Arch Linux

Description:

Please add optional dependencies on ghostscript (for rendering .ps files) and imagemagick (to convert between image formats).
More info here: http://www.texmacs.org/tmweb/download/packaging.en.html

If not installed, rendering .ps files will fail silently (warning shown only when texmacs is started from a terminal).
TeXmacs also tries running `convert`, with no error whatsoever when it fails.

* package version(s)
1.0.7.16-2
* config and/or log files etc.


Steps to reproduce:
[without ghostscript installed, backup or delete ${HOME}/.TeXmacs]
$ texmacs
[...]
TeXmacs] warning: cannot render /usr/share/TeXmacs/misc/images/tm_gnu1.ps
TeXmacs] warning: cannot render /usr/share/TeXmacs/misc/images/tm_gnu2.ps

[without imagemagick installed]
$ strace -o strace.out -f texmacs; grep convert strace.out
[...]
3139 stat("/usr/bin/convert", 0x7fff5e7c1830) = -1 ENOENT (No such file or directory)
3139 stat("/bin/convert", 0x7fff5e7c1830) = -1 ENOENT (No such file or directory)
3139 stat("/usr/local/sbin/convert", 0x7fff5e7c1830) = -1 ENOENT (No such file or directory)
3139 stat("/usr/sbin/convert", 0x7fff5e7c1830) = -1 ENOENT (No such file or directory)
3139 stat("/sbin/convert", 0x7fff5e7c1830) = -1 ENOENT (No such file or directory)
3139 stat("/usr/bin/core_perl/convert", 0x7fff5e7c1830) = -1 ENOENT (No such file or directory)
3139 stat("/usr/lib/qt4/bin/convert", 0x7fff5e7c1830) = -1 ENOENT (No such file or directory)
3139 write(2, "which: no convert in (/usr/lib/T"..., 156) = 156
[...]