Question

linux下编译tslib，configure之前都正常，但make后就出现错误啦，求解。。

终端里最后的内容如下：
In function ‘open’,
inlined from ‘main’ at ts_calibrate.c:227:
/usr/include/bits/fcntl2.h:51: error: call to ‘__open_missing_mode’ declared with attribute error: open with O_CREAT in second argument needs 3 arguments
In function ‘open’,
inlined from ‘main’ at ts_calibrate.c:229:
/usr/include/bits/fcntl2.h:51: error: call to ‘__open_missing_mode’ declared with attribute error: open with O_CREAT in second argument needs 3 arguments
make[2]: *** [ts_calibrate.o] 错误 1
make[2]:正在离开目录 `/opt/qt/tslib/tests'
make[1]: *** [all-recursive] 错误 1
make[1]:正在离开目录 `/opt/qt/tslib'
make: *** [all] 错误 2

Answer 1

gcc 新版本编译器对语法检查严格，在源文件 ./tests/ts_calibrate.c 中

// 源文件
// if ((calfile = getenv("TSLIB_CALIBFILE")) != NULL) {
// cal_fd = open (calfile, O_CREAT | O_RDWR);
// } else {
// cal_fd = open ("/etc/pointercal", O_CREAT | O_RDWR);
// }
// 需要更改成如下形式
if ((calfile = getenv("TSLIB_CALIBFILE")) != NULL) {
cal_fd = open (calfile, O_CREAT | O_RDWR, 0777);
} else {
cal_fd = open ("/etc/pointercal", O_CREAT | O_RDWR, 0777);
}保存后重新编译即可

Answer 2

用回GCC3版 4版语法检测太严格了