What does "Exit code: 11" mean when building CMake?

[Jeffrey Walton]

Hi Everyone,

I'm trying to build CMake for a PowerMac G5. I elevated and then:

root# CC=/opt/local/bin/gcc-mp-5 \
    CXX=/opt/local/bin/g++-mp-5 \
    /opt/local/bin/port install cmake

The build fails. The tail of cmake/main.log shows the info below. What
is the Exit code: 11?

(I'd also be interested in knowing why CMake is not using the compiler
I told it to use, but that is more curiosity then anything else).

-----

:info:configure ---------------------------------------------
:info:configure CMake 3.16.5, Copyright 2000-2019 Kitware, Inc. and Contributors
:info:configure C compiler on this system is: /opt/local/bin/gcc-mp-7
-pipe -Os -I/opt/local/include/LegacySupport -arch ppc
:info:configure C++ compiler on this system is:
/opt/local/bin/g++-mp-7 -pipe -Os -D_GLIBCXX_USE_CXX11_ABI=0 -arch ppc
:info:configure Makefile processor on this system is: make
:info:configure /opt/local/bin/g++-mp-7 has setenv
:info:configure /opt/local/bin/g++-mp-7 has unsetenv
:info:configure /opt/local/bin/g++-mp-7 does not have environ in stdlib.h
:info:configure /opt/local/bin/g++-mp-7 has stl wstring
:info:configure /opt/local/bin/g++-mp-7 has <ext/stdio_filebuf.h>
:info:configure ---------------------------------------------
:info:configure make: `cmake' is up to date.
:info:configure cmake(21475) malloc: *** error for object 0xa09363dc:
Non-aligned pointer being freed
:info:configure *** set a breakpoint in malloc_error_break to debug
:info:configure cmake(21475) malloc: *** error for object 0xa093636c:
Non-aligned pointer being freed
:info:configure *** set a breakpoint in malloc_error_break to debug
:info:configure loading initial cache file
/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_devel_cmake/cmake/work/cmake-3.16.5/Bootstrap.cmk/InitialCacheFlags.cmake
:info:configure ./bootstrap: line 1676: 21475 Bus error
"${cmake_bootstrap_dir}/cmake" "${cmake_source_dir}"
"-C${cmake_bootstrap_dir}/InitialCacheFlags.cmake"
"-G${cmake_bootstrap_generator}" ${cmake_options}
${cmake_bootstrap_system_libs} "$@"
:info:configure ---------------------------------------------
:info:configure Error when bootstrapping CMake:
:info:configure Problem while running initial CMake
:info:configure ---------------------------------------------
:info:configure Command failed:  cd
"/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_devel_cmake/cmake/work/cmake-3.16.5"
&& ./bootstrap --prefix=/opt/local --docdir=share/doc/cmake
--parallel=2 --init=/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_devel_cmake/cmake/work/cmake-3.16.5/macports.cmake
--system-libs --no-system-jsoncpp --no-system-librhash --no-qt-gui --
:info:configure Exit code: 11
:error:configure Failed to configure cmake: configure failure: command
execution failed
:debug:configure Error code: NONE
:debug:configure Backtrace: configure failure: command execution failed
:debug:configure     while executing
:debug:configure "$procedure $targetname"
:error:configure See
/opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_devel_cmake/cmake/main.log
for details.