fix --enable-*threads

Originally committed as revision 7944 to svn://svn.ffmpeg.org/ffmpeg/trunk

diff --git a/configure b/configure
index 6f9994c..2ed763a 100755 (executable)
--- a/configure
+++ b/configure
@@ -571,6 +571,10 @@ CMDLINE_SELECT="
     mingw32
     shared
     static
+    beosthreads
+    os2threads
+    pthreads
+    w32threads
 "
 
 flashsv_decoder_deps="zlib"