Macports now has gs 9.50 so no need to build separately

[PaulWessel]

We can now use the macports version of gs in our bundle building. @seisman, I built a test gmt-6.0.1-darwin-x86_64.dmg in the usual ftp dir if you want to check. This gs uses libgs.dylib and a symbolic link gs to gsc which is the ghostcsript application in macports. Worked for me, and a basic plot worked.

[seisman]

gs doesn't work:

GPL Ghostscript 9.50: Can't find initialization file gs_init.ps.

The search path of the macports gs is:

   /usr/local/Cellar/ghostscript/9.50/share/ghostscript/9.50/Resource/Init :
   /usr/local/Cellar/ghostscript/9.50/share/ghostscript/9.50/lib :
   /usr/local/Cellar/ghostscript/9.50/share/ghostscript/9.50/Resource/Font :
   /usr/local/Cellar/ghostscript/9.50/share/ghostscript/fonts :
   /usr/local/Cellar/ghostscript/9.50/share/fonts/default/ghostscript :
   /usr/local/Cellar/ghostscript/9.50/share/fonts/default/Type1 :
   /usr/local/Cellar/ghostscript/9.50/share/fonts/default/TrueType :
   /usr/lib/DPS/outline/base : /usr/openwin/lib/X11/fonts/Type1 :
   /usr/openwin/lib/X11/fonts/TrueType

while the gs search path in the 6.0.0 bundle (your own build) is:

Search path:
   %rom%Resource/Init/ : %rom%lib/ :
   /opt/share/ghostscript/9.50/Resource/Init :
   /opt/share/ghostscript/9.50/lib :
   /opt/share/ghostscript/9.50/Resource/Font :
   /opt/share/ghostscript/fonts : /opt/share/fonts/default/ghostscript :
   /opt/share/fonts/default/Type1 : /opt/share/fonts/default/TrueType :
   /usr/lib/DPS/outline/base : /usr/openwin/lib/X11/fonts/Type1 :
   /usr/openwin/lib/X11/fonts/TrueType : /usr/share/cups/fonts

The macports gs doesn't search %rom%Resource/Init and %rom%lib because macports uses the option --disable-compile-inits when building.

[PaulWessel]

OK, maybe now you need to set GS_LIB=.....

[seisman]

No luck. gs needs more parameters than we thought.

[PaulWessel]

Stoopid stuff. So per man page:

1. the directories specified by the -I switches in the command line (see below), if any;
2. the directories specified by the GS_LIB environment variable, if any;
3. the directories specified by the GS_LIB_DEFAULT macro in the Ghostscript makefile when the executable was built. When gs is built on Unix, GS_LIB_DEFAULT is usually "/usr/local/share/ghostscript/#.##:/usr/local/share/ghostscript/fonts" where "#.##" represents the Ghostscript version number.

But GS_LIB is supposed to point to initialization files and fonts. Also GS_FONTPATH...

[PaulWessel]

What did you set GS_LIB to? /Applicationsgmt.../share/ghostscript/9.50 ? Maybe add GS_FONTPATH to .../fonts ?

[seisman]

Followed your suggestion and still doesn't work.

Running gs gives:

GPL Ghostscript 9.50: Can't find initialization file gs_init.ps.

Setting GS_LIB:

export GS_LIB=/Applications/GMT-6.0.1.app/Contents/Resources/share/ghostscript/9.50/Resource/Init

Then gs reports something wrong with GenericResourceDir.

GPL Ghostscript 9.50 (2019-10-15)
Copyright (C) 2019 Artifex Software, Inc.  All rights reserved.
This software is supplied under the GNU AGPLv3 and comes with NO WARRANTY:
see the file COPYING for details.

*** Warning: GenericResourceDir doesn't point to a valid resource directory.
               the -sGenericResourceDir=... option can be used to set this.

  ./base/gsicc_manage.c:1254: gsicc_open_search(): Could not find default_gray.icc
| ./base/gsicc_manage.c:2272: gsicc_init_iccmanager(): cannot find default icc profile
**** Unable to open the initial device, quitting.

Running gs -sGenericResourceDir=/Applications/GMT-6.0.1.app/Contents/Resources/share/ghostscript/9.50/Resource/ gives:

GPL Ghostscript 9.50 (2019-10-15)
Copyright (C) 2019 Artifex Software, Inc.  All rights reserved.
This software is supplied under the GNU AGPLv3 and comes with NO WARRANTY:
see the file COPYING for details.
  ./base/gsicc_manage.c:1254: gsicc_open_search(): Could not find default_gray.icc
| ./base/gsicc_manage.c:2272: gsicc_init_iccmanager(): cannot find default icc profile
**** Unable to open the initial device, quitting.

[PaulWessel]

Looks like the macports gs installation is not relocatable.

[seisman]

Yes, the homebrew gs is also not relocatable.

[PaulWessel]

OK, so we will stick with our own compiled version and delete this PR.