Fix compiler warnings when X11 autolaunch and launchd are both disabled

From the department of "if it isn't tested, it doesn't work". I tried
compiling dbus without an assortment of optional features:

    in_builddir ~/build/dbus/legacy ${MR_REPO}/configure \
        --enable-developer --enable-maintainer-mode --enable-tests \
        dbus_cv_sync_sub_and_fetch=no \
        --disable-selinux \
        --disable-inotify \
        --disable-dnotify \
        --disable-epoll \
        --disable-kqueue \
        --disable-launchd \
        --disable-systemd \
        --disable-libaudit \
        --without-valgrind \
        --disable-x11-autolaunch \
        && ...

and it resulted in -Wunused warnings.

Bug: https://bugs.freedesktop.org/show_bug.cgi?id=64362
Signed-off-by: Simon McVittie <simon.mcvittie@collabora.co.uk>
Reviewed-by: Thiago Macieira <thiago@kde.org>

diff --git a/dbus/dbus-sysdeps-unix.c b/dbus/dbus-sysdeps-unix.c
index 34dfbe7..d3dd600 100644 (file)
--- a/dbus/dbus-sysdeps-unix.c
+++ b/dbus/dbus-sysdeps-unix.c
@@ -3220,6 +3220,7 @@ _dbus_get_tmpdir(void)
   return tmpdir;
 }
 
+#if defined(DBUS_ENABLE_X11_AUTOLAUNCH) || defined(DBUS_ENABLE_LAUNCHD)
 /**
  * Execute a subprocess, returning up to 1024 bytes of output
  * into @p result.
@@ -3421,6 +3422,7 @@ _read_subprocess_line_argv (const char *progpath,
 
   return retval;
 }
+#endif
 
 /**
  * Returns the address of a new session bus.

diff --git a/tools/dbus-launch.c b/tools/dbus-launch.c
index 2a9dabf..b2ffe41 100644 (file)
--- a/tools/dbus-launch.c
+++ b/tools/dbus-launch.c
@@ -1162,7 +1162,6 @@ main (int argc, char **argv)
       char *end;
       long wid = 0;
       long val;
-      int ret2;
 
       verbose ("=== Parent dbus-launch continues\n");
       
@@ -1236,6 +1235,8 @@ main (int argc, char **argv)
 #ifdef DBUS_ENABLE_X11_AUTOLAUNCH
       if (xdisplay != NULL)
         {
+          int ret2;
+
           verbose("Saving x11 address\n");
           ret2 = x11_save_address (bus_address, bus_pid, &wid);
           /* Only get an existing dbus session when autolaunching */