kumquat-buildroot/support/config-fragments/autobuild/br-riscv64.config
Thomas Petazzoni dc938c221d support/config-fragments/autobuild: set gcc version for RISC-V toolchains
Prior to b3ba26150d
("toolchain/toolchain-external/toolchain-external-custom: be more
flexible on gcc version"), the default gcc version selected by
Buildroot for custom external toolchain was affected by the
BR2_ARCH_NEEDS_GCC_AT_LEAST_xyz definitions.

Since BR2_riscv selects BR2_ARCH_NEEDS_GCC_AT_LEAST_7, gcc 7.x was the
default gcc version assumed to be used in a custom RISC-V external
toolchain, so our config snippets for RISC-V toolchains were correct.

With b3ba26150d applied, the default gcc
version assumed for custom external toolchains is the latest one
(currently gcc 9.x), while our RISC-V toolchains use gcc 7.x. So we
now need to explicitly give the gcc version used by our RISC-V
toolchains, otherwise the build fails with:

  Incorrect selection of gcc version: expected 9.x, got 7.4.0

Fixes:

  http://autobuild.buildroot.net/results/b872befe1adec2633b9cbcc49bc0eb7619f606c2/

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2019-08-04 08:55:10 +02:00

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BR2_riscv=y
BR2_TOOLCHAIN_EXTERNAL=y
BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.net/toolchains/tarballs/br-riscv64-glibc-2019.05.1.tar.bz2"
BR2_TOOLCHAIN_EXTERNAL_GCC_7=y
BR2_TOOLCHAIN_EXTERNAL_HEADERS_5_1=y
BR2_TOOLCHAIN_EXTERNAL_CUSTOM_GLIBC=y
BR2_TOOLCHAIN_EXTERNAL_CXX=y