--- rxvt-unicode/configure.ac	2007/06/13 11:30:42	1.50
+++ rxvt-unicode/configure.ac	2007/06/13 12:34:32	1.51
@@ -48,7 +48,10 @@
    LINKER="$CC"
    AC_LINK_IFELSE(
       [AC_LANG_PROGRAM([struct test { }; void f() try { throw new test; } catch (...) { throw; }],[])],
-      [AC_MSG_RESULT(ok)],
+      [
+         AC_MSG_RESULT(ok)
+         CXXLIB="-lsupc++"
+      ],
       [
          AC_MSG_RESULT([no, making everything bigger and slower])
          LIBS="$save_LIBS"
@@ -58,6 +61,7 @@
    CXX="$save_CXX"
 fi
 AC_SUBST(LINKER,[$LINKER])
+AC_SUBST(CXXLIB)
 
 dnl# --------------------------------------------------------------------------
 dnl# Supply default CXXFLAGS, if not specified by `CXXFLAGS=flags ./configure'