【背景】
折腾：
【记录】Cygwin下用crosstool-ng为arm制作交叉编译器
期间，需要把crosstool-ng，配置编译和安装到当前的Cygwin中。
【折腾过程】
1.先去配置，此处，配置很顺利，没出错，就配置好了：
Administrator@PC-20130611GART /home/develop/crosstool-ng/crosstool-ng-1.18.0 $ ls COPYING Makefile.in TODO config configure.ac ct-ng.comp docs licenses.d samples steps.mk LICENSES README bootstrap configure contrib ct-ng.in kconfig patches scripts Administrator@PC-20130611GART /home/develop/crosstool-ng/crosstool-ng-1.18.0 $ ./configure --prefix=/opt/crosstool-ng checking build system type... i686-pc-cygwin checking host system type... i686-pc-cygwin checking for a BSD-compatible install... /usr/bin/install -c checking for grep that handles long lines and -e... /usr/bin/grep checking for egrep... /usr/bin/grep -E checking for a sed that does not truncate output... /usr/bin/sed checking whether sed understands -r -i -e... yes checking whether ln -s works... yes checking for gcc... gcc checking whether the C compiler works... yes checking for C compiler default output file name... a.exe checking for suffix of executables... .exe checking whether we are cross compiling... no checking for suffix of object files... o checking whether we are using the GNU C compiler... yes checking whether gcc accepts -g... yes checking for gcc option to accept ISO C89... none needed checking how to run the C preprocessor... gcc -E checking for ranlib... ranlib checking for objcopy... objcopy checking for absolute path to objcopy... /usr/bin/objcopy checking for objdump... objdump checking for absolute path to objdump... /usr/bin/objdump checking for readelf... readelf checking for absolute path to readelf... /usr/bin/readelf checking for bison... bison checking for flex... flex checking for gperf... gperf checking for makeinfo... makeinfo checking for cut... cut checking for stat... stat checking for readlink... readlink checking for wget... wget checking for tar... tar checking for gzip... gzip checking for bzip2... bzip2 checking for patch... /usr/bin/patch checking for bash >= 3.1... /usr/bin/bash checking for GNU awk... /usr/bin/awk checking for GNU make >= 3.80... /usr/bin/make checking whether /usr/bin/make sets $(MAKE)... yes checking for GNU libtool >= 1.5.26... /usr/bin/libtool checking for GNU libtoolize >= 1.5.26... /usr/bin/libtoolize checking for GNU automake >= 1.10... /usr/bin/automake checking for xz... xz checking for cvs... cvs checking for svn... svn checking for inline... inline checking for ANSI C header files... yes checking for sys/types.h... yes checking for sys/stat.h... yes checking for stdlib.h... yes checking for string.h... yes checking for memory.h... yes checking for strings.h... yes checking for inttypes.h... yes checking for stdint.h... yes checking for unistd.h... yes checking for stdlib.h... (cached) yes checking for GNU libc compatible malloc... yes checking for stdlib.h... (cached) yes checking for GNU libc compatible realloc... yes checking for working alloca.h... yes checking for alloca... yes checking libintl.h usability... yes checking libintl.h presence... yes checking for libintl.h... yes checking whether gettext is declared... yes checking ncurses/ncurses.h usability... yes checking ncurses/ncurses.h presence... yes checking for ncurses/ncurses.h... yes checking for library containing initscr... -lncursesw configure: creating ./config.status config.status: creating Makefile Administrator@PC-20130611GART /home/develop/crosstool-ng/crosstool-ng-1.18.0 $
2.再去make编译crosstool-ng，然后出现和之前：
一样的错误“zconf.tab.o:zconf.tab.c:(.text+0x162a): undefined reference to `_libintl_gettext’ ”：
3.然后对于mconf又出现”lxdialog/menubox.o:menubox.c:(.text+0x7d): undefined reference to `_wattrset’“的错误了：
4.然后，又出现“nconf.c:1521:2: error: lvalue required as left operand of assignment”的错误：
5.然后接着又出现“nconf.o:nconf.c:(.text+0x373): undefined reference to `_free_item’”的错误：
【已解决】Cygwin下make编译crosstool-ng出错：nconf.o:nconf.c:(.text+0×373): undefined reference to `_free_item’
最后就make编译完成了：
6.然后就是去用make install安装：
Administrator@PC-20130611GART /home/develop/crosstool-ng/crosstool-ng-1.18.0 $ make install GEN 'config/configure.in' GEN 'paths.mk' GEN 'paths.sh' MKDIR '/opt/crosstool-ng/bin/' INST 'ct-ng' RMDIR '/opt/crosstool-ng/lib/ct-ng.1.18.0/' MKDIR '/opt/crosstool-ng/lib/ct-ng.1.18.0/' INSTDIR 'config/' INSTDIR 'contrib/' INSTDIR 'patches/' INSTDIR 'scripts/' INST 'steps.mk' INST 'paths' INSTDIR 'samples/' INST 'kconfig/' MKDIR '/opt/crosstool-ng/share/doc/crosstool-ng/ct-ng.1.18.0/' INST 'docs/*.txt' MKDIR '/opt/crosstool-ng/share/man/man1/' INST 'ct-ng.1.gz' For auto-completion, do not forget to install 'ct-ng.comp' into your bash completion directory (usually /etc/bash_completion.d)
7.然后去确认一下：
Administrator@PC-20130611GART /home/develop/crosstool-ng/crosstool-ng-1.18.0 $ ls /opt/crosstool-ng/ -lha total 0 drwxr-xr-x+ 1 Administrator None 0 Aug 24 22:43 . drwxr-xr-x+ 1 Administrator None 0 Aug 24 22:43 .. drwxr-xr-x+ 1 Administrator None 0 Aug 24 22:43 bin drwxr-xr-x+ 1 Administrator None 0 Aug 24 22:43 lib drwxr-xr-x+ 1 Administrator None 0 Aug 24 22:43 share Administrator@PC-20130611GART /home/develop/crosstool-ng/crosstool-ng-1.18.0 $ ls /opt/crosstool-ng/bin/ -lha total 8.0K drwxr-xr-x+ 1 Administrator None 0 Aug 24 22:43 . drwxr-xr-x+ 1 Administrator None 0 Aug 24 22:43 .. -rwxr-xr-x 1 Administrator None 4.9K Aug 24 22:43 ct-ng Administrator@PC-20130611GART /home/develop/crosstool-ng/crosstool-ng-1.18.0 $ ls /opt/crosstool-ng/bin/lib -lha ls: cannot access /opt/crosstool-ng/bin/lib: No such file or directory Administrator@PC-20130611GART /home/develop/crosstool-ng/crosstool-ng-1.18.0 $ ls /opt/crosstool-ng/lib -lha total 4.0K drwxr-xr-x+ 1 Administrator None 0 Aug 24 22:43 . drwxr-xr-x+ 1 Administrator None 0 Aug 24 22:43 .. drwxr-xr-x+ 1 Administrator None 0 Aug 24 22:43 ct-ng.1.18.0 Administrator@PC-20130611GART /home/develop/crosstool-ng/crosstool-ng-1.18.0 $ ls /opt/crosstool-ng/lib/ct-ng.1.18.0/ -lha total 42K drwxr-xr-x+ 1 Administrator None 0 Aug 24 22:43 . drwxr-xr-x+ 1 Administrator None 0 Aug 24 22:43 .. drwxr-xr-x+ 1 Administrator None 0 Aug 24 22:18 config drwxr-xr-x+ 1 Administrator None 0 Feb 1 2013 contrib drwxr-xr-x+ 1 Administrator None 0 Aug 24 22:43 kconfig drwxr-xr-x+ 1 Administrator None 0 Feb 1 2013 patches -rw-r--r-- 1 Administrator None 355 Aug 24 22:43 paths.mk -rw-r--r-- 1 Administrator None 379 Aug 24 22:43 paths.sh drwxr-xr-x+ 1 Administrator None 0 Aug 24 22:43 samples drwxr-xr-x+ 1 Administrator None 0 Aug 24 22:43 scripts -rw-r--r-- 1 Administrator None 2.3K Aug 24 22:43 steps.mk
如图：
【总结】
此处，cygwin 1.7.17下，配置，编译，安装，crosstool-ng到cygwin下，相对来说，也不难。
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