MbedTLS软件包编译失败 unknown type name 'DIR'

发布于 2021-02-09 12:55:04 浏览：2748 订阅该版

环境：
```
RT-Thread Studio
版本: 2.0.0
构建ID: 202012101600
OS: Windows 10, v.10.0, x86_64 / win32
Java version: 1.8.0_144
```

创建基于art_pi_factory项目，添加了MbedTLS软件包，编译的时候，提示‘DIR’类型未定义错误。
更换了MbedTLS的几个版本都是这样。
这是什么原因？
搜了一下论坛似乎没有人提到过这个问题。
log：
```
arm-none-eabi-gcc "../packages/mbedtls-latest/mbedtls/library/x509write_csr.c"
In file included from d:\rt-threadstudio\repo\extract\toolchain_support_packages\arm\gnu_tools_for_arm_embedded_processors\5.4.1\arm-none-eabi\include\dirent.h:7:0,
                 from ../packages/mbedtls-latest/mbedtls/library/x509_crt.c:74:
D:\RT-ThreadStudio\workspace\SmartWindow\rt-thread\components\libc\compilers\newlib/sys/dirent.h:53:25: error: unknown type name 'DIR'
 int            closedir(DIR *);
                         ^
D:\RT-ThreadStudio\workspace\SmartWindow\rt-thread\components\libc\compilers\newlib/sys/dirent.h:54:1: error: unknown type name 'DIR'
 DIR           *opendir(const char *);
 ^
D:\RT-ThreadStudio\workspace\SmartWindow\rt-thread\components\libc\compilers\newlib/sys/dirent.h:55:24: error: unknown type name 'DIR'
 struct dirent *readdir(DIR *);
                        ^
D:\RT-ThreadStudio\workspace\SmartWindow\rt-thread\components\libc\compilers\newlib/sys/dirent.h:56:26: error: unknown type name 'DIR'
 int            readdir_r(DIR *, struct dirent *, struct dirent **);
                          ^
D:\RT-ThreadStudio\workspace\SmartWindow\rt-thread\components\libc\compilers\newlib/sys/dirent.h:57:26: error: unknown type name 'DIR'
 void           rewinddir(DIR *);
                          ^
D:\RT-ThreadStudio\workspace\SmartWindow\rt-thread\components\libc\compilers\newlib/sys/dirent.h:58:24: error: unknown type name 'DIR'
 void           seekdir(DIR *, long int);
                        ^
D:\RT-ThreadStudio\workspace\SmartWindow\rt-thread\components\libc\compilers\newlib/sys/dirent.h:59:24: error: unknown type name 'DIR'
 long           telldir(DIR *);
                        ^
../packages/mbedtls-latest/mbedtls/library/x509_crt.c: In function 'mbedtls_x509_crt_parse_path':
../packages/mbedtls-latest/mbedtls/library/x509_crt.c:1182:5: error: unknown type name 'DIR'
     DIR *dir = opendir( path );
     ^
../packages/mbedtls-latest/mbedtls/library/x509_crt.c:1195:22: warning: implicit declaration of function 'readdir' [-Wimplicit-function-declaration]
     while( ( entry = readdir( dir ) ) != NULL )
                      ^
../packages/mbedtls-latest/mbedtls/library/x509_crt.c:1195:20: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
     while( ( entry = readdir( dir ) ) != NULL )
                    ^
../packages/mbedtls-latest/mbedtls/library/x509_crt.c:1198:57: error: dereferencing pointer to incomplete type 'struct dirent'
                                     "%s/%s", path, entry->d_name );
                                                         ^
../packages/mbedtls-latest/mbedtls/library/x509_crt.c:1224:5: warning: implicit declaration of function 'closedir' [-Wimplicit-function-declaration]
     closedir( dir );
     ^
make: *** [packages/mbedtls-latest/mbedtls/library/subdir.mk:228: packages/mbedtls-latest/mbedtls/library/x509_crt.o] Error 1
make: *** Waiting for unfinished jobs....
"make -j4 all" terminated with exit code 2. Build might be incomplete.

12:21:56 Build Failed. 11 errors, 4 warnings. (took 12m:51s.306ms)
```