Comment 4 for bug 1546219

AFAIU mostly a downstream (packaging) issue: no fonts at all available via fontconfig for Inkscape due to broken installation of fontconfig (missing config file for fontconfig).

Can be reproduced in by pointing fontconfig intentionally to a non-existent config file using the environment variable $FONTCONFIG_FILE (AFAIU not specific to homebrew, nor to building inkscape on OS X (with or without X11): I recall seen similar reports e.g. from archlinux users on irc).

Backtrace with latest trunk (r14918) attached:

Fontconfig error: Cannot load default config file

Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_INVALID_ADDRESS at address: 0x0000000000000098
0x00000001006f972d in font_factory::Face (this=0x116bf5470, descr=0x1137fbd80, canFail=false) at FontFactory.cpp:682
682 PangoOTInfo* info = pango_ot_info_get( res->theFace );