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-rw-r--r--unix/configure.ac4
1 files changed, 3 insertions, 1 deletions
diff --git a/unix/configure.ac b/unix/configure.ac
index a2ebecf..5542b7f 100644
--- a/unix/configure.ac
+++ b/unix/configure.ac
@@ -178,7 +178,9 @@ AS_IF([test $libtommath_ok = yes], [
AC_SEARCH_LIBS([mp_get_bit],[tommath],[],[
libtommath_ok=no
])])
-AS_IF([test $libtommath_ok = no], [
+AS_IF([test $libtommath_ok = yes], [
+ AC_DEFINE(TCL_WITH_EXTERNAL_TOMMATH, 1, [Tcl with external libtommath])
+], [
AC_SUBST(TOMMATH_OBJS,[\${TOMMATH_OBJS}])
AC_SUBST(TOMMATH_SRCS,[\${TOMMATH_SRCS}])
AC_SUBST(TOMMATH_INCLUDE,[-I\${TOMMATH_DIR}])