=> Bootstrap dependency digest>=20211023: found digest-20220214 ===> Installing for ruby27-glib2-4.1.4 => Generating pre-install file lists => Installing gem into installation root Building native extensions. This could take a while... ERROR: Error installing /Users/pbulk/build/devel/ruby-glib2/work/glib2-4.1.4/glib2-4.1.4.gem: ERROR: Failed to build gem native extension. current directory: /Users/pbulk/build/devel/ruby-glib2/work/.inst/opt/pkg/lib/ruby/gems/2.7.0/gems/glib2-4.1.4/ext/glib2 /opt/pkg/bin/ruby27 -I /opt/pkg/lib/ruby/2.7.0 -r ./siteconf20230507-1916-1oy7zb4.rb extconf.rb checking for --enable-debug-build option... no checking for -Wall option to compiler... yes checking for -Wcast-align option to compiler... yes checking for -Wextra option to compiler... yes checking for -Wformat=2 option to compiler... yes checking for -Winit-self option to compiler... yes checking for -Wlarger-than-65500 option to compiler... yes checking for -Wmissing-declarations option to compiler... yes checking for -Wmissing-format-attribute option to compiler... yes checking for -Wmissing-include-dirs option to compiler... yes checking for -Wmissing-noreturn option to compiler... yes checking for -Wmissing-prototypes option to compiler... yes checking for -Wnested-externs option to compiler... yes checking for -Wold-style-definition option to compiler... yes checking for -Wpacked option to compiler... yes checking for -Wp,-D_FORTIFY_SOURCE=2 option to compiler... yes checking for -Wpointer-arith option to compiler... yes checking for -Wundef option to compiler... yes checking for -Wout-of-line-declaration option to compiler... yes checking for -Wunsafe-loop-optimizations option to compiler... no checking for -Wwrite-strings option to compiler... yes checking for Homebrew... no checking for gobject-2.0 version (>= 2.12.0)... yes (2.74.6) [BUG] Segmentation fault at 0x00000000578a0620 ruby 2.7.8p225 (2023-03-30 revision 1f4d455848) [aarch64-darwin22] -- Crash Report log information -------------------------------------------- See Crash Report log file under the one of following: * ~/Library/Logs/DiagnosticReports * /Library/Logs/DiagnosticReports for more details. Don't forget to include the above Crash Report log file in bug reports. -- Control frame information ----------------------------------------------- c:0001 p:---- s:0003 e:000002 (none) [FINISH] -- Other runtime information ----------------------------------------------- * Loaded script: extconf.rb * Loaded features: 0 enumerator.so 1 thread.rb 2 rational.so 3 complex.so 4 ruby2_keywords.rb 5 /opt/pkg/lib/ruby/2.7.0/aarch64-darwin22/enc/encdb.bundle 6 /opt/pkg/lib/ruby/2.7.0/aarch64-darwin22/enc/trans/transdb.bundle 7 /opt/pkg/lib/ruby/2.7.0/aarch64-darwin22/rbconfig.rb 8 /opt/pkg/lib/ruby/2.7.0/rubygems/compatibility.rb 9 /opt/pkg/lib/ruby/2.7.0/rubygems/defaults.rb 10 /opt/pkg/lib/ruby/2.7.0/rubygems/deprecate.rb 11 /opt/pkg/lib/ruby/2.7.0/rubygems/errors.rb 12 /opt/pkg/lib/ruby/2.7.0/rubygems/version.rb 13 /opt/pkg/lib/ruby/2.7.0/rubygems/requirement.rb 14 /opt/pkg/lib/ruby/2.7.0/rubygems/platform.rb 15 /opt/pkg/lib/ruby/2.7.0/rubygems/basic_specification.rb 16 /opt/pkg/lib/ruby/2.7.0/rubygems/stub_specification.rb 17 /opt/pkg/lib/ruby/2.7.0/rubygems/util.rb 18 /opt/pkg/lib/ruby/2.7.0/rubygems/text.rb 19 /opt/pkg/lib/ruby/2.7.0/rubygems/user_interaction.rb 20 /opt/pkg/lib/ruby/2.7.0/rubygems/specification_policy.rb 21 /opt/pkg/lib/ruby/2.7.0/rubygems/util/list.rb 22 /opt/pkg/lib/ruby/2.7.0/rubygems/specification.rb 23 /opt/pkg/lib/ruby/2.7.0/rubygems/exceptions.rb 24 /opt/pkg/lib/ruby/2.7.0/rubygems/bundler_version_finder.rb 25 /opt/pkg/lib/ruby/2.7.0/rubygems/dependency.rb 26 /opt/pkg/lib/ruby/2.7.0/rubygems/core_ext/kernel_gem.rb 27 /opt/pkg/lib/ruby/2.7.0/aarch64-darwin22/monitor.bundle 28 /opt/pkg/lib/ruby/2.7.0/monitor.rb 29 /opt/pkg/lib/ruby/2.7.0/rubygems/core_ext/kernel_require.rb 30 /opt/pkg/lib/ruby/2.7.0/rubygems/core_ext/kernel_warn.rb 31 /opt/pkg/lib/ruby/2.7.0/rubygems.rb 32 /opt/pkg/lib/ruby/2.7.0/did_you_mean/version.rb 33 /opt/pkg/lib/ruby/2.7.0/did_you_mean/core_ext/name_error.rb 34 /opt/pkg/lib/ruby/2.7.0/did_you_mean/levenshtein.rb 35 /opt/pkg/lib/ruby/2.7.0/did_you_mean/jaro_winkler.rb 36 /opt/pkg/lib/ruby/2.7.0/did_you_mean/spell_checker.rb 37 /opt/pkg/lib/ruby/2.7.0/did_you_mean/spell_checkers/name_error_checkers/class_name_checker.rb 38 /opt/pkg/lib/ruby/2.7.0/did_you_mean/spell_checkers/name_error_checkers/variable_name_checker.rb 39 /opt/pkg/lib/ruby/2.7.0/did_you_mean/spell_checkers/name_error_checkers.rb 40 /opt/pkg/lib/ruby/2.7.0/did_you_mean/spell_checkers/method_name_checker.rb 41 /opt/pkg/lib/ruby/2.7.0/did_you_mean/spell_checkers/key_error_checker.rb 42 /opt/pkg/lib/ruby/2.7.0/did_you_mean/spell_checkers/null_checker.rb 43 /opt/pkg/lib/ruby/2.7.0/did_you_mean/formatters/plain_formatter.rb 44 /opt/pkg/lib/ruby/2.7.0/did_you_mean/tree_spell_checker.rb 45 /opt/pkg/lib/ruby/2.7.0/did_you_mean.rb 46 /Users/pbulk/build/devel/ruby-glib2/work/.inst/opt/pkg/lib/ruby/gems/2.7.0/gems/glib2-4.1.4/ext/glib2/siteconf20230507-1916-1oy7zb4.rb 47 /opt/pkg/lib/ruby/2.7.0/aarch64-darwin22/pathname.bundle 48 /opt/pkg/lib/ruby/2.7.0/pathname.rb 49 /opt/pkg/lib/ruby/2.7.0/English.rb 50 /opt/pkg/lib/ruby/2.7.0/fileutils.rb 51 /opt/pkg/lib/ruby/2.7.0/shellwords.rb 52 /opt/pkg/lib/ruby/2.7.0/mkmf.rb 53 /opt/pkg/lib/ruby/2.7.0/rubygems/path_support.rb 54 /opt/pkg/lib/ruby/gems/2.7.0/gems/pkg-config-1.5.1/lib/pkg-config/version.rb 55 /opt/pkg/lib/ruby/gems/2.7.0/gems/pkg-config-1.5.1/lib/pkg-config.rb 56 /Users/pbulk/build/devel/ruby-glib2/work/.inst/opt/pkg/lib/ruby/gems/2.7.0/gems/glib2-4.1.4/lib/glib-mkenums.rb 57 /opt/pkg/lib/ruby/gems/2.7.0/gems/native-package-installer-1.1.5/lib/native-package-installer/version.rb 58 /opt/pkg/lib/ruby/gems/2.7.0/gems/native-package-installer-1.1.5/lib/native-package-installer/executable-finder.rb 59 /opt/pkg/lib/ruby/gems/2.7.0/gems/native-package-installer-1.1.5/lib/native-package-installer/os-release.rb 60 /opt/pkg/lib/ruby/gems/2.7.0/gems/native-package-installer-1.1.5/lib/native-package-installer/platform/macports.rb 61 /opt/pkg/lib/ruby/gems/2.7.0/gems/native-package-installer-1.1.5/lib/native-package-installer/platform/homebrew.rb 62 /opt/pkg/lib/ruby/gems/2.7.0/gems/native-package-installer-1.1.5/lib/native-package-installer/platform/freebsd.rb 63 /opt/pkg/lib/ruby/gems/2.7.0/gems/native-package-installer-1.1.5/lib/native-package-installer/platform/arch-linux.rb 64 /opt/pkg/lib/ruby/gems/2.7.0/gems/native-package-installer-1.1.5/lib/native-package-installer/platform/gentoo-linux.rb 65 /opt/pkg/lib/ruby/gems/2.7.0/gems/native-package-installer-1.1.5/lib/native-package-installer/platform/debian.rb 66 /opt/pkg/lib/ruby/gems/2.7.0/gems/native-package-installer-1.1.5/lib/native-package-installer/platform/ubuntu.rb 67 /opt/pkg/lib/ruby/gems/2.7.0/gems/native-package-installer-1.1.5/lib/native-package-installer/platform/alt-linux.rb 68 /opt/pkg/lib/ruby/gems/2.7.0/gems/native-package-installer-1.1.5/lib/native-package-installer/platform/pld-linux.rb 69 /opt/pkg/lib/ruby/gems/2.7.0/gems/native-package-installer-1.1.5/lib/native-package-installer/platform/red-hat-enterprise-linux.rb 70 /opt/pkg/lib/ruby/gems/2.7.0/gems/native-package-installer-1.1.5/lib/native-package-installer/platform/amazon-linux.rb 71 /opt/pkg/lib/ruby/gems/2.7.0/gems/native-package-installer-1.1.5/lib/native-package-installer/platform/fedora.rb 72 /opt/pkg/lib/ruby/gems/2.7.0/gems/native-package-installer-1.1.5/lib/native-package-installer/platform/suse.rb 73 /opt/pkg/lib/ruby/gems/2.7.0/gems/native-package-installer-1.1.5/lib/native-package-installer/platform/msys2.rb 74 /opt/pkg/lib/ruby/gems/2.7.0/gems/native-package-installer-1.1.5/lib/native-package-installer/platform/unknown.rb 75 /opt/pkg/lib/ruby/gems/2.7.0/gems/native-package-installer-1.1.5/lib/native-package-installer/platform.rb 76 /opt/pkg/lib/ruby/gems/2.7.0/gems/native-package-installer-1.1.5/lib/native-package-installer.rb 77 /Users/pbulk/build/devel/ruby-glib2/work/.inst/opt/pkg/lib/ruby/gems/2.7.0/gems/glib2-4.1.4/lib/mkmf-gnome.rb * Process memory map: 100950000-100954000 r-x /opt/pkg/bin/ruby27 100954000-100958000 r-- /opt/pkg/bin/ruby27 100958000-10095c000 rw- /opt/pkg/bin/ruby27 10095c000-100960000 r-- /opt/pkg/bin/ruby27 100960000-1009a0000 rw- /opt/pkg/lib/ruby/2.7.0/aarch64-darwin22/enc/encdb.bundle 1009a0000-1009a4000 --- /opt/pkg/lib/ruby/2.7.0/aarch64-darwin22/enc/encdb.bundle 1009a4000-1009ac000 rw- /opt/pkg/lib/ruby/2.7.0/aarch64-darwin22/enc/encdb.bundle 1009ac000-1009b0000 r-- /opt/pkg/lib/ruby/2.7.0/aarch64-darwin22/enc/encdb.bundle 1009b0000-1009b4000 r-- /opt/pkg/lib/ruby/2.7.0/aarch64-darwin22/enc/encdb.bundle 1009b4000-1009b8000 rw- /opt/pkg/lib/ruby/2.7.0/aarch64-darwin22/enc/encdb.bundle 1009b8000-1009bc000 --- /opt/pkg/lib/ruby/2.7.0/aarch64-darwin22/enc/encdb.bundle 1009bc000-1009c4000 rw- /opt/pkg/lib/ruby/2.7.0/aarch64-darwin22/enc/encdb.bundle 1009c4000-1009c8000 --- /opt/pkg/lib/ruby/2.7.0/aarch64-darwin22/enc/encdb.bundle 1009c8000-1009cc000 --- /opt/pkg/lib/ruby/2.7.0/aarch64-darwin22/enc/encdb.bundle 1009cc000-1009d4000 rw- /opt/pkg/lib/ruby/2.7.0/aarch64-darwin22/enc/encdb.bundle 1009d4000-1009d8000 --- /opt/pkg/lib/ruby/2.7.0/aarch64-darwin22/enc/encdb.bundle 1009d8000-1009dc000 --- /opt/pkg/lib/ruby/2.7.0/aarch64-darwin22/enc/encdb.bundle 1009dc000-1009e4000 rw- /opt/pkg/lib/ruby/2.7.0/aarch64-darwin22/enc/encdb.bundle 1009e4000-1009e8000 --- /opt/pkg/lib/ruby/2.7.0/aarch64-darwin22/enc/encdb.bundle 1009e8000-1009ec000 r-- /opt/pkg/lib/ruby/2.7.0/aarch64-darwin22/enc/encdb.bundle 1009ec000-1009f0000 r-- /opt/pkg/lib/ruby/2.7.0/aarch64-darwin22/enc/encdb.bundle 1009f0000-1009f4000 rw- /opt/pkg/lib/ruby/2.7.0/aarch64-darwin22/enc/encdb.bundle 1009f4000-1009f8000 r-- /opt/pkg/lib/ruby/2.7.0/aarch64-darwin22/enc/encdb.bundle 100a04000-100a08000 r-x /opt/pkg/lib/ruby/2.7.0/aarch64-darwin22/enc/encdb.bundle 100a08000-100a0c000 r-- /opt/pkg/lib/ruby/2.7.0/aarch64-darwin22/enc/encdb.bundle 100a0c000-100a10000 rw- /opt/pkg/lib/ruby/2.7.0/aarch64-darwin22/enc/encdb.bundle 100a10000-100a14000 r-- /opt/pkg/lib/ruby/2.7.0/aarch64-darwin22/enc/encdb.bundle 100a14000-100a18000 r-x /opt/pkg/lib/ruby/2.7.0/aarch64-darwin22/enc/trans/transdb.bundle 100a18000-100a1c000 r-- /opt/pkg/lib/ruby/2.7.0/aarch64-darwin22/enc/trans/transdb.bundle 100a1c000-100a20000 rw- /opt/pkg/lib/ruby/2.7.0/aarch64-darwin22/enc/trans/transdb.bundle 100a20000-100a24000 r-- /opt/pkg/lib/ruby/2.7.0/aarch64-darwin22/enc/trans/transdb.bundle 100a34000-100a38000 r-x /opt/pkg/lib/ruby/2.7.0/aarch64-darwin22/monitor.bundle 100a38000-100a3c000 r-- /opt/pkg/lib/ruby/2.7.0/aarch64-darwin22/monitor.bundle 100a3c000-100a40000 rw- /opt/pkg/lib/ruby/2.7.0/aarch64-darwin22/monitor.bundle 100a40000-100a44000 r-- /opt/pkg/lib/ruby/2.7.0/aarch64-darwin22/monitor.bundle 100a58000-100a60000 r-x /opt/pkg/lib/ruby/2.7.0/aarch64-darwin22/pathname.bundle 100a60000-100a64000 r-- /opt/pkg/lib/ruby/2.7.0/aarch64-darwin22/pathname.bundle 100a64000-100a68000 rw- /opt/pkg/lib/ruby/2.7.0/aarch64-darwin22/pathname.bundle 100a68000-100a6c000 r-- /opt/pkg/lib/ruby/2.7.0/aarch64-darwin22/pathname.bundle 100da8000-100e04000 rw- /opt/pkg/lib/libruby27.2.7.8.dylib 100e04000-100e08000 --- /opt/pkg/lib/libruby27.2.7.8.dylib 100e08000-101048000 r-x /opt/pkg/lib/libruby27.2.7.8.dylib 101048000-101050000 r-- /opt/pkg/lib/libruby27.2.7.8.dylib 101050000-101054000 rw- /opt/pkg/lib/libruby27.2.7.8.dylib 101054000-101068000 rw- /opt/pkg/lib/libruby27.2.7.8.dylib 101068000-1010cc000 r-- /opt/pkg/lib/libruby27.2.7.8.dylib 1010cc000-1010d0000 --- 1010d0000-101174000 rw- 101174000-101178000 --- 101178000-10121c000 rw- 10121c000-101220000 --- 101220000-1012c4000 rw- 1012c4000-1012c8000 --- 1012c8000-10136c000 rw- 10136c000-101370000 --- 101370000-101414000 rw- 101414000-101418000 --- 101418000-1014bc000 rw- 1014bc000-1014c0000 --- 1014c0000-101564000 rw- 101564000-101568000 --- 101568000-10160c000 rw- 10160c000-101610000 --- 101610000-1016b4000 rw- 1016b4000-1016b8000 --- 1016b8000-10175c000 rw- 10175c000-101760000 --- 101760000-101804000 rw- 101804000-101808000 --- 101808000-1018ac000 rw- 1018ac000-1018b0000 --- 1018b0000-101954000 rw- 101954000-101958000 --- 101958000-1019fc000 rw- 1019fc000-101a00000 --- 101a00000-101aa4000 rw- 101aa4000-101aa8000 --- 101aa8000-101b4c000 rw- 101b4c000-101b50000 --- 101b50000-101bf4000 rw- 101bf4000-101bf8000 --- 101bf8000-101c9c000 rw- 101c9c000-101ca0000 --- 101ca0000-101d44000 rw- 101d44000-101d48000 --- 101d48000-101dec000 rw- 101dec000-101df0000 --- 101df0000-101e94000 rw- 101e94000-101e98000 --- 101e98000-101f3c000 rw- 101f3c000-101f40000 --- 101f40000-101fe4000 rw- 101fe4000-101fe8000 --- 101fe8000-10208c000 rw- 10208c000-102090000 --- 102090000-102134000 rw- 102134000-102138000 --- 102138000-1021dc000 rw- 1021dc000-1021e0000 --- 1021e0000-102284000 rw- 102284000-102288000 --- 102288000-10232c000 rw- 10232c000-102330000 --- 102330000-1023d4000 rw- 1023d4000-1023d8000 --- 1023d8000-10247c000 rw- 10247c000-102480000 --- 102480000-102524000 rw- 102524000-102528000 --- 102528000-1025cc000 rw- 106e00000-106f00000 rw- 106f00000-107000000 rw- 107000000-107800000 rw- 107800000-108000000 rw- 108000000-108800000 rw- 108800000-109000000 rw- 109000000-109800000 rw- 109800000-10a000000 rw- 10a000000-10a800000 rw- 10a800000-10b000000 rw- 10b000000-10b800000 rw- 10b800000-10c000000 rw- 10c000000-10c800000 rw- 10c800000-10d000000 rw- 10d000000-10d800000 rw- 10d800000-10e000000 rw- 10e000000-10e800000 rw- 10e800000-10f000000 rw- 10f000000-10f800000 rw- 10f800000-110000000 rw- 118000000-118800000 rw- 118800000-119000000 rw- 119000000-119800000 rw- 119800000-11a000000 rw- 11a000000-11a800000 rw- 11a800000-11b000000 rw- 11b000000-11b800000 rw- 11b800000-11c000000 rw- 11c000000-11c800000 rw- 11c800000-11d000000 rw- 11d000000-11d800000 rw- 11d800000-11e000000 rw- 11e000000-11e800000 rw- 11e800000-11f000000 rw- 11f000000-11f800000 rw- 11f800000-120000000 rw- 120000000-120800000 rw- 120800000-121000000 rw- 121000000-121800000 rw- 121800000-122000000 rw- 122000000-122800000 rw- 122800000-123000000 rw- 123000000-123800000 rw- 123800000-124000000 rw- 124000000-124800000 rw- 124800000-125000000 rw- 125000000-125800000 rw- 125800000-126000000 rw- 126000000-126800000 rw- 126800000-127000000 rw- 127000000-127800000 rw- 127800000-128000000 rw- 128000000-128800000 rw- 128800000-129000000 rw- 129000000-129800000 rw- 129800000-12a000000 rw- 12a000000-12a800000 rw- 12a800000-12b000000 rw- 12b000000-12b800000 rw- 12b800000-12c000000 rw- 12c000000-12c800000 rw- 12c800000-12d000000 rw- 12d000000-12d800000 rw- 12d800000-12e000000 rw- 12e000000-12e800000 rw- 12e800000-12f000000 rw- 12f000000-12f800000 rw- 12f800000-130000000 rw- 136e00000-136f00000 rw- 136f00000-137000000 rw- 137000000-137800000 rw- 137800000-138000000 rw- 138000000-138800000 rw- 138800000-139000000 rw- 139000000-139800000 rw- 139800000-13a000000 rw- 13a000000-13a800000 rw- 13a800000-13b000000 rw- 13b000000-13b800000 rw- 13b800000-13c000000 rw- 13c000000-13c800000 rw- 13c800000-13d000000 rw- 13d000000-13d800000 rw- 13d800000-13e000000 rw- 13e000000-13e800000 rw- 13e800000-13f000000 rw- 13f000000-13f800000 rw- 13f800000-140000000 rw- 146e00000-146f00000 rw- 146f00000-147000000 rw- 147000000-147800000 rw- 147800000-147900000 rw- 147900000-147a00000 rw- 148000000-148800000 rw- 148800000-149000000 rw- 149000000-149800000 rw- 149800000-14a000000 rw- 14a000000-14a800000 rw- 14a800000-14b000000 rw- 14b000000-14b800000 rw- 14b800000-14c000000 rw- 14c000000-14c800000 rw- 14c800000-14d000000 rw- 14d000000-14d800000 rw- 14d800000-14e000000 rw- 14e000000-14e800000 rw- 14e800000-14f000000 rw- 14f000000-14f800000 rw- 14f800000-150000000 rw- 150000000-150800000 rw- 150800000-151000000 rw- 156e00000-156f00000 rw- 156f00000-157000000 rw- 157000000-157800000 rw- 157800000-158000000 rw- 158000000-158800000 rw- 158800000-159000000 rw- 159000000-159800000 rw- 159800000-15a000000 rw- 15a000000-15a800000 rw- 15a800000-15b000000 rw- 15b000000-15b800000 rw- 15b800000-15c000000 rw- 15c000000-15c800000 rw- 15c800000-15d000000 rw- 15d000000-15d800000 rw- 15d800000-15e000000 rw- 15e000000-15e800000 rw- 15e800000-15f000000 rw- 15f000000-15f800000 rw- 15f800000-160000000 rw- 160000000-162000000 rw- 162000000-162004000 rw- 162800000-163000000 rw- 16b4b0000-16ecb4000 --- 16ecb4000-16f4b0000 rw- 16f4b0000-16f4b4000 --- 16f4b4000-16f53c000 rw- 180000000-1ec000000 r-- 1ec000000-1edf08000 r-- 1edf08000-1ee000000 rw- 1ee000000-1f0000000 rw- 1f0000000-1f05c8000 r-- 1f05c8000-1f2000000 rw- 1f2000000-230000000 r-- 230000000-23136c000 rw- 23136c000-232000000 r-- 232000000-280000000 r-- fc0000000-1000000000 --- 1000000000-7000000000 --- 600000000000-600008000000 rw- 600008000000-600010000000 rw- 600010000000-600018000000 rw- 600018000000-600020000000 rw- [IMPORTANT] Don't forget to include the Crash Report log file under DiagnosticReports directory in bug reports. To see why this extension failed to compile, please check the mkmf.log which can be found here: /Users/pbulk/build/devel/ruby-glib2/work/.inst/opt/pkg/lib/ruby/gems/2.7.0/extensions/aarch64-darwin-22/2.7.0/glib2-4.1.4/mkmf.log extconf failed, uncaught signal 6 Gem files will remain installed in /Users/pbulk/build/devel/ruby-glib2/work/.inst/opt/pkg/lib/ruby/gems/2.7.0/gems/glib2-4.1.4 for inspection. Results logged to /Users/pbulk/build/devel/ruby-glib2/work/.inst/opt/pkg/lib/ruby/gems/2.7.0/extensions/aarch64-darwin-22/2.7.0/glib2-4.1.4/gem_make.out *** Error code 1 Stop. bmake[1]: stopped in /Volumes/data/jenkins/workspace/pkgsrc-macos11-trunk-arm64/devel/ruby-glib2 *** Error code 1 Stop. bmake: stopped in /Volumes/data/jenkins/workspace/pkgsrc-macos11-trunk-arm64/devel/ruby-glib2