dump env vars
ZEF_TEST_DEGREE=1
ZEF_FETCH_DEGREE=1
install [Chart::EasyGnuplot]
...
/tmp/whateverable/rakudo-moar/fe0e20c28859ea709eefad19af452c9d35dff20d/share/perl6/site/bin/zef
1.0.0
/tmp/whateverable/rakudo-moar/fe0e20c28859ea709eefad19af452c9d35dff20d/bin//raku
Welcome to Rakudo™ v2025.11.
Implementing the Raku® Programming Language v6.d.
Built on MoarVM version 2025.11.
===> Searching for: Chart::EasyGnuplot
Aborting due to build failure: Chart::Gnuplot:ver<0.0.21> (use --force-build to override)
===> Searching for missing dependencies: Chart::Gnuplot
===> Building: Chart::Gnuplot:ver<0.0.21>
[Chart::Gnuplot] configure: WARNING:
[Chart::Gnuplot] Package requirements (libcerf) were not met:
[Chart::Gnuplot] Package 'libcerf', required by 'virtual:world', not found
[Chart::Gnuplot] Consider adjusting the PKG_CONFIG_PATH environment variable if you
[Chart::Gnuplot] installed software in a non-standard prefix.
[Chart::Gnuplot] Alternatively, you may set the environment variables LIBCERF_CFLAGS
[Chart::Gnuplot] and LIBCERF_LIBS to avoid the need to call pkg-config.
[Chart::Gnuplot] See the pkg-config man page for more details.
[Chart::Gnuplot] configure: WARNING: GNU readline not found - falling back to builtin readline
[Chart::Gnuplot] configure: WARNING: Could not find support for lua using pkg-config.
[Chart::Gnuplot] configure: WARNING: wxWidgets can't be found. You can try --with-wx=DIR to give the right path to wx-config. The wxWidgets terminal will not be compiled.
[Chart::Gnuplot] configure: WARNING:
[Chart::Gnuplot] Package requirements (Qt5Core Qt5Gui Qt5Network Qt5Svg Qt5PrintSupport) were not met:
[Chart::Gnuplot] Package 'Qt5Core', required by 'virtual:world', not found
[Chart::Gnuplot] Package 'Qt5Gui', required by 'virtual:world', not found
[Chart::Gnuplot] Package 'Qt5Network', required by 'virtual:world', not found
[Chart::Gnuplot] Package 'Qt5Svg', required by 'virtual:world', not found
[Chart::Gnuplot] Package 'Qt5PrintSupport', required by 'virtual:world', not found
[Chart::Gnuplot] Consider adjusting the PKG_CONFIG_PATH environment variable if you
[Chart::Gnuplot] installed software in a non-standard prefix.
[Chart::Gnuplot] Alternatively, you may set the environment variables QT_CFLAGS
[Chart::Gnuplot] and QT_LIBS to avoid the need to call pkg-config.
[Chart::Gnuplot] See the pkg-config man page for more details.
[Chart::Gnuplot] configure: WARNING:
[Chart::Gnuplot] Package requirements (QtCore >= 4.5 QtGui >= 4.5 QtNetwork >= 4.5 QtSvg >= 4.5) were not met:
[Chart::Gnuplot] Package 'QtCore', required by 'virtual:world', not found
[Chart::Gnuplot] Package 'QtGui', required by 'virtual:world', not found
[Chart::Gnuplot] Package 'QtNetwork', required by 'virtual:world', not found
[Chart::Gnuplot] Package 'QtSvg', required by 'virtual:world', not found
[Chart::Gnuplot] Consider adjusting the PKG_CONFIG_PATH environment variable if you
[Chart::Gnuplot] installed software in a non-standard prefix.
[Chart::Gnuplot] Alternatively, you may set the environment variables QT_CFLAGS
[Chart::Gnuplot] and QT_LIBS to avoid the need to call pkg-config.
[Chart::Gnuplot] See the pkg-config man page for more details.
[Chart::Gnuplot] configure: WARNING: The Qt terminal will not be compiled.
[Chart::Gnuplot] mouse.c: In function 'xy_format':
[Chart::Gnuplot] mouse.c:428:5: warning: 'strncat' specified bound 2 equals source length [-Wstringop-overflow=]
[Chart::Gnuplot]   428 |     strncat(format, ", ", 2);
[Chart::Gnuplot]       |     ^~~~~~~~~~~~~~~~~~~~~~~~
[Chart::Gnuplot] readline.c: In function 'mbwidth':
[Chart::Gnuplot] readline.c:417:20: error: implicit declaration of function 'wcwidth'; did you mean 'mbwidth'? [-Wimplicit-function-declaration]
[Chart::Gnuplot]   417 |             return wcwidth(wc);
[Chart::Gnuplot]       |                    ^~~~~~~
[Chart::Gnuplot]       |                    mbwidth
[Chart::Gnuplot] make[4]: *** [Makefile:901: readline.o] Error 1
[Chart::Gnuplot] make[3]: *** [Makefile:960: all-recursive] Error 1
[Chart::Gnuplot] make[2]: *** [Makefile:634: all] Error 2
[Chart::Gnuplot] make[1]: *** [Makefile:417: all-recursive] Error 1
[Chart::Gnuplot] make: *** [Makefile:355: all] Error 2
[Chart::Gnuplot] The spawned command 'make' exited unsuccessfully (exit code: 2, signal: 0)
[Chart::Gnuplot]   in method install-gnuplot at /tmp/.zef.1764087951.204926/Chart%3A%3AGnuplot%3Aver%3C0.0.21%3E%3Aauth%3Ccpan%3ATITSUKI%3E.tar.gz/Chart-Gnuplot-0.0.21/lib/Chart/Gnuplot/CustomBuilder.pm6 (Chart::Gnuplot::CustomBuilder) line 45
[Chart::Gnuplot]   in method build at /tmp/.zef.1764087951.204926/Chart%3A%3AGnuplot%3Aver%3C0.0.21%3E%3Aauth%3Ccpan%3ATITSUKI%3E.tar.gz/Chart-Gnuplot-0.0.21/lib/Chart/Gnuplot/CustomBuilder.pm6 (Chart::Gnuplot::CustomBuilder) line 20
[Chart::Gnuplot]   in block <unit> at -e line 1
===> Building [FAIL]: Chart::Gnuplot:ver<0.0.21>