Hi Daniel, here is the errors i got trying to recompile the util vserver recently, the fatal error is at the end : In file included from lib/syscall-compat.hc:24:0, from lib/syscall.c:36: lib/safechroot-internal.hc:44:33: warning: always_inline function might not be inlinable [-Wattributes] static ALWAYSINLINE UNUSED void vc_tell_unsafe_chroot() {} ^~~~~~~~~~~~~~~~~~~~~ lib/syscall_getnxinfo.c: In function ‘vc_get_nx_info’: lib/syscall_getnxinfo.c:35:6: warning: nonnull argument ‘info’ compared to NULL [-Wnonnull-compare] if (info==0) { ^ lib/syscall_getvxinfo.c: In function ‘vc_get_vx_info’: lib/syscall_getvxinfo.c:42:6: warning: nonnull argument ‘info’ compared to NULL [-Wnonnull-compare] if (info==0) { ^ lib/syscall_setcflags.c: In function ‘vc_set_cflags’: lib/syscall_setcflags.c:35:6: warning: nonnull argument ‘flags’ compared to NULL [-Wnonnull-compare] if (flags==0) { ^ lib_internal/matchlist-initmanually.c: In function ‘MatchList_initManually’: lib_internal/matchlist-initmanually.c:188:6: warning: nonnull argument ‘exclude_file’ compared to NULL [-Wnonnull-compare] if (exclude_file && *exclude_file) { ^ lib_internal/matchlist-initmanually.c: In function ‘MatchList_initManually’: lib_internal/matchlist-initmanually.c:188:6: warning: nonnull argument ‘exclude_file’ compared to NULL [-Wnonnull-compare] if (exclude_file && *exclude_file) { ^ and the fatal error: In file included from lib_internal/util-cleanupmount.c:25:0: /usr/include/linux/fs.h:366:23: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘__kernel_rwf_t’ typedef int __bitwise __kernel_rwf_t; ^~~~~~~~~~~~~~ debian/rules:23: recipe for target 'build' failed dpkg-buildpackage: error: debian/rules build subprocess returned exit status 2 best regards, Ghislain.