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-rw-r--r--libcilkrts/configure.ac1
1 files changed, 1 insertions, 0 deletions
diff --git a/libcilkrts/configure.ac b/libcilkrts/configure.ac
index 936786816e9..f84cc2ae9ce 100644
--- a/libcilkrts/configure.ac
+++ b/libcilkrts/configure.ac
@@ -49,6 +49,7 @@ AC_PROG_CC
# AC_CONFIG_MACRO_DIR([..])
AC_CONFIG_FILES([Makefile])
AM_ENABLE_MULTILIB(, ..)
+AC_FUNC_ALLOCA
# Get target configury.
. ${srcdir}/configure.tgt