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-rw-r--r--autoconf/configure.ac3
1 files changed, 3 insertions, 0 deletions
diff --git a/autoconf/configure.ac b/autoconf/configure.ac
index 7fa883e9cc..5975707874 100644
--- a/autoconf/configure.ac
+++ b/autoconf/configure.ac
@@ -40,6 +40,9 @@ dnl in the output of --version option of the generated configure script.
AC_SUBST(LLVM_COPYRIGHT,["Copyright (c) 2003-2012 University of Illinois at Urbana-Champaign."])
AC_COPYRIGHT([Copyright (c) 2003-2012 University of Illinois at Urbana-Champaign.])
+dnl Add --program-prefix value to Makefile.rules. Already an ARG variable.
+AC_SUBST([program_prefix])
+
dnl Indicate that we require autoconf 2.60 or later.
AC_PREREQ(2.60)