Bug 430484 – sys-apps/systemd-187 fails to generate a correct set of syscalls - In file included from src/core/syscall-list.c:31:0: src/core/syscall-to-name.h:6:2: error: ‘__NR_connect’ undeclared here (not in a function)

• Status: RESOLVED FIXED
• Product: Gentoo Linux

[Description crabbed halo ablution 2012-08-08 18:29:58 UTC]

systemd-187 does some smartypants m4-hackery to extract the valid syscalls from syscall.h. Since this file is arch-specific and since the output from gcc -E (CPP) is dependent on the CFLAGS, it should use standard autotools behavior to generate its extract. Unfortunately, it does no such thing and just calls cpp, which works untill you have to crosscompile or compile for a sub-arch such as x86 on amd64 (multilib-portage). In that case, it just blows up in your face because different syscalls are available for the two architectures:
[...]
  GEN    src/core/load-fragment-gperf.c
  GEN    src/core/load-fragment-gperf-nulstr.c
  CC     src/udev/libudev_core_la-udev-event.lo
  CC     src/udev/libudev_core_la-udev-watch.lo
  CC     src/udev/libudev_core_la-udev-node.lo
  CC     src/udev/libudev_core_la-udev-rules.lo
In file included from src/core/syscall-list.c:31:0:
src/core/syscall-to-name.h:6:2: error: ‘__NR_connect’ undeclared here (not in a function)
src/core/syscall-to-name.h:6:1: error: array index in initializer not of integer type
src/core/syscall-to-name.h:6:1: error: (near initialization for ‘syscall_names’)
src/core/syscall-to-name.h:21:2: error: ‘__NR_semop’ undeclared here (not in a function)
src/core/syscall-to-name.h:21:1: error: array index in initializer not of integer type
src/core/syscall-to-name.h:21:1: error: (near initialization for ‘syscall_names’)
src/core/syscall-to-name.h:23:2: error: ‘__NR_epoll_ctl_old’ undeclared here (not in a function)
src/core/syscall-to-name.h:23:1: error: array index in initializer not of integer type
src/core/syscall-to-name.h:23:1: error: (near initialization for ‘syscall_names’)
src/core/syscall-to-name.h:25:2: error: ‘__NR_shmat’ undeclared here (not in a function)
src/core/syscall-to-name.h:25:1: error: array index in initializer not of integer type
src/core/syscall-to-name.h:25:1: error: (near initialization for ‘syscall_names’)
src/core/syscall-to-name.h:30:2: error: ‘__NR_shmdt’ undeclared here (not in a function)
src/core/syscall-to-name.h:30:1: error: array index in initializer not of integer type
src/core/syscall-to-name.h:30:1: error: (near initialization for ‘syscall_names’)
src/core/syscall-to-name.h:52:2: error: ‘__NR_semctl’ undeclared here (not in a function)
src/core/syscall-to-name.h:52:1: error: array index in initializer not of integer type
src/core/syscall-to-name.h:52:1: error: (near initialization for ‘syscall_names’)
[...]

[Comment 1 crabbed halo ablution 2012-08-08 18:31:57 UTC]

Created attachment 320738 [details, diff]
fix abusive autotools behaviour

eautoreconf needed after applying this patch

[Comment 2 crabbed halo ablution 2012-08-08 18:53:28 UTC]

Filed upstream bug. See URL

[Comment 3 crabbed halo ablution 2012-08-09 18:54:57 UTC]

This should be fixed with systemd-188 which was released 18 hours ago. Close this bug when you've bumped.

[Comment 4 Michał Górny 2012-08-11 00:19:00 UTC]

(In reply to comment #3)
> This should be fixed with systemd-188 which was released 18 hours ago. Close
> this bug when you've bumped.

-188 in the tree. Feel free to give it a try but it may be scary.