X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=tools-for-build%2Fcanonicalize-whitespace;h=0d39131216e8439064dafb5456823ff28bd0ec74;hb=a7409fa0a69f733ea2460a1aeddbe04b5c4c0888;hp=5c64e6927e8ce5d2b24a4e2a054a8b0ef577c88e;hpb=1af3faa2b79125b774c2182cab841ed7ee555bed;p=sbcl.git

diff --git a/tools-for-build/canonicalize-whitespace b/tools-for-build/canonicalize-whitespace
index 5c64e69..0d39131 100755
--- a/tools-for-build/canonicalize-whitespace
+++ b/tools-for-build/canonicalize-whitespace
@@ -5,5 +5,13 @@
 # Convert tabs to spaces and delete trailing whitespace in files
 # which we can safely assume to be source files in appropriate languages.
 
+if ! expand -t 8 < $DEVNULL
+then
+    # If we're building with MSYS on Windows GNU expand is not available,
+    # and what we get is Microsoft Expand, which is something quite different,
+    # so bail out.
+    exit
+fi
+
 tools-for-build/whitespacely-canonical-filenames \
   | xargs tools-for-build/canonicalize-whitespace-1