diff --git a/configure.ac b/configure.ac
index bc73decf6f4..5cf890d90c0 100644
--- a/configure.ac
+++ b/configure.ac
@@ -220,6 +220,9 @@ case $host_cpu in
     ;;
 esac
 
+dnl See https://github.com/php/php-src/issues/14140
+AX_CHECK_COMPILE_FLAG([-ffp-contract=off], [CFLAGS="$CFLAGS -ffp-contract=off"])
+
 dnl Mark symbols hidden by default if the compiler (for example, gcc >= 4)
 dnl supports it. This can help reduce the binary size and startup time.
 AX_CHECK_COMPILE_FLAG([-fvisibility=hidden],