legacy-support: warning: '__DISABLE_MP_LEGACY_SUPPORT_FUNCTION_WRAPPING__' is not defined, evaluates to 0

[ryandesign (Ryan Carsten Schmidt)]

Lots of warnings appear when ​building qemu with legacy support:

In file included from ../qemu-5.2.0/ui/cocoa.m:25:
In file included from /opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_emulators_qemu/qemu/work/qemu-5.2.0/include/qemu/osdep.h:58:
In file included from /opt/local/include/LegacySupport/stdlib.h:23:
In file included from /opt/local/include/LegacySupport/MacportsLegacySupport.h:24:
/opt/local/include/LegacySupport/MacportsLegacyWrappers/wrapper_macros.h:27:6: warning: '__DISABLE_MP_LEGACY_SUPPORT_FUNCTION_WRAPPING__' is not defined, evaluates to 0 [-Wundef]
#if !__DISABLE_MP_LEGACY_SUPPORT_FUNCTION_WRAPPING__
     ^
In file included from ../qemu-5.2.0/ui/cocoa.m:25:
In file included from /opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_emulators_qemu/qemu/work/qemu-5.2.0/include/qemu/osdep.h:58:
/opt/local/include/LegacySupport/stdlib.h:26:5: warning: '__DISABLE_MP_LEGACY_SUPPORT_FUNCTION_WRAPPING__' is not defined, evaluates to 0 [-Wundef]
#if __ENABLE_MP_LEGACY_SUPPORT_REALPATH_WRAP__
    ^
/opt/local/include/LegacySupport/MacportsLegacySupport.h:100:55: note: expanded from macro '__ENABLE_MP_LEGACY_SUPPORT_REALPATH_WRAP__'
#define __ENABLE_MP_LEGACY_SUPPORT_REALPATH_WRAP__  (!__DISABLE_MP_LEGACY_SUPPORT_FUNCTION_WRAPPING__  && \
                                                      ^
In file included from ../qemu-5.2.0/ui/cocoa.m:25:
In file included from /opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_emulators_qemu/qemu/work/qemu-5.2.0/include/qemu/osdep.h:58:
/opt/local/include/LegacySupport/stdlib.h:26:5: warning: '__DISABLE_MP_LEGACY_SUPPORT_REALPATH_WRAP__' is not defined, evaluates to 0 [-Wundef]
/opt/local/include/LegacySupport/MacportsLegacySupport.h:101:13: note: expanded from macro '__ENABLE_MP_LEGACY_SUPPORT_REALPATH_WRAP__'
                                                     !__DISABLE_MP_LEGACY_SUPPORT_REALPATH_WRAP__      && \
                                                      ^
In file included from ../qemu-5.2.0/ui/cocoa.m:25:
In file included from /opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_emulators_qemu/qemu/work/qemu-5.2.0/include/qemu/osdep.h:58:
/opt/local/include/LegacySupport/stdlib.h:38:5: warning: '__DISABLE_MP_LEGACY_SUPPORT_FUNCTION_WRAPPING__' is not defined, evaluates to 0 [-Wundef]
#if __ENABLE_MP_LEGACY_SUPPORT_REALPATH_WRAP__
    ^
/opt/local/include/LegacySupport/MacportsLegacySupport.h:100:55: note: expanded from macro '__ENABLE_MP_LEGACY_SUPPORT_REALPATH_WRAP__'
#define __ENABLE_MP_LEGACY_SUPPORT_REALPATH_WRAP__  (!__DISABLE_MP_LEGACY_SUPPORT_FUNCTION_WRAPPING__  && \
                                                      ^
In file included from ../qemu-5.2.0/ui/cocoa.m:25:
In file included from /opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_emulators_qemu/qemu/work/qemu-5.2.0/include/qemu/osdep.h:58:
/opt/local/include/LegacySupport/stdlib.h:38:5: warning: '__DISABLE_MP_LEGACY_SUPPORT_REALPATH_WRAP__' is not defined, evaluates to 0 [-Wundef]
/opt/local/include/LegacySupport/MacportsLegacySupport.h:101:13: note: expanded from macro '__ENABLE_MP_LEGACY_SUPPORT_REALPATH_WRAP__'
                                                     !__DISABLE_MP_LEGACY_SUPPORT_REALPATH_WRAP__      && \
                                                      ^
In file included from ../qemu-5.2.0/ui/cocoa.m:25:
In file included from /opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_emulators_qemu/qemu/work/qemu-5.2.0/include/qemu/osdep.h:93:
/opt/local/include/LegacySupport/unistd.h:84:5: warning: '__DISABLE_MP_LEGACY_SUPPORT_FUNCTION_WRAPPING__' is not defined, evaluates to 0 [-Wundef]
#if __ENABLE_MP_LEGACY_SUPPORT_SYSCONF_WRAP__
    ^
/opt/local/include/LegacySupport/MacportsLegacySupport.h:120:54: note: expanded from macro '__ENABLE_MP_LEGACY_SUPPORT_SYSCONF_WRAP__'
#define __ENABLE_MP_LEGACY_SUPPORT_SYSCONF_WRAP__  (!__DISABLE_MP_LEGACY_SUPPORT_FUNCTION_WRAPPING__  && \
                                                     ^
In file included from ../qemu-5.2.0/ui/cocoa.m:25:
In file included from /opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_emulators_qemu/qemu/work/qemu-5.2.0/include/qemu/osdep.h:93:
/opt/local/include/LegacySupport/unistd.h:84:5: warning: '__DISABLE_MP_LEGACY_SUPPORT_SYSCONF_WRAP__' is not defined, evaluates to 0 [-Wundef]
/opt/local/include/LegacySupport/MacportsLegacySupport.h:121:12: note: expanded from macro '__ENABLE_MP_LEGACY_SUPPORT_SYSCONF_WRAP__'
                                                    !__DISABLE_MP_LEGACY_SUPPORT_SYSCONF_WRAP__       && \
                                                     ^
In file included from ../qemu-5.2.0/ui/cocoa.m:25:
In file included from /opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_emulators_qemu/qemu/work/qemu-5.2.0/include/qemu/osdep.h:93:
/opt/local/include/LegacySupport/unistd.h:94:5: warning: '__DISABLE_MP_LEGACY_SUPPORT_FUNCTION_WRAPPING__' is not defined, evaluates to 0 [-Wundef]
#if __ENABLE_MP_LEGACY_SUPPORT_SYSCONF_WRAP__
    ^
/opt/local/include/LegacySupport/MacportsLegacySupport.h:120:54: note: expanded from macro '__ENABLE_MP_LEGACY_SUPPORT_SYSCONF_WRAP__'
#define __ENABLE_MP_LEGACY_SUPPORT_SYSCONF_WRAP__  (!__DISABLE_MP_LEGACY_SUPPORT_FUNCTION_WRAPPING__  && \
                                                     ^
In file included from ../qemu-5.2.0/ui/cocoa.m:25:
In file included from /opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_emulators_qemu/qemu/work/qemu-5.2.0/include/qemu/osdep.h:93:
/opt/local/include/LegacySupport/unistd.h:94:5: warning: '__DISABLE_MP_LEGACY_SUPPORT_SYSCONF_WRAP__' is not defined, evaluates to 0 [-Wundef]
/opt/local/include/LegacySupport/MacportsLegacySupport.h:121:12: note: expanded from macro '__ENABLE_MP_LEGACY_SUPPORT_SYSCONF_WRAP__'
                                                    !__DISABLE_MP_LEGACY_SUPPORT_SYSCONF_WRAP__       && \
                                                     ^

[kencu (Ken)]

yes. I have a fix for this ready to push.

[cjones051073 (Chris Jones)]

Ken, why have you assigned this to me ? Was the fix you mentioned 6 months ago pushed ?