__NR_setns is defined in the Linux kernel headers in linux/unistd.h.
The full Linux kernel sources are not necessary for compilation.
Signed-off-by: David Ward <david.w...@ll.mit.edu>
---
config/linux.m4 | 76 ---------------------------------------------------
configure.ac | 8 ++---
src/lxc/Makefile.am | 11 -------
src/lxc/attach.c | 3 +-
4 files changed, 4 insertions(+), 94 deletions(-)
delete mode 100644 config/linux.m4
diff --git a/config/linux.m4 b/config/linux.m4
deleted file mode 100644
index a4e9fa8..0000000
--- a/config/linux.m4
+++ /dev/null
@@ -1,76 +0,0 @@
-AC_DEFUN([AC_LINUX],
-[
- AC_LINUX_DIR()
- AC_LINUX_SRCARCH()
-])
-
-AC_DEFUN([AS_TRY_LINUX_DIR],
- [AC_MSG_CHECKING(for Linux in $1)
-
- if test -f "$1/Makefile" ; then
- result=yes
- $2
- else
- result="not found"
- $3
- fi
-
- AC_MSG_RESULT($result)
-])
-
-AC_DEFUN([AC_LINUX_DIR],
-[
- AC_ARG_WITH([linuxdir],
- [AC_HELP_STRING([--with-linuxdir=DIR],
- [specify path to Linux source directory])],
- [LINUX_DIR="${withval}"],
- [LINUX_DIR=default])
-
- dnl if specified, use the specified one
- if test "${LINUX_DIR}" != "default" ; then
- AS_TRY_LINUX_DIR([${LINUX_DIR}], , AC_MSG_ERROR([Linux dir not
found]) )
- fi
-
- dnl if not specified, first try with previously set LINUX_KERNEL_RELEASE
- if test "${LINUX_DIR}" = "default" ; then
- dir="/lib/modules/$LINUX_KERNEL_RELEASE/build";
- AS_TRY_LINUX_DIR([${dir}], [LINUX_DIR=${dir}], )
- fi
-
- dnl next try using the kernel source dir
- if test "${LINUX_DIR}" = "default" ; then
- dir="/usr/src/linux-$LINUX_KERNEL_RELEASE";
- AS_TRY_LINUX_DIR([${dir}], [LINUX_DIR=${dir}], )
- fi
-
- dnl then try a common default of /usr/src/linux
- if test "${LINUX_DIR}" = "default" ; then
- dir="/usr/src/linux";
- AS_TRY_LINUX_DIR([${dir}], [LINUX_DIR=${dir}], )
- fi
-
- dnl if still nothing found, fail
- if test "${LINUX_DIR}" = "default" ; then
- AC_MSG_WARN([Linux source directory not found])
- fi
-
- AC_SUBST(LINUX_DIR)
-])
-
-AC_DEFUN([AC_LINUX_SRCARCH],[
- AC_MSG_CHECKING(for linux SRCARCH)
-
- case "${host}" in
- i[[3456]]86-*) LINUX_SRCARCH=x86;;
- x86_64-*) LINUX_SRCARCH=x86;;
- powerpc*-*) LINUX_SRCARCH=powerpc;;
- s390*-*) LINUX_SRCARCH=s390;;
- arm*-*) LINUX_SRCARCH=arm;;
- mips*-*) LINUX_SRCARCH=mips;;
- sparc*-*) LINUX_SRCARCH=sparc;;
- *) AC_MSG_ERROR([architecture ${host} not supported]);;
- esac
-
- AC_MSG_RESULT(${LINUX_SRCARCH})
- AC_SUBST(LINUX_SRCARCH)
-])
diff --git a/configure.ac b/configure.ac
index e8f0cb5..c2bf4b0 100644
--- a/configure.ac
+++ b/configure.ac
@@ -65,13 +65,13 @@ AC_SUBST(LXCROOTFSMOUNT, "${with_rootfs_path}")
AC_SUBST(LXCINITDIR, ['${libexecdir}/lxc'])
AC_SUBST(LXCTEMPLATEDIR, ['${libdir}/lxc/templates'])
-AC_CHECK_HEADERS([linux/netlink.h linux/genetlink.h],
+AC_CHECK_HEADERS([linux/unistd.h linux/netlink.h linux/genetlink.h],
[],
- AC_MSG_ERROR([netlink headers not found.
Please install the linux kernel headers.]),
+ AC_MSG_ERROR([Please install the Linux kernel
headers.]),
[#include <sys/socket.h>
])
-AC_CHECK_HEADERS([sys/capability.h], [], AC_MSG_ERROR([please install
libcap-devel.]),
+AC_CHECK_HEADERS([sys/capability.h], [], AC_MSG_ERROR([Please install the
libcap development files.]),
[#include <sys/types.h>
#include <sys/capability.h>])
AC_CHECK_LIB(cap,cap_set_proc,caplib=yes,caplib=no)
@@ -91,8 +91,6 @@ AC_CHECK_HEADERS([sys/signalfd.h])
AC_PROG_GCC_TRADITIONAL
-AC_LINUX
-
if test "x$GCC" = "xyes"; then
CFLAGS="$CFLAGS -Wall"
fi
diff --git a/src/lxc/Makefile.am b/src/lxc/Makefile.am
index 3a3816e..1c26952 100644
--- a/src/lxc/Makefile.am
+++ b/src/lxc/Makefile.am
@@ -131,14 +131,3 @@ install-exec-local: install-soPROGRAMS
uninstall-local:
$(RM) $(DESTDIR)$(libdir)/liblxc.so*
-
-namespace.c: setns.h
-
-setns.h:
- -$(CC) $(CPPFLAGS) -M -MT$@
$(LINUX_DIR)/arch/$(LINUX_SRCARCH)/include/asm/unistd.h >setns.P
- -$(CPP) $(CPPFLAGS) -dM
$(LINUX_DIR)/arch/$(LINUX_SRCARCH)/include/asm/unistd.h |grep setns > $@
-
-clean-local:
- $(RM) setns.h setns.P
-
--include setns.P
diff --git a/src/lxc/attach.c b/src/lxc/attach.c
index 33da411..0ca8b39 100644
--- a/src/lxc/attach.c
+++ b/src/lxc/attach.c
@@ -30,6 +30,7 @@
#include <fcntl.h>
#include <sys/param.h>
#include <sys/prctl.h>
+#include <linux/unistd.h>
#if !HAVE_DECL_PR_CAPBSET_DROP
#define PR_CAPBSET_DROP 24
@@ -42,8 +43,6 @@
#include "cgroup.h"
#include "config.h"
-#include "setns.h"
-
lxc_log_define(lxc_attach, lxc);
int setns(int fd, int nstype)
--
1.7.4.1
------------------------------------------------------------------------------
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