diff --git a/.travis.yml b/.travis.yml
new file mode 100644
index 00000000..995551df
--- /dev/null
+++ b/.travis.yml
@@ -0,0 +1,8 @@
+language: c
+compiler:
+  - clang
+  - gcc
+before_script:
+  - sudo apt-get update -q
+  - sudo apt-get install nodejs
+script: make
diff --git a/Makefile b/Makefile
index bf0ed728..f0711fe6 100644
--- a/Makefile
+++ b/Makefile
@@ -7,9 +7,9 @@ c:
 	@node ./src/transpile.js
 
 test:
-	@gcc -Weverything -Werror -Wno-padded $(FILES) && ./a.out
+	@gcc -std=c99 -Werror -Wno-padded $(FILES) -lm && ./a.out
 	@rm a.out
 
 debug:
-	@gcc -ggdb $(FILES) && lldb ./a.out
+	@gcc -ggdb $(FILES) -lm && lldb ./a.out
 	@rm a.out
diff --git a/src/Layout.c b/src/Layout.c
index a6035801..8581ad27 100644
--- a/src/Layout.c
+++ b/src/Layout.c
@@ -1,4 +1,4 @@
-
+#include <math.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>