diff --git a/mi/miarc.c b/mi/miarc.c
index 17b7891bf..69c5acdbc 100644
--- a/mi/miarc.c
+++ b/mi/miarc.c
@@ -100,37 +100,16 @@ double	cbrt(double);
 #undef max
 #undef min
 
-#if defined (__GNUC__) && !defined (__STRICT_ANSI__)
-#define USE_INLINE
-#endif
-
-#ifdef USE_INLINE
-inline static int max (const int x, const int y)
+_X_INLINE static int max (const int x, const int y)
 {
 	return x>y? x:y;
 }
 
-inline static int min (const int x, const int y)
+_X_INLINE static int min (const int x, const int y)
 {
 	return x<y? x:y;
 }
 
-#else
-
-static int
-max (int x, int y)
-{
-	return x>y? x:y;
-}
-
-static int
-min (int x, int y)
-{
-	return x<y? x:y;
-}
-
-#endif
-
 struct bound {
 	double	min, max;
 };
diff --git a/mi/miregion.c b/mi/miregion.c
index e980ad18e..0eab6623a 100644
--- a/mi/miregion.c
+++ b/mi/miregion.c
@@ -81,16 +81,11 @@ Equipment Corporation.
 
 #include "regionstr.h"
 #include <X11/Xprotostr.h>
+#include <X11/Xfuncproto.h>
 #include "gc.h"
 #include "mi.h"
 #include "mispans.h"
 
-#if defined (__GNUC__) && !defined (NO_INLINES)
-#define INLINE	__inline
-#else
-#define INLINE
-#endif
-
 #undef assert
 #ifdef DEBUG
 #define assert(expr) {if (!(expr)) \
@@ -506,7 +501,7 @@ miRegionCopy(dst, src)
  *
  *-----------------------------------------------------------------------
  */
-INLINE static int
+_X_INLINE static int
 miCoalesce (
     RegionPtr	pReg,	    	/* Region to coalesce		     */
     int	    	  	prevStart,  	/* Index of start of previous band   */
@@ -590,7 +585,7 @@ miCoalesce (
  *-----------------------------------------------------------------------
  */
 
-INLINE static Bool
+_X_INLINE static Bool
 miAppendNonO (
     RegionPtr	pReg,
     BoxPtr	r,