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-rw-r--r--ext/tdb/extconf.rb2
1 files changed, 2 insertions, 0 deletions
diff --git a/ext/tdb/extconf.rb b/ext/tdb/extconf.rb
index 5359f7d..f7bb223 100644
--- a/ext/tdb/extconf.rb
+++ b/ext/tdb/extconf.rb
@@ -9,5 +9,7 @@ have_library('tdb') or abort 'libtdb missing'
 have_func('tdb_jenkins_hash')
 have_func('tdb_repack')
 have_const('TDB_ERR_NESTING', 'tdb.h')
+have_header('pthread.h')
+have_library('pthread')
 
 create_makefile('tdb_ext')