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Diffstat (limited to 'm4/getcwd.m4')
| -rw-r--r-- | m4/getcwd.m4 | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/m4/getcwd.m4 b/m4/getcwd.m4 index 1e1b80efa..7790dde1a 100644 --- a/m4/getcwd.m4 +++ b/m4/getcwd.m4 @@ -19,7 +19,8 @@ # Written by Paul Eggert. AC_DEFUN([AC_FUNC_GETCWD_NULL], - [AC_CHECK_HEADERS(stdlib.h unistd.h) + [ + AC_CHECK_HEADERS_ONCE(stdlib.h unistd.h) AC_CACHE_CHECK([whether getcwd (NULL, 0) allocates memory for result], [ac_cv_func_getcwd_null], [AC_TRY_RUN( |