From f12c33b6112b38f51ae1813b19f4c331ede2af2e Mon Sep 17 00:00:00 2001
From: Yusuke Endoh <mame@ruby-lang.org>
Date: Sat, 23 Jan 2021 16:07:41 +0900
Subject: [PATCH] configure.ac: Add some compiler options for emscripten

"-lc" and "-s ALLOW_MEMORY_GROWTH=1" are needed
---
 configure.ac | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/configure.ac b/configure.ac
index 8a8b7d949d..05d3e993c5 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1137,6 +1137,9 @@ main()
 			ac_cv_func___builtin_setjmp=no
 		])
 		],
+[emscripten*], [LIBS="-lm -lc $LIBS"
+		RUBY_APPEND_OPTIONS(LDFLAGS, -s ALLOW_MEMORY_GROWTH=1)
+		],
 [	LIBS="-lm $LIBS"])
 : ${ORIG_LIBS=$LIBS}