Improve build for FreeBSD.

Patch from Shankar Giri Venkita Giri.

diff --git a/configure.ac b/configure.ac
index 5d6fe77345aafc5eb68302e4bac88c37bc9512d8..3353df4f4fe88c4c4887bcb8654804ff54895207 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -237,6 +237,7 @@ dnl AC_LANG_POP(C)
 lyx_win_res=false;
 case ${host} in
     *mingw*|*cygwin*) lyx_win_res=true;;
+    *freebsd*) AC_SEARCH_LIBS(backtrace_symbols, [execinfo])
 esac
 if test "x$lyx_win_res" = "xtrue"; then
     AC_CHECK_TOOL(RC, windres,)