diff --git a/_BuildDebug.sh b/_BuildDebug.sh
new file mode 100644
index 000000000..a741000c5
--- /dev/null
+++ b/_BuildDebug.sh
@@ -0,0 +1,3 @@
+#!/bin/sh -e
+MONO_IOMAP=case msbuild /p:Configuration=Debug pabcnetc.sln
+MONO_IOMAP=case msbuild /p:Configuration=Debug PascalABCNETLinux.sln