From 1414a2690bb85d2e544e7720ff261572d0f96072 Mon Sep 17 00:00:00 2001
From: Lucas Cimon <lucas.cimon@gmail.com>
Date: Thu, 31 Dec 2015 09:20:31 +0100
Subject: [PATCH] Definining __STDC_FORMAT_MACROS to support old gcc versions +
 explicitly raising an error when Brotli submodule is not initialized - cf.
 issue #19

---
 Makefile | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 4620278..8776089 100644
--- a/Makefile
+++ b/Makefile
@@ -5,7 +5,7 @@ CPPFLAGS = -I./brotli/dec/ -I./brotli/enc/ -I./src
 CC ?= gcc
 CXX ?= g++
 
-COMMON_FLAGS = -fno-omit-frame-pointer -no-canonical-prefixes -DFONT_COMPRESSION_BIN
+COMMON_FLAGS = -fno-omit-frame-pointer -no-canonical-prefixes -DFONT_COMPRESSION_BIN -D __STDC_FORMAT_MACROS
 
 ifeq ($(OS), Darwin)
   CPPFLAGS += -DOS_MACOSX
@@ -30,6 +30,10 @@ EXECUTABLES=woff2_compress woff2_decompress
 
 EXE_OBJS=$(patsubst %, $(SRCDIR)/%.o, $(EXECUTABLES))
 
+ifeq (,$(wildcard $(BROTLI)/*))
+  $(error Brotli dependency not found : you must initialize the Git submodule)
+endif
+
 all : $(OBJS) $(EXECUTABLES)
 
 $(EXECUTABLES) : $(EXE_OBJS) deps