id	summary	reporter	owner	description	type	status	priority	milestone	component	resolution	keywords	cc	branch	branch_author	launchpad_bug
5936	Building sendmsg.so on AIX requires extra define	schlenk	schlenk	"When building the 12.2.0 release with GCC on AIX, the symbols
`CMSG_SIZE` and `CMSG_LEN` come up as undefined.

{{{
 twisted/python/sendmsg.c: In function 'sendmsg_sendmsg':
 twisted/python/sendmsg.c:243: warning: implicit declaration of function 'CMSG_SPACE'
 twisted/python/sendmsg.c:306: warning: implicit declaration of function 'CMSG_LEN'
}}}

Those symbols are only defined when `_LINUX_SOURCE_COMPAT` is defined on AIX.

Adding `-D_LINUX_SOURCE_COMPAT` to `CFLAGS` or in front of the `sys/socket.h` include fixes it."	defect	new	lowest		core		aix