3 files changed, 6 insertions, 0 deletions
diff --git a/src/stdlib/abs.c b/src/stdlib/abs.c
index 4806d629..e721fdc2 100644
--- a/src/stdlib/abs.c
+++ b/src/stdlib/abs.c
@@ -1,3 +1,5 @@
+#include <stdlib.h>
+
 int abs(int a)
 {
 	return a>0 ? a : -a;
diff --git a/src/stdlib/labs.c b/src/stdlib/labs.c
index 675b95b8..83ddb147 100644
--- a/src/stdlib/labs.c
+++ b/src/stdlib/labs.c
@@ -1,3 +1,5 @@
+#include <stdlib.h>
+
 long labs(long a)
 {
 	return a>0 ? a : -a;
diff --git a/src/stdlib/llabs.c b/src/stdlib/llabs.c
index bec4a03d..9dfaf5cf 100644
--- a/src/stdlib/llabs.c
+++ b/src/stdlib/llabs.c
@@ -1,3 +1,5 @@
+#include <stdlib.h>
+
 long long llabs(long long a)
 {
 	return a>0 ? a : -a;