编译又出现问题

发布于 2018-11-20 11:19:53 浏览：3153 订阅该版

编译又出现问题:'(:
> scons
scons: Reading SConscript files ...

scons: warning: No version of Visual Studio compiler found - C/C++ compilers most likely not set correctly
File "E:\RT-Thread t-thread-master t-thread-master\bsp\qemu-vexpress-a9\SConstruct", line 23, in <module>
scons: done reading SConscript files.
scons: Building targets ...
scons: building associated VariantDir targets: build
CC build\applications\lcd_init.o
In file included from E:\RT-Thread t-thread-master t-thread-master\components<br>et\sal_socket\include\dfs_net\sys_select/sys/select.h:28:0,
                 from e:\git\env_release\env\tools\gnu_gcc\arm_gcc\mingw\arm-none-eabi\include\sys\types.h:68,
                 from e:\git\env_release\env\tools\gnu_gcc\arm_gcc\mingw\arm-none-eabi\include\sys\signal.h:12,
                 from E:\RT-Thread t-thread-master t-thread-master\include/libc/libc_signal.h:71,
                 from E:\RT-Thread t-thread-master t-thread-master\include/rtdef.h:448,
                 from E:\RT-Thread t-thread-master t-thread-master\include/rtthread.h:27,
                 from applications\lcd_init.c:1:
E:\RT-Thread t-thread-master t-thread-master\components\dfs\include/dfs_select.h:24:22: error: unknown type name 'fd_set'
int select(int nfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, struct timeval *timeout);
                      ^
E:\RT-Thread t-thread-master t-thread-master\components\dfs\include/dfs_select.h:24:39: error: unknown type name 'fd_set'
int select(int nfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, struct timeval *timeout);
                                       ^
E:\RT-Thread t-thread-master t-thread-master\components\dfs\include/dfs_select.h:24:57: error: unknown type name 'fd_set'
int select(int nfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, struct timeval *timeout);
                                                         ^
scons: *** [build\applications\lcd_init.o] Error 1
scons: building terminated because of errors.
以前编译的时候不会，突然冒出来没定义