【背景】
之前已经搞定此问题了：
但是，此处去：
make clean
make
结果又出错同样错误：
>>> host-libtool 2.2.10 Patching package//libtool >>> host-libtool 2.2.10 Updating config.sub and config.guess for file in config.guess config.sub; do for i in $(find /home/CLi/develop/buildroot/buildroot-2013.05/output/build/host-libtool-2.2.10 -name $file); do cp support/gnuconfig/$file $i; done; done >>> host-libtool 2.2.10 Configuring (cd /home/CLi/develop/buildroot/buildroot-2013.05/output/build/host-libtool-2.2.10/ && rm -rf config.cache; PATH="/home/CLi/develop/buildroot/buildroot-2013.05/output/host/bin:/home/CLi/develop/buildroot/buildroot-2013.05/output/host/usr/bin:/bin:/home/CLi/develop/crosstool-ng/x-tools/arm-xscale-linux-gnueabi/bin:/opt/crosstool-ng/bin:/home/CLi/develop/crosstool-ng/x-tools/armxscalecurl/bin:/usr/local/bin:/usr/bin:/cygdrive/d/tmp/dev_install_root/Python27_x64:/cygdrive/d/tmp/dev_install_root/Python27_x64/Lib/site-packages/PyQt4:/cygdrive/d/tmp/dev_install_root/Perl64/site/bin:/cygdrive/d/tmp/dev_install_root/Perl64/bin:/cygdrive/c/Program Files/Common Files/Microsoft Shared/Windows Live:/cygdrive/c/Program Files (x86)/Common Files/Microsoft Shared/Windows Live:/cygdrive/c/Windows/system32:/cygdrive/c/Windows:/cygdrive/c/Windows/System32/Wbem:/cygdrive/c/Windows/System32/WindowsPowerShell/v1.0:/cygdrive/c/Program Files (x86)/Microsoft SQL Server/100/Tools/Binn:/cygdrive/c/Program Files/Microsoft SQL Server/100/Tools/Binn:/cygdrive/c/Program Files/Microsoft SQL Server/100/DTS/Binn:/cygdrive/d/tmp/WordPress/mysql/mysql-5.5.18/MySQL/MySQL Server 5.5/bin:/cygdrive/d/tmp/WordPress/DevRoot/MySQL/MySQL Server 5.5/bin:/cygdrive/d/tmp/WordPress/DevRoot/php-5.3.6-Win32-VC9-x64:/cygdrive/d/tmp/WordPress/DevRoot/php-5.3.6-Win32-VC9-x64/ext:/cygdrive/d/tmp/WordPress/DevRoot/Python27:/cygdrive/c/Program Files (x86)/Common Files/Acronis/SnapAPI:/cygdrive/c/Program Files (x86)/Windows Live/Shared:/cygdrive/c/Program Files/Java/jdk1.7.0_11/bin:/home/CLi/develop/docbook/tools/fop/lib:/home/CLi/develop/docbook/tools/fop:/cygdrive/d/DevInstallRoot/FF/DD_IDE_1.1.2/TOK/BIN:/cygdrive/d/DevInstallRoot/FF/DD_IDE_1.2.0/TOK/BIN:/cygdrive/d/DevRoot/EmbeddedDevelop/trunk/Research/CLI/FF/FBK/develop/tools/develop-tools:/cygdrive/d/tmp/WordPress/DevRoot/Python27/Scripts:/cygdrive/d/tmp/dev_install_root/PostgreSQL/8.3/bin:/cygdrive/d/tmp/dev_install_root/ant/apache-ant-1.8.4/bin:/cygdrive/c/Program Files/nodejs:/cygdrive/c/Program Files/Microsoft/Web Platform Installer:/cygdrive/d/DevRoot/IndustrialMobileAutomation/HandheldDataSetter/ANTLR/batchFile:/cygdrive/c/Program Files (x86)/QuickTime/QTSystem:/cygdrive/d/tmp/tmp_dev_root/android/adt-bundle-windows/sdk/platform-tools:/cygdrive/d/tmp/dev_install_root/Tesseract-OCR:/cygdrive/d/tmp/dev_install_root/jython2.5.3/bin:/cygdrive/d/devinstallroot/gnuarm/bin:/cygdrive/d/tmp/dev_install_root/HTML Help Workshop:/cygdrive/c/Program Files/TortoiseSVN/bin:/cygdrive/d/tmp/dev_install_root/Go/bin:/cygdrive/d/tmp/tmp_dev_root/go/bin:/cygdrive/c/Users/CLi/AppData/Roaming/npm:/usr/lib/lapack:/opt/gcc-4.0.4-glibc-2.3.6-kernel-2.6.17/sysroot-arm-xscale-linux-gnu/usr/include:/opt/gcc-4.0.4-glibc-2.3.6-kernel-2.6.17/sysroot-arm-xscale-linux-gnu/usr/include/linux" AR="/bin/ar" AS="/bin/as" LD="/bin/ld" NM="/bin/nm" CC="/home/CLi/develop/buildroot/buildroot-2013.05/output/host/usr/bin/ccache /bin/gcc" GCC="/home/CLi/develop/buildroot/buildroot-2013.05/output/host/usr/bin/ccache /bin/gcc" CXX="/home/CLi/develop/buildroot/buildroot-2013.05/output/host/usr/bin/ccache /bin/g++" CPP="/bin/cpp" CPPFLAGS="-I/home/CLi/develop/buildroot/buildroot-2013.05/output/host/usr/include" CFLAGS="-O2 -I/home/CLi/develop/buildroot/buildroot-2013.05/output/host/usr/include" CXXFLAGS="-O2 -I/home/CLi/develop/buildroot/buildroot-2013.05/output/host/usr/include" LDFLAGS="-L/home/CLi/develop/buildroot/buildroot-2013.05/output/host/lib -L/home/CLi/develop/buildroot/buildroot-2013.05/output/host/usr/lib -Wl,-rpath,/home/CLi/develop/buildroot/buildroot-2013.05/output/host/usr/lib" PKG_CONFIG_ALLOW_SYSTEM_CFLAGS=1 PKG_CONFIG_ALLOW_SYSTEM_LIBS=1 PKG_CONFIG="/home/CLi/develop/buildroot/buildroot-2013.05/output/host/usr/bin/pkg-config" PKG_CONFIG_SYSROOT_DIR="/" PKG_CONFIG_LIBDIR="/home/CLi/develop/buildroot/buildroot-2013.05/output/host/usr/lib/pkgconfig:/home/CLi/develop/buildroot/buildroot-2013.05/output/host/usr/share/pkgconfig" PERLLIB="/home/CLi/develop/buildroot/buildroot-2013.05/output/host/usr/lib/perl" LD_LIBRARY_PATH="/home/CLi/develop/buildroot/buildroot-2013.05/output/host/usr/lib:" CFLAGS="-O2 -I/home/CLi/develop/buildroot/buildroot-2013.05/output/host/usr/include" LDFLAGS="-L/home/CLi/develop/buildroot/buildroot-2013.05/output/host/lib -L/home/CLi/develop/buildroot/buildroot-2013.05/output/host/usr/lib -Wl,-rpath,/home/CLi/develop/buildroot/buildroot-2013.05/output/host/usr/lib" ./configure --prefix="/home/CLi/develop/buildroot/buildroot-2013.05/output/host/usr" --sysconfdir="/home/CLi/develop/buildroot/buildroot-2013.05/output/host/etc" --enable-shared --disable-static --disable-gtk-doc --disable-doc --disable-docs --disable-documentation --with-xmlto=no --with-fop=no ) configure: WARNING: unrecognized options: --disable-gtk-doc, --disable-doc, --disable-docs, --disable-documentation, --with-xmlto, --with-fop ## -------------------------- ## ## Configuring libtool 2.2.10 ## ## -------------------------- ## checking for a BSD-compatible install... /bin/install -c checking whether build environment is sane... yes checking for a thread-safe mkdir -p... /bin/mkdir -p checking for gawk... gawk checking whether make sets $(MAKE)... yes checking whether subdir libobjs are useable... yes checking for gcc... /home/CLi/develop/buildroot/buildroot-2013.05/output/host/usr/bin/ccache /bin/gcc checking whether the C compiler works... no configure: error: in `/home/CLi/develop/buildroot/buildroot-2013.05/output/build/host-libtool-2.2.10': configure: error: C compiler cannot create executables See `config.log' for more details. package/pkg-generic.mk:106: recipe for target `/home/CLi/develop/buildroot/buildroot-2013.05/output/build/host-libtool-2.2.10/.stamp_configured' failed make: *** [/home/CLi/develop/buildroot/buildroot-2013.05/output/build/host-libtool-2.2.10/.stamp_configured] Error 77 CLi@PC-CLI-1 ~/develop/buildroot/buildroot-2013.05 $
如图：
即：
| configure: error: C compiler cannot create executables |
【折腾过程】
1.注意到，PATH路径值：
PATH="/home/CLi/develop/buildroot/buildroot-2013.05/......
即，不是之前设置的，最开始应该是/bin的那个路径。
而去看看，之前修改的：
D:\tmp\tmp_dev_root\cgwin\home\CLi\develop\buildroot\buildroot-2013.05\package\Makefile.in
其中的确是已经修改好了的：
# Quotes are needed for spaces et al in path components. #TARGET_PATH="$(HOST_DIR)/bin:$(HOST_DIR)/usr/bin:$(HOST_DIR)/usr/sbin/:$(PATH)" TARGET_PATH="$(PATH):$(HOST_DIR)/bin:$(HOST_DIR)/usr/bin:$(HOST_DIR)/usr/sbin/"
并且，对应的：
D:\tmp\tmp_dev_root\cgwin\home\CLi\.bashrc
最后的配置也是bin在最开始的：
PATH=/bin:$HOME/develop/crosstool-ng/x-tools/arm-xscale-linux-gnueabi/bin:/opt/crosstool-ng/bin:$HOME/develop/crosstool-ng/x-tools/armxscalecurl/bin:$PATH:/opt/gcc-4.0.4-glibc-2.3.6-kernel-2.6.17/sysroot-arm-xscale-linux-gnu/usr/include:/opt/gcc-4.0.4-glibc-2.3.6-kernel-2.6.17/sysroot-arm-xscale-linux-gnu/usr/include/linux
所以，结果还是有点奇怪的：
（TARGET_PATH中的）PATH没有变成我们所设置的，/bin在最前面。
2.注意到，此处的PATH是：
PATH="/home/CLi/develop/buildroot/buildroot-2013.05/output/host/bin:/home/CLi/develop/buildroot/buildroot-2013.05/output/host/usr/bin:...
即：
D:\tmp\tmp_dev_root\cgwin\home\CLi\develop\buildroot\buildroot-2013.05\package\Makefile.in
中的那个
$(HOST_DIR)/bin
和
$(HOST_DIR)/usr/bin
又跑到/bin之前了。
感觉像是：
在上面
TARGET_PATH="$(PATH):$(HOST_DIR)/bin:$(HOST_DIR)/usr/bin:$(HOST_DIR)/usr/sbin/"
设置之外，又是哪里，去故意把此两个路径，加到了我主动设置的PATH前面了。
3.然后注意到：
D:\tmp\tmp_dev_root\cgwin\home\CLi\develop\buildroot\buildroot-2013.05\package\Makefile.in
中是：
#HOST_PATH=$(HOST_DIR)/bin:$(HOST_DIR)/usr/bin:$(PATH) HOST_PATH="$(HOST_DIR)/bin:$(HOST_DIR)/usr/bin:$(PATH)" # hostcc version as an integer - E.G. 4.3.2 => 432 HOSTCC_VERSION:=$(shell $(HOSTCC_NOCCACHE) --version | \ sed -n 's/^.* \([0-9]*\)\.\([0-9]*\)\.\([0-9]*\)[ ]*.*$$/\1\2\3/p') ...... TARGET_MAKE_ENV=PATH=$(TARGET_PATH) \ PERLLIB="$(HOST_DIR)/usr/lib/perl" HOST_CONFIGURE_OPTS=PATH=$(HOST_PATH) \ AR="$(HOSTAR)" \ ....... HOST_MAKE_ENV=PATH=$(HOST_PATH) \ LD_LIBRARY_PATH="$(HOST_DIR)/usr/lib:$(LD_LIBRARY_PATH)" \ ......
即：
此处，虽然TARGET_MAKE_ENV等变量，是依赖于我之前已经改好了的
TARGET_PATH="$(PATH):$(HOST_DIR)/bin:$(HOST_DIR)/usr/bin:$(HOST_DIR)/usr/sbin/"
但是，另外两个：
HOST_CONFIGURE_OPTS
和
HOST_MAKE_ENV
都是依赖于：HOST_PATH
而HOST_PATH，目前设置的值，就是：
HOST_PATH="$(HOST_DIR)/bin:$(HOST_DIR)/usr/bin:$(PATH)"
4.所以，去把：
D:\tmp\tmp_dev_root\cgwin\home\CLi\develop\buildroot\buildroot-2013.05\package\Makefile.in
中的HOST_PATH改为：
#HOST_PATH=$(HOST_DIR)/bin:$(HOST_DIR)/usr/bin:$(PATH) #HOST_PATH="$(HOST_DIR)/bin:$(HOST_DIR)/usr/bin:$(PATH)" HOST_PATH="$(PATH):$(HOST_DIR)/bin:$(HOST_DIR)/usr/bin"
5.然后再去重新
make clean
再make
看看结果。
然后才终于解决此问题，终于可以正常去继续编译：
[7m>>> host-libtool 2.2.10 Extracting[27m gzip -d -c /home/CLi/develop/buildroot/buildroot-2013.05/dl/libtool-2.2.10.tar.gz | tar --strip-components=1 -C /home/CLi/develop/buildroot/buildroot-2013.05/output/build/host-libtool-2.2.10 -xf - [7m>>> host-libtool 2.2.10 Patching package//libtool[27m [7m>>> host-libtool 2.2.10 Updating config.sub and config.guess[27m for file in config.guess config.sub; do for i in $(find /home/CLi/develop/buildroot/buildroot-2013.05/output/build/host-libtool-2.2.10 -name $file); do cp support/gnuconfig/$file $i; done; done [7m>>> host-libtool 2.2.10 Configuring[27m (cd /home/CLi/develop/buildroot/buildroot-2013.05/output/build/host-libtool-2.2.10/ && rm -rf config.cache; PATH="/bin:/home/CLi/develop/crosstool-ng/x-tools/arm-xscale-linux-gnueabi/bin:/opt/crosstool-ng/bin:/home/CLi/develop/crosstool-ng/x-tools/armxscalecurl/bin:/usr/local/bin:/usr/bin:/cygdrive/d/tmp/dev_install_root/Python27_x64:/cygdrive/d/tmp/dev_install_root/Python27_x64/Lib/site-packages/PyQt4:/cygdrive/d/tmp/dev_install_root/Perl64/site/bin:/cygdrive/d/tmp/dev_install_root/Perl64/bin:/cygdrive/c/Program Files/Common Files/Microsoft Shared/Windows Live:/cygdrive/c/Program Files (x86)/Common Files/Microsoft Shared/Windows Live:/cygdrive/c/Windows/system32:/cygdrive/c/Windows:/cygdrive/c/Windows/System32/Wbem:/cygdrive/c/Windows/System32/WindowsPowerShell/v1.0:/cygdrive/c/Program Files (x86)/Microsoft SQL Server/100/Tools/Binn:/cygdrive/c/Program Files/Microsoft SQL Server/100/Tools/Binn:/cygdrive/c/Program Files/Microsoft SQL Server/100/DTS/Binn:/cygdrive/d/tmp/WordPress/mysql/mysql-5.5.18/MySQL/MySQL Server 5.5/bin:/cygdrive/d/tmp/WordPress/DevRoot/MySQL/MySQL Server 5.5/bin:/cygdrive/d/tmp/WordPress/DevRoot/php-5.3.6-Win32-VC9-x64:/cygdrive/d/tmp/WordPress/DevRoot/php-5.3.6-Win32-VC9-x64/ext:/cygdrive/d/tmp/WordPress/DevRoot/Python27:/cygdrive/c/Program Files (x86)/Common Files/Acronis/SnapAPI:/cygdrive/c/Program Files (x86)/Windows Live/Shared:/cygdrive/c/Program Files/Java/jdk1.7.0_11/bin:/home/CLi/develop/docbook/tools/fop/lib:/home/CLi/develop/docbook/tools/fop:/cygdrive/d/DevInstallRoot/FF/DD_IDE_1.1.2/TOK/BIN:/cygdrive/d/DevInstallRoot/FF/DD_IDE_1.2.0/TOK/BIN:/cygdrive/d/DevRoot/EmbeddedDevelop/trunk/Research/CLI/FF/FBK/develop/tools/develop-tools:/cygdrive/d/tmp/WordPress/DevRoot/Python27/Scripts:/cygdrive/d/tmp/dev_install_root/PostgreSQL/8.3/bin:/cygdrive/d/tmp/dev_install_root/ant/apache-ant-1.8.4/bin:/cygdrive/c/Program Files/nodejs:/cygdrive/c/Program Files/Microsoft/Web Platform Installer:/cygdrive/d/DevRoot/IndustrialMobileAutomation/HandheldDataSetter/ANTLR/batchFile:/cygdrive/c/Program Files (x86)/QuickTime/QTSystem:/cygdrive/d/tmp/tmp_dev_root/android/adt-bundle-windows/sdk/platform-tools:/cygdrive/d/tmp/dev_install_root/Tesseract-OCR:/cygdrive/d/tmp/dev_install_root/jython2.5.3/bin:/cygdrive/d/devinstallroot/gnuarm/bin:/cygdrive/d/tmp/dev_install_root/HTML Help Workshop:/cygdrive/c/Program Files/TortoiseSVN/bin:/cygdrive/d/tmp/dev_install_root/Go/bin:/cygdrive/d/tmp/tmp_dev_root/go/bin:/cygdrive/c/Users/CLi/AppData/Roaming/npm:/usr/lib/lapack:/opt/gcc-4.0.4-glibc-2.3.6-kernel-2.6.17/sysroot-arm-xscale-linux-gnu/usr/include:/opt/gcc-4.0.4-glibc-2.3.6-kernel-2.6.17/sysroot-arm-xscale-linux-gnu/usr/include/linux:/home/CLi/develop/buildroot/buildroot-2013.05/output/host/bin:/home/CLi/develop/buildroot/buildroot-2013.05/output/host/usr/bin" AR="/bin/ar" AS="/bin/as" LD="/bin/ld" NM="/bin/nm" CC="/home/CLi/develop/buildroot/buildroot-2013.05/output/host/usr/bin/ccache /bin/gcc" GCC="/home/CLi/develop/buildroot/buildroot-2013.05/output/host/usr/bin/ccache /bin/gcc" CXX="/home/CLi/develop/buildroot/buildroot-2013.05/output/host/usr/bin/ccache /bin/g++" CPP="/bin/cpp" CPPFLAGS="-I/home/CLi/develop/buildroot/buildroot-2013.05/output/host/usr/include" CFLAGS="-O2 -I/home/CLi/develop/buildroot/buildroot-2013.05/output/host/usr/include" CXXFLAGS="-O2 -I/home/CLi/develop/buildroot/buildroot-2013.05/output/host/usr/include" LDFLAGS="-L/home/CLi/develop/buildroot/buildroot-2013.05/output/host/lib -L/home/CLi/develop/buildroot/buildroot-2013.05/output/host/usr/lib -Wl,-rpath,/home/CLi/develop/buildroot/buildroot-2013.05/output/host/usr/lib" PKG_CONFIG_ALLOW_SYSTEM_CFLAGS=1 PKG_CONFIG_ALLOW_SYSTEM_LIBS=1 PKG_CONFIG="/home/CLi/develop/buildroot/buildroot-2013.05/output/host/usr/bin/pkg-config" PKG_CONFIG_SYSROOT_DIR="/" PKG_CONFIG_LIBDIR="/home/CLi/develop/buildroot/buildroot-2013.05/output/host/usr/lib/pkgconfig:/home/CLi/develop/buildroot/buildroot-2013.05/output/host/usr/share/pkgconfig" PERLLIB="/home/CLi/develop/buildroot/buildroot-2013.05/output/host/usr/lib/perl" LD_LIBRARY_PATH="/home/CLi/develop/buildroot/buildroot-2013.05/output/host/usr/lib:" CFLAGS="-O2 -I/home/CLi/develop/buildroot/buildroot-2013.05/output/host/usr/include" LDFLAGS="-L/home/CLi/develop/buildroot/buildroot-2013.05/output/host/lib -L/home/CLi/develop/buildroot/buildroot-2013.05/output/host/usr/lib -Wl,-rpath,/home/CLi/develop/buildroot/buildroot-2013.05/output/host/usr/lib" ./configure --prefix="/home/CLi/develop/buildroot/buildroot-2013.05/output/host/usr" --sysconfdir="/home/CLi/develop/buildroot/buildroot-2013.05/output/host/etc" --enable-shared --disable-static --disable-gtk-doc --disable-doc --disable-docs --disable-documentation --with-xmlto=no --with-fop=no ) configure: WARNING: unrecognized options: --disable-gtk-doc, --disable-doc, --disable-docs, --disable-documentation, --with-xmlto, --with-fop ## -------------------------- ## ## Configuring libtool 2.2.10 ## ## -------------------------- ## checking for a BSD-compatible install... /bin/install -c checking whether build environment is sane... yes checking for a thread-safe mkdir -p... /bin/mkdir -p checking for gawk... gawk checking whether make sets $(MAKE)... yes checking whether subdir libobjs are useable... yes checking for gcc... /home/CLi/develop/buildroot/buildroot-2013.05/output/host/usr/bin/ccache /bin/gcc checking whether the C compiler works... yes checking for C compiler default output file name... a.exe checking for suffix of executables... .exe checking whether we are cross compiling... no
如图：
其中，可见对应的PATH是需要需要的/bin在最开始的了：
PATH="/bin:......
【总结】
buildroot中的makefile，由于官网没支持cygwin
所以对于cygwin中的很多，和路径有关的支持，并不完善。
所以才导致，之前遇到：
【已解决】Cygwin下为xscale编译Buildroot时make出错：/bin/sh: -c: line 0: syntax error near unexpected token `(‘
所以才对于：
D:\tmp\tmp_dev_root\cgwin\home\CLi\develop\buildroot\buildroot-2013.05\package\Makefile.in
中的：
HOST_PATH=$(HOST_DIR)/bin:$(HOST_DIR)/usr/bin:$(PATH)
改为：
HOST_PATH="$(HOST_DIR)/bin:$(HOST_DIR)/usr/bin:$(PATH)"
的。
而此处，又是由于：
configure: error: C compiler cannot create executables
而去再把：
HOST_PATH="$(HOST_DIR)/bin:$(HOST_DIR)/usr/bin:$(PATH)"
改为：
HOST_PATH="$(PATH):$(HOST_DIR)/bin:$(HOST_DIR)/usr/bin"
才解决问题的。
转载请注明：在路上 » 【记录】第四次去研究：cygwin下编译buildroot在编译libtool时出错：configure: error: C compiler cannot create executables