From 4e0771f57fdc6d3410a11c7731d9e8dbc3c026f6 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 2abe7112..26ee336c 100644
--- a/Makefile.libretro
+++ b/Makefile.libretro
@@ -267,6 +267,17 @@ endif
 MAIN_LDFLAGS += -shared
 MAIN_LDLIBS += $(LIBM) $(LIBZ)
 
+# 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