added $(A) for lib extension.

diff --git a/Makefile.common.in b/Makefile.common.in
index c47f41b..faacf4a 100755 (executable)
--- a/Makefile.common.in
+++ b/Makefile.common.in
@@ -26,9 +26,11 @@ PYTHON_INCLUDES=@PYTHON_INCLUDES@
 # libtool stuff
 OBJEXT=@OBJEXT@
 EXEEXT=@EXEEXT@
+AREXT=@AREXT@
 SHARED=@SHARED@
 E=$(EXEEXT)
 O=$(OBJEXT)
+A=$(AREXT)
 SLEXT=@SLEXT@
 ECHO=@ECHO@
 RANLIB=@RANLIB@