Add const attributes to fix gcc -Wwrite-strings warnings

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

2 files changed, 4 insertions, 4 deletions

diff --git a/dsimple.c b/dsimple.c
index d1b9fd9..5f98c56 100644
--- a/dsimple.c
+++ b/dsimple.c
@@ -75,7 +75,7 @@ from The Open Group.
 
 
 /* This stuff is defined in the calling program by dsimple.h */
-char    *program_name = "unknown_program";
+const char    *program_name = "unknown_program";
 
 /*
  * Get_Display_Name (argc, argv) - return string representing display name
@@ -403,7 +403,7 @@ Window_With_Name (
 /*
  * Standard fatal error routine - call like printf
  */
-void Fatal_Error (char *msg, ...)
+void Fatal_Error (const char *msg, ...)
 {
     va_list args;
     fflush (stdout);
diff --git a/dsimple.h b/dsimple.h
index b6adc43..9529605 100644
--- a/dsimple.h
+++ b/dsimple.h
@@ -43,7 +43,7 @@ typedef enum { False = 0, True } Bool;
 
     /* Global variables used by routines in dsimple.c */
 
-extern char *program_name;                   /* Name of this program */
+extern const char *program_name;             /* Name of this program */
 
     /* Declarations for functions in dsimple.c */
 
@@ -54,7 +54,7 @@ void Setup_Display_And_Screen (const char *displayname,
 xcb_window_t Select_Window (xcb_connection_t *, const xcb_screen_t *, int);
 xcb_window_t Window_With_Name (xcb_connection_t *, xcb_window_t, const char *);
 
-void Fatal_Error (char *, ...) _X_NORETURN _X_ATTRIBUTE_PRINTF(1, 2);
+void Fatal_Error (const char *, ...) _X_NORETURN _X_ATTRIBUTE_PRINTF(1, 2);
 
 void Print_X_Error (xcb_connection_t *, xcb_generic_error_t *);