Add Jan's reasoning for using string_rep() instead of bash based string…

debian/Makefile.replace.sh

 # from http://mywiki.wooledge.org/BashFAQ/021
 
+# The ${a/b/c} substitution is not POSIX compatible. Additionally, in
+# bash 3.x, quotes do not escape slashes. This causes screwed up
+# installation paths.
+#
+#     SLES 11, bash-3.2-147.9.13
+#     $ dirname="foo/bar"
+#     $ echo ${dirname//"foo/bar"/"omg/nei"}
+#     bar/omg/nei/bar
+#
+#     openSUSE 12.2, bash-4.2-51.6.1
+#     $ dirname="foo/bar"
+#     $ echo ${dirname//"foo/bar"/"omg/nei"}
+#     omg/nei
+#
+#     openSUSE 12.2, dash-0.5.7-5.1.2.x86_64
+#     $ dirname="foo/bar"
+#     $ echo ${dirname//"foo/bar"/"omg/nei"}
+#     dash: 2: Bad substitution
+#
+# Source this file into your bash scripts to make available
+# a replacement (the string_rep function) for this substitution
+# mess.
+#
+
 string_rep()
 {
 	# initialize vars

debian/changelog

+nx-libs (2:3.5.0.19-0) UNRELEASED; urgency=low
+
+  * Add Jan's reasoning for using string_rep() instead of bash based
+    string substitutions as comment to /debian/Makefile.replaces.sh.
+
+ -- Mike Gabriel <sunweaver@debian.org>  Sat, 23 Mar 2013 00:42:01 +0100
+
 nx-libs (2:3.5.0.18-0) unstable; urgency=low
 
   [ Mike Gabriel ]