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-rw-r--r--boehm-gc/configure.ac2
1 files changed, 1 insertions, 1 deletions
diff --git a/boehm-gc/configure.ac b/boehm-gc/configure.ac
index 2206f76eaa2..52ab0b5fa47 100644
--- a/boehm-gc/configure.ac
+++ b/boehm-gc/configure.ac
@@ -49,7 +49,7 @@ m4_rename([_AC_ARG_VAR_PRECIOUS],[real_PRECIOUS])
m4_define([_AC_ARG_VAR_PRECIOUS],[])
AC_PROG_CC
AC_PROG_CXX
-m4_rename([real_PRECIOUS],[_AC_ARG_VAR_PRECIOUS])
+m4_rename_force([real_PRECIOUS],[_AC_ARG_VAR_PRECIOUS])
AM_PROG_CC_C_O