Upgrade to libxml 2.9.2 and libxslt 1.1.28

third_party/libxslt/libexslt/Makefile.am

Index: third_party/libxslt/libexslt/Makefile.am
diff --git a/third_party/libxslt/libexslt/Makefile.am b/third_party/libxslt/libexslt/Makefile.am
new file mode 100644
index 0000000000000000000000000000000000000000..0e92e51b6d7eb306229b66bca4d0c074f6d3612d
--- /dev/null
+++ b/third_party/libxslt/libexslt/Makefile.am
@@ -0,0 +1,34 @@
+AM_CPPFLAGS = -I$(top_srcdir) -I$(top_srcdir)/libxslt -I$(top_srcdir)/libexslt \
+	      -I$(top_builddir) -I$(top_builddir)/libxslt \
+	      -I$(top_builddir)/libexslt
+
+AM_CFLAGS = $(LIBGCRYPT_CFLAGS) $(LIBXML_CFLAGS)
+
+lib_LTLIBRARIES = libexslt.la
+
+exsltincdir = $(includedir)/libexslt
+
+exsltinc_HEADERS =                      \
+	exslt.h				\
+	exsltconfig.h			\
+	exsltexports.h
+
+libexslt_la_SOURCES =                   \
+	exslt.c				\
+	common.c			\
+	crypto.c			\
+	math.c				\
+	sets.c				\
+	functions.c			\
+	strings.c			\
+	date.c				\
+	saxon.c				\
+	libexslt.h			\
+	dynamic.c
+
+libexslt_la_LIBADD = $(top_builddir)/libxslt/libxslt.la $(EXTRA_LIBS) $(LIBGCRYPT_LIBS)
+libexslt_la_LDFLAGS = $(WIN32_EXTRA_LDFLAGS) -version-info $(LIBEXSLT_VERSION_INFO)
+
+man_MANS = libexslt.3
+
+EXTRA_DIST = $(man_MANS)