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PR target/98152: Checking python is available before using

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We'll try to canonicalize the arch string for --with-arch,
and the script is written in python, however it will turns out
GCC require python to build for RISC-V port, it's not expect as
the GCC requirement.

So this patch is made this as optional, detect python and only use it
when it available, it won't break any functionality with out doing
canonicalization, just might build one more redundant multi-lib.

gcc/ChangeLog:

	PR target/98152
	* config.gcc (riscv*-*-*): Checking python, python3 or python2
	is available, and skip doing with_arch canonicalize if no python
	available.
This commit is contained in:
Kito Cheng 2020-12-06 11:39:22 +08:00
parent 9121f80841
commit 4aaf33718f
1 changed files with 4 additions and 1 deletions
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5
gcc/config.gcc
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@ -4623,7 +4623,10 @@ case "${target}" in
exit 1
;;
esac
with_arch=`${srcdir}/config/riscv/arch-canonicalize ${with_arch}`
PYTHON=`which python || which python3 || which python2`
if test "x${PYTHON}" != x; then
with_arch=`${PYTHON} ${srcdir}/config/riscv/arch-canonicalize ${with_arch}`
fi
tm_defines="${tm_defines} TARGET_RISCV_DEFAULT_ARCH=${with_arch}"
# Make sure --with-abi is valid. If it was not specified,