请教gmt安装问题!

linguo

有安装过gmt的朋友吗?安装前先要装netcdf 下面是我安装的时候提示的错误,请大家帮忙看看!

[root@localhost song]# ./install_gmt GMTparams.txt
bash: ./install_gmt: 权限不够     
改成[root@localhost song]# sh install_gmt GMTparam.txt就好了,这是什么原因啊?

checking for C compiler default output file name... configure: error: C compiler cannot create executables

See `config.log' for more details.
Makefile:4: macros.make: 没有那个文件或目录
rules.make:118: warning: overriding commands for target `/'
Makefile:182: warning: ignoring old commands for target `/'
rules.make:120: warning: overriding commands for target `/'
rules.make:118: warning: ignoring old commands for target `/'
rules.make:122: warning: overriding commands for target `/'
rules.make:120: warning: ignoring old commands for target `/'
rules.make:124: warning: overriding commands for target `/'
rules.make:122: warning: ignoring old commands for target `/'
rules.make:127: warning: overriding commands for target `/'
rules.make:124: warning: ignoring old commands for target `/'
rules.make:130: warning: overriding commands for target `/'
rules.make:127: warning: ignoring old commands for target `/'
rules.make:145: warning: overriding commands for target `/man1'
rules.make:142: warning: ignoring old commands for target `/man1'
rules.make:147: warning: overriding commands for target `/man3'
rules.make:142: warning: ignoring old commands for target `/man3'
rules.make:150: warning: overriding commands for target `/man3f'
rules.make:142: warning: ignoring old commands for target `/man3f'
rules.make:154: warning: overriding commands for target `/man3f90'
rules.make:142: warning: ignoring old commands for target `/man3f90'
make: *** No rule to make target `macros.make'.  Stop.
[root@localhost song]# sh install.log 2>&1
install.log: install.log: cannot execute binary file