我正在尝试从Windows PC（cygwin）交叉编译用于Linux的gcc-i686-elf平台。按照工具链步骤，我已经成功编译：
binutils使用
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使用
的基本gcc第一步 /binutils-x.y.z/configure --target=$TARGET --prefix="$PREFIX" --with-sysroot --disable-nls --disable-werror
使用
的Linux标头 gcc-x.y.z/configure --target=$TARGET --prefix="$PREFIX" --disable-nls --enable-languages=c,c++ --without-headers
glibc使用
make headers_install ARCH=i386 CROSS_COMPILE=i386-linux- INDTALL_HDR_PATH=my/path/
然后CC=${TARGET}-gcc ../glibc-2.29/configure --target=$TARGET --host=i686-pc-linux-gnu --prefix=$PREFIX --with-headers=my/path/
现在，使用make install-headers
我收到以下错误：
../gcc-7.4.0/configure --target=$TARGET --prefix=$PREFIX --with-sysroot=$HOME/opt/cross --disable-libssp --disable-libgomp --disable-libmudflap --enable-languages=c,c++ --disable-multilib我曾尝试make[2]: Entering directory '/home/MyPcUserName/src/build-gcc/i686-elf/libgcc
- If this is the top-level multilib, build all the other multilibs.
ln -s ../../../gcc-7.4.0/libgcc/enable-execute-stack-empty.c enable-execute-stack.c
ln -s ../../../gcc-7.4.0/libgcc/unwind-generic.h unwind.h
ln -s ../../../gcc-7.4.0/libgcc/config/no-unwind.h md-unwind-support.h
ln -s ../../../gcc-7.4.0/libgcc/config/i386/sfp-machine.h sfp-machine.h
ln -s ../../../gcc-7.4.0/libgcc/gthr-single.h gthr-default.h
DEFINES='' HEADERS='' \
../../../gcc-7.4.0/libgcc/mkheader.sh > tmp-libgcc_tm.h
/bin/sh ../../../gcc-7.4.0/libgcc/../move-if-change tmp-libgcc_tm.h libgcc_tm.h
echo timestamp > libgcc_tm.stamp
/home/MyPcUserName/src/build-gcc/./gcc/xgcc -B/home/MyPcUserName/src/build-gcc/./gcc/ -B/home/MyPcUserName/opt/cross/i686-elf/bin/ -B/home/MyPcUserName/opt/cross/i686-elf/lib/ -isystem /home/MyPcUserName/opt/cross/i686-elf/include -isystem /home/MyPcUserName/opt/cross/i686-elf/sys-include -g -O2 -O2 -g -O2 -DIN_GCC -DCROSS_DIRECTORY_STRUCTURE -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -isystem ./include -fpic -g -DIN_LIBGCC2 -fbuilding-libgcc -fno-stack-protector -fpic -I. -I. -I../.././gcc -I../../../gcc-7.4.0/libgcc -I../../../gcc-7.4.0/libgcc/. -I../../../gcc-7.4.0/libgcc/../gcc -I../../../gcc-7.4.0/libgcc/../include -DHAVE_CC_TLS -o _muldi3.o -MT _muldi3.o -MD -MP -MF _muldi3.dep -DL_muldi3 -c ../../../gcc-7.4.0/libgcc/libgcc2.c -fvisibility=hidden -DHIDE_EXPORTS
In file included from /home/MyPcUserName/opt/cross/usr/include/bits/libc-header-start.h:33:0,
from /home/MyPcUserName/opt/cross/usr/include/stdio.h:27,
from ../../../gcc-7.4.0/libgcc/../gcc/tsystem.h:87,
from ../../../gcc-7.4.0/libgcc/libgcc2.c:27:
/home/MyPcUserName/opt/cross/usr/include/features.h:474:10: fatal error: gnu/stubs.h: No such file or directory
#include <gnu/stubs.h>
^~~~~~~~~~~~~
compilation terminated.
make[2]: *** [Makefile:491: _muldi3.o] Error 1
make[2]: Leaving directory '/home/MyPcUserName/src/build-gcc/i686-elf/libgcc'
make[1]: *** [Makefile:11875: all-target-libgcc] Error 2
make[1]: Leaving directory '/home/MyPcUserName/src/build-gcc'
make: *** [Makefile:893: all] Error 2
禁用多路复用，以便在64位PC上忽略此gnu问题。
我试图再次重建所有这些，但仍然面临着这个问题。
请让我知道是否有人可以提供帮助。非常感谢您的宝贵时间
答案 0 :(得分：0)
构建glibc之后，我们不应该直接开始构建GCC的第二部分。相反，glibc应当采取的其他步骤如下：
$ CC=${TARGET}-gcc ../glibc-2.29/configure --target=$TARGET --host=i686-pc-linux-gnu --prefix=$PREFIX --with-headers=my/path/
$ make install-bootstrap-headers=yes install-headers
$ make -j4 csu/subdir_lib
$ install csu/crt1.o csu/crti.o csu/crtn.o /opt/cross/$TARGET/lib
$ $TARGET-gcc -nostdlib -nostartfiles -shared -x c /dev/null -o /opt/cross/$TARGET/lib/libc.so
$ touch /opt/cross/$TARGET/include/gnu/stubs.h
然后，我们可以开始构建GCC的第二部分。