Emulate the version script in libjpeg v7/v8 shared libraries


git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@285 632fc199-4ca6-4c93-a231-07263d6284db
diff --git a/libjpeg.map.in b/libjpeg.map.in
new file mode 100644
index 0000000..f3e7ff8
--- /dev/null
+++ b/libjpeg.map.in
@@ -0,0 +1,4 @@
+LIBJPEG_@JPEG_LIB_VERSION_DECIMAL@ {
+  global:
+    *;
+};