Myself and some others are looking at replacing autotools in Tilix with meson for the various Linux distros to use when building and packaging the binary. However we are running into an issue with meson around the use of the "-L--export-dynamic" flag.

When compiling with meson using LDC and that flag the following errors are generated:

[66/66] Linking target tilix.
FAILED: tilix
ldc  -of tilix 'tilix@exe/source_secretc_secrettypes.d.o' 'tilix@exe/source_secretc_secret.d.o' 'tilix@exe/source_app.d.o' 'tilix@exe/source_x11_X.d.o' 'tilix@exe/source_x11_Xlib.d.o' 'tilix@exe/source_secret_SchemaAttribute.d.o' 'tilix@exe/source_secret_Item.d.o' 'tilix@exe/source_secret_Schema.d.o' 'tilix@exe/source_secret_Service.d.o' 'tilix@exe/source_secret_Prompt.d.o' 'tilix@exe/source_secret_Collection.d.o' 'tilix@exe/source_secret_Secret.d.o' 'tilix@exe/source_secret_Value.d.o' 'tilix@exe/source_gx_util_array.d.o' 'tilix@exe/source_gx_util_path.d.o' 'tilix@exe/source_gx_util_string.d.o' 'tilix@exe/source_gx_gtk_cairo.d.o' 'tilix@exe/source_gx_gtk_clipboard.d.o' 'tilix@exe/source_gx_gtk_x11.d.o' 'tilix@exe/source_gx_gtk_resource.d.o' 'tilix@exe/source_gx_gtk_vte.d.o' 'tilix@exe/source_gx_gtk_actions.d.o' 'tilix@exe/source_gx_gtk_threads.d.o' 'tilix@exe/source_gx_gtk_dialog.d.o' 'tilix@exe/source_gx_gtk_settings.d.o' 'tilix@exe/source_gx_gtk_util.d.o' 'tilix@exe/source_gx_gtk_color.d.o' 'tilix@exe/source_gx_tilix_appwindow.d.o' 'tilix@exe/source_gx_tilix_terminal_advpaste.d.o' 'tilix@exe/source_gx_tilix_terminal_search.d.o' 'tilix@exe/source_gx_tilix_terminal_regex.d.o' 'tilix@exe/source_gx_tilix_terminal_actions.d.o' 'tilix@exe/source_gx_tilix_terminal_activeprocess.d.o' 'tilix@exe/source_gx_tilix_terminal_terminal.d.o' 'tilix@exe/source_gx_tilix_terminal_layout.d.o' 'tilix@exe/source_gx_tilix_terminal_password.d.o' 'tilix@exe/source_gx_tilix_terminal_util.d.o' 'tilix@exe/source_gx_tilix_terminal_exvte.d.o' 'tilix@exe/source_gx_tilix_terminal_monitor.d.o' 'tilix@exe/source_gx_tilix_sidebar.d.o' 'tilix@exe/source_gx_tilix_customtitle.d.o' 'tilix@exe/source_gx_tilix_prefeditor_bookmarkeditor.d.o' 'tilix@exe/source_gx_tilix_prefeditor_profileeditor.d.o' 'tilix@exe/source_gx_tilix_prefeditor_common.d.o' 'tilix@exe/source_gx_tilix_prefeditor_prefdialog.d.o' 'tilix@exe/source_gx_tilix_prefeditor_titleeditor.d.o' 'tilix@exe/source_gx_tilix_prefeditor_advdialog.d.o' 'tilix@exe/source_gx_tilix_preferences.d.o' 'tilix@exe/source_gx_tilix_application.d.o' 'tilix@exe/source_gx_tilix_shortcuts.d.o' 'tilix@exe/source_gx_tilix_colorschemes.d.o' 'tilix@exe/source_gx_tilix_session.d.o' 'tilix@exe/source_gx_tilix_constants.d.o' 'tilix@exe/source_gx_tilix_common.d.o' 'tilix@exe/source_gx_tilix_cmdparams.d.o' 'tilix@exe/source_gx_tilix_encoding.d.o' 'tilix@exe/source_gx_tilix_closedialog.d.o' 'tilix@exe/source_gx_tilix_bookmark_manager.d.o' 'tilix@exe/source_gx_tilix_bookmark_bmchooser.d.o' 'tilix@exe/source_gx_tilix_bookmark_bmeditor.d.o' 'tilix@exe/source_gx_tilix_bookmark_bmtreeview.d.o' 'tilix@exe/source_gx_i18n_l10n.d.o' -L-L/usr/lib// -L-lgtkd-3 -L-ldl -L-lvted-3 -L-L/usr/lib// -L-lgtkd-3 -L-ldl -L-lX11
/usr/bin/ld: tilix@exe/source_gx_tilix_appwindow.d.o: in function `_D2gx5tilix6common__T12GenericEventTCQBjQBj7session7SessionZQBn11__xopEqualsFKxSQDaQDaQCx__TQCtTQCiZQDbKxQBaZb':
/tmp/tilix/build/../source/gx/tilix/common.d:28: undefined reference to `_D6object__T8__equalsTxDFC2gx5tilix7session7SessionZvTxQBgZQBvFNaNbNiNfAxQByQfZb'
/usr/bin/ld: tilix@exe/source_gx_tilix_terminal_terminal.d.o: in function `_D2gx5tilix6common__T12GenericEventTEQBjQBjQBg10ActionTypeTCQCgQCgQCd__T16CumulativeResultTbZQvZQCx11__xopEqualsFKxSQEkQEkQEh__TQEdTQDsTQCzZQEpKxQBeZb':
/tmp/tilix/build/../source/gx/tilix/common.d:28: undefined reference to `_D6object__T8__equalsTxDFE2gx5tilix6common10ActionTypeCQBdQBdQBa__T16CumulativeResultTbZQvZvTxQCtZQDiFNaNbNiNfAxQDlQfZb'
/usr/bin/ld: tilix@exe/source_gx_tilix_terminal_terminal.d.o: in function `_D2gx5tilix6common__T12GenericEventTAyaTQeTQhTQkZQBc11__xopEqualsFKxSQCpQCpQCm__TQCiTQBxTQCbTQCfTQCjZQDcKxQBmZb':
/tmp/tilix/build/../source/gx/tilix/common.d:28: undefined reference to `_D6object__T8__equalsTxDFAyaQdQfQhZvTxQpZQBdFNaNbNiNfAxQBgQfZb'
collect2: error: ld returned 1 exit status
Error: /usr/bin/gcc failed with status: 1
ninja: build stopped: subcommand failed.


Taking out the export-dynamic flag it all works fine. Unfortunately this flag is the default for the DMD compiler (which apparently exhibits the same behavior) as well as LDC on some distros like Arch. That flag looks pretty innocuous so I'm not sure why it is causing an issue.

I could use some help from someone more experienced with the compiler to help understand what is going on and if there is an issue with tilix, meson or the compiler itself. A full discussion of the issue can be viewed here:

https://github.com/gnunn1/tilix/issues/1502

For anyone that wants to try to reproduce it, you can clone this repo and switch to the meson branch:

https://github.com/bilelmoussaoui/tilix

On Mon, 2018-09-03 at 13:19 +0000, Gerald via Digitalmars-d-learn wrote:
> Myself and some others are looking at replacing autotools in Tilix with meson for the various Linux distros to use when building and packaging the binary. However we are running into an issue with meson around the use of the "-L--export-dynamic" flag.
> 

I have been using -L-Wl,--export-dynamic to get C symbols exported at
runtime with ldc2, I am nt sure if this datum helps any.

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