Mark the font data as const. We no longer modify it in place.

caca/mono9.data

@@ -5,7 +5,7 @@
  */
 
 static size_t const mono9_size = 246854;
-static uint8_t mono9_data[246854] =
+static uint8_t const mono9_data[246854] =
 {
 /* file: */
 0xCA,0xCA, /* caca_header */

caca/monobold12.data

@@ -5,7 +5,7 @@
  */
 
 static size_t const monobold12_size = 419205;
-static uint8_t monobold12_data[419205] =
+static uint8_t const monobold12_data[419205] =
 {
 /* file: */
 0xCA,0xCA, /* caca_header */

tools/makefont.c

@@ -188,7 +188,7 @@ int main(int argc, char *argv[])
 
     printf("static size_t const %s_size = %i;\n",
            prefix, 4 + control_size + data_size);
-    printf("static uint8_t %s_data[%i] =\n",
+    printf("static uint8_t const %s_data[%i] =\n",
            prefix, 4 + control_size + data_size);
     printf("{\n");