diff --git a/build/compiler.mk b/build/compiler.mk
index c641d684c..22c9bd271 100644
--- a/build/compiler.mk
+++ b/build/compiler.mk
@@ -12,7 +12,8 @@ PKG = build/bootstrap/package.com
 MKDEPS = build/bootstrap/mkdeps.com
 ZIPOBJ = build/bootstrap/zipobj.com
 
-ifeq ($(MODE), darwin)
+ifeq ($(shell uname), Darwin)
+
 TOOLPREFIX=/usr/local/bin/x86_64-linux-musl-
 AS = $(TOOLPREFIX)as
 CC = $(TOOLPREFIX)gcc
diff --git a/build/config.mk b/build/config.mk
index 427b8b8ce..17827a02e 100644
--- a/build/config.mk
+++ b/build/config.mk
@@ -308,23 +308,6 @@ OBJDUMP = llvm-objdump
 ADDR2LINE = llvm-addr2line
 endif
 
-# macOS using gcc - options copied from Tiny Metallic Unix Mode
-ifeq ($(MODE), darwin)
-CONFIG_CPPFLAGS +=		\
-	-DTINY			\
-	-DNDEBUG		\
-	-DTRUSTWORTHY		\
-	-DSUPPORT_VECTOR=251
-CONFIG_CCFLAGS +=		\
-	-Os			\
-	-fno-align-functions	\
-	-fno-align-jumps	\
-	-fno-align-labels	\
-	-fno-align-loops
-TARGET_ARCH ?=			\
-	-msse3
-endif
-
 # ANSI Mode
 #
 # These flags cause GCC to predefine __STRICT_ANSI__. Please be warned