From 183aea64d3d45bfed30f07079a0c68fa7165bc0b Mon Sep 17 00:00:00 2001
From: Brian Paul <brian.paul@tungstengraphics.com>
Date: Sat, 29 Mar 2003 16:14:01 +0000
Subject: DOS updates from Daniel Borca

---
 src/glut/dos/Makefile.DJ      | 21 +++++++++++----------
 src/glut/dos/PC_HW/pc_keyb.c  |  5 +++--
 src/glut/dos/PC_HW/pc_mouse.c |  1 -
 3 files changed, 14 insertions(+), 13 deletions(-)

(limited to 'src/glut/dos')

diff --git a/src/glut/dos/Makefile.DJ b/src/glut/dos/Makefile.DJ
index 2ae88520dc..52c347cda3 100644
--- a/src/glut/dos/Makefile.DJ
+++ b/src/glut/dos/Makefile.DJ
@@ -59,11 +59,13 @@ CFLAGS += -I- -I$(TOP)/include -I. -I$(MKGLUT) -IPC_HW
 AR = ar
 ARFLAGS = rus
 
-ifneq ($(wildcard $(DJDIR)/lib/dxe3.ld),)
-DXE3GEN = $(wildcard $(addsuffix /dxe3gen.exe,$(subst ;, ,$(PATH))))
-endif
+HAVEDXE3 = $(wildcard $(DJDIR)/bin/dxe3gen.exe)
 
-RM = del
+ifeq ($(wildcard $(addsuffix /rm.exe,$(subst ;, ,$(PATH)))),)
+UNLINK = del $(subst /,\,$(1))
+else
+UNLINK = $(RM) $(1)
+endif
 
 CORE_SOURCES = \
 	callback.c \
@@ -118,16 +120,15 @@ $(LIBDIR)/$(GLUT_LIB): $(OBJECTS)
 	$(AR) $(ARFLAGS) $(LIBDIR)/$(GLUT_LIB) $(OBJECTS)
 
 $(LIBDIR)/$(GLUT_DXE) $(LIBDIR)/$(GLUT_IMP): $(OBJECTS)
-ifeq ($(DXE3GEN),)
-	$(warning Missing DXE3GEN and/or DXE3.LD! You must have DXE3GEN)
-	$(warning somewhere in PATH, and DXE3.LD in DJGPP/LIB directory.)
+ifeq ($(HAVEDXE3),)
+	$(warning Missing DXE3 package... Skipping $(GLUT_DXE))
 else
 	-dxe3gen -o $(LIBDIR)/$(GLUT_DXE) -I $(LIBDIR)/$(GLUT_IMP) -D "MesaGLUT DJGPP" -E _glut -P gl.dxe -P glu.dxe -U $(OBJECTS)
 endif
 
 clean:
-	-$(RM) $(subst /,\,*.o)
-	-$(RM) $(subst /,\,PC_HW/*.o)
-	-$(RM) $(subst /,\,$(MKGLUT)/*.o)
+	-$(call UNLINK,*.o)
+	-$(call UNLINK,PC_HW/*.o)
+	-$(call UNLINK,$(MKGLUT)/*.o)
 
 -include depend
diff --git a/src/glut/dos/PC_HW/pc_keyb.c b/src/glut/dos/PC_HW/pc_keyb.c
index 6475be3508..ec509c2ace 100644
--- a/src/glut/dos/PC_HW/pc_keyb.c
+++ b/src/glut/dos/PC_HW/pc_keyb.c
@@ -420,8 +420,9 @@ int pc_readkey (void)
  if (keyboard_installed) {
     int key;
 
-    do {
-    } while (key_buffer.start==key_buffer.end);
+    while (key_buffer.start==key_buffer.end) {
+          __dpmi_yield();
+    }
 
     DISABLE();
     key = key_buffer.key[key_buffer.start++];
diff --git a/src/glut/dos/PC_HW/pc_mouse.c b/src/glut/dos/PC_HW/pc_mouse.c
index 1740bfbac4..cf8fb668ba 100644
--- a/src/glut/dos/PC_HW/pc_mouse.c
+++ b/src/glut/dos/PC_HW/pc_mouse.c
@@ -274,6 +274,5 @@ _mouse_wrap:					\n\
 		movl	%esi, %esp		\n\
 		popl	%es			\n\
 		iret				\n\
-		.balign	4			\n\
 		.global	_mouse_wrap_end		\n\
 _mouse_wrap_end:.long	0, 0");
-- 
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