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| author | Karel Zak | 2013-05-21 11:32:29 +0200 |
|---|---|---|
| committer | Karel Zak | 2013-05-21 11:32:29 +0200 |
| commit | bdd384d10d4991b7a7b3ae73c8527b18311f6ec4 (patch) | |
| tree | 68f4282d1379f51c168490b6135db91069b14f99 /configure.ac | |
| parent | lscpu: add virtualization types (diff) | |
| download | kernel-qcow2-util-linux-bdd384d10d4991b7a7b3ae73c8527b18311f6ec4.tar.gz kernel-qcow2-util-linux-bdd384d10d4991b7a7b3ae73c8527b18311f6ec4.tar.xz kernel-qcow2-util-linux-bdd384d10d4991b7a7b3ae73c8527b18311f6ec4.zip | |
build-sys: always check for setns() and unshare() libs functions
$ ./configure --disable-unshare
$ make nsenter
CC sys-utils/nsenter.o
In file included from sys-utils/nsenter.c:36:0:
./include/namespace.h:31:19: error: static declaration of ‘unshare’ follows non-static declaration
In file included from /usr/include/sched.h:42:0,
from sys-utils/nsenter.c:23:
/usr/include/bits/sched.h:86:12: note: previous declaration of ‘unshare’ was here
make: *** [sys-utils/nsenter.o] Error 1
We have to always check for the libc function independently on
--disable-{unshare,nsenter} to avoid collision between local and libc
declarations.
Reported-by: "Gabor Z. Papp" <gzp@papp.hu>
Signed-off-by: Karel Zak <kzak@redhat.com>
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/configure.ac b/configure.ac index dad0439a3..9414e6ac4 100644 --- a/configure.ac +++ b/configure.ac @@ -905,9 +905,7 @@ UL_BUILD_INIT([unshare]) UL_REQUIRES_LINUX([unshare]) UL_REQUIRES_SYSCALL_CHECK([unshare], [UL_CHECK_SYSCALL([unshare])]) AM_CONDITIONAL(BUILD_UNSHARE, test "x$build_unshare" = xyes) -if test "x$build_unshare" = xyes; then - AC_CHECK_FUNCS([unshare]) -fi +AC_CHECK_FUNCS([unshare]) AC_ARG_ENABLE([nsenter], AS_HELP_STRING([--disable-nsenter], [do not build nsenter]), @@ -917,9 +915,7 @@ UL_BUILD_INIT([nsenter]) UL_REQUIRES_LINUX([nsenter]) UL_REQUIRES_SYSCALL_CHECK([nsenter], [UL_CHECK_SYSCALL([setns])], [setns]) AM_CONDITIONAL(BUILD_NSENTER, test "x$build_nsenter" = xyes) -if test "x$build_nsenter" = xyes; then - AC_CHECK_FUNCS([setns]) -fi +AC_CHECK_FUNCS([setns]) dnl setpriv depends on libcap-ng. It would be possible to build dnl a version of setpriv with limited functionality without libcap-ng, |