Re: [gtk-osx-users] Add ncurses librairy.

[John Ralls <jralls ceridwen us>]

> On Aug 17, 2019, at 9:58 AM, Pascal <p p14 orange fr> wrote:
>
> > Le 15 août 2019 à 23:52, John Ralls <jralls ceridwen us> a écrit :
> >
> > > On Aug 15, 2019, at 1:02 PM, Pascal <p p14 orange fr> wrote:
> > >
> > > Hello,
> > >
> > > I've got linker errors with my program which use ncurses.
> > > Previously it link against librairies in /usr/lib from Apple developper tools.
> > > But since Command Line Tools (HS 10.13), I got:
> > > Undefined symbols for architecture x86_64:
> > > "_current_item", referenced from:
> > >   _terminal_interface__curses__menus__current in terminal_interface-curses-menus.o
> > > "_free_item", referenced from:
> > >   _terminal_interface__curses__menus__delete in terminal_interface-curses-menus.o
> > >   terminal_interface__curses__menus(float, long double,...)(...) in terminal_interface-curses-menus.o
> > > "_free_menu", referenced from:
> > >   _terminal_interface__curses__menus__delete__2 in terminal_interface-curses-menus.o
> > > <...>
> > > "_top_row", referenced from:
> > >   _terminal_interface__curses__menus__top_row in terminal_interface-curses-menus.o
> > >  (maybe you meant: _terminal_interface__curses__menus__top_row, 
> > > _terminal_interface__curses__menus__set_top_row )
> > > "_unpost_menu", referenced from:
> > >   _terminal_interface__curses__menus__post in terminal_interface-curses-menus.o
> > > ld: symbol(s) not found for architecture x86_64
> > > collect2: error: ld returned 1 exit status
> > >
> > > Like the lib menu is not seen for x86_64, but it seems to be ok:
> > >
> > > $ otool -vf /usr/lib/libmenu.dylib
> > > Fat headers
> > > fat_magic FAT_MAGIC
> > > nfat_arch 2
> > > architecture x86_64
> > > cputype CPU_TYPE_X86_64
> > > cpusubtype CPU_SUBTYPE_X86_64_ALL
> > > capabilities 0x0
> > > offset 4096
> > > size 36064
> > > align 2^12 (4096)
> > > architecture i386
> > > cputype CPU_TYPE_I386
> > > cpusubtype CPU_SUBTYPE_I386_ALL
> > > capabilities 0x0
> > > offset 40960
> > > size 35488
> > > align 2^12 (4096)
> > >
> > > It's really a pity that some libraries coming from Apple fail :-(
> > > I was advised to build the library from source https://invisible-island.net/ncurses.
> > > Though it is available with other building systems, I aim to get it via gtk-osx.
> > > What is the best way to add it?
> >
> > Pascal,
> >
> > It's strange enough that something is still using curses in 2019, but stranger still that it uses curses 
> > and Gtk.
>
> Yes it looks strange ;-)
> I build a set of Ada libraries based on GTK, ncurses and many others:
> https://hermes.gwu.edu/cgi-bin/wa?A2=ind1809&L=GNAT-OSX&P=68
>
> > Anyway, the direct answer to your question is to just add it to your local module set just like any other 
> > library that you need.
>
> I've added ncurses in a moduleset:
>  <repository type="tarball" name="ftp.invisible-island.net"
>              href="ftp://ftp.invisible-island.net/"/>
> <autotools id="ncurses"
>            autogenargs="--enable-pc-files --without-tests">
>    <branch repo="ftp.invisible-island.net"
>            module="ncurses/ncurses.tar.gz"
>            version="6.1"
>            checkoutdir="ncurses-6.1"/>
>  </autotools>
>
> But I need the Ada compiler to be on PATH, I've added it to my PATH but when I do jhbuild it isn't present 
> anymore!
> How to transfert the Ada compiler path to jhbuild?
>
> > But first make sure that the symbols really are missing, they're present in 10.14:
> > $ Manjusri:/Users/john> nm /usr/lib/libmenu.5.4.dylib | grep _unpost_menu
> > 000000000000379a T _unpost_menu
> > $ Manjusri:/Users/john> nm /usr/lib/libmenu.5.4.dylib | grep _current_item
> > 00000000000024cd T _current_item
> > 000000000000240d T _set_current_item
> > $ Manjusri:/Users/john> nm /usr/lib/libmenu.5.4.dylib | grep _free_item
> > 000000000000269c T _free_item
> > $ Manjusri:/Users/john> nm /usr/lib/libmenu.5.4.dylib | grep _free_menu
> > 0000000000002c2a T _free_menu
> > $ Manjusri:/Users/john> nm /usr/lib/libmenu.5.4.dylib | grep _top_row
> > 0000000000002913 T _set_top_row
> > 00000000000029da T _top_row
> >
> > It's libncurses 5.4 released in 2004, meaning that Apple has probably not changed it since MacOS X 10.2 or 
> > so. ISTM it's more likely that you've got the wrong link order than that libmenu is missing all of its 
> > symbols.
>
> So mine does:
> $ nm /usr/lib/libmenu.5.4.dylib | grep _current_item
> 00000000000023bd T _current_item
> 00000000000022ee T _set_current_item
>
> Symbols are present but not seen for x86_64.
> Well, I took libmenu.5.4.dylib from an old Snow Leopard macOS with linking success.
> The difference between both is that the older one has PPC symbols.
> Maybe Apple has stripped out PPC symbols and make it wrong I guess.

No PPC from 10.7 and no i386 from 10.13, so if the symbols are there they're x86_64. Your link order is 
screwed up, just fix that.

As for the path, jhbuildrc exposes addpath and prependpath, see 
https://developer.gnome.org/jhbuild/unstable/config-reference.html.en. 

Regards,
John Ralls