From 8f151d797b015b7d1070151e75d56587a7f3652f Mon Sep 17 00:00:00 2001
From: Mike Gabriel <mike.gabriel@das-netzwerkteam.de>
Date: Fri, 22 Mar 2013 22:33:40 +0100
Subject: Work-in patch from Jan Engehardt for working around different
 improper bash implementations of string-in-string replacing. (Fixes: #145).

---
 debian/Makefile.nx-libs    | 12 ++++++------
 debian/Makefile.replace.sh | 27 +++++++++++++++++++++++++++
 debian/changelog           |  3 +++
 debian/roll-tarballs.sh    |  1 +
 4 files changed, 37 insertions(+), 6 deletions(-)
 create mode 100644 debian/Makefile.replace.sh

diff --git a/debian/Makefile.nx-libs b/debian/Makefile.nx-libs
index 74f0d3a38..beb522c5b 100644
--- a/debian/Makefile.nx-libs
+++ b/debian/Makefile.nx-libs
@@ -93,23 +93,23 @@ install-full:
 	cp -aL nx-X11/exports/include/* nx-X11/.build-exports/include
 
 	# copy libs (for libnx-x11), we want the targets of the links
-	find nx-X11/exports/lib/ | grep -F ".so" | while read libpath; do \
+	. replace.sh; set -x; find nx-X11/exports/lib/ | grep -F ".so" | while read libpath; do \
 	    libfile=$$(basename $$libpath); \
 	    libdir=$$(dirname $$libpath); \
 	    link=$$(readlink $$libpath); \
 	\
-	    mkdir -p $${libdir//exports/.build-exports}; \
-	    cp -a $${libpath/$$libfile/$$link} $${libdir//exports/.build-exports}; \
+	    mkdir -p "$$(string_rep "$$libdir" exports .build-exports)"; \
+	    cp -a "$$(string_rep "$$libpath" "$$libfile" "$$link")" "$$(string_rep "$$libdir" exports .build-exports)"; \
 	done;
 
 	$(INSTALL_DIR) $(DESTDIR)$(NXLIBDIR)/X11
 	$(COPY_SYMLINK) nx-X11/.build-exports/lib/*.so* $(DESTDIR)$(NXLIBDIR)/X11/
 
-	find nx-X11/.build-exports/include/ -type d | grep -v "include/X11/bitmaps" | \
+	. replace.sh; set -x; find nx-X11/.build-exports/include/ -type d | grep -v "include/X11/bitmaps" | \
 	    while read dirname; do \
-	        $(INSTALL_DIR) $${dirname//"nx-X11/.build-exports/include"/"$(DESTDIR)$(PREFIX)/include/nx"}; \
+	        $(INSTALL_DIR) "$$(string_rep "$$dirname" nx-X11/.build-exports/include "$(DESTDIR)$(PREFIX)/include/nx")"; \
 	        $(INSTALL_FILE) $${dirname}/*.h \
-	                        $${dirname//"nx-X11/.build-exports/include"/"$(DESTDIR)$(PREFIX)/include/nx"}/ || true; \
+	                        "$$(string_rep "$$dirname" nx-X11/.build-exports/include "$(DESTDIR)$(PREFIX)/include/nx")"/ || true; \
 	    done; \
 
 	$(INSTALL_DIR) $(DESTDIR)$(PREFIX)/include/nx/X11/bitmaps
diff --git a/debian/Makefile.replace.sh b/debian/Makefile.replace.sh
new file mode 100644
index 000000000..d47d92bf4
--- /dev/null
+++ b/debian/Makefile.replace.sh
@@ -0,0 +1,27 @@
+# from http://mywiki.wooledge.org/BashFAQ/021
+
+string_rep()
+{
+	# initialize vars
+	in=$1
+	unset out
+
+	# SEARCH must not be empty
+	test -n "$2" || return
+
+	while true; do
+		# break loop if SEARCH is no longer in "$in"
+		case "$in" in
+			*"$2"*) : ;;
+			*) break;;
+		esac
+
+		# append everything in "$in", up to the first instance of SEARCH, and REP, to "$out"
+		out=$out${in%%"$2"*}$3
+		# remove everything up to and including the first instance of SEARCH from "$in"
+		in=${in#*"$2"}
+	done
+
+	# append whatever is left in "$in" after the last instance of SEARCH to out, and print
+	printf '%s%s\n' "$out" "$in"
+}
diff --git a/debian/changelog b/debian/changelog
index 72601647e..824d74608 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -3,6 +3,9 @@ nx-libs (2:3.5.0.18-0) UNRELEASED; urgency=low
   [ Mike Gabriel ]
   * Remove duplicate install of nxproxy from main Makefile. Spotted by Jan
     Engelhard.
+  * Work-in patch from Jan Engehardt for working around different
+    improper bash implementations of string-in-string replacing. (Fixes:
+    #145).
 
   [ Orion Poplawski ]
   * Fix wrong symlink direction of libNX_* files. (Fixes: #107).
diff --git a/debian/roll-tarballs.sh b/debian/roll-tarballs.sh
index b43de4b88..57b3aad49 100755
--- a/debian/roll-tarballs.sh
+++ b/debian/roll-tarballs.sh
@@ -120,6 +120,7 @@ mv -v debian/changelog doc/changelog
 
 # copy the top-level makefile if no quilt patch created it before
 test -f Makefile || test -f debian/Makefile.nx-libs && cp -v debian/Makefile.nx-libs Makefile
+test -f replace.sh || test -f debian/Makefile.replace.sh && cp -v debian/Makefile.replace.sh replace.sh
 
 # remove folders that we do not want to roll into the tarball
 rm -Rf ".pc/"
-- 
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