diff --git a/expat/CMakeLists.txt b/expat/CMakeLists.txt
index 1e89e286..951df0ed 100644
--- a/expat/CMakeLists.txt
+++ b/expat/CMakeLists.txt
@@ -237,7 +237,6 @@ macro(expat_install)
 endmacro()
 
 configure_file(expat_config.h.cmake "${CMAKE_CURRENT_BINARY_DIR}/expat_config.h")
-add_definitions(-DHAVE_EXPAT_CONFIG_H)
 expat_install(FILES "${CMAKE_CURRENT_BINARY_DIR}/expat_config.h" DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
 
 
diff --git a/expat/configure.ac b/expat/configure.ac
index 9a6858e7..80964be2 100644
--- a/expat/configure.ac
+++ b/expat/configure.ac
@@ -52,7 +52,6 @@ LIBCURRENT=8   # sync
 LIBREVISION=0  # with
 LIBAGE=7       # CMakeLists.txt!
 
-AX_APPEND_FLAG([-DHAVE_EXPAT_CONFIG_H], [AM_CPPFLAGS])
 AC_CONFIG_HEADERS([expat_config.h])
 
 AM_PROG_AR
diff --git a/expat/lib/winconfig.h b/expat/lib/winconfig.h
index 562a4a82..e0b71ffb 100644
--- a/expat/lib/winconfig.h
+++ b/expat/lib/winconfig.h
@@ -40,17 +40,4 @@
 #include <memory.h>
 #include <string.h>
 
-#if defined(HAVE_EXPAT_CONFIG_H) /* e.g. MinGW */
-#  include <expat_config.h>
-#else /* !defined(HAVE_EXPAT_CONFIG_H) */
-
-#  define XML_NS 1
-#  define XML_DTD 1
-#  define XML_CONTEXT_BYTES 1024
-
-/* we will assume all Windows platforms are little endian */
-#  define BYTEORDER 1234
-
-#endif /* !defined(HAVE_EXPAT_CONFIG_H) */
-
 #endif /* ndef WINCONFIG_H */
diff --git a/expat/lib/xmlparse.c b/expat/lib/xmlparse.c
index f598936d..978eae21 100644
--- a/expat/lib/xmlparse.c
+++ b/expat/lib/xmlparse.c
@@ -63,9 +63,9 @@
 
 #ifdef _WIN32
 #  include "winconfig.h"
-#elif defined(HAVE_EXPAT_CONFIG_H)
-#  include <expat_config.h>
-#endif /* ndef _WIN32 */
+#endif
+
+#include <expat_config.h>
 
 #include "ascii.h"
 #include "expat.h"
diff --git a/expat/lib/xmlrole.c b/expat/lib/xmlrole.c
index 3b676a41..0f9b8d39 100644
--- a/expat/lib/xmlrole.c
+++ b/expat/lib/xmlrole.c
@@ -34,11 +34,9 @@
 
 #ifdef _WIN32
 #  include "winconfig.h"
-#else
-#  ifdef HAVE_EXPAT_CONFIG_H
-#    include <expat_config.h>
-#  endif
-#endif /* ndef _WIN32 */
+#endif
+
+#include <expat_config.h>
 
 #include "expat_external.h"
 #include "internal.h"
diff --git a/expat/lib/xmltok.c b/expat/lib/xmltok.c
index 58dce909..d9474240 100644
--- a/expat/lib/xmltok.c
+++ b/expat/lib/xmltok.c
@@ -36,11 +36,9 @@
 
 #ifdef _WIN32
 #  include "winconfig.h"
-#else
-#  ifdef HAVE_EXPAT_CONFIG_H
-#    include <expat_config.h>
-#  endif
-#endif /* ndef _WIN32 */
+#endif
+
+#include <expat_config.h>
 
 #include "expat_external.h"
 #include "internal.h"
diff --git a/expat/tests/chardata.c b/expat/tests/chardata.c
index 75a50166..99b3d8af 100644
--- a/expat/tests/chardata.c
+++ b/expat/tests/chardata.c
@@ -30,9 +30,7 @@
    USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
 
-#ifdef HAVE_EXPAT_CONFIG_H
-#  include <expat_config.h>
-#endif
+#include <expat_config.h>
 #include "minicheck.h"
 
 #include <assert.h>
diff --git a/expat/tests/runtests.c b/expat/tests/runtests.c
index 91ab4f21..90245607 100644
--- a/expat/tests/runtests.c
+++ b/expat/tests/runtests.c
@@ -34,9 +34,7 @@
 #  undef NDEBUG /* because test suite relies on assert(...) at the moment */
 #endif
 
-#ifdef HAVE_EXPAT_CONFIG_H
-#  include <expat_config.h>
-#endif
+#include <expat_config.h>
 
 #include <assert.h>
 #include <stdlib.h>
diff --git a/expat/tests/structdata.c b/expat/tests/structdata.c
index e81b7b18..4cdd35f3 100644
--- a/expat/tests/structdata.c
+++ b/expat/tests/structdata.c
@@ -30,9 +30,7 @@
    USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
 
-#ifdef HAVE_EXPAT_CONFIG_H
-#  include "expat_config.h"
-#endif
+#include "expat_config.h"
 
 #include <assert.h>
 #include <stdlib.h>
diff --git a/expat/xmlwf/xmlfile.c b/expat/xmlwf/xmlfile.c
index e3d22c57..26391e92 100644
--- a/expat/xmlwf/xmlfile.c
+++ b/expat/xmlwf/xmlfile.c
@@ -38,9 +38,9 @@
 
 #ifdef _WIN32
 #  include "winconfig.h"
-#elif defined(HAVE_EXPAT_CONFIG_H)
-#  include <expat_config.h>
-#endif /* ndef _WIN32 */
+#endif
+
+#include <expat_config.h>
 
 #include "expat.h"
 #include "internal.h" /* for UNUSED_P only */