[Bug 7244] New: busybox 1.21.1 doesn't compile on old Linux distributions due to new PACKET_AUXDATA usage

bugzilla at busybox.net bugzilla at busybox.net
Sun Jun 29 16:19:07 UTC 2014


https://bugs.busybox.net/show_bug.cgi?id=7244

           Summary: busybox 1.21.1 doesn't compile on old Linux
                    distributions due to new PACKET_AUXDATA usage
           Product: Busybox
           Version: 1.21.x
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: blocker
          Priority: P5
         Component: Other
        AssignedTo: unassigned at busybox.net
        ReportedBy: bruno at victoria.frmug.org
                CC: busybox-cvs at busybox.net
   Estimated Hours: 0.0


When trying to compile busybox 1.21.1 on RHEL 3 or 4, or SLES 9 (as well as
some others), there are compilation errors:

[sles-9-i386] In file included from networking/udhcp/dhcpc.c:29:
[sles-9-i386] /usr/include/linux/filter.h:21: error: parse error before "__u16"
[sles-9-i386] /usr/include/linux/filter.h:23: error: parse error before "jf"
[sles-9-i386] /usr/include/linux/filter.h:24: error: parse error before "k"
[sles-9-i386] networking/udhcp/dhcpc.c: In function `udhcp_recv_raw_packet':
[sles-9-i386] networking/udhcp/dhcpc.c:839: error: invalid application of
`sizeof' to an incomplete type
[sles-9-i386] networking/udhcp/dhcpc.c:903: error: `PACKET_AUXDATA' undeclared
(first use in this function)
[sles-9-i386] networking/udhcp/dhcpc.c:903: error: (Each undeclared identifier
is reported only once
[sles-9-i386] networking/udhcp/dhcpc.c:903: error: for each function it appears
in.)
[sles-9-i386] networking/udhcp/dhcpc.c:909: error: dereferencing pointer to
incomplete type
[sles-9-i386] networking/udhcp/dhcpc.c: In function `udhcp_raw_socket':
[sles-9-i386] networking/udhcp/dhcpc.c:991: error: elements of array
`filter_instr' have incomplete type
[sles-9-i386] networking/udhcp/dhcpc.c:993: warning: excess elements in struct
initializer
[...]
[sles-9-i386] networking/udhcp/dhcpc.c:991: error: storage size of
`filter_instr' isn't known
[sles-9-i386] networking/udhcp/dhcpc.c:1014: error: initializer element is not
constant
[sles-9-i386] networking/udhcp/dhcpc.c:1014: error: (near initialization for
`filter_prog.filter')
[sles-9-i386] networking/udhcp/dhcpc.c:1035: error: `PACKET_AUXDATA' undeclared
(first use in this function)
[sles-9-i386] networking/udhcp/dhcpc.c:991: warning: unused variable
`filter_instr'
[sles-9-i386] make[1]: *** [networking/udhcp/dhcpc.o] Error 1
[sles-9-i386] make: *** [networking/udhcp] Error 2

Declaring PACKET_AUXDATA to its value isn't sufficient as some undeclared types
are also used:

[rhel-4-x86_64] In file included from networking/udhcp/dhcpc.c:29:
[rhel-4-x86_64] /usr/include/linux/filter.h:21: error: syntax error before
"__u16"
[rhel-4-x86_64] /usr/include/linux/filter.h:23: error: syntax error before "jf"
[rhel-4-x86_64] /usr/include/linux/filter.h:24: error: syntax error before "k"
[rhel-4-x86_64] networking/udhcp/dhcpc.c: In function `udhcp_recv_raw_packet':
[rhel-4-x86_64] networking/udhcp/dhcpc.c:839: error: invalid application of
`sizeof' to incomplete type `tpacket_auxdata' 
[rhel-4-x86_64] networking/udhcp/dhcpc.c:913: error: dereferencing pointer to
incomplete type
[rhel-4-x86_64] networking/udhcp/dhcpc.c: In function `udhcp_raw_socket':
[rhel-4-x86_64] networking/udhcp/dhcpc.c:995: error: elements of array
`filter_instr' have incomplete type
[rhel-4-x86_64] networking/udhcp/dhcpc.c:997: warning: excess elements in
struct initializer
[...]
[rhel-4-x86_64] networking/udhcp/dhcpc.c:995: error: storage size of
'filter_instr' isn't known
[rhel-4-x86_64] networking/udhcp/dhcpc.c:1018: error: initializer element is
not constant
[rhel-4-x86_64] networking/udhcp/dhcpc.c:1018: error: (near initialization for
`filter_prog.filter')
[rhel-4-x86_64] networking/udhcp/dhcpc.c:995: warning: unused variable
`filter_instr'
[rhel-4-x86_64] make[1]: *** [networking/udhcp/dhcpc.o] Error 1
[rhel-4-x86_64] make: *** [networking/udhcp] Error 2

Not tried yet with 1.22.1 but none of the patches available seem to address
this issue, thus this bug report.

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