libobjc2: tweaks to build on Windows

GNUmakefile

@@ -52,7 +52,7 @@ ifeq ($(tdd), yes)
 libobjc_CPPFLAGS += -DTYPE_DEPENDENT_DISPATCH
 endif
 
-libobjc_LIBRARIES_DEPEND_UPON += -lpthread
+libobjc_LIBRARIES_DEPEND_UPON += -lpthread -ltoydispatch
 
 # Deprecated functions are only deprecated for external use, not for us because
 # we are special, precious, little flowers.
@@ -62,7 +62,7 @@ libobjc_CPPFLAGS += -D__OBJC_RUNTIME_INTERNAL__=1 -D_XOPEN_SOURCE=500
 # benefit from supporting platforms with no C99 compiler.
 libobjc_CFLAGS += -std=c99 -g -march=native -fexceptions -fno-inline
 libobjc_OBJCFLAGS += $(libobjc_CFLAGS)
-libobjc_LDFLAGS += -g -ltoydispatch
+libobjc_LDFLAGS += -g
 libobjc_LIB_DIRS += -L toydispatch/obj
 
 libobjc_CFLAGS +=  -O3

legacy_malloc.c

@@ -14,10 +14,17 @@ void *objc_atomic_malloc(size_t size)
 	return malloc(size);
 }
 
+#ifdef __MINGW32__
+void *objc_valloc(size_t size)
+{
+	return malloc(size);
+}
+#else
 void *objc_valloc(size_t size)
 {
 	return valloc(size);
 }
+#endif
 
 void *objc_realloc(void *mem, size_t size)
 {

properties.m

@@ -2,6 +2,15 @@
 #include <stdio.h>
 #include <unistd.h>
 
+#ifdef __MINGW32__
+#include <windows.h>
+static unsigned sleep(unsigned seconds)
+{
+	Sleep(seconds*1000);
+	return 0;
+}
+#endif
+
 // Subset of NSObject interface needed for properties.
 @interface NSObject {}
 - (id)retain;