3 files changed, 10 insertions, 1 deletions
diff --git a/Makefile b/Makefile
index 3edc3f0..3d4f9b3 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,8 @@
-CXX = g++
+ifeq ($(shell uname),Darwin)
+	CXX = g++-8
+else
+	CXX = g++
+endif
 CXXFLAGS = -Wall -Wextra -O2 -std=c++17 -fwrapv -pthread
 
 TARGET = competition
diff --git a/main.cpp b/main.cpp
index 5a6c779..3a801ba 100644
--- a/main.cpp
+++ b/main.cpp
@@ -69,7 +69,11 @@ static int64_t fileLastModified(const string_view fname) {
 		perror("stat");
 		exit(1);
 	}
+#ifdef __APPLE__
+	return st.st_mtimespec.tv_sec * 1000000LL + st.st_mtimespec.tv_nsec / 1000;
+#else
 	return st.st_mtim.tv_sec * 1000000LL + st.st_mtim.tv_nsec / 1000;
+#endif
 }
 
 static int64_t gettimestamp() {
diff --git a/process.cpp b/process.cpp
index 00a2e08..d3ceb28 100644
--- a/process.cpp
+++ b/process.cpp
@@ -1,6 +1,7 @@
 #include <iostream>
 #include <cstdlib>
 #include <fcntl.h>
+#include <signal.h>
 #include <sys/wait.h>
 #include "process.h"
 #include "error.h"