more robust srcdir check

diff --git a/stepmake/aclocal.m4 b/stepmake/aclocal.m4
index 813b8309775e6c9f7b0fa021b305a336473cb0fb..be97fa96de6dc2b1ff96b03d69f21050b5efa6e9 100644 (file)
--- a/stepmake/aclocal.m4
+++ b/stepmake/aclocal.m4
@@ -668,7 +668,11 @@ AC_DEFUN(STEPMAKE_INIT, [
 
        AC_MSG_CHECKING(builddir)
        ugh_ugh_autoconf250_builddir="`pwd`"
-       if test "$srcdir" = "."; then
+
+       here_dir=$(cd . && pwd)
+       full_src_dir=$(cd $srcdir && pwd)
+
+       if test "$full_src_dir" = "$here_dir"; then
            srcdir_build=yes
        else
            srcdir_build=no