Add explicit support for being installed into a system triggered with --enable-fhs...

[solanum.git] / libratbox / acinclude.m4

diff --git a/libratbox/acinclude.m4 b/libratbox/acinclude.m4
index 4a0c6e1364fe5c1d35a92ef282a4059c2f494120..e1e75a5c042f88d34d099b153179d4e494165bd2 100644 (file)
--- a/libratbox/acinclude.m4
+++ b/libratbox/acinclude.m4
@@ -2,8 +2,12 @@
 AC_DEFUN([AC_DEFINE_DIR], [
   test "x$prefix" = xNONE && prefix="$ac_default_prefix"
   test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
-  ac_define_dir=`eval echo [$]$2`
-  ac_define_dir=`eval echo [$]ac_define_dir`
+  last_ac_define_dir=`eval echo [$]$2`
+  ac_define_dir=`eval echo [$]last_ac_define_dir`
+  while test "x[$]last_ac_define_dir" != "x[$]ac_define_dir"; do
+    last_ac_define_dir="[$]ac_define_dir"
+    ac_define_dir=`eval echo [$]last_ac_define_dir`
+  done
   $1="$ac_define_dir"
   AC_SUBST($1)
   ifelse($3, ,