Explain TOUCH macro and refer to docs.

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x@1087566 13f79535-47bb-0310-9956-ffa450edef68

diff --git a/modules/ssl/NWGNUmakefile b/modules/ssl/NWGNUmakefile
index da1ff3d954f70eb300f99171108828db06668ca2..048c1e42e98cfe4342feeecf946881547dc7aec0 100644 (file)
--- a/modules/ssl/NWGNUmakefile
+++ b/modules/ssl/NWGNUmakefile
@@ -279,6 +279,9 @@ install :: nlms FORCE
 vpath %.c $(AP_WORK)/modules/arch/netware
 
 # Make sure that the build doesn't attempt to regenerate the shipping files.
+# On Windows we use 'copy /b file.ext +,,' to assign the current time and date
+# to a file without modifying the file (the TOUCH macro uses this) - see also:
+# http://technet.microsoft.com/en-us/library/bb490886.aspx
 ssl_expr_parse.h : ssl_expr_parse.y
        $(call TOUCH, $@)