On Mon, 31 Jul 2023 04:40:58 GMT, Jan Kratochvil <jkratoch...@openjdk.org> wrote:
>> https://bugs.openjdk.org/browse/JDK-8313374 >> --enable-ccache's CCACHE_BASEDIR breaks builds > > Jan Kratochvil has updated the pull request incrementally with one additional > commit since the last revision: > > Try not to remove CCACHE_BASEDIR. OK so the real problem is: - OpenJDK makefiles operate with absolute paths to the target objects files. - Dependency files (`*.d`) switch to relative paths to everything by turning on `CCACHE_BASEDIR`. - `make` does not find a relative vs. absolute filename of the target to be the same as `make` does just a string comparison, not filesystem inode comparison. When trying to fix it I have found `$(FILE_MACRO_CFLAGS)` is on my system `-fmacro-prefix-map=/home/user/jdk-src-dir/=`. I do not see why it was implemented this way by JDK-8226346 (and I cannot see this Bug). So I have removed it. ------------- PR Comment: https://git.openjdk.org/jdk/pull/15080#issuecomment-1657564778
