[chirp_devel] Building on OS X and tracking down a bug

[Nicholas Vahalik]

Greetings all,

I’ve found what _appears_ to be a bug the latest daily build of Chirp. I can reproduce it by loading memory save for an Icom 880 that had some channels removed from it and then trying to click over to the Banks tab. The banks tab is empty but then the application crashes: 

Exception Type:        EXC_BAD_ACCESS (SIGSEGV)
Exception Codes:       KERN_INVALID_ADDRESS at 0x0000000000000000

VM Regions Near 0:
--> 
    __TEXT                 0000000000001000-0000000000002000 [    4K] r-x/rwx SM=COW  /opt/kk7ds/*/Python.framework/Versions/2.7/Resources/Python.app/Contents/MacOS/Python

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   pango-basic-atsui.so          	0x0b14adb1 basic_engine_shape + 561
1   libpango-1.0.0.dylib          	0x05637315 pango_shape + 85
2   libpango-1.0.0.dylib          	0x05628b5e shape_run + 142
3   libpango-1.0.0.dylib          	0x0562bf31 process_item + 225
4   libpango-1.0.0.dylib          	0x0562c843 pango_layout_check_lines + 1331
5   libpango-1.0.0.dylib          	0x0562d90c pango_layout_get_extents_internal + 156
6   libpango-1.0.0.dylib          	0x0562ea03 pango_layout_get_pixel_extents + 131
7   libgtk-quartz-2.0.0.dylib     	0x04fedb9c get_size + 108
8   libgtk-quartz-2.0.0.dylib     	0x051b26ac gtk_tree_view_column_cell_get_size + 444
9   libgtk-quartz-2.0.0.dylib     	0x051a92f2 validate_row + 610
10  libgtk-quartz-2.0.0.dylib     	0x051a9d96 do_validate_rows + 278
11  libgtk-quartz-2.0.0.dylib     	0x051aa172 gtk_tree_view_size_request + 18
12  libgobject-2.0.0.dylib        	0x04ba3a39 g_closure_invoke + 313
13  libgobject-2.0.0.dylib        	0x04bb62ee signal_emit_unlocked_R + 846
14  libgobject-2.0.0.dylib        	0x04bb7ecb g_signal_emit_valist + 1915
15  libgobject-2.0.0.dylib        	0x04bbc2ad g_signal_emit_by_name + 189
16  libgtk-quartz-2.0.0.dylib     	0x0510a911 do_size_request + 65
17  libgtk-quartz-2.0.0.dylib     	0x0510ad57 _gtk_size_group_compute_requisition + 103
18  libgtk-quartz-2.0.0.dylib     	0x051ab0d4 validate_visible_area + 2260
19  libgtk-quartz-2.0.0.dylib     	0x051ab558 do_presize_handler + 56
20  libgtk-quartz-2.0.0.dylib     	0x051ab5ee presize_handler_callback + 14
21  libgdk-quartz-2.0.0.dylib     	0x053d526b gdk_threads_dispatch + 91
22  libglib-2.0.0.dylib           	0x04c20b6b g_main_context_dispatch + 523
23  libglib-2.0.0.dylib           	0x04c258ab g_main_context_iterate + 1131
24  libglib-2.0.0.dylib           	0x04c25ca7 g_main_loop_run + 519
25  libgtk-quartz-2.0.0.dylib     	0x05091291 gtk_main + 177
26  _gtk.so                       	0x04e797bd _wrap_gtk_main + 253
27  org.python.python             	0x000cad83 PyEval_EvalFrameEx + 20403
28  org.python.python             	0x000ccf9a PyEval_EvalCodeEx + 2042
29  org.python.python             	0x000cd127 PyEval_EvalCode + 87
30  org.python.python             	0x000f15a8 PyRun_FileExFlags + 168
31  org.python.python             	0x000f24d3 PyRun_SimpleFileExFlags + 867
32  org.python.python             	0x0010b0b3 Py_Main + 3171
33  org.python.python             	0x00001fb6 0x1000 + 4022

Anyway, I downloaded the latest source through Mercurial, did a brew install pytgtk and ran ./chirpw… and now the “bug” won’t show up. So I’m wondering if maybe there is a problem with my installed runtime vs. the development libraries?

I can’t find any instructions on how to build for OS X. I tried running python setup.py build, but I get this message:

nvahalik:08:51 PM:~/chirp.hg$ python setup.py build
running build
cp: /opt/local/etc/pango/pangox.aliases: No such file or directory

So maybe there is something else I need to install? All my Python work has been wxPython so far…

73s

Nick Vahalik
KF5ZQE