49 lines
1.9 KiB
Diff
49 lines
1.9 KiB
Diff
From: Matthias Schiffer <mschiffer@universe-factory.net>
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Date: Wed, 15 Jun 2016 19:31:34 +0200
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Subject: build: don't add -j for parallel builds with Make 4.2+
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Make usually passes -j and jobserver arguments as part of MAKEFLAGS. LEDE
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removes MAKEFLAGS to have better control of the build, and re-adds the
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jobserver arguments with -j to the Make commandline where desired.
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Make 4.2+ behave differently with these arguments passed on the commandline
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than in MAKEFLAGS: -j will override the jobserver argument and the job
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count will be unlimited.
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Moving the flags to MAKEFLAGS will need many packages to be changed and
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tested; therefore, we opt for a less invasive change for now and just
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remove -j for Make 4.2+, as the jobserver argument alone is enough to
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enable parallel builds for these Make versions.
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Signed-off-by: Jo-Philipp Wich <jo@mein.io>
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Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
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Backport of LEDE 6fb212f2933bbbdf2935124205717c9d0ca72b32
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diff --git a/include/host-build.mk b/include/host-build.mk
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index e2b5f2f..44401b8 100644
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--- a/include/host-build.mk
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+++ b/include/host-build.mk
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@@ -10,7 +10,7 @@ HOST_INSTALL_DIR ?= $(HOST_BUILD_DIR)/host-install
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HOST_BUILD_PARALLEL ?=
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ifneq ($(CONFIG_PKG_BUILD_USE_JOBSERVER),)
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- HOST_MAKE_J:=$(if $(MAKE_JOBSERVER),$(MAKE_JOBSERVER) -j)
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+ HOST_MAKE_J:=$(if $(MAKE_JOBSERVER),$(MAKE_JOBSERVER) $(if $(filter 3.% 4.0 4.1,$(MAKE_VERSION)),-j))
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else
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HOST_MAKE_J:=-j$(CONFIG_PKG_BUILD_JOBS)
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endif
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diff --git a/include/package.mk b/include/package.mk
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index c69d928..a99cdc6 100644
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--- a/include/package.mk
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+++ b/include/package.mk
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@@ -23,7 +23,7 @@ PKG_RELRO_PARTIAL ?= 1
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PKG_RELRO_FULL ?= 1
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ifneq ($(CONFIG_PKG_BUILD_USE_JOBSERVER),)
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- MAKE_J:=$(if $(MAKE_JOBSERVER),$(MAKE_JOBSERVER) -j)
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+ MAKE_J:=$(if $(MAKE_JOBSERVER),$(MAKE_JOBSERVER) $(if $(filter 3.% 4.0 4.1,$(MAKE_VERSION)),-j))
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else
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MAKE_J:=-j$(CONFIG_PKG_BUILD_JOBS)
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endif
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