[gnome-builder] sysprof: make --enable-sysprof=auto by default

[Christian Hergert <chergert src gnome org>]

commit df65b7c9adbecabe962b55ef9f3a17de247d7bee
Author: Christian Hergert <chergert redhat com>
Date:   Wed Aug 24 10:44:04 2016 -0700

    sysprof: make --enable-sysprof=auto by default
    
    This allows us to disable the sysprof plugin if sysprof is not installed
    or lacks the sysprof-ui-2 library.

 plugins/sysprof/configure.ac |   14 +++++++-------
 1 files changed, 7 insertions(+), 7 deletions(-)
---
diff --git a/plugins/sysprof/configure.ac b/plugins/sysprof/configure.ac
index 198ee55..8526d7e 100644
--- a/plugins/sysprof/configure.ac
+++ b/plugins/sysprof/configure.ac
@@ -7,21 +7,21 @@ PKG_CHECK_MODULES(SYSPROF,
 
 # --enable-sysprof-plugin=yes/no
 AC_ARG_ENABLE([sysprof-plugin],
-              [AS_HELP_STRING([--enable-sysprof-plugin=@<:@yes/no@:>@],
+              [AS_HELP_STRING([--enable-sysprof-plugin=@<:@yes/no/auto@:>@],
                               [Build with support for the Sysprof system profiler.])],
               [enable_sysprof_plugin=$enableval],
-              [enable_sysprof_plugin=yes])
+              [enable_sysprof_plugin=auto])
 
-AS_IF([test x$enable_sysprof_plugin = xyes && test x$have_sysprof_ui = xno],[
-       AC_MSG_ERROR([Failed to locate sysprof-ui dependencies. Try installing Sysprof with GTK support.])
+AS_IF([test x$enable_sysprof_plugin = xauto],[
+       AS_IF([test x$have_sysprof_ui = xyes],[enable_sysprof_plugin=yes],[enable_sysprof_plugin=no])
 ])
 
-AS_IF([test x$have_sysprof_ui = xno],[
-       enable_sysprof_plugin=no
+AS_IF([test x$enable_sysprof_plugin = xyes && test x$have_sysprof_ui = xno],[
+       AC_MSG_ERROR([Failed to locate sysprof-ui dependencies. Try installing Sysprof with GTK support.])
 ])
 
 # for if ENABLE_SYSPROF_PLUGIN in Makefile.am
-AM_CONDITIONAL(ENABLE_SYSPROF_PLUGIN, test x$enable_sysprof_plugin != xno)
+AM_CONDITIONAL(ENABLE_SYSPROF_PLUGIN, [test x$enable_sysprof_plugin = xyes])
 
 # Ensure our makefile is generated by autoconf
 AC_CONFIG_FILES([plugins/sysprof/Makefile])