diff --git a/common.h b/common.h
index 8b1df6b..5d52981 100644
--- a/common.h
+++ b/common.h
@@ -49,7 +49,7 @@
 // Huge thanks to pollux for the heads up on using native file I/O
 // functions on PSP for vastly improved memstick performance.
 
-#ifdef PSP_BUILD
+#ifdef PSP
   #define fastcall
 
   #include <pspkernel.h>
@@ -90,12 +90,6 @@
   #include <stdio.h>
 #else
 
-#define GBA_SCREEN_WIDTH  (240)
-#define GBA_SCREEN_HEIGHT (160)
-#define GBA_SCREEN_PITCH  (240)
-
-void switch_to_main_thread(void);
-
   typedef unsigned char u8;
   typedef signed char s8;
   typedef unsigned short int u16;
@@ -133,6 +127,12 @@ void switch_to_main_thread(void);
 
 #endif
 
+#define GBA_SCREEN_WIDTH  (240)
+#define GBA_SCREEN_HEIGHT (160)
+#define GBA_SCREEN_PITCH  (240)
+
+void switch_to_main_thread(void);
+
 // These must be variables, not constants.
 
 #define file_read_variable(filename_tag, variable)                            \
diff --git a/cpu.h b/cpu.h
index 3ed9f07..2659b10 100644
--- a/cpu.h
+++ b/cpu.h
@@ -119,7 +119,7 @@ s32 translate_block_arm(u32 pc, translation_region_type translation_region,
 s32 translate_block_thumb(u32 pc, translation_region_type translation_region,
  u32 smc_enable);
 
-#if defined(PSP_BUILD)
+#if defined(PSP)
 
 #define ROM_TRANSLATION_CACHE_SIZE (1024 * 512 * 4)
 #define RAM_TRANSLATION_CACHE_SIZE (1024 * 384)
diff --git a/gba_memory.c b/gba_memory.c
index 15ad808..970fbee 100644
--- a/gba_memory.c
+++ b/gba_memory.c
@@ -343,7 +343,7 @@ gamepak_swap_entry_type *gamepak_memory_map;
 // This is global so that it can be kept open for large ROMs to swap
 // pages from, so there's no slowdown with opening and closing the file
 // a lot.
-#ifdef PSP_BUILD
+#ifdef PSP
 
 file_tag_type gamepak_file_large = -1;
 
@@ -2391,9 +2391,7 @@ static s32 load_game_config(char *gamepak_title, char *gamepak_code, char *gamep
     fclose(config_file);
   }
 
-#ifndef PSP_BUILD
   printf("game config missing\n");
-#endif
   return -1;
 }
 
@@ -2418,7 +2416,7 @@ static s32 load_gamepak_raw(const char *name)
 
       file_close(gamepak_file);
 
-#ifdef PSP_BUILD
+#ifdef PSP
       gamepak_file_large = -1;
 #else
       gamepak_file_large = NULL;
diff --git a/main.c b/main.c
index bc8a408..0f9bb88 100644
--- a/main.c
+++ b/main.c
@@ -280,13 +280,15 @@ void reset_gba(void)
   reset_sound();
 }
 
-u32 file_length(const char *dummy, FILE *fp)
+#ifdef PSP
+u32 file_length(const char *filename, s32 dummy)
 {
-#ifdef PSP_BUILD
   SceIoStat stats;
   sceIoGetstat(filename, &stats);
   return stats.st_size;
 #else
+u32 file_length(const char *dummy, FILE *fp)
+{
   u32 length;
 
   fseek(fp, 0, SEEK_END);
diff --git a/main.h b/main.h
index f34d7db..1f730c0 100644
--- a/main.h
+++ b/main.h
@@ -83,8 +83,8 @@ void main_write_savestate(void);
 void main_read_savestate(void);
 
 
-#ifdef PSP_BUILD
-u32 file_length(char *filename, s32 dummy);
+#ifdef PSP
+u32 file_length(const char *filename, s32 dummy);
 #else
 u32 file_length(const char *dummy, FILE *fp);
 #endif