replace AC_RUN_IFELSE usage with AC_COMPILE_IFELSE

[sandrotosi]

Hello,
this was reported in Debian as http://bugs.debian.org/885151:

transmission fails to cross build from source, because it uses
AC_RUN_IFELSE. Fortunately, the use is unnecessary and can simply be
filled with AC_COMPILE_IFELSE. The attached patch implements that.

Index: transmission-2.92/configure.ac
===================================================================
--- transmission-2.92.orig/configure.ac
+++ transmission-2.92/configure.ac
@@ -386,14 +386,12 @@
 dnl MINIUPNPC_API_VERSION and we won't have to figure
 dnl it out on our own
 if test "x$upnp_version" = "xunknown" ; then
-  AC_RUN_IFELSE(
+  AC_COMPILE_IFELSE(
     [AC_LANG_PROGRAM(
       [#include <stdlib.h>
        #include <miniupnpc/miniupnpc.h>],
-      [#ifdef MINIUPNPC_API_VERSION
-       return EXIT_SUCCESS;
-       #else
-       return EXIT_FAILURE;
+      [#ifndef MINIUPNPC_API_VERSION
+       #error MINIUPNPC_API_VERSION undefined
        #endif]
     )],
     [upnp_version=">= 1.7"]

would you consider merging it?

thanks,
Sandro

[mikedld]

Thanks!

[bkuhls]

This PR fixed https://trac.transmissionbt.com/ticket/6140, thanks!