3 bool "4.3.x" select BR2_TOOLCHAIN_GCC_AT_LEAST_4_3 +config BR2_TOOLCHAIN_EXTERNAL_GCC_OLD + bool "older" + help + Use this option if your GCC version is older than any of the + above. + + Note that the Buildroot community doesn't do any testing with + such old toolchains. Some packages may fail to build in + surprising ways, or the generated root filesystem may not + work at all. Use such old toolchains at your own risk. + endchoice choice |