X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=mk%2Fproject.mk.in;h=3ceef15f30d5344f4af564a7f18bd50d9852ae88;hb=8a23f2d9b91e8bf180a8578b2c929961b3c1825b;hp=dc16a392167d6e4a9c8154bb2a944bc7d3f6dff6;hpb=82fbc4be78c26dca06d3ff4a4b3ddc9a394edbd0;p=ghc-hetmet.git

diff --git a/mk/project.mk.in b/mk/project.mk.in
index dc16a39..3ceef15 100644
--- a/mk/project.mk.in
+++ b/mk/project.mk.in
@@ -135,3 +135,7 @@ else
 Windows=NO
 endif
 
+# Tell the build system what the host operating system is
+# This distinguishes "msys" and "cygwin", which are not
+# not distinguished by HOST_OS_CPP
+OSTYPE=@OSTYPE@