Bugfix: _GNU_SOURCE should be wrapped in an ifndef.

diff --git a/level_0/f_execute/c/execute.h b/level_0/f_execute/c/execute.h
index 048162c..6315197 100644 (file)
--- a/level_0/f_execute/c/execute.h
+++ b/level_0/f_execute/c/execute.h
@@ -11,7 +11,9 @@
 #define _F_execute_h
 
 // Include pre-requirements.
-#define _GNU_SOURCE
+#ifndef _GNU_SOURCE
+  #define _GNU_SOURCE
+#endif // _GNU_SOURCE
 
 // Libc includes.
 #include <sched.h>

diff --git a/level_0/f_limit/c/limit.h b/level_0/f_limit/c/limit.h
index 87f8931..13c9875 100644 (file)
--- a/level_0/f_limit/c/limit.h
+++ b/level_0/f_limit/c/limit.h
@@ -11,7 +11,9 @@
 #define _F_limit_h
 
 // Include pre-requirements.
-#define _GNU_SOURCE
+#ifndef _GNU_SOURCE
+  #define _GNU_SOURCE
+#endif // _GNU_SOURCE
 
 // Libc includes.
 #include <sys/time.h>

diff --git a/level_0/f_thread/c/thread.h b/level_0/f_thread/c/thread.h
index 0af6d8c..f5b3104 100644 (file)
--- a/level_0/f_thread/c/thread.h
+++ b/level_0/f_thread/c/thread.h
@@ -11,7 +11,9 @@
 #define _F_thread_h
 
 // Include pre-requirements.
-#define _GNU_SOURCE
+#ifndef _GNU_SOURCE
+  #define _GNU_SOURCE
+#endif // _GNU_SOURCE
 
 // Libc includes.
 #include <fcntl.h>

diff --git a/level_1/fl_control_group/c/control_group.h b/level_1/fl_control_group/c/control_group.h
index 16c1407..c4745af 100644 (file)
--- a/level_1/fl_control_group/c/control_group.h
+++ b/level_1/fl_control_group/c/control_group.h
@@ -17,7 +17,9 @@
 #define _FL_control_group_h
 
 // Include pre-requirements.
-#define _GNU_SOURCE
+#ifndef _GNU_SOURCE
+  #define _GNU_SOURCE
+#endif // _GNU_SOURCE
 
 // Libc includes.
 #include <sched.h>

diff --git a/level_1/fl_execute/c/execute.h b/level_1/fl_execute/c/execute.h
index 54b69a4..061dbc2 100644 (file)
--- a/level_1/fl_execute/c/execute.h
+++ b/level_1/fl_execute/c/execute.h
@@ -15,7 +15,9 @@
 #define _FL_execute_h
 
 // Include pre-requirements.
-#define _GNU_SOURCE
+#ifndef _GNU_SOURCE
+  #define _GNU_SOURCE
+#endif // _GNU_SOURCE
 
 // Libc includes.
 #include <grp.h>

diff --git a/level_2/fll_execute/c/execute.h b/level_2/fll_execute/c/execute.h
index 3c31f9c..a8acad4 100644 (file)
--- a/level_2/fll_execute/c/execute.h
+++ b/level_2/fll_execute/c/execute.h
@@ -14,7 +14,9 @@
 #define _FLL_execute_h
 
 // Include pre-requirements.
-#define _GNU_SOURCE
+#ifndef _GNU_SOURCE
+  #define _GNU_SOURCE
+#endif // _GNU_SOURCE
 
 // Libc includes.
 #include <memory.h>

diff --git a/level_3/controller/c/controller.h b/level_3/controller/c/controller.h
index 25a6c4e..441b8e6 100644 (file)
--- a/level_3/controller/c/controller.h
+++ b/level_3/controller/c/controller.h
@@ -16,7 +16,9 @@
 #define _controller_h
 
 // Include pre-requirements.
-#define _GNU_SOURCE
+#ifndef _GNU_SOURCE
+  #define _GNU_SOURCE
+#endif // _GNU_SOURCE
 
 // Libc includes.
 #include <sched.h>