Check if /usr/share/doc/$pkgname is a directory before attempting to remove it.

{cmake,cmake-doc,cmake-dbg,cmake-*-gui}.postinst affected.
(Closes: #614202)

debian/changelog

@@ -1,5 +1,7 @@
 cmake (2.8.3-5) UNRELEASED; urgency=low
 
+  * Check if /usr/share/doc/$pkgname is a directory before attempting to remove
+    it in {cmake,cmake-doc,cmake-dbg,cmake-*-gui}.postinst. (Closes: #614202)
 
  -- Modestas Vainius <modax@debian.org>  Sun, 20 Feb 2011 14:09:50 +0200
 

debian/cmake-curses-gui.postinst

@@ -3,14 +3,16 @@
 set -e
 
 pkgname=`basename "$0" .postinst`
+docdir="/usr/share/doc/$pkgname"
 
 # Manually create a /usr/share/doc/$pkgname symlink manually on upgrades (see
 # #404850)
 if [ "$1" = "configure" ] && [ -n "$2" ] && \
+   [ ! -L "$docdir" ] &&  [ -d "$docdir" ] && \
      dpkg --compare-versions "$2" lt "2.8.3-3";
 then
-    rmdir "/usr/share/doc/$pkgname"
-    ln -s "cmake-data" "/usr/share/doc/$pkgname"
+    rmdir "$docdir"
+    ln -s "cmake-data" "$docdir"
 fi
 
 #DEBHELPER#

debian/cmake-dbg.postinst

@@ -3,14 +3,16 @@
 set -e
 
 pkgname=`basename "$0" .postinst`
+docdir="/usr/share/doc/$pkgname"
 
 # Manually create a /usr/share/doc/$pkgname symlink manually on upgrades (see
 # #404850)
 if [ "$1" = "configure" ] && [ -n "$2" ] && \
+   [ ! -L "$docdir" ] &&  [ -d "$docdir" ] && \
      dpkg --compare-versions "$2" lt "2.8.3-3";
 then
-    rmdir "/usr/share/doc/$pkgname"
-    ln -s "cmake-data" "/usr/share/doc/$pkgname"
+    rmdir "$docdir"
+    ln -s "cmake-data" "$docdir"
 fi
 
 #DEBHELPER#

debian/cmake-doc.postinst

@@ -3,14 +3,16 @@
 set -e
 
 pkgname=`basename "$0" .postinst`
+docdir="/usr/share/doc/$pkgname"
 
 # Manually create a /usr/share/doc/$pkgname symlink manually on upgrades (see
 # #404850)
 if [ "$1" = "configure" ] && [ -n "$2" ] && \
+   [ ! -L "$docdir" ] &&  [ -d "$docdir" ] && \
      dpkg --compare-versions "$2" lt "2.8.3-3";
 then
-    rmdir "/usr/share/doc/$pkgname"
-    ln -s "cmake-data" "/usr/share/doc/$pkgname"
+    rmdir "$docdir"
+    ln -s "cmake-data" "$docdir"
 fi
 
 #DEBHELPER#

debian/cmake-qt-gui.postinst

@@ -3,14 +3,16 @@
 set -e
 
 pkgname=`basename "$0" .postinst`
+docdir="/usr/share/doc/$pkgname"
 
 # Manually create a /usr/share/doc/$pkgname symlink manually on upgrades (see
 # #404850)
 if [ "$1" = "configure" ] && [ -n "$2" ] && \
+   [ ! -L "$docdir" ] &&  [ -d "$docdir" ] && \
      dpkg --compare-versions "$2" lt "2.8.3-3";
 then
-    rmdir "/usr/share/doc/$pkgname"
-    ln -s "cmake-data" "/usr/share/doc/$pkgname"
+    rmdir "$docdir"
+    ln -s "cmake-data" "$docdir"
 fi
 
 #DEBHELPER#

debian/cmake.postinst

@@ -3,14 +3,16 @@
 set -e
 
 pkgname=`basename "$0" .postinst`
+docdir="/usr/share/doc/$pkgname"
 
 # Manually create a /usr/share/doc/$pkgname symlink manually on upgrades (see
 # #404850)
 if [ "$1" = "configure" ] && [ -n "$2" ] && \
+   [ ! -L "$docdir" ] &&  [ -d "$docdir" ] && \
      dpkg --compare-versions "$2" lt "2.8.3-3";
 then
-    rmdir "/usr/share/doc/$pkgname"
-    ln -s "cmake-data" "/usr/share/doc/$pkgname"
+    rmdir "$docdir"
+    ln -s "cmake-data" "$docdir"
 fi
 
 #DEBHELPER#