Bug 1487595 - Error out instead of setting EXPAND_LIBS_LIST_STYLE to none. r=froydnj

Back before expandlibs was removed in bug 1429875, not using list files
was supported, but nowadays, it just leads to errors like the following:

*** No rule to make target 'libfake_so.list', needed by 'libfake.so'.  Stop.

We might as well error out during configure, rather than much later
during the build.

Differential Revision: https://phabricator.services.mozilla.com/D4738

build/autoconf/expandlibs.m4

@@ -29,7 +29,7 @@ AC_CACHE_CHECK(what kind of list files are supported by the linker,
              elif AC_TRY_COMMAND(${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS @conftest.list $LIBS 1>&5) && test -s conftest${ac_exeext}; then
                  EXPAND_LIBS_LIST_STYLE=list
              else
-                 EXPAND_LIBS_LIST_STYLE=none
+                 AC_ERROR([Couldn't find one that works])
              fi
          fi
      else