Fix cross compilation, based on OpenWRT patch. Signed-off-by: Gustavo Zacarias --- configure.ac 2012-04-20 03:55:30.000000000 -0300 +++ configure.ac 2012-05-09 11:06:49.436474039 -0300 @@ -4,7 +4,6 @@ AM_INIT_AUTOMAKE AM_CONFIG_HEADER(config.h) -AM_PATH_CPPUNIT(1.9.6) AC_PROG_CXX AC_PROG_LIBTOOL --- scripts/common.m4 2012-03-13 09:10:49.000000000 -0300 +++ scripts/common.m4 2012-05-09 11:05:56.620102678 -0300 @@ -223,7 +223,7 @@ AC_DEFUN([TORRENT_CHECK_EXECINFO], [ AC_MSG_CHECKING(for execinfo.h) - AC_RUN_IFELSE([AC_LANG_SOURCE([ + AC_LINK_IFELSE([AC_LANG_SOURCE([ #include int main() { backtrace((void**)0, 0); backtrace_symbols((char**)0, 0); return 0;} ])],