Files
openwrt/tools/mtools/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

41 lines
911 B
Makefile

#
# Copyright (C) 2012-2013 OpenWrt.org
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#
include $(TOPDIR)/rules.mk
PKG_NAME:=mtools
PKG_VERSION:=4.0.49
PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
PKG_SOURCE_URL:=@GNU/$(PKG_NAME)
PKG_HASH:=6fe5193583d6e7c59da75e63d7234f76c0b07caf33b103894f46f66a871ffc9f
HOST_BUILD_PARALLEL:=1
HOST_CONFIGURE_CACHE:=1
include $(INCLUDE_DIR)/host-build.mk
HOST_CONFIGURE_ARGS += --without-x
HOST_CONFIGURE_VARS += \
ac_cv_header_iconv_h=no
define Host/Compile
+$(MAKE) $(HOST_JOBS) -C $(HOST_BUILD_DIR) mcopy mmd
endef
define Host/Install
$(INSTALL_BIN) $(HOST_BUILD_DIR)/mcopy $(STAGING_DIR_HOST)/bin/
$(INSTALL_BIN) $(HOST_BUILD_DIR)/mmd $(STAGING_DIR_HOST)/bin/
endef
define Host/Clean
rm -f $(STAGING_DIR_HOST)/bin/mcopy
rm -f $(STAGING_DIR_HOST)/bin/mmd
endef
$(eval $(call HostBuild))