Hi all, There is a gcc version detection bug in `make/autoconf/toolchain.m4`. Before this PR, the gcc version detection shell command is:
gcc --version 2>&1 | tr "\n" " " | sed -e 's/ *Copyright .*//' | sed -e 's/^.* ([1-9][0-9]*.[0-9.]*)[^0-9.].*$/\1/' And this gcc version detection command can't work on some linux distribution such as alinux3(Alibaba Cloud Linux 3.2104). The `gcc --version` first line output is `gcc (GCC) 10.2.1 20200825 (Alibaba 10.2.1-3.8 2.32)`, the original command get gcc version as `2.32`, but the actual version is `10.2.1` ------------- Commit messages: - 8341806: Gcc version detection failure on Alinux3 Changes: https://git.openjdk.org/jdk/pull/21421/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=21421&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8341806 Stats: 7 lines in 1 file changed: 6 ins; 0 del; 1 mod Patch: https://git.openjdk.org/jdk/pull/21421.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/21421/head:pull/21421 PR: https://git.openjdk.org/jdk/pull/21421
