Use "pragma once" in automatically generated header files

Files created by gen.c were still using old-style include guards.

diff --git a/lib/dns/gen.c b/lib/dns/gen.c
index 09b877e6ff2bf503cd3923019496c06040b66401..6e65310df770e4c9d0603dd8061d05ed279b044a 100644 (file)
--- a/lib/dns/gen.c
+++ b/lib/dns/gen.c
@@ -700,8 +700,7 @@ main(int argc, char **argv) {
        }
 
        if (code) {
-               printf("#ifndef DNS_CODE_H\n");
-               printf("#define DNS_CODE_H 1\n\n");
+               printf("#pragma once\n");
 
                printf("#include <stdbool.h>\n");
                printf("#include <isc/result.h>\n\n");
@@ -868,13 +867,10 @@ main(int argc, char **argv) {
                               i, upper(ttn->typebuf));
                }
                printf("\t}\n");
-
-               printf("#endif /* DNS_CODE_H */\n");
        } else if (type_enum) {
                char *s;
 
-               printf("#ifndef DNS_ENUMTYPE_H\n");
-               printf("#define DNS_ENUMTYPE_H 1\n\n");
+               printf("#pragma once\n");
 
                printf("enum {\n");
                printf("\tdns_rdatatype_none = 0,\n");
@@ -919,14 +915,11 @@ main(int argc, char **argv) {
                       "((dns_rdatatype_t)dns_rdatatype_maila)\n");
                printf("#define dns_rdatatype_any\t"
                       "((dns_rdatatype_t)dns_rdatatype_any)\n");
-
-               printf("\n#endif /* DNS_ENUMTYPE_H */\n");
        } else if (class_enum) {
                char *s;
                int classnum;
 
-               printf("#ifndef DNS_ENUMCLASS_H\n");
-               printf("#define DNS_ENUMCLASS_H 1\n\n");
+               printf("#pragma once\n");
 
                printf("enum {\n");
 
@@ -957,7 +950,6 @@ main(int argc, char **argv) {
 #undef PRINTCLASS
 
                printf("};\n\n");
-               printf("#endif /* DNS_ENUMCLASS_H */\n");
        } else if (structs) {
                if (prefix != NULL) {
                        if ((fd = fopen(prefix, "r")) != NULL) {