commit:     61f0eab4e3c0272449024e83f32734b0e6d392bb
Author:     Sam James <sam <AT> gentoo <DOT> org>
AuthorDate: Tue Oct 11 19:55:40 2022 +0000
Commit:     Sam James <sam <AT> gentoo <DOT> org>
CommitDate: Thu Oct 13 19:57:54 2022 +0000
URL:        https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=61f0eab4

kernel-build.eclass: use pigz for parallel compression if available

Note that this will only take effect if compressing modules with gzip
(COMPRESS_MODULE_GZIP is set) or compressing the kernel with gzip
(CONFIG_KERNEL_GZIP is set).

Signed-off-by: Sam James <sam <AT> gentoo.org>

 eclass/kernel-build.eclass | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/eclass/kernel-build.eclass b/eclass/kernel-build.eclass
index 936258e9e8af..faf36d763d08 100644
--- a/eclass/kernel-build.eclass
+++ b/eclass/kernel-build.eclass
@@ -98,6 +98,13 @@ kernel-build_src_configure() {
                export ZSTD_NBTHREADS="$(makeopts_jobs)"
        fi
 
+       # pigz needs to take an argument, not an env var,
+       # for its options, which won't work because of how the kernel build 
system
+       # uses the variables (e.g. passes directly to tar as an executable).
+       if type -P pigz ; then
+               MAKEARGS+=( KGZIP="pigz" )
+       fi
+
        restore_config .config
        [[ -f .config ]] || die "Ebuild error: please copy default config into 
.config"
 

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