编译busybox的时候出现error: field 'in' has incomplete type

编译错误1：

applets/applets.c:15:2: warning: #warning Static linking against glibc

produces buggy executables

applets/applets.c:16:2: warning: #warning (glibc

does not cope well with ld –gc-sections).

applets/applets.c:17:2: warning:

#warning See sources.redhat.com/bugzilla/show_bug.cgi?id=3400

applets/applets.c:18:2: warning: #warning Note that glibc is unsuitable for

static linking anyway.

applets/applets.c:19:2: warning: #warning If you

still want to do it, remove -Wl,–gc-sections

applets/applets.c:20:2:

warning: #warning from scripts/trylink and remove this warning.

applets/applets.c:21:2: error: #error Aborting compilation.

make[1]: ***

[applets/applets.o] Error 1

解决办法：

修改文件 applets/applets.c 第 21 行, 将

#error Aborting compilation.

注释掉:

/*#error Aborting compilation.*/

编译错误2:

warn_unused_result

CC      init/mesg.o

AR      init/lib.a

LD

ipsvd/built-in.o

CC      ipsvd/ipsvd_perhost.o

CC

ipsvd/tcpudp.o

In file included from

/opt/arm-linux/bin/../arm-none-linux-gnueabi/libc/usr/include/linux/netfilter_ipv4.h:8,

from

ipsvd/tcpudp.c:33:

/opt/arm-linux/bin/../arm-none-linux-gnueabi/libc/usr/include/linux/netfilter.h:55:

error: field ‘in’ has incomplete

type

/opt/arm-linux/bin/../arm-none-linux-gnueabi/libc/usr/include/linux/netfilter.h:56:

error: field ‘in6′ has incomplete type

ipsvd/tcpudp.c: In function

‘tcpudpsvd_main’:

ipsvd/tcpudp.c:314: warning: ignoring return value of

‘write’, declared with attribute warn_unused_result

make[1]: ***

[ipsvd/tcpudp.o] 错误 1

make: *** [ipsvd] 错误 2

解决办法：

arm-linux 交叉编译工具链

在 usr/local/arm/4.3.2/arm-none-linux-gnueabi/libc/usr/include/linux/netfilter.h 头文件的开头

添加缺少的头文件：

#include <netinet/in.h>