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-rw-r--r--configure.in2
1 files changed, 1 insertions, 1 deletions
diff --git a/configure.in b/configure.in
index bf2afc2b1b..5537b4ceb3 100644
--- a/configure.in
+++ b/configure.in
@@ -108,7 +108,7 @@ else
fi
fi
-AC_CHECK_FUNCS(mkstemp mkdtemp)
+AC_CHECK_FUNCS(mkstemp mkdtemp isblank)
dnl **************************************************
dnl ctime_r prototype