Files
openwrt/tools/bc/Makefile
T
John Crispin 6eae1d6b77 tools: cache the configure results of eleven more autotools tools
Configure stage without a cache against a warm cache:

  mtools      3.34 s -> 0.28 s
  gengetopt   4.39 s -> 2.13 s
  fakeroot   10.97 s -> 8.73 s
  xz          4.32 s -> 2.17 s
  libressl    3.07 s -> 1.46 s
  flex       12.32 s -> 10.98 s
  expat       2.74 s -> 1.52 s
  bc          1.34 s -> 0.38 s
  dosfstools  3.13 s -> 2.54 s
  libtool     2.86 s -> 2.29 s
  mtd-utils   4.06 s -> 3.56 s

flex, fakeroot, dosfstools and mtd-utils run autoreconf in the same
stage, and the cache does not reach that part.

Each of the eleven configures the same way with a warm cache as it does
without one: the check configures three times, without a cache, with a
cold cache and with a warm cache, and every generated file of the first
and the last run is identical. A static scan of each configure script
found no cache check that changes CFLAGS, CPPFLAGS, LDFLAGS or LIBS
without restoring it.

patchelf, mklibs and automake pass the same check but gain less than
half a second, so they stay out.

make world after make tools/clean now takes 121 s against 177 s with
cold caches.

Signed-off-by: John Crispin <john@phrozen.org>
2026-09-22 20:29:59 +02:00

29 lines
595 B
Makefile

#
# Copyright (C) 2013-2022 OpenWrt.org
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#
include $(TOPDIR)/rules.mk
PKG_NAME:=bc
PKG_VERSION:=1.08.2
PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
PKG_SOURCE_URL:=@GNU/bc
PKG_HASH:=ae470fec429775653e042015edc928d07c8c3b2fc59765172a330d3d87785f86
PKG_CPE_ID:=cpe:/a:gnu:bc
PKG_SUBDIRS:=lib bc dc
HOST_CONFIGURE_CACHE:=1
include $(INCLUDE_DIR)/host-build.mk
define Host/Uninstall
-$(call Host/Compile/Default,uninstall SUBDIRS='lib bc dc')
endef
$(eval $(call HostBuild))