configure: error: C compiler cannot create executables编译错误的解决办法的思路分析

 

编译错误:
zyx@zyx:/opt/EmbedSky/Qte$ sudo ./arm-qtopia-2.2.0-konqueror_build
[sudo] password for zyx:
the qpe program is already !
the konqueror directory is already !
Build konqueror , please wait ...

configure: WARNING: If you wanted to set the --build type, don't use --host.
    If a cross compiler is detected then cross compile mode will be used.
checking build system type... i686-pc-linux-gnu
checking host system type... arm-unknown-linux-gnu
checking target system type... arm-unknown-linux-gnu
checking for a BSD-compatible install... /usr/bin/install -c
checking for -p flag to install... yes
checking whether build environment is sane... yes
checking for gawk... no
checking for mawk... mawk
checking whether make sets $(MAKE)... yes
checking for arm-linux-strip... arm-linux-strip
checking for style of include used by make... GNU
checking for arm-linux-gcc... arm-linux-gcc
checking for C compiler default output... configure: error: C compiler cannot create executables
See `config.log' for more details.
make: *** No targets specified and no makefile found.  Stop.
zyx@zyx:/opt/EmbedSky/Qte$

思路分析:
首先在网上查到一些解决办法:
zyx@zyx:~$ sudo apt-get install build-essential
zyx@zyx:~$ sudo apt-get install libc6-dev
但重新编译以后错误仍然存在,看来不行。
我看到了倒数第二句:"See `config.log' for more details."
使用locate命令确定config.log的位置,如下。
zyx@zyx:/$ locate config.log
/opt/EmbedSky/Qte/arm-qtopia-2.2.0/konqueror/config.log
/opt/EmbedSky/Qte/arm-qtopia-2.2.0/tslib-1.4.1/config.log
/opt/EmbedSky/Qte/arm-qtopia-2.2.0   z/konqueror/config.log
/opt/EmbedSky/Qte/arm-qtopia-2.2.0   z/tslib-1.4.1/config.log
/opt/EmbedSky/Qte/ncurses-5.6/config.log
/opt/EmbedSky/Qte/x86-qtopia-2.2.0/konqueror/config.log
/opt/EmbedSky/apps/boa-0.94.13/src/config.log
/opt/EmbedSky/apps/madplay/libid3tag-0.15.1b/config.log
/opt/EmbedSky/apps/madplay/libmad-0.15.1b/config.log
/opt/EmbedSky/apps/madplay/madplay-0.15.2b/config.log
/opt/EmbedSky/apps/sqlite-3.5.9/config.log
/opt/EmbedSky/apps/wget-1.10.2/config.log
/scim-googlepinyin/config.log
/var/log/fontconfig.log
zyx@zyx:/$

第一条便是config.log的目录。
zyx@zyx:/$ cd /opt/EmbedSky/Qte/arm-qtopia-2.2.0/konqueror/
zyx@zyx:/opt/EmbedSky/Qte/arm-qtopia-2.2.0/konqueror$ sudo gedit config.log
[sudo] password for zyx:
打开config.log后第71行~第73行:
configure:2516: checking for C compiler version
configure:2519: arm-linux-gcc --version &5
./configure: line 2520: arm-linux-gcc: command not found

可以发现,编译脚本并没有找到arm-linux-gcc的编译器,但是交叉编译器已经配置过了并已经生效,此时我想起了有时候编译器只有
在根用户下才可以被识别,所以切换到根用户下,再运行一次编译脚本就可以了。

解决办法:
zyx@zyx:/opt/EmbedSky/Qte$ su
Password:
root@zyx:/opt/EmbedSky/Qte# ./arm-qtopia-2.2.0-konqueror_build

Done!!! 一切OK!!!

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