diff --git a/reactos/include/reactos/wine/port.h b/reactos/include/reactos/wine/port.h
index e158cfdadd1..fd22b4ef69b 100644
--- a/reactos/include/reactos/wine/port.h
+++ b/reactos/include/reactos/wine/port.h
@@ -286,7 +286,7 @@ int strcasecmp(const char *str1, const char *str2);
 # endif
 #endif /* !defined(HAVE_STRCASECMP) */
 
-#ifndef HAVE_USLEEP
+#if !defined(HAVE_USLEEP) && !defined(__CYGWIN__)
 int usleep (unsigned int useconds);
 #endif /* !defined(HAVE_USLEEP) */
 
diff --git a/reactos/lib/ppcmmu/ppcmmu.mak b/reactos/lib/ppcmmu/ppcmmu.mak
index a439b71672f..ef9ffb5f1ec 100644
--- a/reactos/lib/ppcmmu/ppcmmu.mak
+++ b/reactos/lib/ppcmmu/ppcmmu.mak
@@ -2,32 +2,36 @@ O=$(INTERMEDIATE)/lib/ppcmmu
 S=lib/ppcmmu
 CC=powerpc-unknown-elf-gcc -I$T/include/reactos/ppcmmu
 AR=powerpc-unknown-elf-ar
+CFLAGS=-Iinclude/reactos/libs -Iinclude/crt -Iinclude/reactos -D__cdecl__=
 OBJCOPY=powerpc-unknown-elf-objcopy
 LDSCRIPT=-Wl,-T,$S/ldscript
 PPCMMU_TARGETS=$O/libppcmmu_code.a
 MMUOBJECT_OBJS=$O/devint.o $O/mmuobject.o $O/mmuutil_object.o $O/mmutest.o $O/gdblib.o
 
-$O/mmuutil_object.o: $S/mmuutil.c | $O
-	$(CC) -Iinclude/reactos/libs -g -c -o $@ $S/mmuutil.c
+mkdir_ppcmmu:
+	-mkdir -p $O
 
-$O/libppcmmu_code.a: $(MMUOBJECT_OBJS) | $O
+$O/mmuutil_object.o: $S/mmuutil.c | mkdir_ppcmmu
+	$(CC) $(CFLAGS) -g -c -o $@ $S/mmuutil.c
+
+$O/libppcmmu_code.a: $(MMUOBJECT_OBJS)
 	$(CC) -Wl,-N -nostartfiles -nostdlib -o $O/mmuobject -Ttext=0x10000 $(LDSCRIPT) -Wl,-u,mmumain -Wl,-u,data_miss_start -Wl,-u,data_miss_end $(MMUOBJECT_OBJS)
 	$(OBJCOPY) -O binary $O/mmuobject mmucode
 	$(OBJCOPY) -I binary -O elf32-powerpc -B powerpc:common mmucode $O/mmucode.o
 	mkdir -p `dirname $@`
 	$(AR) cr $@ $O/mmucode.o
 
-$O/gdblib.o: $S/gdblib.c | $O
-	$(CC) -Iinclude/reactos -Iinclude/reactos/libs -g -c -o $@ $S/gdblib.c
+$O/gdblib.o: $S/gdblib.c | mkdir_ppcmmu
+	$(CC) $(CFLAGS) -g -c -o $@ $S/gdblib.c
 
-$O/devint.o: $S/devint.s | $O
-	$(CC) -Iinclude/reactos -Iinclude/reactos/libs -g -c -o $@ $S/devint.s
+$O/devint.o: $S/devint.s | mkdir_ppcmmu
+	$(CC) $(CFLAGS) -g -c -o $@ $S/devint.s
 
-$O/mmuobject.o: $S/mmuobject.c $S/mmuobject.h | $O
-	$(CC) -Iinclude/reactos -Iinclude/reactos/libs -g -c -o $@ $S/mmuobject.c
+$O/mmuobject.o: $S/mmuobject.c $S/mmuobject.h | mkdir_ppcmmu
+	$(CC) $(CFLAGS) -g -c -o $@ $S/mmuobject.c
 
-$O/mmutest.o: $S/mmutest.c $S/mmuobject.h | $O
-	$(CC) -Iinclude/reactos/libs -g -c -o $@ $S/mmutest.c
+$O/mmutest.o: $S/mmutest.c $S/mmuobject.h | mkdir_ppcmmu
+	$(CC) $(CFLAGS) -g -c -o $@ $S/mmutest.c
 
 ppcmmuobject_clean:
 	rm -f $O/*.o $O/*.a mmucode $O/mmuobject
diff --git a/reactos/tools/ssprintf.cpp b/reactos/tools/ssprintf.cpp
index 5c8dc30ad22..17f23086177 100644
--- a/reactos/tools/ssprintf.cpp
+++ b/reactos/tools/ssprintf.cpp
@@ -37,7 +37,7 @@ inline int iswdigit ( wchar_t c )
 #endif
 #endif//WIN32
 
-#if defined(__FreeBSD__) || defined(__APPLE__)
+#if defined(__FreeBSD__) || defined(__APPLE__) || defined(__CYGWIN__)
 # define __isnan isnan
 # define __finite finite
 # define powl __builtin_powl
diff --git a/reactos/tools/ssprintf.h b/reactos/tools/ssprintf.h
index 64f5783ab59..d1ca48e82e0 100644
--- a/reactos/tools/ssprintf.h
+++ b/reactos/tools/ssprintf.h
@@ -19,6 +19,12 @@
 #include <string>
 #include <stdarg.h>
 
+#ifdef __CYGWIN__
+namespace std {
+	typedef basic_string<wchar_t> wstring;
+}
+#endif
+
 std::string ssprintf ( const char* fmt, ... );
 std::string ssvprintf ( const char* fmt, va_list args );
 
diff --git a/reactos/tools/xml.cpp b/reactos/tools/xml.cpp
index 650da1f0040..50562cf4fb9 100644
--- a/reactos/tools/xml.cpp
+++ b/reactos/tools/xml.cpp
@@ -99,7 +99,7 @@ filelen ( FILE* f )
 #ifdef WIN32
 	return _filelengthi64 ( _fileno(f) );
 #else
-# if defined(__FreeBSD__) || defined(__APPLE__)
+# if defined(__FreeBSD__) || defined(__APPLE__) || defined(__CYGWIN__)
 	struct stat file_stat;
 	if ( fstat(fileno(f), &file_stat) != 0 )
 # else