ffmpeg configure遇到的奇怪问题

今天在对编译ffmpeg时,首先进行./configure, 结果提示如下错误:

    xxx-linux-gcc  is unable to create an executable file.

    C compiler test failed.

 

仔细看configure文件,错误信息显示如下:

# compiler sanity check
check_exec < int main(void){ return 0; }
EOF

echo wait..(此为新增)
if test "$?" != 0; then
    echo "$cc is unable to create an executable file."
    if test -z "$cross_prefix" && ! enabled cross_compile ; then
        echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
        echo "Only do this if you know what cross compiling means."
    fi
    die "C compiler test failed."
fi

 

折腾了好一会儿也没有解决。偶然发现在脚本中增加一行echo信息: echo wait..    竟然不再提示错误信息了。

这是神马原因??????????????

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