[cheese] Check nautilus-sendto dependency in configure

[David King <davidk src gnome org>]

commit 8a35adc6dbed9a2e672dc6243bee81092948f21a
Author: Patricia Santana Cruz <patriciasantanacruz gmail com>
Date:   Wed Jan 18 12:39:23 2012 +0000

    Check nautilus-sendto dependency in configure
    
    Check whether nautilus-sendto is installed in the configure script. This
    is only required in order to use the sharing functionality, so a warning
    is presented if nautilus-sendto is not found.
    
    Fixes bug 668072.

 configure.ac |   18 ++++++++++++++++++
 1 files changed, 18 insertions(+), 0 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 8b72172..47f003d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -145,6 +145,24 @@ AS_IF([test "x$GST_INSPECT" = "xnotfound"],
         AC_MSG_WARN([$gst_runtime_plugin was not found. It needs to be installed before Cheese is run])])
    done])
 
+# Check for nautilus-sendto runtime dependency.
+NAUTILUS_SENDTO_DEP_MSG="This is a runtime dependency just needed for using the sharing functionality in Cheese."
+NAUTILUS_SENDTO_REQUIRED=2.91.0
+AC_PATH_PROGS([NAUTILUS_SENDTO], [nautilus-sendto], [notfound])
+AS_IF([test "x$NAUTILUS_SENDTO" = "xnotfound"],
+  [AC_MSG_WARN([Unable to find nautilus-sendto >= $NAUTILUS_SENDTO_REQUIRED in the path. $NAUTILUS_SENDTO_DEP_MSG])],
+  [NAUTILUS_SENDTO_SYSTEM=`nautilus-sendto --version 2>/dev/null | $SED 's/nautilus-sendto //'`
+   AS_IF([echo $NAUTILUS_SENDTO_SYSTEM | $GREP 'version' >/dev/null],
+     [AC_MSG_WARN([Unable to check the version of nautilus-sendto, it is \
+probably too old. At least $NAUTILUS_SENDTO_REQUIRED is required. \
+$NAUTILUS_SENDTO_DEP_MSG])],
+      [AS_VERSION_COMPARE([$NAUTILUS_SENDTO_SYSTEM], [$NAUTILUS_SENDTO_REQUIRED],
+         [NS_VERSION_COMPARE=0], [NS_VERSION_COMPARE=1], [NS_VERSION_COMPARE=1])
+       AS_IF([test $NS_VERSION_COMPARE = 0],
+         [AC_MSG_WARN([Unable to find nautilus-sendto >= \
+$NAUTILUS_SENDTO_REQUIRED in the path. The current installed version is \
+$NAUTILUS_SENDTO_SYSTEM. $NAUTILUS_SENDTO_DEP_MSG])])])])
+
 # Check for GLib testing utilities.
 AC_PATH_PROG([GTESTER], [gtester], [notfound])
 AC_PATH_PROG([GTESTER_REPORT], [gtester-report], [notfound])