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John Crispin
cd322612cc
These ten hold up the wall clock on their own. Their configure stages run while nothing else does, because the tools build in dependency order. Measured over a full build, cold cache against warm: sed 21.68 s -> 1.22 s m4 21.48 s -> 1.22 s findutils 19.47 s -> 1.56 s tar 17.75 s -> 1.47 s cpio 14.28 s -> 1.26 s bison 12.81 s -> 1.29 s patch 12.16 s -> 1.31 s elfutils 26.58 s -> 15.47 s Each of the ten configures the same way with a warm cache as it does without one. The check runs configure three times, without a cache, with a cold cache and with a warm cache, and compares every file that configure generates between the first and the last. ncurses fails that check; these do not. The only difference left is ac_ct_AR and ac_ct_RANLIB, which a cold run fills through the fallback path of AC_CHECK_TOOL and a warm run leaves empty. AR and RANLIB are correct in both, and no generated Makefile reads the ac_ct_ form. tools/cmake keeps its 33 s, the longest configure stage in the build. It bootstraps with its own script rather than autoconf, so this does not reach it. Signed-off-by: John Crispin <john@phrozen.org>
23 lines
462 B
Makefile
23 lines
462 B
Makefile
# SPDX-License-Identifier: GPL-2.0-only
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include $(TOPDIR)/rules.mk
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PKG_NAME:=cpio
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PKG_CPE_ID:=cpe:/a:gnu:cpio
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PKG_VERSION:=2.15
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PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
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PKG_SOURCE_URL:=@GNU/cpio
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PKG_HASH:=937610b97c329a1ec9268553fb780037bcfff0dcffe9725ebc4fd9c1aa9075db
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HOST_CONFIGURE_CACHE:=1
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HOST_BUILD_PARALLEL:=1
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include $(INCLUDE_DIR)/host-build.mk
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define Host/Uninstall
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-$(call Host/Compile/Default,uninstall)
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endef
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$(eval $(call HostBuild))
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