libretro, improve toolchain path handling for GCW0

diff --git a/Makefile.libretro b/Makefile.libretro
index 32498b3..eb9c20c 100644 (file)
--- a/Makefile.libretro
+++ b/Makefile.libretro
@@ -415,8 +415,12 @@ else ifeq ($(platform), emscripten)
 # GCW0
 else ifeq ($(platform), gcw0)
        TARGET := $(TARGET_NAME)_libretro.so
-       CC = mipsel-linux-gcc
-       AR = mipsel-linux-ar
+ifeq (,$(shell command -v $(GCW0_PREFIX)mipsel-gcw0-linux-uclibc-gcc 2>/dev/null))
+       # locate the toolchain for buildbot if it isn't in path or prefix not set
+       GCW0_PREFIX = /opt/gcw0-toolchain/usr/bin/
+endif
+       CC = $(GCW0_PREFIX)mipsel-linux-gcc
+       AR = $(GCW0_PREFIX)mipsel-linux-ar
        SHARED := -shared -nostdlib
        fpic := -fPIC
        LIBM :=