Switch to using libcurl4-openssl-dev rather than GnuTLS variant.

cmake and all its dependencies appear to be licence compatible. The main reason
for the switch is that OpenSSL variant appear to be less troublesome.

Closes: #716798

debian/changelog

@@ -4,6 +4,10 @@ cmake (2.8.12-0r1) UNRELEASED; urgency=low
     - no longer contains workaround for GCC 2.96 bugs; (Closes: #717144)
     - cmake -E touch no longer truncates time to seconds. (Closes: #699657)
   * Enable bash-completion. (Closes: #722236)
+  * Switch to using libcurl4-openssl-dev rather than GnuTLS variant. cmake and
+    all its dependencies appear to be licence compatible. The main reason for
+    the switch is that OpenSSL variant appear to be less troublesome.
+    (Closes: #716798)
 
  -- Modestas Vainius <modax@debian.org>  Sun, 03 Nov 2013 12:28:06 +0200
 

debian/control

@@ -3,7 +3,7 @@ Section: devel
 Priority: optional
 Maintainer: Modestas Vainius <modax@debian.org>
 Uploaders: A. Maitland Bottoms <bottoms@debian.org>, Kai Wasserbäch <curan@debian.org>
-Build-Depends: debhelper (>= 9), libcurl4-gnutls-dev, libexpat1-dev, zlib1g-dev,
+Build-Depends: debhelper (>= 9), libcurl4-openssl-dev, libexpat1-dev, zlib1g-dev,
  libncurses5-dev, libqt4-dev (>= 4.4.0), procps [!hurd-any], libarchive-dev (>= 2.8.0),
  libbz2-dev, bash-completion
 Standards-Version: 3.9.4