我正在尝试在 cygwin(在 Windows 7 中)中编译一些源代码,并在运行 make 文件时出现以下错误
g++ -DHAVE_CONFIG_H -I. -I.. -I.. -Wall -Wextra -Werror -g -O2 -MT libcommon_a Fcntl.o -MD -MP -MF .deps/libcommon_a-Fcntl.Tpo -c -o libcommon_a-Fcntl.o `test -f 'Fcntl.cpp' || echo './'`Fcntl.cpp
Fcntl.cpp: In function int setCloexec(int):
Fcntl.cpp:8: error: 'F_GETFD' was not declared in this scope
Fcntl.cpp:8: error: 'fcntl' was not declared in this scope
Fcntl.cpp:11: error: 'FD_CLOEXEC' was not declared in this scope
Fcntl.cpp:12: error: 'F_SETFD' was not declared in this scope
make[4]: *** [libcommon_a-Fcntl.o] Error 1
make[4]: Leaving directory `/abyss-1.1.2/Common'
make[3]: *** [all-recursive] Error 1
make[3]: Leaving directory `/abyss-1.1.2'
make[2]: *** [all] Error 2
make[2]: Leaving directory `/abyss-1.1.2'
make[1]: *** [.build-conf] Error 2
make[1]: Leaving directory `/cygdrive/c/Users/Martin/Documents/NetBeansProjects/abyss-1.1.2_1'
make: *** [.build-impl] Error 2
问题文件是:-
#include "Fcntl.h"
#include <fcntl.h>
/* Set the FD_CLOEXEC flag of the specified file descriptor. */
int setCloexec(int fd)
{
int flags = fcntl(fd, F_GETFD, 0);
if (flags == -1)
return -1;
flags |= FD_CLOEXEC;
return fcntl(fd, F_SETFD, flags);
}
我不明白发生了什么,文件 fcntl.h 可用,并且它所说的未在此范围内声明的变量在我自己编译文件时不会出错
任何帮助将非常感激
非常感谢