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From 0d157b14f361f8319f4694c54c6e01ac8f59d278 Mon Sep 17 00:00:00 2001
From: YunQiang Su <yunqiang@isrc.iscas.ac.cn>
Date: Tue, 8 Oct 2024 17:56:23 +0800
Subject: [PATCH 1/2] Set fallback value for -print-multi-os-directory
Clang doesn't support -print-multi-os-directory option.
So let's set the fallback value (../lib64) if it is empty.
This is only needed for the projects built by hostcc:
gcc, libcc1, libiberty
The projects for targets only, will always built by gcc itself.
---
gcc/configure | 3 +++
libcc1/configure | 6 ++++++
libcc1/configure.ac | 3 +++
libiberty/Makefile.in | 5 ++++-
libtool.m4 | 3 +++
5 files changed, 19 insertions(+), 1 deletion(-)
diff --git a/gcc/configure b/gcc/configure
index 7e64599b0..ef0449edd 100755
--- a/gcc/configure
+++ b/gcc/configure
@@ -18598,6 +18598,9 @@ if test "$GCC" = yes; then
# and add multilib dir if necessary.
lt_tmp_lt_search_path_spec=
lt_multi_os_dir=`$CC $CPPFLAGS $CFLAGS $LDFLAGS -print-multi-os-directory 2>/dev/null`
+ if [ -z "$lt_multi_os_dir" ];then
+ lt_multi_os_dir=../lib64
+ fi
for lt_sys_path in $lt_search_path_spec; do
if test -d "$lt_sys_path/$lt_multi_os_dir"; then
lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path/$lt_multi_os_dir"
diff --git a/libcc1/configure b/libcc1/configure
index 01cfb2806..3c437d690 100755
--- a/libcc1/configure
+++ b/libcc1/configure
@@ -9701,6 +9701,9 @@ if test "$GCC" = yes; then
# and add multilib dir if necessary.
lt_tmp_lt_search_path_spec=
lt_multi_os_dir=`$CC $CPPFLAGS $CFLAGS $LDFLAGS -print-multi-os-directory 2>/dev/null`
+ if [ -z "$lt_multi_os_dir" ];then
+ lt_multi_os_dir=../lib64
+ fi
for lt_sys_path in $lt_search_path_spec; do
if test -d "$lt_sys_path/$lt_multi_os_dir"; then
lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path/$lt_multi_os_dir"
@@ -14865,6 +14868,9 @@ libsuffix=
if test "$GXX" = yes; then
libsuffix=`$CXX -print-multi-os-directory`
fi
+if [ -z "$libsuffix" ];then
+ libsuffix=../lib64
+fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for socket libraries" >&5
diff --git a/libcc1/configure.ac b/libcc1/configure.ac
index 36f5a7e09..acd7c4c04 100644
--- a/libcc1/configure.ac
+++ b/libcc1/configure.ac
@@ -72,6 +72,9 @@ libsuffix=
if test "$GXX" = yes; then
libsuffix=`$CXX -print-multi-os-directory`
fi
+if [ -z "$libsuffix" ];then
+ libsuffix=../lib64
+fi
AC_SUBST(libsuffix)
dnl Test for -lsocket and -lnsl. Copied from libgo/configure.ac.
diff --git a/libiberty/Makefile.in b/libiberty/Makefile.in
index 1b17c2e3a..2bfa00de5 100644
--- a/libiberty/Makefile.in
+++ b/libiberty/Makefile.in
@@ -385,7 +385,10 @@ install-strip: install
# multilib-specific flags, it's overridden by FLAGS_TO_PASS from the
# default multilib, so we have to take CFLAGS into account as well,
# since it will be passed the multilib flags.
-MULTIOSDIR = `$(CC) $(CFLAGS) -print-multi-os-directory`
+MULTIOSDIR = `$(CC) $(CFLAGS) -print-multi-os-directory 2>/dev/null`
+ifeq ($(MULTIOSDIR),)
+ MULTIOSDIR = ../lib64
+endif
install_to_libdir: all
if test -n "${target_header_dir}"; then \
${mkinstalldirs} $(DESTDIR)$(libdir)/$(MULTIOSDIR); \
diff --git a/libtool.m4 b/libtool.m4
index 17f8e5f30..86fc1e705 100644
--- a/libtool.m4
+++ b/libtool.m4
@@ -2059,6 +2059,9 @@ if test "$GCC" = yes; then
# and add multilib dir if necessary.
lt_tmp_lt_search_path_spec=
lt_multi_os_dir=`$CC $CPPFLAGS $CFLAGS $LDFLAGS -print-multi-os-directory 2>/dev/null`
+ if [ -z "$lt_multi_os_dir" ];then
+ lt_multi_os_dir=../lib64
+ fi
for lt_sys_path in $lt_search_path_spec; do
if test -d "$lt_sys_path/$lt_multi_os_dir"; then
lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path/$lt_multi_os_dir"
--
2.47.0
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