dlang.diff

diff --git a/src/default.c b/src/default.c
index fffff8b..f78c66b 100644
--- a/src/default.c
+++ b/src/default.c
@@ -48,7 +48,7 @@ static char default_suffixes[]
 .mod .sym .def .h .info .dvi .tex .texinfo .texi .txinfo \
 .w .ch .web .sh .elc .el .obj .exe .dll .lib";
 #else
-  = ".out .a .ln .o .c .cc .C .cpp .p .f .F .m .r .y .l .ym .yl .s .S \
+  = ".out .a .ln .o .c .cc .C .cpp .d .p .f .F .m .r .y .l .ym .yl .s .S \
 .mod .sym .def .h .info .dvi .tex .texinfo .texi .txinfo \
 .w .ch .web .sh .elc .el";
 #endif
@@ -279,6 +279,8 @@ static const char *default_suffix_rules[] =
     "$(LINK.C) $^ $(LOADLIBES) $(LDLIBS) -o $@",
     ".cpp",
     "$(LINK.cpp) $^ $(LOADLIBES) $(LDLIBS) -o $@",
+    ".d",
+    "$(LINK.d) $^ $(LOADLIBES) $(LDLIBS) -o $@",
     ".f",
     "$(LINK.f) $^ $(LOADLIBES) $(LDLIBS) -o $@",
     ".m",
@@ -310,6 +312,8 @@ static const char *default_suffix_rules[] =
     "$(COMPILE.C) $(OUTPUT_OPTION) $<",
     ".cpp.o",
     "$(COMPILE.cpp) $(OUTPUT_OPTION) $<",
+    ".d.o",
+    "$(COMPILE.d) $(OUTPUT_OPTION) $<",
     ".f.o",
     "$(COMPILE.f) $(OUTPUT_OPTION) $<",
     ".m.o",
@@ -546,6 +550,7 @@ static const char *default_variables[] =
     "COFLAGS", "",
 
     "CPP", "$(CC) -E",
+    "DC", "gdc",
 #ifdef  CRAY
     "CF77PPFLAGS", "-P",
     "CF77PP", "/lib/cpp",
@@ -623,6 +628,8 @@ static const char *default_variables[] =
     "LINK.C", "$(LINK.c)",
 #endif
     "LINK.cpp", "$(LINK.cc)",
+    "COMPILE.d", "$(DC) $(DFLAGS) $(TARGET_ARCH) -c",
+    "LINK.d", "$(DC) $(DFLAGS) $(LDFLAGS) $(TARGET_ARCH)",
     "YACC.y", "$(YACC) $(YFLAGS)",
     "LEX.l", "$(LEX) $(LFLAGS) -t",
     "YACC.m", "$(YACC) $(YFLAGS)",