I'm on Debian 7.4 (the current stable one), gcc is "gcc (Debian 4.7.2-5) 4.7.2". I get lots of warnings, but also a compilation error.
I also get one warning at autogen time and one warning at configure time. For the compilation error: I have libc6-dev in version 2.13-38+deb7u1. Doesn't that one define setns? The libc6-dev *.deb provides /usr/include/i386-linux-gnu/bits/syscall.h, which at least defines SYS_setns. $ git describe v209-1-g6300b3e $ git clean -fdx $ ./autogen.sh ... configure.ac:37: installing `build-aux/missing' Makefile.am:36: user target `.PRECIOUS' defined here... /usr/share/automake-1.11/am/configure.am: ... overrides Automake target `.PRECIOUS' defined here ... $ ./configure ... checking for LIBGCRYPT - version >= 1.4.5... yes (1.5.0) configure: WARNING: *** *** The config script /usr/bin/libgcrypt-config was *** built for i486-pc-linux-gnu and thus may not match the *** used host i686-pc-linux-gnu. *** You may want to use the configure option --with-libgcrypt-prefix *** to specify a matching config script. *** checking libaudit.h usability... yes ... $ make ... CC src/libsystemd/sd-bus/libsystemd_la-bus-kernel.lo src/libsystemd/sd-bus/bus-kernel.c: In function 'bus_message_setup_kmsg': src/libsystemd/sd-bus/bus-kernel.c:230:9: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement] src/libsystemd/sd-bus/bus-kernel.c: In function 'bus_kernel_create_bus': src/libsystemd/sd-bus/bus-kernel.c:1301:9: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement] src/libsystemd/sd-bus/bus-kernel.c:1302:9: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement] ... CC src/core/libsystemd_core_la-namespace.lo src/core/namespace.c: In function 'setup_netns': src/core/namespace.c:495:17: warning: implicit declaration of function 'setns' [-Wimplicit-function-declaration] src/core/namespace.c:495:17: warning: nested extern declaration of 'setns' [-Wnested-externs] ... CC src/shared/conf-parser.lo src/shared/conf-parser.c: In function 'config_parse_bytes_off': src/shared/conf-parser.c:493:9: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement] ... CCLD libsystemd.la src/libsystemd/sd-bus/.libs/libsystemd_la-bus-message.o (symbol from plugin): warning: memset used with constant zero length parameter; this could be due to transposed parameters ... CC src/libsystemd/sd-bus/libsystemd_internal_la-bus-kernel.lo src/libsystemd/sd-bus/bus-kernel.c: In function 'bus_message_setup_kmsg': src/libsystemd/sd-bus/bus-kernel.c:230:9: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement] src/libsystemd/sd-bus/bus-kernel.c: In function 'bus_kernel_create_bus': src/libsystemd/sd-bus/bus-kernel.c:1301:9: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement] src/libsystemd/sd-bus/bus-kernel.c:1302:9: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement] ... CCLD libudev.la libsystemd_internal_la-bus-message.o (symbol from plugin): warning: memset used with constant zero length parameter; this could be due to transposed parameters ... CC src/shared/libsystemd_capability_la-capability.lo src/shared/capability.c: In function 'drop_from_file': src/shared/capability.c:174:9: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement] src/shared/capability.c:175:9: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement] ... CC src/core/libsystemd_core_la-manager.lo src/core/manager.c: In function 'manager_setup_time_change': src/core/manager.c:238:9: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement] CC src/core/libsystemd_core_la-transaction.lo CC src/core/libsystemd_core_la-load-fragment.lo src/core/load-fragment.c: In function 'config_parse_memory_limit': src/core/load-fragment.c:2279:9: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement] ... CC src/core/libsystemd_core_la-dbus-manager.lo src/core/dbus-manager.c: In function 'property_set_runtime_watchdog': src/core/dbus-manager.c:284:9: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement] src/core/dbus-manager.c: In function 'method_get_unit_by_pid': src/core/dbus-manager.c:334:9: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement] ... CC src/core/libsystemd_core_la-namespace.lo src/core/namespace.c: In function 'setup_netns': src/core/namespace.c:495:17: warning: implicit declaration of function 'setns' [-Wimplicit-function-declaration] src/core/namespace.c:495:17: warning: nested extern declaration of 'setns' [-Wnested-externs] ... CC src/udev/net/libudev_core_la-link-config.lo src/udev/net/link-config.c: In function 'get_mac': src/udev/net/link-config.c:334:17: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement] ... CC src/machine/machined-dbus.lo src/machine/machined-dbus.c: In function 'method_get_machine_by_pid': src/machine/machined-dbus.c:99:9: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement] src/machine/machined-dbus.c: In function 'method_create_or_register_machine': src/machine/machined-dbus.c:227:17: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement] ... src/login/logind-dbus.c: In function 'method_get_session_by_pid': src/login/logind-dbus.c:170:9: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement] src/login/logind-dbus.c: In function 'method_get_user_by_pid': src/login/logind-dbus.c:238:9: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement] src/login/logind-dbus.c: In function 'method_create_session': src/login/logind-dbus.c:573:17: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement] ... CCLD pam_systemd.la libsystemd_internal_la-bus-message.o (symbol from plugin): warning: memset used with constant zero length parameter; this could be due to transposed parameters /tmp/ccSsUdbL.ltrans11.ltrans.o: In function `namespace_enter': ccSsUdbL.ltrans11.o:(.text+0xf94): undefined reference to `setns' ccSsUdbL.ltrans11.o:(.text+0xfa8): undefined reference to `setns' collect2: error: ld returned 1 exit status make[2]: *** [pam_systemd.la] Error 1 make[1]: *** [all-recursive] Error 1 make: *** [all] Error 2 _______________________________________________ systemd-devel mailing list systemd-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/systemd-devel