openwrt/include/autotools.mk
Matthias Schiffer c364cb8e46
include: autotools: do not symlink files in autoreconf
In Gluon's Github Actions CI, we were occasionally seeing bizarre build
errors that looked like a config.sub file had been corrupted, or changed
while it was being executed.

The cause turned out to be an interaction of the symlinks created by
autoreconf (pointing from individual tools' build dirs into
`staging_dir/host/share/automake-1.16`) and OpenWrt's host-build.mk,
which replaced config.guess and config.sub *after* autoreconf. The
result was that the replacement of these files ended up following the
symlinks and writing the files in `staging_dir/host/share/automake-1.16`
instead of a package's build dir. This could cause other packages' builds
to fail if they were currently executing the scripts while they were
being written.

To fix this, disable autoreconf's symlinking feature, so that modifying
these files in a package's build directory can't accidentally affect the
staged versions.

Link: https://github.com/openwrt/openwrt/pull/15825
Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
2024-08-29 20:04:02 +02:00

171 lines
5.3 KiB
Makefile

# SPDX-License-Identifier: GPL-2.0-only
#
# Copyright (C) 2007-2020 OpenWrt.org
ifneq ($(__autotools_inc),1)
__autotools_inc=1
autoconf_bool = $(patsubst %,$(if $($(1)),--enable,--disable)-%,$(2))
# delete *.la-files from staging_dir - we can not yet remove respective lines within all package
# Makefiles, since backfire still uses libtool v1.5.x which (may) require those files
define libtool_remove_files
find $(1) -name '*.la' | $(XARGS) rm -f;
endef
AM_TOOL_PATHS:= \
AUTOM4TE=$(STAGING_DIR_HOST)/bin/autom4te \
AUTOCONF=$(STAGING_DIR_HOST)/bin/autoconf \
AUTOMAKE=$(STAGING_DIR_HOST)/bin/automake \
ACLOCAL=$(STAGING_DIR_HOST)/bin/aclocal \
AUTOHEADER=$(STAGING_DIR_HOST)/bin/autoheader \
LIBTOOLIZE=$(STAGING_DIR_HOST)/bin/libtoolize \
LIBTOOL=$(STAGING_DIR_HOST)/bin/libtool \
M4=$(STAGING_DIR_HOST)/bin/m4 \
AUTOPOINT=true \
GTKDOCIZE=true
AM_TOOL_PATHS_FAKE:=$(subst = ,=,$(patsubst "%,"$(TRUE)",$(subst =,= ",$(AM_TOOL_PATHS))))
# 1: build dir
# 2: remove files
# 3: automake paths
# 4: libtool paths
# 5: extra m4 dirs
define autoreconf
(cd $(1); \
$(patsubst %,rm -f %;,$(2)) \
$(foreach p,$(3), \
if [ -f $(p)/configure.ac ] || [ -f $(p)/configure.in ]; then \
[ -d $(p)/autom4te.cache ] && rm -rf $(p)/autom4te.cache; \
[ -e $(p)/config.rpath ] || \
ln -s $(SCRIPT_DIR)/config.rpath $(p)/config.rpath; \
touch NEWS AUTHORS COPYING ABOUT-NLS ChangeLog; \
$(AM_TOOL_PATHS) \
LIBTOOLIZE='$(STAGING_DIR_HOST)/bin/libtoolize --install' \
$(STAGING_DIR_HOST)/bin/autoreconf -v -f -i \
$(if $(word 2,$(3)),--no-recursive) \
-B $(STAGING_DIR_HOST)/share/aclocal \
$(patsubst %,-I %,$(5)) \
$(patsubst %,-I %,$(4)) $(p) || true; \
fi; \
) \
);
endef
# 1: build dir
define patch_libtool
@(cd $(1); \
for lt in $$$$($$(STAGING_DIR_HOST)/bin/find . -name ltmain.sh); do \
lt_version="$$$$($$(STAGING_DIR_HOST)/bin/sed -ne 's,^[[:space:]]*VERSION="\?\([0-9]\.[0-9]\+\).*,\1,p' $$$$lt)"; \
case "$$$$lt_version" in \
1.5|2.2|2.4) echo "autotools.mk: Found libtool v$$$$lt_version - applying patch to $$$$lt"; \
(cd $$$$(dirname $$$$lt) && $$(PATCH) -N -s -p1 < $$(TOPDIR)/tools/libtool/files/libtool-v$$$$lt_version.patch || true) ;; \
*) echo "autotools.mk: error: Unsupported libtool version v$$$$lt_version - cannot patch $$$$lt"; exit 1 ;; \
esac; \
done; \
);
endef
define set_libtool_abiver
sed -i \
-e 's,^soname_spec=.*,soname_spec="\\$$$${libname}\\$$$${shared_ext}.$(PKG_ABI_VERSION)",' \
-e 's,^library_names_spec=.*,library_names_spec="\\$$$${libname}\\$$$${shared_ext}.$(PKG_ABI_VERSION) \\$$$${libname}\\$$$${shared_ext}",' \
$(PKG_BUILD_DIR)/libtool
endef
PKG_LIBTOOL_PATHS?=$(CONFIGURE_PATH)
PKG_AUTOMAKE_PATHS?=$(CONFIGURE_PATH)
PKG_MACRO_PATHS?=m4
PKG_REMOVE_FILES?=aclocal.m4
Hooks/InstallDev/Post += libtool_remove_files
define autoreconf_target
$(strip $(call autoreconf, \
$(PKG_BUILD_DIR), $(PKG_REMOVE_FILES), \
$(PKG_AUTOMAKE_PATHS), $(PKG_LIBTOOL_PATHS), \
$(STAGING_DIR)/host/share/aclocal $(STAGING_DIR_HOSTPKG)/share/aclocal $(STAGING_DIR)/usr/share/aclocal $(PKG_MACRO_PATHS)))
endef
define patch_libtool_target
$(strip $(call patch_libtool, \
$(PKG_BUILD_DIR)))
endef
define gettext_version_target
(cd $(PKG_BUILD_DIR) && \
GETTEXT_VERSION=$(shell $(STAGING_DIR_HOSTPKG)/bin/gettext -V | $(STAGING_DIR_HOST)/bin/sed -rne '1s/.*\b([0-9]\.[0-9]+(\.[0-9]+)?)\b.*/\1/p' ) && \
$(STAGING_DIR_HOST)/bin/sed \
-i $(PKG_BUILD_DIR)/configure.ac \
-e "s/AM_GNU_GETTEXT_VERSION(.*)/AM_GNU_GETTEXT_VERSION(\[$$$$GETTEXT_VERSION\])/g" && \
$(STAGING_DIR_HOSTPKG)/bin/autopoint --force \
);
endef
ifneq ($(filter gettext-version,$(PKG_FIXUP)),)
Hooks/Configure/Pre += gettext_version_target
ifeq ($(filter no-autoreconf,$(PKG_FIXUP)),)
Hooks/Configure/Pre += autoreconf_target
endif
endif
ifneq ($(filter patch-libtool,$(PKG_FIXUP)),)
Hooks/Configure/Pre += patch_libtool_target
endif
ifneq ($(filter libtool,$(PKG_FIXUP)),)
PKG_BUILD_DEPENDS += libtool
ifeq ($(filter no-autoreconf,$(PKG_FIXUP)),)
Hooks/Configure/Pre += autoreconf_target
endif
endif
ifneq ($(filter libtool-abiver,$(PKG_FIXUP)),)
Hooks/Configure/Post += set_libtool_abiver
endif
ifneq ($(filter autoreconf,$(PKG_FIXUP)),)
ifeq ($(filter autoreconf,$(Hooks/Configure/Pre)),)
Hooks/Configure/Pre += autoreconf_target
endif
endif
HOST_FIXUP?=$(PKG_FIXUP)
HOST_LIBTOOL_PATHS?=$(if $(PKG_LIBTOOL_PATHS),$(PKG_LIBTOOL_PATHS),.)
HOST_AUTOMAKE_PATHS?=$(if $(PKG_AUTOMAKE_PATHS),$(PKG_AUTOMAKE_PATHS),.)
HOST_MACRO_PATHS?=$(if $(PKG_MACRO_PATHS),$(PKG_MACRO_PATHS),m4)
HOST_REMOVE_FILES?=$(PKG_REMOVE_FILES)
define autoreconf_host
$(strip $(call autoreconf, \
$(HOST_BUILD_DIR), $(HOST_REMOVE_FILES), \
$(HOST_AUTOMAKE_PATHS), $(HOST_LIBTOOL_PATHS), \
$(HOST_MACRO_PATHS)))
endef
define patch_libtool_host
$(strip $(call patch_libtool, \
$(HOST_BUILD_DIR)))
endef
ifneq ($(filter patch-libtool,$(HOST_FIXUP)),)
Hooks/HostConfigure/Pre += patch_libtool_host
endif
ifneq ($(filter libtool,$(HOST_FIXUP)),)
ifeq ($(filter no-autoreconf,$(HOST_FIXUP)),)
Hooks/HostConfigure/Pre += autoreconf_host
endif
endif
ifneq ($(filter autoreconf,$(HOST_FIXUP)),)
ifeq ($(filter autoreconf,$(Hooks/HostConfigure/Pre)),)
Hooks/HostConfigure/Pre += autoreconf_host
endif
endif
endif #__autotools_inc