diff --git a/library/Makefile b/library/Makefile
index 2c4a93ee2..d8a4dd4b0 100644
--- a/library/Makefile
+++ b/library/Makefile
@@ -17,10 +17,15 @@ endif
 # To compile on Plan9:
 # CFLAGS += -D_BSD_EXTENSION
 
+# if were running on Windows build for Windows
+ifdef WINDOWS
+WINDOWS_BUILD=1
+endif
+
 # To compile as a shared library:
 ifdef SHARED
 # all code is position-indep with mingw, avoid warning about useless flag
-ifndef WINDOWS
+ifndef WINDOWS_BUILD
 CFLAGS += -fPIC
 endif
 endif
@@ -31,14 +36,6 @@ DLEXT=so
 # OSX shared library extension:
 # DLEXT=dylib
 
-#
-# if we running on Windows build
-# for Windows
-#
-ifdef WINDOWS
-WINDOWS_BUILD=1
-endif
-
 # Windows shared library extension:
 ifdef WINDOWS_BUILD
 DLEXT=dll