On Tue, 12 Nov 2024 13:21:04 GMT, Magnus Ihse Bursie <i...@openjdk.org> wrote:

>> Hi all,
>> After [JDK-8338304](https://bugs.openjdk.org/browse/JDK-8338304), below 
>> configure command will generate failure `error: Could not find required tool 
>> for LLD`. The lld linker located in path which config with option 
>> `--with-toolchain-path`, but the check `UTIL_REQUIRE_PROGS(LLD, lld)` 
>> introduced by [JDK-8338304](https://bugs.openjdk.org/browse/JDK-8338304) was 
>> unable to find the lld. This PR add the condition to deal with user 
>> specidied `--with-toolchain-path` to find the correct lld fullpath. The 
>> change has beeen verified locally, trivial fix, the risk is low.
>> 
>> 
>> bash configure --with-jobs=128 --with-debug-level=release 
>> --enable-unlimited-crypto --with-jvm-variants=server 
>> --with-version-opt=f4008968 --with-zlib=system --with-toolchain-type=clang 
>> --with-toolchain-path=/home/yansendao/software/acc/x86_64/bin
>
> make/autoconf/flags-ldflags.m4 line 78:
> 
>> 76:       if test "x$CXX_IS_USER_SUPPLIED" = xfalse && test 
>> "x$CC_IS_USER_SUPPLIED" = xfalse; then
>> 77:         if test "x$TOOLCHAIN_PATH" != x; then
>> 78:           UTIL_REQUIRE_PROGS(LLD, lld, $TOOLCHAIN_PATH)
> 
> No, this is not correct. Did you test this patch *without* having lld in the 
> toolchain path? Doing this will remove the normal lookup in `$PATH` and only 
> look in `$TOOLCHAIN_PATH`.

After I remove the lld binary from `$TOOLCHAIN_PATH`, such as `mv 
/home/yansendao/software/acc/x86_64/bin/lld /tmp/`, the configure command 
generate `configure: error: Could not find required tool for LLD` as expected.

-------------

PR Review Comment: https://git.openjdk.org/jdk/pull/21999#discussion_r1838257682

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