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-rw-r--r--configure.in1
1 files changed, 1 insertions, 0 deletions
diff --git a/configure.in b/configure.in
index 35e04739d2..f993a1bc3e 100644
--- a/configure.in
+++ b/configure.in
@@ -1883,6 +1883,7 @@ AC_CHECK_FUNCS(gettimeofday) # for making ac_cv_func_gettimeofday
AC_CHECK_FUNCS(gmtime_r)
AC_CHECK_FUNCS(initgroups)
AC_CHECK_FUNCS(ioctl)
+AC_CHECK_FUNCS(isfinite)
AC_CHECK_FUNCS(issetugid)
AC_CHECK_FUNCS(killpg)
AC_CHECK_FUNCS(lchmod)