〖Linux〗Qt5.2.0+gsoap开发Android的NDK程序遇到错误的解决
1. error: cannot convert ‘int*’ to ‘hostent**’ for argument ‘5’ to..
原因分析:
缺少的宏定义,导致使用了错误的函数原型。
被调用的函数是:
gethostbyname_r(addr,&hostent,soap->buf,SOAP_BUFLEN,&soap->errnum)
正确的调用函数应该是:
gethostbyname_r(addr,&hostent,soap->buf,SOAP_BUFLEN,&host,&soap->errnum)
解决方法:
1)修改文件stdsoap2.h,找到如下片段(大约在837行的位置)
/* Portability: define SOAP_SOCKLEN_T */ #if defined(_AIX) || defined(AIX) # if defined(_AIX43) # define SOAP_SOCKLEN_T socklen_t # else # define SOAP_SOCKLEN_T int # endif #elif defined(SOCKLEN_T) # define SOAP_SOCKLEN_T SOCKLEN_T #elif defined(__socklen_t_defined) || defined(_SOCKLEN_T) || defined(CYGWIN) || defined(FREEBSD) || defined(__FreeBSD__) || defined(OPENBSD) || defined(__QNX__) || defined(QNX) || defined(OS390) # define SOAP_SOCKLEN_T socklen_t #elif defined(IRIX) || defined(WIN32) || defined(__APPLE__) || defined(SUN_OS) || defined(OPENSERVER) || defined(TRU64) || defined(VXWORKS) || defined(HP_UX) # define SOAP_SOCKLEN_T int #else # define SOAP_SOCKLEN_T size_t #endif
修改为:
/* Portability: define SOAP_SOCKLEN_T */ #if defined(_AIX) || defined(AIX) # if defined(_AIX43) # define SOAP_SOCKLEN_T socklen_t # else # define SOAP_SOCKLEN_T int # endif #elif defined(SOCKLEN_T) # define SOAP_SOCKLEN_T SOCKLEN_T #elif defined(__socklen_t_defined) || defined(_SOCKLEN_T) || defined(CYGWIN) || defined(FREEBSD) || defined(__FreeBSD__) || defined(OPENBSD) || defined(__QNX__) || defined(QNX) || defined(OS390) || defined(__ANDROID__) # define SOAP_SOCKLEN_T socklen_t #elif defined(IRIX) || defined(WIN32) || defined(__APPLE__) || defined(SUN_OS) || defined(OPENSERVER) || defined(TRU64) || defined(VXWORKS) || defined(HP_UX) # define SOAP_SOCKLEN_T int #else # define SOAP_SOCKLEN_T size_t #endif
2)修改文件stdsoap2.cpp,找到如下片段(大约在3698行的位置)
#if defined(__GLIBC__) || (defined(HAVE_GETHOSTBYNAME_R) && (defined(FREEBSD) || defined(__FreeBSD__))) if (gethostbyname_r(addr, &hostent, soap->buf, SOAP_BUFLEN, &host, &soap->errnum) < 0) host = NULL;
修改为:
#if defined(__GLIBC__) || (defined(HAVE_GETHOSTBYNAME_R) && (defined(FREEBSD) || defined(__FreeBSD__))) || defined(__ANDROID__) if (gethostbyname_r(addr, &hostent, soap->buf, SOAP_BUFLEN, &host, &soap->errnum) < 0) host = NULL;
2. Cannot find Android tool: "/opt/android/sdk/tools/android"
原因分析:
Qt搜索了默认的Android SDK目录,即使你指定了新的路径也可能会报这个错
解决办法:
假定安装的Android SDK目录是/media/Source/android-sdk-linux,在终端输入命令
sudo mkdir -p /opt/android
sudo ln -s /media/Source/android-sdk-linux /opt/android/sdk