John Crispin 0f05c481fd tools: pass the job server to the compile step of mtools, mkimage and lzma ...

host-build.mk clears MAKEFLAGS, so a custom Host/Compile that runs a bare
$(MAKE) builds with one job, whatever HOST_BUILD_PARALLEL says. mtools
sets the flag, but its compile step never used it.

Each of the three now passes $(HOST_JOBS), and mkimage and lzma set
HOST_BUILD_PARALLEL:

  mkimage  11.7 s -> 7.2 s
  mtools    8.3 s -> 4.8 s
  lzma      4.0 s -> 1.8 s

Each one builds five times out of five with the job server, and each
build installs files that are identical to those of a serial build.

Signed-off-by: John Crispin <john@phrozen.org>

2026-09-22 20:29:59 +02:00

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patches

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Makefile

tools: pass the job server to the compile step of mtools, mkimage and lzma

2026-09-22 20:29:59 +02:00