compile the source code under ubuntu16.10 make error undefined type ‘struct iovec’

[jdpxiaoming]

I try to autogen.sh ->configure->make [0.9.11] then i got the error as follows.
but it is OK when i switch to 0.9.10,
I need some help, I am newer to c,c++,I can not find any struct iovec{iov_base...} define in the source

make all-recursive make[1]: Entering directory '/home/poe/develop/vnc/libvncserver-master' Making all in libvncserver make[2]: Entering directory '/home/poe/develop/vnc/libvncserver-master/libvncserver' CC libvncserver_la-main.lo CC libvncserver_la-rfbserver.lo CC libvncserver_la-rfbregion.lo CC libvncserver_la-auth.lo CC libvncserver_la-sockets.lo CC libvncserver_la-websockets.lo websockets.c: In function ‘webSocketsGenSha1Key’: websockets.c:223:5: warning: implicit declaration of function ‘digestsha1’ [-Wimplicit-function-declaration] digestsha1(iov, 2, hash); ^ websockets.c: In function ‘webSocketsGenMd5’: websockets.c:518:5: warning: implicit declaration of function ‘digestmd5’ [-Wimplicit-function-declaration] digestmd5(iov, 1, target); ^ CC libvncserver_la-rfbssl_openssl.lo CC libvncserver_la-rfbcrypto_openssl.lo rfbcrypto_openssl.c:29:29: warning: ‘struct iovec’ declared inside parameter list void digestmd5(const struct iovec *iov, int iovcnt, void *dest) ^ rfbcrypto_openssl.c:29:29: warning: its scope is only this definition or declaration, which is probably not what you want rfbcrypto_openssl.c: In function ‘digestmd5’: rfbcrypto_openssl.c:36:2: error: invalid use of undefined type ‘struct iovec’ MD5_Update(&c, iov[i].iov_base, iov[i].iov_len); ^ rfbcrypto_openssl.c:36:20: error: dereferencing pointer to incomplete type ‘const struct iovec’ MD5_Update(&c, iov[i].iov_base, iov[i].iov_len); ^ rfbcrypto_openssl.c:36:2: error: invalid use of undefined type ‘struct iovec’ MD5_Update(&c, iov[i].iov_base, iov[i].iov_len); ^ rfbcrypto_openssl.c: At top level: rfbcrypto_openssl.c:40:30: warning: ‘struct iovec’ declared inside parameter list void digestsha1(const struct iovec *iov, int iovcnt, void *dest) ^ rfbcrypto_openssl.c: In function ‘digestsha1’: rfbcrypto_openssl.c:47:2: error: invalid use of undefined type ‘struct iovec’ SHA1_Update(&c, iov[i].iov_base, iov[i].iov_len); ^ rfbcrypto_openssl.c:47:21: error: dereferencing pointer to incomplete type ‘const struct iovec’ SHA1_Update(&c, iov[i].iov_base, iov[i].iov_len); ^ rfbcrypto_openssl.c:47:2: error: invalid use of undefined type ‘struct iovec’ SHA1_Update(&c, iov[i].iov_base, iov[i].iov_len); ^ Makefile:719: recipe for target 'libvncserver_la-rfbcrypto_openssl.lo' failed make[2]: *** [libvncserver_la-rfbcrypto_openssl.lo] Error 1 make[2]: Leaving directory '/home/poe/develop/vnc/libvncserver-master/libvncserver' Makefile:548: recipe for target 'all-recursive' failed make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory '/home/poe/develop/vnc/libvncserver-master' Makefile:395: recipe for target 'all' failed make: *** [all] Error 2

[The-42]

The symptoms point to a missing <sys/uio.h> header. However, you're likely to have it since 0.9.10 seems to build and its inclusion was made conditional with release 0.9.11. The condition was needed as some systems don't have that header and a substitute is used for those cases.

Now the condition for this header is determined by the build system, which has been switched to CMake. Autotools is about to be dropped from this project (see #156), hence it is lacking the fixes CMake has had since 0.9.11, and this conditional is one of them. So either have a try at CMake or, if you really need autotools for now, include #152 in your sources.

[bk138]

@jdpxiaoming What does running 'locate uio.h' yield for you?

[bk138]

@jdpxiaoming any news on this?

[bk138]

As there was no answer in 2 weeks, I am closing this. feel free to reopen if issue persists.