From patchwork Wed Sep 13 09:52:14 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yang Yujie X-Patchwork-Id: 1833450 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=gcc.gnu.org (client-ip=2620:52:3:1:0:246e:9693:128c; helo=server2.sourceware.org; envelope-from=gcc-patches-bounces+incoming=patchwork.ozlabs.org@gcc.gnu.org; receiver=patchwork.ozlabs.org) Received: from server2.sourceware.org (server2.sourceware.org [IPv6:2620:52:3:1:0:246e:9693:128c]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (secp384r1) server-digest SHA384) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4Rlwjn1YJWz1yh0 for ; Wed, 13 Sep 2023 19:52:43 +1000 (AEST) Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 2DA6F3853D23 for ; Wed, 13 Sep 2023 09:52:39 +0000 (GMT) X-Original-To: gcc-patches@gcc.gnu.org Delivered-To: gcc-patches@gcc.gnu.org Received: from mail.loongson.cn (mail.loongson.cn [114.242.206.163]) by sourceware.org (Postfix) with ESMTP id 704D23858402 for ; Wed, 13 Sep 2023 09:52:21 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 704D23858402 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=loongson.cn Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=loongson.cn Received: from loongson.cn (unknown [192.168.100.1]) by gateway (Coremail) with SMTP id _____8DxfetRhgFlqFMmAA--.6461S3; Wed, 13 Sep 2023 17:52:17 +0800 (CST) Received: from localhost.localdomain (unknown [192.168.100.1]) by localhost.localdomain (Coremail) with SMTP id AQAAf8DxT91PhgFlgXUCAA--.283S2; Wed, 13 Sep 2023 17:52:15 +0800 (CST) From: Yang Yujie To: gcc-patches@gcc.gnu.org Cc: chenglulu@loongson.cn, xry111@xry111.site, richard.sandiford@arm.com, xuchenghua@loongson.cn, Yang Yujie Subject: [PATCH] LoongArch: Reimplement multilib build option handling. Date: Wed, 13 Sep 2023 17:52:14 +0800 Message-ID: <20230913095214.125470-1-yangyujie@loongson.cn> X-Mailer: git-send-email 2.41.0 MIME-Version: 1.0 X-CM-TRANSID: AQAAf8DxT91PhgFlgXUCAA--.283S2 X-CM-SenderInfo: 51dqw5pxmlvqxorr0wxvrqhubq/ X-Coremail-Antispam: 1Uk129KBj9fXoWfGw4xAFW8tw1rWr4rAFWDGFX_yoW8Wry8Xo ZIyFW7Zw18Gr1S9w409rn8Xr9rXr1Fvw4xA39ru34kGF4kJF98GF9rKwsYvFy7XFWktFyr Ja4jgws5JayfJFn8l-sFpf9Il3svdjkaLaAFLSUrUUUUUb8apTn2vfkv8UJUUUU8wcxFpf 9Il3svdxBIdaVrn0xqx4xG64xvF2IEw4CE5I8CrVC2j2Jv73VFW2AGmfu7bjvjm3AaLaJ3 UjIYCTnIWjp_UUUY17kC6x804xWl14x267AKxVWUJVW8JwAFc2x0x2IEx4CE42xK8VAvwI 8IcIk0rVWrJVCq3wAFIxvE14AKwVWUGVWUXwA2ocxC64kIII0Yj41l84x0c7CEw4AK67xG Y2AK021l84ACjcxK6xIIjxv20xvE14v26r1j6r1xM28EF7xvwVC0I7IYx2IY6xkF7I0E14 v26r1j6r4UM28EF7xvwVC2z280aVAFwI0_Gr1j6F4UJwA2z4x0Y4vEx4A2jsIEc7CjxVAF wI0_Gr1j6F4UJwAS0I0E0xvYzxvE52x082IY62kv0487Mc804VCY07AIYIkI8VC2zVCFFI 0UMc02F40EFcxC0VAKzVAqx4xG6I80ewAv7VC0I7IYx2IY67AKxVWUJVWUGwAv7VC2z280 aVAFwI0_Gr0_Cr1lOx8S6xCaFVCjc4AY6r1j6r4UM4x0Y48IcxkI7VAKI48JMxAIw28Icx kI7VAKI48JMxC20s026xCaFVCjc4AY6r1j6r4UMI8I3I0E5I8CrVAFwI0_Jr0_Jr4lx2Iq xVCjr7xvwVAFwI0_JrI_JrWlx4CE17CEb7AF67AKxVWUAVWUtwCIc40Y0x0EwIxGrwCI42 IY6xIIjxv20xvE14v26r1j6r1xMIIF0xvE2Ix0cI8IcVCY1x0267AKxVWUJVW8JwCI42IY 6xAIw20EY4v20xvaj40_Jr0_JF4lIxAIcVC2z280aVAFwI0_Jr0_Gr1lIxAIcVC2z280aV CY1x0267AKxVWUJVW8JbIYCTnIWIevJa73UjIFyTuYvjxUcyxRUUUUU X-Spam-Status: No, score=-12.2 required=5.0 tests=BAYES_00, GIT_PATCH_0, KAM_DMARC_STATUS, KAM_SHORT, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org X-BeenThere: gcc-patches@gcc.gnu.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Gcc-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: gcc-patches-bounces+incoming=patchwork.ozlabs.org@gcc.gnu.org Sender: "Gcc-patches" Library build options from --with-multilib-list used to be processed with *self_spec, which missed the driver's initial canonicalization. This caused limitations on CFLAGS override and the use of driver-only options like -m[no]-lsx. The problem is solved by promoting the injection rules of --with-multilib-list options to the first element of DRIVER_SELF_SPECS, to make them execute before the canonialization. The library-build options are also hard-coded in the driver and can be used conveniently by the builders of other non-gcc libraries via the use of -fmultiflags. Bootstrapped and tested on loongarch64-linux-gnu. ChangeLog: * config-ml.in: Remove unneeded loongarch clause. * configure.ac: Register custom makefile fragments mt-loongarch-* for loongarch targets. * configure: Regenerate. config/ChangeLog: * mt-loongarch-mlib: New file. Pass -fmultiflags when building target libraries (FLAGS_FOR_TARGET). * mt-loongarch-elf: New file. * mt-loongarch-gnu: New file. gcc/ChangeLog: * config.gcc: Pass the default ABI via TM_MULTILIB_CONFIG. * config/loongarch/loongarch-driver.h: Invoke MLIB_SELF_SPECS before the driver canonicalization routines. * config/loongarch/loongarch.h: Move definitions of CC1_SPEC etc. to loongarch-driver.h * config/loongarch/t-linux: Move multilib-related definitions to t-multilib. * config/loongarch/t-multilib: New file. Inject library build options obtained from --with-multilib-list. * config/loongarch/t-loongarch: Same. --- config-ml.in | 10 ---- config/mt-loongarch-elf | 1 + config/mt-loongarch-gnu | 2 + config/mt-loongarch-mlib | 1 + configure | 6 +++ configure.ac | 6 +++ gcc/config.gcc | 6 +-- gcc/config/loongarch/loongarch-driver.h | 42 +++++++++++++++ gcc/config/loongarch/loongarch.h | 50 ------------------ gcc/config/loongarch/t-linux | 66 +++--------------------- gcc/config/loongarch/t-loongarch | 2 +- gcc/config/loongarch/t-multilib | 68 +++++++++++++++++++++++++ 12 files changed, 137 insertions(+), 123 deletions(-) create mode 100644 config/mt-loongarch-elf create mode 100644 config/mt-loongarch-gnu create mode 100644 config/mt-loongarch-mlib create mode 100644 gcc/config/loongarch/t-multilib diff --git a/config-ml.in b/config-ml.in index ad0db078171..68854a4f16c 100644 --- a/config-ml.in +++ b/config-ml.in @@ -301,16 +301,6 @@ arm-*-*) done fi ;; -loongarch*-*) - old_multidirs="${multidirs}" - multidirs="" - for x in ${old_multidirs}; do - case "$x" in - `${CC-gcc} --print-multi-directory`) : ;; - *) multidirs="${multidirs} ${x}" ;; - esac - done - ;; m68*-*-*) if [ x$enable_softfloat = xno ] then diff --git a/config/mt-loongarch-elf b/config/mt-loongarch-elf new file mode 100644 index 00000000000..bbf29bb578a --- /dev/null +++ b/config/mt-loongarch-elf @@ -0,0 +1 @@ +include $(srcdir)/config/mt-loongarch-mlib diff --git a/config/mt-loongarch-gnu b/config/mt-loongarch-gnu new file mode 100644 index 00000000000..dfefb44ede3 --- /dev/null +++ b/config/mt-loongarch-gnu @@ -0,0 +1,2 @@ +include $(srcdir)/config/mt-gnu +include $(srcdir)/config/mt-loongarch-mlib diff --git a/config/mt-loongarch-mlib b/config/mt-loongarch-mlib new file mode 100644 index 00000000000..4cfe568f1fc --- /dev/null +++ b/config/mt-loongarch-mlib @@ -0,0 +1 @@ +FLAGS_FOR_TARGET += -fmultiflags diff --git a/configure b/configure index 28f0913bdd4..8fc163d36bd 100755 --- a/configure +++ b/configure @@ -9683,6 +9683,12 @@ case "${target}" in spu-*-*) target_makefile_frag="config/mt-spu" ;; + loongarch*-*linux* | loongarch*-*gnu*) + target_makefile_frag="config/mt-loongarch-gnu" + ;; + loongarch*-*elf*) + target_makefile_frag="config/mt-loongarch-elf" + ;; mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*) target_makefile_frag="config/mt-sde" ;; diff --git a/configure.ac b/configure.ac index 5d25dc864c3..1d16530140a 100644 --- a/configure.ac +++ b/configure.ac @@ -2810,6 +2810,12 @@ case "${target}" in spu-*-*) target_makefile_frag="config/mt-spu" ;; + loongarch*-*linux* | loongarch*-*gnu*) + target_makefile_frag="config/mt-loongarch-gnu" + ;; + loongarch*-*elf*) + target_makefile_frag="config/mt-loongarch-elf" + ;; mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*) target_makefile_frag="config/mt-sde" ;; diff --git a/gcc/config.gcc b/gcc/config.gcc index b2fe7c7ceef..3a70e64ccd2 100644 --- a/gcc/config.gcc +++ b/gcc/config.gcc @@ -2482,7 +2482,7 @@ loongarch*-*-linux*) tm_file="elfos.h gnu-user.h linux.h linux-android.h glibc-stdint.h ${tm_file}" tm_file="${tm_file} loongarch/gnu-user.h loongarch/linux.h" extra_options="${extra_options} linux-android.opt" - tmake_file="${tmake_file} loongarch/t-linux" + tmake_file="${tmake_file} loongarch/t-multilib loongarch/t-linux" gnu_ld=yes gas=yes @@ -2494,7 +2494,7 @@ loongarch*-*-linux*) loongarch*-*-elf*) tm_file="elfos.h newlib-stdint.h ${tm_file}" tm_file="${tm_file} loongarch/elf.h loongarch/linux.h" - tmake_file="${tmake_file} loongarch/t-linux" + tmake_file="${tmake_file} loongarch/t-multilib loongarch/t-linux" gnu_ld=yes gas=yes @@ -5167,7 +5167,7 @@ case "${target}" in loongarch_multilib_list_sane=no # This one goes to TM_MULTILIB_CONFIG, for use in t-linux. - loongarch_multilib_list_make="" + loongarch_multilib_list_make="${abi_base}," # This one goes to tm_defines, for use in loongarch-driver.c. loongarch_multilib_list_c="" diff --git a/gcc/config/loongarch/loongarch-driver.h b/gcc/config/loongarch/loongarch-driver.h index b39b96dec36..d917fcabd37 100644 --- a/gcc/config/loongarch/loongarch-driver.h +++ b/gcc/config/loongarch/loongarch-driver.h @@ -23,6 +23,39 @@ along with GCC; see the file COPYING3. If not see #include "loongarch-str.h" +#ifndef SUBTARGET_CPP_SPEC +#define SUBTARGET_CPP_SPEC "" +#endif + +#ifndef SUBTARGET_CC1_SPEC +#define SUBTARGET_CC1_SPEC "" +#endif + +#ifndef SUBTARGET_ASM_SPEC +#define SUBTARGET_ASM_SPEC "" +#endif + +#define EXTRA_SPECS \ + {"early_self_spec", ""}, \ + {"subtarget_cc1_spec", SUBTARGET_CC1_SPEC}, \ + {"subtarget_cpp_spec", SUBTARGET_CPP_SPEC}, \ + {"subtarget_asm_spec", SUBTARGET_ASM_SPEC}, + + +#undef CPP_SPEC +#define CPP_SPEC \ + "%(subtarget_cpp_spec)" + +#undef CC1_SPEC +#define CC1_SPEC \ + "%{G*} %{,ada:-gnatea %{mabi=*} -gnatez} " \ + "%(subtarget_cc1_spec)" + +#undef ASM_SPEC +#define ASM_SPEC \ + "%{mabi=*} %(subtarget_asm_spec)" + + extern const char* la_driver_init (int argc, const char **argv); @@ -45,7 +78,16 @@ driver_get_normalized_m_opts (int argc, const char **argv); #define LA_SET_PARM_SPEC(NAME) \ " %{m" OPTSTR_##NAME "=*: %:set_m_parm(" OPTSTR_##NAME " %*)}" \ +/* For MLIB_SELF_SPECS. */ +#include "loongarch-multilib.h" + +#ifndef MLIB_SELF_SPECS +#define MLIB_SELF_SPECS "" +#endif + #define DRIVER_HANDLE_MACHINE_OPTIONS \ + " %(early_self_spec)", \ + MLIB_SELF_SPECS \ " %:driver_init()" \ " %{c|S|E|nostdlib: %:set_no_link()}" \ " %{nostartfiles: %{nodefaultlibs: %:set_no_link()}}" \ diff --git a/gcc/config/loongarch/loongarch.h b/gcc/config/loongarch/loongarch.h index 3fc9dc43ab1..ffb20e33bf7 100644 --- a/gcc/config/loongarch/loongarch.h +++ b/gcc/config/loongarch/loongarch.h @@ -64,56 +64,6 @@ along with GCC; see the file COPYING3. If not see #define NM_FLAGS "-Bn" #endif -/* SUBTARGET_ASM_SPEC is always passed to the assembler. It may be - overridden by subtargets. */ - -#ifndef SUBTARGET_ASM_SPEC -#define SUBTARGET_ASM_SPEC "" -#endif - -#undef ASM_SPEC -#define ASM_SPEC "%{mabi=*} %{subtarget_asm_spec}" - -/* Extra switches sometimes passed to the linker. */ - -#ifndef LINK_SPEC -#define LINK_SPEC "" -#endif /* LINK_SPEC defined */ - -/* Specs for the compiler proper. */ - -/* CC1_SPEC is the set of arguments to pass to the compiler proper. */ - -#undef CC1_SPEC -#define CC1_SPEC "%{,ada:-gnatea} %{m*} \ -%{G*} \ -%(subtarget_cc1_spec) %{,ada:-gnatez}" - -/* Preprocessor specs. */ - -/* SUBTARGET_CPP_SPEC is passed to the preprocessor. It may be - overridden by subtargets. */ -#ifndef SUBTARGET_CPP_SPEC -#define SUBTARGET_CPP_SPEC "" -#endif - -#define CPP_SPEC "%(subtarget_cpp_spec)" - -/* This macro defines names of additional specifications to put in the specs - that can be used in various specifications like CC1_SPEC. Its definition - is an initializer with a subgrouping for each command option. - - Each subgrouping contains a string constant, that defines the - specification name, and a string constant that used by the GCC driver - program. - - Do not define this macro if it does not need to do anything. */ - -#define EXTRA_SPECS \ - {"subtarget_cc1_spec", SUBTARGET_CC1_SPEC}, \ - {"subtarget_cpp_spec", SUBTARGET_CPP_SPEC}, \ - {"subtarget_asm_spec", SUBTARGET_ASM_SPEC}, - /* Registers may have a prefix which can be ignored when matching user asm and register definitions. */ #ifndef REGISTER_PREFIX diff --git a/gcc/config/loongarch/t-linux b/gcc/config/loongarch/t-linux index 9997596d722..5e849c36435 100644 --- a/gcc/config/loongarch/t-linux +++ b/gcc/config/loongarch/t-linux @@ -16,68 +16,16 @@ # along with GCC; see the file COPYING3. If not see # . -# Multilib -MULTILIB_OPTIONS = mabi=lp64d/mabi=lp64f/mabi=lp64s -MULTILIB_DIRNAMES = base/lp64d base/lp64f base/lp64s - -# The GCC driver always gets all abi-related options on the command line. -# (see loongarch-driver.c:driver_get_normalized_m_opts) -comma=, -MULTILIB_REQUIRED = $(foreach mlib,$(subst $(comma), ,$(TM_MULTILIB_CONFIG)),\ - $(firstword $(subst /, ,$(mlib)))) - -SPECS = specs.install - -# temporary self_spec when building libraries (e.g. libgcc) -gen_mlib_spec = $(if $(word 2,$1),\ - %{$(firstword $1):$(patsubst %,-%,$(wordlist 2,$(words $1),$1))}) - -# clean up the result of DRIVER_SELF_SPEC to avoid conflict -lib_build_self_spec = % $@ - -# Do some preparation before regression tests: -# remove lib-build-specs / make symlinks for the toplevel multilib variant - -LA_DEFAULT_MULTISUBDIR = $(shell $(GCC_FOR_TARGET) --print-multi-dir) -.PHONY: remove-lib-specs -check check-host check-target $(CHECK_TARGETS) $(lang_checks): remove-lib-specs -remove-lib-specs: - -mv -f specs.install specs 2>/dev/null - -mv $(LA_DEFAULT_MULTISUBDIR)/* ./ - -mkdir -p ../$(target_noncanonical)/`dirname $(LA_DEFAULT_MULTISUBDIR)` - -$(LN_S) .. ../$(target_noncanonical)/$(LA_DEFAULT_MULTISUBDIR) - -# Multiarch -ifneq ($(call if_multiarch,yes),yes) - # Define LA_DISABLE_MULTIARCH if multiarch is disabled. - tm_defines += LA_DISABLE_MULTIARCH -else - # Only define MULTIARCH_DIRNAME when multiarch is enabled, - # or it would always introduce ${target} into the search path. - MULTIARCH_DIRNAME = $(LA_MULTIARCH_TRIPLET) -endif +MULTIOSDIR_lp64d := ../lib64$(call if_multiarch,:loongarch64-linux-gnu) +MULTIOSDIR_lp64f := ../lib64/f32$(call if_multiarch,:loongarch64-linux-gnuf32) +MULTIOSDIR_lp64s := ../lib64/sf$(call if_multiarch,:loongarch64-linux-gnusf) # Don't define MULTILIB_OSDIRNAMES if multilib is disabled. ifeq ($(filter LA_DISABLE_MULTILIB,$(tm_defines)),) - MULTILIB_OSDIRNAMES = \ - mabi.lp64d=../lib64$\ - $(call if_multiarch,:loongarch64-linux-gnu) - - MULTILIB_OSDIRNAMES += \ - mabi.lp64f=../lib64/f32$\ - $(call if_multiarch,:loongarch64-linux-gnuf32) - - MULTILIB_OSDIRNAMES += \ - mabi.lp64s=../lib64/sf$\ - $(call if_multiarch,:loongarch64-linux-gnusf) + MULTILIB_OSDIRNAMES = .=$(MULTIOSDIR_$(mlib_default)) + MULTILIB_OSDIRNAMES += mabi.lp64d=$(MULTIOSDIR_lp64d) + MULTILIB_OSDIRNAMES += mabi.lp64f=$(MULTIOSDIR_lp64f) + MULTILIB_OSDIRNAMES += mabi.lp64s=$(MULTIOSDIR_lp64s) endif diff --git a/gcc/config/loongarch/t-loongarch b/gcc/config/loongarch/t-loongarch index 43088a05643..9b06fa84bcc 100644 --- a/gcc/config/loongarch/t-loongarch +++ b/gcc/config/loongarch/t-loongarch @@ -16,7 +16,7 @@ # along with GCC; see the file COPYING3. If not see # . -TM_H += $(srcdir)/config/loongarch/loongarch-driver.h +TM_H += loongarch-multilib.h $(srcdir)/config/loongarch/loongarch-driver.h OPTIONS_H_EXTRA += $(srcdir)/config/loongarch/loongarch-def.h \ $(srcdir)/config/loongarch/loongarch-tune.h diff --git a/gcc/config/loongarch/t-multilib b/gcc/config/loongarch/t-multilib new file mode 100644 index 00000000000..bf6c182987b --- /dev/null +++ b/gcc/config/loongarch/t-multilib @@ -0,0 +1,68 @@ +# Copyright (C) 2023 Free Software Foundation, Inc. +# +# This file is part of GCC. +# +# GCC is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GCC is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GCC; see the file COPYING3. If not see +# . + +# Helper definitions +comma=, +null := +space := $(null) # +exclude_1st = $(wordlist 2,$(words $1),$1) + +# Common definitions +mlib_all := lp64d lp64f lp64s +$(foreach i,$(mlib_all),$(eval MULTISUBDIR_$i := base/$i)) + +mlib_default := $(firstword $(subst $(comma), ,$(TM_MULTILIB_CONFIG))) +mlib_all := $(filter-out $(mlib_default),$(mlib_all)) + +MULTILIB_OPTIONS := $(subst $(space),/,$(foreach i,$(mlib_all),mabi=$(i))) +MULTILIB_DIRNAMES := $(foreach i,$(mlib_all),$(MULTISUBDIR_$(i))) + +# Customize builds with --with-multilib-list +MULTILIB_REQUIRED := $(foreach i,$(call exclude_1st,\ + $(subst $(comma), ,$(TM_MULTILIB_CONFIG))),\ + $(firstword $(subst /, ,$(i)))) + +## spec rules for building libraries, triggered by -fmultiflags +gen_mlib_spec = $(if $(word 2,$1),\ + %{$(firstword $1):$(patsubst %,-%,$(call exclude_1st,$1)})) + +lib_build_spec = $(foreach mlib,\ + $(call exclude_1st,$(subst $(comma), ,$(TM_MULTILIB_CONFIG))),\ + $(call gen_mlib_spec,$(subst /, ,$(mlib)))) + +default_mlib_spec := %{fmultiflags:%{!mabi=*:-mabi=$(mlib_default)}} +lib_build_spec := %{fmultiflags:$(lib_build_spec)} + +ifneq ($(TM_MULTILIB_CONFIG),) +loongarch-multilib.h: + @echo "#define MLIB_SELF_SPECS" \ + "\"$(default_mlib_spec)\"," \ + "\"$(lib_build_spec)\"," > $@ +else +loongarch-multilib.h: ; @touch $@ +endif + +# Multiarch +ifneq ($(call if_multiarch,yes),yes) + # Define LA_DISABLE_MULTIARCH if multiarch is disabled. + tm_defines += LA_DISABLE_MULTIARCH +else + # Only define MULTIARCH_DIRNAME when multiarch is enabled, + # or it would always introduce ${target} into the search path. + MULTIARCH_DIRNAME = $(LA_MULTIARCH_TRIPLET) +endif