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-rw-r--r--m4/free.m41
1 files changed, 0 insertions, 1 deletions
diff --git a/m4/free.m4 b/m4/free.m4
index cb7b1c666..566734b77 100644
--- a/m4/free.m4
+++ b/m4/free.m4
@@ -16,7 +16,6 @@
AC_DEFUN([gl_FUNC_FREE],
[
- AC_CHECK_HEADERS_ONCE(unistd.h)
AC_CACHE_CHECK([whether free (NULL) is known to work],
[gl_cv_func_free],
[AC_COMPILE_IFELSE(