Fails to build with ruby1.9.3-p327 on EL6.5

[jhoblitt]

This is on EL6.5 with the distro provided yajl packages. Note the demonstration at the bottom of preformatted text block that shows the symbols are present in the yajl .so.

[jhoblitt@ctrl ~]$ rpm -qa | grep yajl
yajl-devel-1.0.7-3.el6.x86_64
yajl-1.0.7-3.el6.x86_64
[jhoblitt@ctrl ~]$ ruby --version
ruby 1.9.3p327 (2012-11-10 revision 37606) [x86_64-linux]
[jhoblitt@ctrl ~]$ gem install heap_dump
Building native extensions.  This could take a while...
ERROR:  Error installing heap_dump:
    ERROR: Failed to build gem native extension.

    /home/jhoblitt/.rvm/rubies/ruby-1.9.3-p327/bin/ruby extconf.rb
Using ruby source from /home/jhoblitt/.rvm/src/ruby-1.9.3-p327
fatal: Not a git repository (or any of the parent directories): .git
fatal: Not a git repository (or any of the parent directories): .git
fatal: Not a git repository (or any of the parent directories): .git
checking for api/yajl_gen.h in /home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/yajl-ruby-1.2.0/ext/yajl... yes
checking for gc_internal.h in ./specific/ruby-1.9.3... yes
checking for gc_internal.h... yes
checking for vm_core.h... yes
checking for iseq.h... yes
checking for node.h... yes
checking for method.h... yes
checking for constant.h... yes
checking for internal.h... yes
checking for gc.h... yes
checking for rb_iseq_t.filename in vm_core.h... yes
checking for rb_binding_t.filename in vm_core.h... yes
checking for rb_control_frame_t.bp in vm_core.h... yes
checking for rb_thread_t.thrown_errinfo in vm_core.h... yes
checking for rb_event_hook_t.data in vm_core.h... yes
checking for rb_iseq_t.location in vm_core.h... no
checking for rb_block_t.klass in vm_core.h... no
checking for rb_block_t.lfp in vm_core.h... yes
creating Makefile

make  clean

make
compiling heap_dump.c
In file included from heap_dump.c:64:
./specific/ruby-1.9.3/internal_typed_data.h: In function ‘rb_get_class_tbl’:
./specific/ruby-1.9.3/internal_typed_data.h:63: warning: ISO C90 forbids mixed declarations and code
heap_dump.c: In function ‘heapdump_count_objects_return’:
heap_dump.c:1877: warning: ISO C90 forbids mixed declarations and code
linking shared-object heap_dump.so
heap_dump.o: In function `iterate_user_type_counts':
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1716: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1717: undefined reference to `yajl_gen_integer'
heap_dump.o: In function `dump_iseq':
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:572: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:572: undefined reference to `yajl_gen_integer'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:584: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:584: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:588: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:591: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:592: undefined reference to `yajl_gen_string'
heap_dump.o:/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:593: more undefined references to `yajl_gen_string' follow
heap_dump.o: In function `dump_iseq':
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:611: undefined reference to `yajl_gen_array_open'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:615: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:617: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:571: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:571: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:570: undefined reference to `yajl_gen_string'
heap_dump.o:/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:570: more undefined references to `yajl_gen_string' follow
heap_dump.o: In function `dump_iseq':
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:599: undefined reference to `yajl_gen_integer'
heap_dump.o: In function `dump_method_entry_i':
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:524: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:522: undefined reference to `yajl_gen_string'
heap_dump.o: In function `dump_block':
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:639: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:642: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:646: undefined reference to `yajl_gen_string'
heap_dump.o:/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:647: more undefined references to `yajl_gen_string' follow
heap_dump.o: In function `dump_block':
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:633: undefined reference to `yajl_gen_map_open'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:635: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:637: undefined reference to `yajl_gen_map_close'
heap_dump.o: In function `dump_backtrace':
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1267: undefined reference to `yajl_gen_map_open'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1269: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1269: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1270: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1270: undefined reference to `yajl_gen_integer'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1277: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1277: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1279: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1279: undefined reference to `yajl_gen_integer'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1281: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1282: undefined reference to `yajl_gen_array_open'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1285: undefined reference to `yajl_gen_array_close'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1287: undefined reference to `yajl_gen_map_close'
heap_dump.o: In function `vm_dump_each_thread_func':
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:693: undefined reference to `yajl_gen_string'
heap_dump.o: In function `dump_const_entry_i':
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:547: undefined reference to `yajl_gen_string'
heap_dump.o: In function `dump_iv_entry':
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:535: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:539: undefined reference to `yajl_gen_string'
heap_dump.o: In function `dump_keyvalue':
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:473: undefined reference to `yajl_gen_string'
heap_dump.o:/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:452: more undefined references to `yajl_gen_string' follow
heap_dump.o: In function `heapdump_count_objects_core':
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1732: undefined reference to `yajl_gen_map_open'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1776: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1776: undefined reference to `yajl_gen_integer'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1777: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1777: undefined reference to `yajl_gen_integer'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1778: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1779: undefined reference to `yajl_gen_map_open'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1782: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1783: undefined reference to `yajl_gen_integer'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1785: undefined reference to `yajl_gen_map_close'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1787: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1788: undefined reference to `yajl_gen_map_open'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1790: undefined reference to `yajl_gen_map_close'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1792: undefined reference to `yajl_gen_map_close'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1734: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1735: undefined reference to `yajl_gen_bool'
heap_dump.o: In function `rb_heapdump_count_objects':
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1810: undefined reference to `yajl_gen_alloc'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1815: undefined reference to `yajl_gen_get_buf'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1818: undefined reference to `yajl_gen_clear'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1819: undefined reference to `yajl_gen_free'
heap_dump.o: In function `heapdump_count_objects_ex':
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1839: undefined reference to `yajl_gen_alloc'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1850: undefined reference to `yajl_gen_get_buf'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1859: undefined reference to `yajl_gen_clear'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1860: undefined reference to `yajl_gen_free'
heap_dump.o: In function `dump_machine_context':
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1515: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1516: undefined reference to `yajl_gen_array_open'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1525: undefined reference to `yajl_gen_array_close'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1527: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1528: undefined reference to `yajl_gen_array_open'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1542: undefined reference to `yajl_gen_array_close'
heap_dump.o: In function `heapdump_dump':
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1634: undefined reference to `yajl_gen_alloc'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1635: undefined reference to `yajl_gen_array_open'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1638: undefined reference to `yajl_gen_map_open'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1639: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1639: undefined reference to `yajl_gen_string'
heap_dump.o: In function `flush_yajl':
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:112: undefined reference to `yajl_gen_get_buf'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:114: undefined reference to `yajl_gen_clear'
heap_dump.o: In function `heapdump_dump':
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1649: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1650: undefined reference to `yajl_gen_array_open'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1655: undefined reference to `yajl_gen_array_close'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1684: undefined reference to `yajl_gen_map_close'
heap_dump.o: In function `flush_yajl':
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:112: undefined reference to `yajl_gen_get_buf'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:114: undefined reference to `yajl_gen_clear'
heap_dump.o: In function `heapdump_dump':
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1692: undefined reference to `yajl_gen_array_close'
heap_dump.o: In function `flush_yajl':
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:112: undefined reference to `yajl_gen_get_buf'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:114: undefined reference to `yajl_gen_clear'
heap_dump.o: In function `heapdump_dump':
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1694: undefined reference to `yajl_gen_free'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1674: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1675: undefined reference to `yajl_gen_map_open'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1677: undefined reference to `yajl_gen_map_close'
heap_dump.o: In function `flush_yajl':
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:112: undefined reference to `yajl_gen_get_buf'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:114: undefined reference to `yajl_gen_clear'
heap_dump.o: In function `dump_thread':
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1381: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1382: undefined reference to `yajl_gen_array_open'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1384: undefined reference to `yajl_gen_array_close'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1385: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1386: undefined reference to `yajl_gen_array_open'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1433: undefined reference to `yajl_gen_array_close'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1436: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1437: undefined reference to `yajl_gen_array_open'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1439: undefined reference to `yajl_gen_array_close'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1442: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1445: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1446: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1447: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1450: undefined reference to `yajl_gen_string'
heap_dump.o:/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1451: more undefined references to `yajl_gen_string' follow
heap_dump.o: In function `dump_thread':
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1468: undefined reference to `yajl_gen_array_open'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1470: undefined reference to `yajl_gen_array_close'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1472: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1473: undefined reference to `yajl_gen_array_open'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1475: undefined reference to `yajl_gen_array_close'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1478: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1479: undefined reference to `yajl_gen_map_open'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1483: undefined reference to `yajl_gen_map_close'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1485: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1486: undefined reference to `yajl_gen_array_open'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1388: undefined reference to `yajl_gen_array_close'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1390: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1391: undefined reference to `yajl_gen_array_open'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1403: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1407: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1407: undefined reference to `yajl_gen_integer'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1412: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1413: undefined reference to `yajl_gen_map_open'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1418: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1423: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1427: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1427: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1428: undefined reference to `yajl_gen_map_close'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1431: undefined reference to `yajl_gen_map_close'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1394: undefined reference to `yajl_gen_map_open'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1396: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1397: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1399: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1403: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1443: undefined reference to `yajl_gen_string'
heap_dump.o:/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:913: more undefined references to `yajl_gen_string' follow
heap_dump.o: In function `dump_data_if_known':
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:913: undefined reference to `yajl_gen_double'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:775: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:777: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:778: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:740: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:732: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:733: undefined reference to `yajl_gen_map_open'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:761: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:762: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:763: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:763: undefined reference to `yajl_gen_integer'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:765: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:746: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:746: undefined reference to `yajl_gen_integer'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:747: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:748: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:752: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:753: undefined reference to `yajl_gen_map_open'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:830: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:832: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:833: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:834: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:835: undefined reference to `yajl_gen_string'
heap_dump.o:/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:836: more undefined references to `yajl_gen_string' follow
heap_dump.o: In function `dump_data_if_known':
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:841: undefined reference to `yajl_gen_array_open'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:788: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:789: undefined reference to `yajl_gen_array_open'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:791: undefined reference to `yajl_gen_array_close'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:793: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:793: undefined reference to `yajl_gen_integer'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:794: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:796: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:797: undefined reference to `yajl_gen_map_open'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:805: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:806: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:807: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:808: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:809: undefined reference to `yajl_gen_string'
heap_dump.o:/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:810: more undefined references to `yajl_gen_string' follow
heap_dump.o: In function `dump_data_if_known':
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:868: undefined reference to `yajl_gen_map_open'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:870: undefined reference to `yajl_gen_string'
heap_dump.o: In function `yg_fiber_type':
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:669: undefined reference to `yajl_gen_string'
heap_dump.o: In function `dump_data_if_known':
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:873: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:874: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:876: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:877: undefined reference to `yajl_gen_map_open'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:879: undefined reference to `yajl_gen_map_close'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:883: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:884: undefined reference to `yajl_gen_array_open'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:886: undefined reference to `yajl_gen_array_close'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:889: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:890: undefined reference to `yajl_gen_array_open'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:892: undefined reference to `yajl_gen_array_close'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:919: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:920: undefined reference to `yajl_gen_string'
heap_dump.o: In function `yg_fiber_type':
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:671: undefined reference to `yajl_gen_string'
heap_dump.o: In function `yg_fiber_status':
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:663: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:662: undefined reference to `yajl_gen_string'
heap_dump.o:/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:670: more undefined references to `yajl_gen_string' follow
heap_dump.o: In function `walk_live_object':
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:945: undefined reference to `yajl_gen_map_open'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:947: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:947: undefined reference to `yajl_gen_integer'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:948: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:948: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:955: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1060: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1060: undefined reference to `yajl_gen_string'
heap_dump.o:/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1068: more undefined references to `yajl_gen_string' follow
heap_dump.o: In function `walk_live_object':
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1069: undefined reference to `yajl_gen_map_open'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1074: undefined reference to `yajl_gen_map_close'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1087: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1088: undefined reference to `yajl_gen_map_open'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1090: undefined reference to `yajl_gen_map_close'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1094: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1162: undefined reference to `yajl_gen_map_close'
heap_dump.o: In function `flush_yajl':
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:112: undefined reference to `yajl_gen_get_buf'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:114: undefined reference to `yajl_gen_clear'
heap_dump.o: In function `walk_live_object':
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:966: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:967: undefined reference to `yajl_gen_map_open'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:969: undefined reference to `yajl_gen_map_close'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1128: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1129: undefined reference to `yajl_gen_array_open'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1132: undefined reference to `yajl_gen_array_close'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1048: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1049: undefined reference to `yajl_gen_map_open'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1051: undefined reference to `yajl_gen_map_close'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1117: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1117: undefined reference to `yajl_gen_double'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1117: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:983: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:983: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:988: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1003: undefined reference to `yajl_gen_string'
heap_dump.o:/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1149: more undefined references to `yajl_gen_string' follow
heap_dump.o: In function `walk_live_object':
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1151: undefined reference to `yajl_gen_integer'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:999: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:999: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1003: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1010: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1011: undefined reference to `yajl_gen_array_open'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1143: undefined reference to `yajl_gen_array_close'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:992: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:992: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1114: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1114: undefined reference to `yajl_gen_integer'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1139: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1140: undefined reference to `yajl_gen_array_open'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1142: undefined reference to `yajl_gen_integer'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1100: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1101: undefined reference to `yajl_gen_array_open'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1021: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1022: undefined reference to `yajl_gen_array_open'
heap_dump.o: In function `dump_node':
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:440: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:440: undefined reference to `yajl_gen_integer'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:441: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:441: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:443: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:444: undefined reference to `yajl_gen_array_open'
heap_dump.o: In function `dump_hash':
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:481: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:482: undefined reference to `yajl_gen_map_open'
heap_dump.o: In function `walk_live_object':
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1065: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1065: undefined reference to `yajl_gen_string'
heap_dump.o: In function `yg_funcaddr_real':
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:148: undefined reference to `yajl_gen_string'
heap_dump.o: In function `walk_live_object':
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1078: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1079: undefined reference to `yajl_gen_map_open'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1081: undefined reference to `yajl_gen_map_close'
heap_dump.o: In function `yg_funcaddr_real':
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:150: undefined reference to `yajl_gen_string'
heap_dump.o: In function `yg_id1':
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:194: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:199: undefined reference to `yajl_gen_integer'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:177: undefined reference to `yajl_gen_null'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:165: undefined reference to `yajl_gen_bool'
heap_dump.o: In function `dump_iseq':
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:620: undefined reference to `yajl_gen_array_close'
heap_dump.o: In function `dump_method_definition_as_value':
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:514: undefined reference to `yajl_gen_null'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:511: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:510: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:509: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:508: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:500: undefined reference to `yajl_gen_string'
heap_dump.o:/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:512: more undefined references to `yajl_gen_string' follow
heap_dump.o: In function `dump_thread':
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:1491: undefined reference to `yajl_gen_array_close'
heap_dump.o: In function `dump_data_if_known':
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:913: undefined reference to `yajl_gen_string'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:920: undefined reference to `yajl_gen_integer'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:755: undefined reference to `yajl_gen_map_close'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:755: undefined reference to `yajl_gen_map_close'
/home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33/ext/heap_dump/heap_dump.c:843: undefined reference to `yajl_gen_array_close'
/usr/bin/ld: heap_dump.so: hidden symbol `yajl_gen_null' isn't defined
/usr/bin/ld: final link failed: Nonrepresentable section on output
collect2: ld returned 1 exit status
make: *** [heap_dump.so] Error 1

make failed, exit code 2

Gem files will remain installed in /home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/gems/heap_dump-0.0.33 for inspection.
Results logged to /home/jhoblitt/.rvm/gems/ruby-1.9.3-p327/extensions/x86_64-linux/1.9.1/heap_dump-0.0.33/gem_make.out
[jhoblitt@ctrl ~]$ objdump -T /usr/lib64/libyajl.so | grep yajl_gen_string
0000003abf204bf0 g    DF .text  000000000000022f  Base        yajl_gen_string

[Sharpie]

This appears to be caused by brianmario/yajl-ruby@fa3c9a6 which set the visibility of libyajl symbols to hidden. This means that heap_dump can't compile against yajl-ruby 1.2.0 or newer.

[Vasfed]

@jhoblitt, heapdump uses yajl that is linked into yajl-ruby, not the system one, as @Sharpie pointed out - here comes the moment when it can no longer. Time permitting i'll revise build configuration to link to system libyajl when yajl-ruby is not compatible. Meanwhile - try adding an older yajl-ruby to your gemfile/gemset

[jhoblitt]

@Vasfed It turns out the problem was that yajl-ruby 1.2.0 marks all of the symbols in yajl.so as non-visible. Downgrading to 1.1.0 appears to work (in the sense, it at least compiles). Would you like a PR to update the gemspec?