For BeOS PowerPC.  Chris Herborth.
diff --git a/config.h.in b/config.h.in
index 0dc3f47..de22507 100644
--- a/config.h.in
+++ b/config.h.in
@@ -81,6 +81,9 @@
 
 /* Used for BeOS configuration */
 #undef DL_EXPORT_HEADER
+#ifdef DL_EXPORT_HEADER
+#include DL_EXPORT_HEADER
+#endif
 
 /* Define if getpgrp() must be called as getpgrp(0). */
 #undef GETPGRP_HAVE_ARG