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-rw-r--r--m4/jm-glibc-io.m42
1 files changed, 1 insertions, 1 deletions
diff --git a/m4/jm-glibc-io.m4 b/m4/jm-glibc-io.m4
index 3d32b9ff5..06ad89c77 100644
--- a/m4/jm-glibc-io.m4
+++ b/m4/jm-glibc-io.m4
@@ -8,7 +8,7 @@ dnl See if the glibc *_unlocked I/O macros are available.
dnl Use only those *_unlocked macros that are declared.
dnl
-AC_DEFUN(jm_FUNC_GLIBC_UNLOCKED_IO,
+AC_DEFUN([jm_FUNC_GLIBC_UNLOCKED_IO],
[
# Kludge (not executed) to make autoheader do the right thing.
if test a = b; then