Add printf attributes as suggested by gcc -Wmissing-format-attribute

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>

2 files changed, 4 insertions, 5 deletions

diff --git a/dsimple.c b/dsimple.c
index d2d52a4..38576f7 100644
--- a/dsimple.c
+++ b/dsimple.c
@@ -314,8 +314,7 @@ Window Window_With_Name(
 /*
  * outl: a debugging routine.  Flushes stdout then prints a message on stderr
  *       and flushes stderr.  Used to print messages when past certain points
- *       in code so we can tell where we are.  Outl may be invoked like
- *       printf with up to 7 arguments.
+ *       in code so we can tell where we are.  Outl may be invoked like printf.
  */
 void
 outl(const char *msg, ...)
@@ -331,7 +330,7 @@ outl(const char *msg, ...)
 
 
 /*
- * Standard fatal error routine - call like printf but maximum of 7 arguments.
+ * Standard fatal error routine - call like printf.
  * Does not require dpy or screen defined.
  */
 void Fatal_Error(const char *msg, ...)
diff --git a/dsimple.h b/dsimple.h
index c249b45..b0422bd 100644
--- a/dsimple.h
+++ b/dsimple.h
@@ -76,5 +76,5 @@ void usage(void) _X_NORETURN;
 
 Window Select_Window(Display *, int);
 Window Window_With_Name(Display *, Window, const char *);
-void Fatal_Error(const char *, ...) _X_NORETURN;
-void outl(const char *, ...);
+void Fatal_Error(const char *, ...) _X_NORETURN _X_ATTRIBUTE_PRINTF(1, 2);
+void outl(const char *, ...) _X_ATTRIBUTE_PRINTF(1, 2);