[Openswan Users] Error compiling OpenSwan 1.0.8 klips/utils (incomplete net/if.h)

[Stephen Jones]

Hello!

I searched the list archives for the past 2 months (to cover the time 
since the release of 1.0.8 and 2.4.28) to see if anyone else has 
encountered this issue before, but did not find any hits.

I am attempting to update my kernel to 2.4.28 and OpenSwan to 1.0.8, but 
when compiling the OpenSwan programs, the compiler complains with these 
messages:

make[2]: Entering directory 
`/usr/src/linux-2.4.28/openswan-1.0.8/klips/utils'
gcc -g -O3 -I../net/ipsec -I../../lib -g -O3 -Wall -Wpointer-arith 
-Wcast-qual -Wstrict-prototypes
-Wbad-function-cast  -DNAT_TRAVERSAL   -c -o spi.o spi.c
In file included from spi.c:23:
/usr/include/net/if.h:138: error: field `ifru_addr' has incomplete type
/usr/include/net/if.h:139: error: field `ifru_dstaddr' has incomplete type
/usr/include/net/if.h:140: error: field `ifru_broadaddr' has incomplete type
/usr/include/net/if.h:141: error: field `ifru_netmask' has incomplete type
/usr/include/net/if.h:142: error: field `ifru_hwaddr' has incomplete type
make[2]: *** [spi.o] Error 1
make[2]: Leaving directory 
`/usr/src/linux-2.4.28/openswan-1.0.8/klips/utils'
make[1]: *** [programs] Error 1
make[1]: Leaving directory `/usr/src/linux-2.4.28/openswan-1.0.8/klips'
make: *** [programs] Error 1

The version of if.h is 1.0.2 from 04/18/93, is there another, or a new 
version of this header out there that OpenSwan 1.0.8 requires?

Thanks in advance for any info or nudges in the right direction to get 
this resolved!

SJ