include and whitespace clean-up in dos source files

src/dos/dosdma.c

@@ -9,9 +9,6 @@
  * file for more information.
  */
 
-#include "dosdma.h"
-#include "dosutil.h"
-
 #include <dos.h>
 #include <malloc.h>
 
@@ -19,6 +16,8 @@
 #include <sys/nearptr.h>
 #endif
 
+#include "dosdma.h"
+
 __dma_regs dma[8] = {
 /* *INDENT-OFF* */
 	{DMA_ADDR_0, DMA_PAGE_0, DMA_SIZE_0,

src/dos/dosirq.c

@@ -9,17 +9,18 @@
  * file for more information.
  */
 
-#include "dosirq.h"
-#include "dosutil.h"
-
 #include <dos.h>
 #include <malloc.h>
 #include <string.h>
-
 #ifdef __DJGPP__
 #include <dpmi.h>
 #include <go32.h>
 #include <sys/nearptr.h>
+#endif
+
+#include "dosirq.h"
+
+#if defined(__DJGPP__)
 
 unsigned int __irq_stack_size = 0x4000;
 unsigned int __irq_stack_count = 1;
@@ -65,8 +66,6 @@ static void __int_stub_template (void)
 /* *INDENT-ON* */
 }
 
-#include <stdio.h>
-
 static int _allocate_iret_wrapper(_go32_dpmi_seginfo * info)
 {
 	unsigned char *irqtpl = (unsigned char *)__int_stub_template;
@@ -284,8 +283,7 @@ static volatile unsigned int __irq_count[16];
 #define DECLARE_IRQ_HANDLER(irqno)					\
 static void INTERRUPT_ATTRIBUTES NO_REORDER __irq##irqno##_handler ()	\
 {									\
-  if (irq_check (__irqs [irqno]) && __irq_confirm (irqno))	\
+  if (irq_check (__irqs [irqno]) && __irq_confirm (irqno)) {		\
-  {															\
     __irq_count [irqno]++;						\
     __irq_mask |= (1 << irqno);						\
   }									\

src/dos/dossb.h

@@ -15,7 +15,6 @@
 
 #include "dosdma.h"
 #include "dosirq.h"
-#include "dosutil.h"
 
 #define SB_FM_LEFT_STATUS		(sb.port + 0x00)	/* (r) Left FM status */
 #define SB_FM_LEFT_REGSEL		(sb.port + 0x00)	/* (w) Left FM register select */