From e230dbf6ca642eb6cc660e5d581fa4d16a85934b Mon Sep 17 00:00:00 2001
From: notaz <notasas@gmail.com>
Date: Sun, 10 Jul 2016 02:09:08 +0300
Subject: [PATCH] libretro: try to prevent bad builds

---
 Makefile.libretro | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/Makefile.libretro b/Makefile.libretro
index d566e23a..cbebc5df 100644
--- a/Makefile.libretro
+++ b/Makefile.libretro
@@ -182,6 +182,17 @@ MAIN_LDFLAGS += -shared
 MAIN_LDLIBS += -lm -lz
 EXTRA_LDFLAGS =
 
+# try to autodetect stuff for the lazy
+ifndef ARCH
+ARCH = $(shell $(CC) -dumpmachine | awk -F- '{print $$1}')
+endif
+ifndef HAVE_NEON
+HAVE_NEON = $(shell $(CC) -E -dD - < /dev/null 2> /dev/null | grep -q __ARM_NEON__ && echo 1 || echo 0)
+endif
+ifeq ($(shell ld -v 2> /dev/null | awk '{print $$1}'),GNU)
+MAIN_LDFLAGS += -Wl,--no-undefined
+endif
+
 TARGET ?= libretro.so
 PLATFORM = libretro
 BUILTIN_GPU ?= peops
-- 
2.39.2