Fix make all on MacOS

.gitignore

@@ -78,3 +78,4 @@ venv/
 .project
 .tags*
 targets/*/docs/
+main

Makefile

@@ -16,7 +16,12 @@ src = $(wildcard pc/*.c) $(wildcard fido2/*.c) $(wildcard crypto/sha256/*.c) cry
 obj = $(src:.c=.o) uECC.o
 
 LIBCBOR = tinycbor/lib/libtinycbor.a
-LDFLAGS = -Wl,--gc-sections $(LIBCBOR)
+ifeq ($(shell uname -s),Darwin)
+  export LDFLAGS = -Wl,-dead_strip
+else
+  export LDFLAGS = -Wl,--gc-sections
+endif
+LDFLAGS += $(LIBCBOR)
 CFLAGS = -O2 -fdata-sections -ffunction-sections 
 
 INCLUDES = -I./tinycbor/src -I./crypto/sha256 -I./crypto/micro-ecc/ -Icrypto/tiny-AES-c/ -I./fido2/ -I./pc -I./fido2/extensions

README.md

@@ -53,8 +53,11 @@ Clone solo and build it
 ```bash
 git clone https://github.com/SoloKeysSec/solo
 cd solo/
-make all
 
+git submodules init
+git submodules update
+
+make all
 ```
 
 This builds our FIDO 2.0 and the U2F authenticator, as well as making a virtualenv in venv/