mesa/program: consistently use ifndef guards over pragma once

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Acked-by: Vedran Miletić <vedran@miletic.net>
Acked-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net>

src/mesa/program/ir_to_mesa.h

@@ -21,7 +21,8 @@
  * DEALINGS IN THE SOFTWARE.
  */
 
-#pragma once
+#ifndef IR_TO_MESA_H
+#define IR_TO_MESA_H
 
 #include "main/glheader.h"
 
@@ -51,3 +52,5 @@ _mesa_associate_uniform_storage(struct gl_context *ctx,
 #ifdef __cplusplus
 }
 #endif
+
+#endif /* IR_TO_MESA_H */

src/mesa/program/prog_parameter_layout.h

@@ -28,7 +28,6 @@
  * \author Ian Romanick <ian.d.romanick@intel.com>
  */
 
-#pragma once
 
 #ifndef PROG_PARAMETER_LAYOUT_H
 #define PROG_PARAMETER_LAYOUT_H

src/mesa/program/prog_to_nir.h

@@ -21,7 +21,6 @@
  * IN THE SOFTWARE.
  */
 
-#pragma once
 #ifndef PROG_TO_NIR_H
 #define PROG_TO_NIR_H
 

src/mesa/program/program_parser.h

@@ -20,7 +20,9 @@
  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  * DEALINGS IN THE SOFTWARE.
  */
-#pragma once
+
+#ifndef PROGRAM_PARSER_H
+#define PROGRAM_PARSER_H
 
 #include "main/config.h"
 #include "program/prog_parameter.h"
@@ -288,3 +290,5 @@ extern int _mesa_parse_instruction_suffix(const struct asm_parser_state *state,
     const char *suffix, struct prog_instruction *inst);
 
 /*@}*/
+
+#endif /* PROGRAM_PARSER_H */