Force gcc to use -std=gnu99.

Author: MarcCote

frotz/Makefile

@@ -18,7 +18,7 @@ CFLAGS += -Wall -Wextra -std=gnu99 -fPIC -Werror=implicit-function-declaration
 # These are good for regular use.
 # OPTS = -O2 -fomit-frame-pointer -falign-functions=2 -falign-loops=2 -falign-jumps=2 -fPIC
 # OPTS = -O3 -fomit-frame-pointer -falign-functions=2 -falign-loops=2 -falign-jumps=2 -fPIC
-OPTS = -O3 -fPIC
+OPTS = -O3 -std=gnu99 -fPIC
 # These are handy for debugging.
 # OPTS = $(CFLAGS) -g -fPIC
 # These are handy for profiling

frotz/src/common/frotz.h

@@ -692,7 +692,7 @@ void 	z_window_style (void);
 
 void	init_err (void);
 void	runtime_error (int);
- 
+
 /* Error codes */
 #define ERR_TEXT_BUF_OVF 1	/* Text buffer overflow */
 #define ERR_STORE_RANGE 2	/* Store out of dynamic memory */
@@ -730,7 +730,7 @@ void	runtime_error (int);
 #define ERR_REMOVE_OBJECT_0 31	/* @remove_object called with object 0 */
 #define ERR_GET_NEXT_PROP_0 32	/* @get_next_prop called with object 0 */
 #define ERR_NUM_ERRORS (32)
- 
+
 /* There are four error reporting modes: never report errors;
   report only the first time a given error type occurs; report
   every time an error occurs; or treat all errors as fatal