vapigen segfault when building libchamplain

[Laurent Bigonville]

Hi,

When building libchamplain 0.12 either on PPA builder or on my machine, vapigen segfaults:

( /usr/bin/vapigen --library champlain-0.12 --pkg clutter-1.0 --pkg atk --pkg pangocairo ./Champlain-0.12.gir )
/bin/bash: line 1: 31071 Segmentation fault ( /usr/bin/vapigen --library champlain-0.12 --pkg clutter-1.0 --pkg atk --pkg pangocairo ./Champlain-0.12.gir )
make[4]: *** [champlain-0.12.vapi] Error 139

When building in a debian sid chroot, it builds perfectly

https://launchpadlibrarian.net/82346045/buildlog_ubuntu-oneiric-amd64.libchamplain_0.12.0-1%7Eoneiric1_FAILEDTOBUILD.txt.gz

[Colin Watson (cjwatson)]

(gdb) r
Starting program: /tmp/buildd/vala-0.12.1/vapigen/.libs/lt-vapigen --library champlain-0.12 --pkg clutter-1.0 --pkg atk --pkg pangocairo ./Champlain-0.12.gir
[Thread debugging using libthread_db enabled]

Program received signal SIGSEGV, Segmentation fault.
vala_symbol_get_lower_case_cprefix (self=0x0) at valasymbol.c:1115
1115 return VALA_SYMBOL_GET_CLASS (self)->get_lower_case_cprefix (self);
(gdb) bt
#0 vala_symbol_get_lower_case_cprefix (self=0x0) at valasymbol.c:1115
#1 0x003029f1 in vala_interface_real_get_lower_case_cname (base=0x8bfba28, infix=0x3b144c "") at valainterface.c:1501
#2 0x0036b217 in vala_symbol_get_lower_case_cname (self=0x8bfba28, infix=0x0) at valasymbol.c:1094
#3 0x003017ee in vala_interface_real_get_lower_case_cprefix (base=0x8bfba28) at valainterface.c:1522
#4 0x0036b22f in vala_symbol_get_lower_case_cprefix (self=0x8bfba28) at valasymbol.c:1115
#5 0x00311016 in vala_method_real_get_default_cname (self=0x8dcdd08) at valamethod.c:2231
#6 vala_method_real_get_default_cname (self=0x8dcdd08) at valamethod.c:2177
#7 0x003114d2 in vala_method_get_default_cname (self=0x8dcdd08) at valamethod.c:2245
#8 0x00311568 in vala_method_get_cname (self=0x8dcdd08) at valamethod.c:2082
#9 0x002c21ff in vala_gir_parser_handle_async_methods (self=<optimized out>, type_symbol=0x8bfba28) at valagirparser.c:7396
#10 0x002ceba9 in vala_gir_parser_parse_interface (self=0x8c3d090) at valagirparser.c:7288
#11 vala_gir_parser_parse_namespace (self=<optimized out>) at valagirparser.c:5342
#12 vala_gir_parser_parse_repository (self=<optimized out>) at valagirparser.c:4854
#13 0x002d114f in vala_gir_parser_parse_file (self=0x8c3d090, source_file=0x8c62d48) at valagirparser.c:2805
#14 0x002d1bbe in vala_gir_parser_real_visit_source_file (base=0x8c3d090, source_file=0x8c62d48) at valagirparser.c:2668
#15 0x00293247 in vala_code_visitor_visit_source_file (self=0x8c3d090, source_file=0x8c62d48) at valacodevisitor.c:1329
#16 0x0035f91b in vala_source_file_accept (self=0x8c62d48, visitor=0x8c3d090) at valasourcefile.c:402
#17 0x0028e63d in vala_code_context_accept (self=0x807b010, visitor=0x8c3d090) at valacodecontext.c:1119
#18 0x002cf44c in vala_gir_parser_parse (self=0x8c3d090, context=0x807b010) at valagirparser.c:2565
#19 0x0804eece in vala_vapi_gen_run (self=<optimized out>) at valavapigen.c:459
#20 vala_vapi_gen_main (args_length1=1, args=0xbffff5b4) at valavapigen.c:641
#21 main (argc=10, argv=0xbffff5b4) at valavapigen.c:650

[Colin Watson (cjwatson)]

I suspect that 51b418e70493b5780b9c21f7d21788f69bedf761 is involved in fixing this. To my untutored eye, that is not obviously safe to backport.

libchamplain builds fine with valac-0.14, so I'm going to switch over its build-dependency. That's the default version of valac anyway.

[Launchpad Janitor (janitor)]

This bug was fixed in the package libchamplain - 0.12.0-1ubuntu1

---------------
libchamplain (0.12.0-1ubuntu1) precise; urgency=low

  * Build-depend on valac (>= 0.14.0) rather than valac-0.12, since Vala
    0.12 and current Gio-2.0.gir don't seem to get on well (LP: #871647).
 -- Colin Watson <email address hidden> Mon, 07 Nov 2011 14:18:29 +0000