diff --git a/dll/3rdparty/libxslt/Makefile.am b/dll/3rdparty/libxslt/Makefile.am
index 22dbdefac47..2c417d0be23 100644
--- a/dll/3rdparty/libxslt/Makefile.am
+++ b/dll/3rdparty/libxslt/Makefile.am
@@ -1,78 +1,78 @@
-AM_CPPFLAGS = -I$(top_srcdir) -I$(top_srcdir)/libxslt
+SUBDIRS = \
+	libxslt \
+	libexslt \
+	xsltproc \
+	doc \
+	$(PYTHON_SUBDIR) \
+	tests
 
-AM_CFLAGS = $(LIBXML_CFLAGS)
+DIST_SUBDIRS = libxslt libexslt xsltproc python doc tests
 
-lib_LTLIBRARIES = libxslt.la
+confexecdir=$(libdir)
+confexec_DATA = xsltConf.sh
 
-xsltincdir = $(includedir)/libxslt
+bin_SCRIPTS = xslt-config
 
-xsltinc_HEADERS = 			\
-	xslt.h				\
-	xsltutils.h			\
-	pattern.h			\
-	templates.h			\
-	variables.h			\
-	keys.h				\
-	numbersInternals.h		\
-	extensions.h			\
-	extra.h				\
-	functions.h			\
-	namespaces.h			\
-	imports.h			\
-	attributes.h			\
-	documents.h			\
-	preproc.h			\
-	transform.h			\
-	security.h			\
-	xsltInternals.h			\
-	xsltexports.h			\
-	xsltlocale.h
-nodist_xsltinc_HEADERS = 		\
-	xsltconfig.h
+dist-hook: cleanup libxslt.spec
+	touch $(distdir)/doc/*.xml
+	touch $(distdir)/doc/EXSLT/*.xml
+	touch $(distdir)/libxslt/*.syms
+	(cd $(srcdir) ; tar -cf - --exclude CVS --exclude .svn win32 vms examples) | (cd $(distdir); tar xf -)
 
-libxslt_la_SOURCES = 			\
-	attrvt.c			\
-	xslt.c				\
-	xsltlocale.c			\
-	xsltutils.c			\
-	pattern.c			\
-	templates.c			\
-	variables.c			\
-	keys.c				\
-	numbers.c			\
-	extensions.c			\
-	extra.c				\
-	functions.c			\
-	namespaces.c			\
-	imports.c			\
-	attributes.c			\
-	documents.c			\
-	preproc.c			\
-	transform.c			\
-	security.c			\
-	win32config.h			\
-	xsltwin32config.h.in		\
-	libxslt.h
-nodist_libxslt_la_SOURCES =		\
-	xsltwin32config.h
+CVS_EXTRA_DIST =
 
-if USE_VERSION_SCRIPT
-LIBXSLT_VERSION_SCRIPT = $(VERSION_SCRIPT_FLAGS)$(srcdir)/libxslt.syms
-else
-LIBXSLT_VERSION_SCRIPT =
-endif
+EXTRA_DIST = xsltConf.sh.in xslt-config.in libxslt.spec libxslt.spec.in \
+             FEATURES TODO Copyright libxslt.m4 \
+	     win32/libxslt/libxslt.def win32/libxslt/libxslt.dsw \
+	     win32/libxslt/libxslt_so.dsp win32/libxslt/xsltproc.dsp \
+	     $(CVS_EXTRA_DIST)
 
-libxslt_la_LIBADD = $(LIBXML_LIBS) $(EXTRA_LIBS) $(M_LIBS)
-libxslt_la_LDFLAGS =					\
-		$(LIBXSLT_VERSION_SCRIPT)		\
-		-version-info $(LIBXSLT_VERSION_INFO)
+## We create xsltConf.sh here and not from configure because we want
+## to get the paths expanded correctly.  Macros like srcdir are given
+## the value NONE in configure if the user doesn't specify them (this
+## is an autoconf feature, not a bug).
 
-man_MANS = libxslt.3
+xsltConf.sh: xsltConf.sh.in Makefile
+## Use sed and then mv to avoid problems if the user interrupts.
+	sed -e 's?\@XSLT_LIBDIR\@?$(XSLT_LIBDIR)?g' \
+	    -e 's?\@XSLT_INCLUDEDIR\@?$(XSLT_INCLUDEDIR)?g' \
+	    -e 's?\@VERSION\@?$(VERSION)?g' \
+	    -e 's?\@XSLT_LIBS\@?$(XSLT_LIBS) $(EXTRA_LIBS)?g' \
+	    -e 's?\@XSLT_PRIVATE_LIBS\@?$(XSLT_PRIVATE_LIBS)?g' \
+	       < $(srcdir)/xsltConf.sh.in > xsltConf.tmp \
+	&& mv xsltConf.tmp xsltConf.sh
 
-EXTRA_DIST = $(man_MANS) trio.h triodef.h libxslt.syms
+CLEANFILES = xsltConf.sh
 
-xsltproc: all
-	@(cd ../xsltproc ; $(MAKE))
+check-local: tests
+
+dummy:
+
+tests: dummy
+	@echo '## Running the regression test suite'
+	@(cd tests ; $(MAKE) -s tests)
+	@(cd xsltproc ; $(MAKE) -s tests)
+	@(if [ "$(PYTHON_SUBDIR)" != "" ] ; then cd python ; $(MAKE) -s tests ; fi)
+
+valgrind:
+	@echo '## Running the regression tests under Valgrind'
+	@echo '## Go get a cup of coffee it is gonna take a while ...'
+	@(cd tests ; $(MAKE) CHECKER='libtool --mode=execute valgrind -q --leak-check=full' tests)
+	@(cd xsltproc ; $(MAKE) CHECKER='libtool --mode=execute valgrind -q --leak-check=full' tests)
+
+cleanup:
+	-@(find . -name .\#\* -exec rm {} \;)
+
+cleantar:
+	@(rm -f libxslt*.tar.gz)
+
+rpm: cleantar
+	@(unset CDPATH ; $(MAKE) dist && rpmbuild -ta $(distdir).tar.gz)
+
+
+pkgconfigdir=$(libdir)/pkgconfig
+pkgconfig_DATA = libxslt.pc libexslt.pc
+
+m4datadir = $(datadir)/aclocal
+m4data_DATA = libxslt.m4
 
-install-exec-hook:
-	$(MKDIR_P) "$(DESTDIR)$(libdir)/libxslt-plugins"
diff --git a/dll/3rdparty/libxslt/security.c b/dll/3rdparty/libxslt/security.c
index 641677ced66..b54b4543f19 100644
--- a/dll/3rdparty/libxslt/security.c
+++ b/dll/3rdparty/libxslt/security.c
@@ -12,7 +12,7 @@
 #include <sys/stat.h>
 #endif
 
-#if defined(WIN32) && !defined(__CYGWIN__)
+#if defined(_WIN32) && !defined(__CYGWIN__)
 #ifndef INVALID_FILE_ATTRIBUTES
 #define INVALID_FILE_ATTRIBUTES ((DWORD)-1)
 #endif
diff --git a/dll/3rdparty/libxslt/win32config.h b/dll/3rdparty/libxslt/win32config.h
index 6573bb4024b..8fe704275a3 100644
--- a/dll/3rdparty/libxslt/win32config.h
+++ b/dll/3rdparty/libxslt/win32config.h
@@ -77,15 +77,7 @@ static int isnan (double d) {
 #endif /* _MSC_VER */
 
 #include <direct.h>
-#ifdef __REACTOS__
-#if defined(_MSC_VER) || defined(__MINGW32__)
-#define mkdir(p,m) _mkdir(p)
-#define snprintf _snprintf
-#if _MSC_VER < 1500
-#define vsnprintf(b,c,f,a) _vsnprintf(b,c,f,a)
-#endif
-#endif
-#else /* __REACTOS__ */
+
 /* snprintf emulation taken from http://stackoverflow.com/a/8712996/1956010 */
 #if defined(_MSC_VER) && _MSC_VER < 1900
 
@@ -120,7 +112,6 @@ __inline int c99_snprintf(char *outBuf, size_t size, const char *format, ...)
 }
 
 #endif /* defined(_MSC_VER) && _MSC_VER < 1900 */
-#endif /* __REACTOS__ */
 
 #define HAVE_SYS_STAT_H
 #define HAVE__STAT
diff --git a/dll/3rdparty/libxslt/xsltwin32config.h b/dll/3rdparty/libxslt/xsltwin32config.h
index fe7c7fc3410..8085bc2fa82 100644
--- a/dll/3rdparty/libxslt/xsltwin32config.h
+++ b/dll/3rdparty/libxslt/xsltwin32config.h
@@ -62,7 +62,7 @@ extern "C" {
  *
  * Whether module support is configured into libxslt
  */
-#if 1
+#if 0
 #ifndef WITH_MODULES
 #define WITH_MODULES
 #endif
diff --git a/sdk/include/reactos/libs/libxslt/libxslt.h b/sdk/include/reactos/libs/libxslt/libxslt.h
index 1265c04b719..5e98158e91b 100644
--- a/sdk/include/reactos/libs/libxslt/libxslt.h
+++ b/sdk/include/reactos/libs/libxslt/libxslt.h
@@ -27,12 +27,10 @@
 #endif
 #endif
 
-#ifndef __REACTOS__
 #if defined(_MSC_VER) || defined(__MINGW32__)
 #include <io.h>
 #include <direct.h>
 #define mkdir(p,m) _mkdir(p)
 #endif
-#endif /* __REACTOS__ */
 
 #endif /* ! __XSLT_LIBXSLT_H__ */
diff --git a/sdk/include/reactos/libs/libxslt/xsltexports.h b/sdk/include/reactos/libs/libxslt/xsltexports.h
index aac59e1d7a3..ecce7305f9c 100644
--- a/sdk/include/reactos/libs/libxslt/xsltexports.h
+++ b/sdk/include/reactos/libs/libxslt/xsltexports.h
@@ -51,11 +51,11 @@
   #undef XSLTCALL
   #if defined(IN_LIBXSLT) && !defined(LIBXSLT_STATIC)
     #define XSLTPUBFUN __declspec(dllexport)
-    #ifndef __clang__
-        #define XSLTPUBVAR __declspec(dllexport)
+    #if defined(__REACTOS__) && defined(__clang__)
+    #define XSLTPUBVAR __declspec(dllexport) extern
     #else
-        #define XSLTPUBVAR __declspec(dllexport) extern
-    #endif
+    #define XSLTPUBVAR __declspec(dllexport)
+    #endif /* __REACTOS__ && __clang__ */
   #else
     #define XSLTPUBFUN
     #if !defined(LIBXSLT_STATIC)