Make c++11 value default for xsd --std option

Also add support for c++14, c++17, c++20, and c++23 values and drop passing
--std option in tests and examples.

36 files changed, 39 insertions, 39 deletions

diff --git a/xsd-examples/cxx/parser/generated/buildfile b/xsd-examples/cxx/parser/generated/buildfile
index 3c2a0ba..85aded9 100644
--- a/xsd-examples/cxx/parser/generated/buildfile
+++ b/xsd-examples/cxx/parser/generated/buildfile
@@ -17,7 +17,7 @@ exe{driver}: xml{library}: test.input = true
  {hxx     cxx}{library-pimpl}                      \
  {        cxx}{library-driver}>: xsd{library} $xsd
 {{
-  $xsd cxx-parser --std c++11    \
+  $xsd cxx-parser                \
        --generate-inline         \
        --skel-file-suffix -pskel \
        --generate-print-impl     \
diff --git a/xsd-examples/cxx/parser/hello/buildfile b/xsd-examples/cxx/parser/hello/buildfile
index 4148dd3..c136334 100644
--- a/xsd-examples/cxx/parser/hello/buildfile
+++ b/xsd-examples/cxx/parser/hello/buildfile
@@ -12,7 +12,7 @@ exe{driver}: xml{hello}: test.input = true
 
 <{hxx ixx cxx}{hello-pskel}>: xsd{hello} $xsd
 {{
-  $xsd cxx-parser --std c++11    \
+  $xsd cxx-parser                \
        --generate-inline         \
        --skel-file-suffix -pskel \
        --output-dir $out_base    \
diff --git a/xsd-examples/cxx/parser/library/buildfile b/xsd-examples/cxx/parser/library/buildfile
index 13a3e1e..2d463e5 100644
--- a/xsd-examples/cxx/parser/library/buildfile
+++ b/xsd-examples/cxx/parser/library/buildfile
@@ -12,7 +12,7 @@ exe{driver}: xml{library}: test.input = true
 
 <{hxx ixx cxx}{library-pskel}>: xsd{library} map{library} $xsd
 {{
-  $xsd cxx-parser --std c++11    \
+  $xsd cxx-parser                \
        --generate-inline         \
        --skel-file-suffix -pskel \
        --type-map $path($<[1])   \
diff --git a/xsd-examples/cxx/parser/mixed/buildfile b/xsd-examples/cxx/parser/mixed/buildfile
index 9d3a629..103d94b 100644
--- a/xsd-examples/cxx/parser/mixed/buildfile
+++ b/xsd-examples/cxx/parser/mixed/buildfile
@@ -12,7 +12,7 @@ exe{driver}: xml{text}: test.input = true
 
 <{hxx ixx cxx}{text-pskel}>: xsd{text} map{text} $xsd
 {{
-  $xsd cxx-parser --std c++11    \
+  $xsd cxx-parser                \
        --generate-inline         \
        --skel-file-suffix -pskel \
        --type-map $path($<[1])   \
diff --git a/xsd-examples/cxx/parser/mixin/buildfile b/xsd-examples/cxx/parser/mixin/buildfile
index 279ae39..7b6cee2 100644
--- a/xsd-examples/cxx/parser/mixin/buildfile
+++ b/xsd-examples/cxx/parser/mixin/buildfile
@@ -12,7 +12,7 @@ exe{driver}: xml{instance}: test.input = true
 
 <{hxx ixx cxx}{schema-pskel}>: xsd{schema} map{schema} $xsd
 {{
-  $xsd cxx-parser --std c++11    \
+  $xsd cxx-parser                \
        --generate-inline         \
        --skel-file-suffix -pskel \
        --type-map $path($<[1])   \
diff --git a/xsd-examples/cxx/parser/multiroot/buildfile b/xsd-examples/cxx/parser/multiroot/buildfile
index d582e19..4c97ca1 100644
--- a/xsd-examples/cxx/parser/multiroot/buildfile
+++ b/xsd-examples/cxx/parser/multiroot/buildfile
@@ -11,7 +11,7 @@ exe{driver}: {hxx cxx}{* -protocol-pskel} {hxx ixx cxx}{protocol-pskel} $libs \
 
 <{hxx ixx cxx}{protocol-pskel}>: xsd{protocol} map{protocol} $xsd
 {{
-  $xsd cxx-parser --std c++11    \
+  $xsd cxx-parser                \
        --generate-inline         \
        --skel-file-suffix -pskel \
        --type-map $path($<[1])   \
diff --git a/xsd-examples/cxx/parser/performance/buildfile b/xsd-examples/cxx/parser/performance/buildfile
index 094dd7b..1d0edd7 100644
--- a/xsd-examples/cxx/parser/performance/buildfile
+++ b/xsd-examples/cxx/parser/performance/buildfile
@@ -33,7 +33,7 @@ for p: 'xerces' 'expat'
     parser = $p
   }
   {{
-    $xsd cxx-parser --std c++11            \
+    $xsd cxx-parser                        \
          --generate-inline                 \
          --skel-file-suffix -$parser-pskel \
          --xml-parser $parser              \
diff --git a/xsd-examples/cxx/parser/polymorphism/buildfile b/xsd-examples/cxx/parser/polymorphism/buildfile
index a08dfd5..2fad7dd 100644
--- a/xsd-examples/cxx/parser/polymorphism/buildfile
+++ b/xsd-examples/cxx/parser/polymorphism/buildfile
@@ -12,7 +12,7 @@ exe{driver}: xml{supermen}: test.input = true
 
 <{hxx ixx cxx}{supermen-pskel}>: xsd{supermen} $xsd
 {{
-  $xsd cxx-parser --std c++11    \
+  $xsd cxx-parser                \
        --generate-inline         \
        --skel-file-suffix -pskel \
        --generate-polymorphic    \
diff --git a/xsd-examples/cxx/parser/polyroot/buildfile b/xsd-examples/cxx/parser/polyroot/buildfile
index 898551d..c1943d4 100644
--- a/xsd-examples/cxx/parser/polyroot/buildfile
+++ b/xsd-examples/cxx/parser/polyroot/buildfile
@@ -11,7 +11,7 @@ exe{driver}: {hxx cxx}{* -supermen-pskel} {hxx ixx cxx}{supermen-pskel} $libs \
 
 <{hxx ixx cxx}{supermen-pskel}>: xsd{supermen} $xsd
 {{
-  $xsd cxx-parser --std c++11    \
+  $xsd cxx-parser                \
        --generate-inline         \
        --skel-file-suffix -pskel \
        --generate-polymorphic    \
diff --git a/xsd-examples/cxx/parser/wildcard/buildfile b/xsd-examples/cxx/parser/wildcard/buildfile
index 55a8a35..5866f38 100644
--- a/xsd-examples/cxx/parser/wildcard/buildfile
+++ b/xsd-examples/cxx/parser/wildcard/buildfile
@@ -12,7 +12,7 @@ exe{driver}: xml{email}: test.input = true
 
 <{hxx ixx cxx}{email-pskel}>: xsd{email} $xsd
 {{
-  $xsd cxx-parser --std c++11    \
+  $xsd cxx-parser                \
        --generate-inline         \
        --skel-file-suffix -pskel \
        --output-dir $out_base    \
diff --git a/xsd-examples/cxx/tree/binary/boost/buildfile b/xsd-examples/cxx/tree/binary/boost/buildfile
index 7385b9e..17e67fb 100644
--- a/xsd-examples/cxx/tree/binary/boost/buildfile
+++ b/xsd-examples/cxx/tree/binary/boost/buildfile
@@ -13,7 +13,7 @@ exe{driver}: xml{library}: test.input = true
 
 <{hxx ixx cxx}{library}>: xsd{library} hxx{library-prologue} $xsd
 {{
-  $xsd cxx-tree --std c++11                                  \
+  $xsd cxx-tree                                              \
        --generate-inline                                     \
        --generate-ostream                                    \
        --hxx-prologue-file $path($<[1])                      \
diff --git a/xsd-examples/cxx/tree/binary/cdr/buildfile b/xsd-examples/cxx/tree/binary/cdr/buildfile
index c28806a..ccff659 100644
--- a/xsd-examples/cxx/tree/binary/cdr/buildfile
+++ b/xsd-examples/cxx/tree/binary/cdr/buildfile
@@ -13,7 +13,7 @@ exe{driver}: xml{library}: test.input = true
 
 <{hxx ixx cxx}{library}>: xsd{library} $xsd
 {{
-  $xsd cxx-tree --std c++11                 \
+  $xsd cxx-tree                             \
        --generate-inline                    \
        --generate-ostream                   \
        --generate-insertion 'ACE_OutputCDR' \
diff --git a/xsd-examples/cxx/tree/binary/xdr/buildfile b/xsd-examples/cxx/tree/binary/xdr/buildfile
index c25803d..0fbab13 100644
--- a/xsd-examples/cxx/tree/binary/xdr/buildfile
+++ b/xsd-examples/cxx/tree/binary/xdr/buildfile
@@ -15,7 +15,7 @@ exe{driver}: xml{library}: test.input = true
 
 <{hxx ixx cxx}{library}>: xsd{library} $xsd
 {{
-  $xsd cxx-tree --std c++11        \
+  $xsd cxx-tree                    \
        --generate-inline           \
        --generate-ostream          \
        --generate-insertion 'XDR'  \
diff --git a/xsd-examples/cxx/tree/caching/buildfile b/xsd-examples/cxx/tree/caching/buildfile
index d550be3..f1bcb10 100644
--- a/xsd-examples/cxx/tree/caching/buildfile
+++ b/xsd-examples/cxx/tree/caching/buildfile
@@ -12,7 +12,7 @@ exe{driver}: {xml xsd}{library}: test.input = true
 
 <{hxx ixx cxx}{library}>: xsd{library} $xsd
 {{
-  $xsd cxx-tree --std c++11   \
+  $xsd cxx-tree               \
        --generate-inline      \
        --output-dir $out_base \
        $path($<[0])
diff --git a/xsd-examples/cxx/tree/compression/buildfile b/xsd-examples/cxx/tree/compression/buildfile
index a095cf9..99dd8a6 100644
--- a/xsd-examples/cxx/tree/compression/buildfile
+++ b/xsd-examples/cxx/tree/compression/buildfile
@@ -11,7 +11,7 @@ exe{driver}: {hxx cxx}{* -library} {hxx ixx cxx}{library} $libs testscript
 
 <{hxx ixx cxx}{library}>: xsd{library} $xsd
 {{
-  $xsd cxx-tree --std c++11     \
+  $xsd cxx-tree                 \
        --generate-inline        \
        --generate-serialization \
        --generate-ostream       \
diff --git a/xsd-examples/cxx/tree/custom/calendar/buildfile b/xsd-examples/cxx/tree/custom/calendar/buildfile
index 4085561..3309f6f 100644
--- a/xsd-examples/cxx/tree/custom/calendar/buildfile
+++ b/xsd-examples/cxx/tree/custom/calendar/buildfile
@@ -16,7 +16,7 @@ exe{driver}: xml{calendar}: test.input = true
 
 <{hxx ixx cxx}{calendar}>: xsd{calendar} $xsd
 {{
-  $xsd cxx-tree --std c++11               \
+  $xsd cxx-tree                           \
        --generate-inline                  \
        --extern-xml-schema xml-schema.xsd \
        --output-dir $out_base             \
@@ -30,7 +30,7 @@ hxx{xml-schema}: $xsd
   # Note that the specified xml-schema.xsd doesn't exist and is only used to
   # deduce the generated header name.
   #
-  $xsd cxx-tree --std c++11                              \
+  $xsd cxx-tree                                          \
        --generate-xml-schema                             \
        --custom-type date                                \
        --hxx-epilogue '#include "xml-schema-custom.hxx"' \
diff --git a/xsd-examples/cxx/tree/custom/comments/buildfile b/xsd-examples/cxx/tree/custom/comments/buildfile
index 93196d2..6edf81a 100644
--- a/xsd-examples/cxx/tree/custom/comments/buildfile
+++ b/xsd-examples/cxx/tree/custom/comments/buildfile
@@ -15,7 +15,7 @@ exe{driver}: xml{people}: test.input = true
 
 <{hxx ixx cxx}{people}>: xsd{people} $xsd
 {{
-  $xsd cxx-tree --std c++11               \
+  $xsd cxx-tree                           \
        --generate-inline                  \
        --generate-serialization           \
        --extern-xml-schema xml-schema.xsd \
@@ -30,7 +30,7 @@ hxx{xml-schema}: $xsd
   # Note that the specified xml-schema.xsd doesn't exist and is only used to
   # deduce the generated header name.
   #
-  $xsd cxx-tree --std c++11                              \
+  $xsd cxx-tree                                          \
        --generate-xml-schema                             \
        --generate-serialization                          \
        --custom-type anyType=/type_base                  \
diff --git a/xsd-examples/cxx/tree/custom/contacts/buildfile b/xsd-examples/cxx/tree/custom/contacts/buildfile
index 9835bbf..e401362 100644
--- a/xsd-examples/cxx/tree/custom/contacts/buildfile
+++ b/xsd-examples/cxx/tree/custom/contacts/buildfile
@@ -12,7 +12,7 @@ exe{driver}: xml{contacts}: test.input = true
 
 <{hxx ixx cxx}{contacts}>: xsd{contacts} $xsd
 {{
-  $xsd cxx-tree --std c++11                             \
+  $xsd cxx-tree                                         \
        --generate-inline                                \
         --custom-type contact=/contact_base             \
         --hxx-epilogue '#include "contacts-custom.hxx"' \
diff --git a/xsd-examples/cxx/tree/custom/double/buildfile b/xsd-examples/cxx/tree/custom/double/buildfile
index 03c8cde..0c33afe 100644
--- a/xsd-examples/cxx/tree/custom/double/buildfile
+++ b/xsd-examples/cxx/tree/custom/double/buildfile
@@ -13,7 +13,7 @@ exe{driver}: {hxx     cxx}{* -order -xml-schema} \
 
 <{hxx ixx cxx}{order}>: xsd{order} $xsd
 {{
-  $xsd cxx-tree --std c++11               \
+  $xsd cxx-tree                           \
        --generate-inline                  \
        --generate-serialization           \
        --extern-xml-schema xml-schema.xsd \
@@ -28,7 +28,7 @@ hxx{xml-schema}: $xsd
   # Note that the specified xml-schema.xsd doesn't exist and is only used to
   # deduce the generated header name.
   #
-  $xsd cxx-tree --std c++11                          \
+  $xsd cxx-tree                                      \
        --generate-xml-schema                         \
        --generate-serialization                      \
        --custom-type double=double                   \
diff --git a/xsd-examples/cxx/tree/custom/mixed/buildfile b/xsd-examples/cxx/tree/custom/mixed/buildfile
index 595f8b2..e5919fe 100644
--- a/xsd-examples/cxx/tree/custom/mixed/buildfile
+++ b/xsd-examples/cxx/tree/custom/mixed/buildfile
@@ -12,7 +12,7 @@ exe{driver}: xml{people}: test.input = true
 
 <{hxx ixx cxx}{people}>: xsd{people} $xsd
 {{
-  $xsd cxx-tree --std c++11                          \
+  $xsd cxx-tree                                      \
        --generate-inline                             \
        --generate-serialization                      \
        --custom-type bio=/bio_base                   \
diff --git a/xsd-examples/cxx/tree/custom/taxonomy/buildfile b/xsd-examples/cxx/tree/custom/taxonomy/buildfile
index 520470a..4068daa 100644
--- a/xsd-examples/cxx/tree/custom/taxonomy/buildfile
+++ b/xsd-examples/cxx/tree/custom/taxonomy/buildfile
@@ -12,7 +12,7 @@ exe{driver}: xml{people}: test.input = true
 
 <{hxx ixx cxx}{people} hxx{people-fwd}>: xsd{people} $xsd
 {{
-  $xsd cxx-tree --std c++11                                                \
+  $xsd cxx-tree                                                            \
        --generate-inline                                                   \
        --generate-forward                                                  \
        --generate-polymorphic                                              \
diff --git a/xsd-examples/cxx/tree/custom/wildcard/buildfile b/xsd-examples/cxx/tree/custom/wildcard/buildfile
index a0cd709..1bb5a8f 100644
--- a/xsd-examples/cxx/tree/custom/wildcard/buildfile
+++ b/xsd-examples/cxx/tree/custom/wildcard/buildfile
@@ -12,7 +12,7 @@ exe{driver}: xml{wildcard}: test.input = true
 
 <{hxx ixx cxx}{wildcard}>: xsd{wildcard} $xsd
 {{
-  $xsd cxx-tree --std c++11                            \
+  $xsd cxx-tree                                        \
        --generate-inline                               \
        --generate-serialization                        \
        --generate-ostream                              \
diff --git a/xsd-examples/cxx/tree/embedded/buildfile b/xsd-examples/cxx/tree/embedded/buildfile
index 583e34e..20b7207 100644
--- a/xsd-examples/cxx/tree/embedded/buildfile
+++ b/xsd-examples/cxx/tree/embedded/buildfile
@@ -17,7 +17,7 @@ exe{driver}: xml{library}: test.input = true
 
 <{hxx ixx cxx}{library}>: xsd{library} $xsd
 {{
-  $xsd cxx-tree --std c++11   \
+  $xsd cxx-tree               \
        --generate-inline      \
        --output-dir $out_base \
        $path($<[0])
diff --git a/xsd-examples/cxx/tree/hello/buildfile b/xsd-examples/cxx/tree/hello/buildfile
index b842c00..1cd17ac 100644
--- a/xsd-examples/cxx/tree/hello/buildfile
+++ b/xsd-examples/cxx/tree/hello/buildfile
@@ -12,7 +12,7 @@ exe{driver}: xml{hello}: test.input = true
 
 <{hxx ixx cxx}{hello}>: xsd{hello} $xsd
 {{
-  $xsd cxx-tree --std c++11   \
+  $xsd cxx-tree               \
        --generate-inline      \
        --output-dir $out_base \
        $path($<[0])
diff --git a/xsd-examples/cxx/tree/library/buildfile b/xsd-examples/cxx/tree/library/buildfile
index da37919..03745fb 100644
--- a/xsd-examples/cxx/tree/library/buildfile
+++ b/xsd-examples/cxx/tree/library/buildfile
@@ -12,7 +12,7 @@ exe{driver}: xml{library}: test.input = true
 
 <{hxx ixx cxx}{library}>: xsd{library} $xsd
 {{
-  $xsd cxx-tree --std c++11     \
+  $xsd cxx-tree                 \
        --generate-inline        \
        --generate-ostream       \
        --generate-serialization \
diff --git a/xsd-examples/cxx/tree/messaging/buildfile b/xsd-examples/cxx/tree/messaging/buildfile
index 4bb3570..7be8caf 100644
--- a/xsd-examples/cxx/tree/messaging/buildfile
+++ b/xsd-examples/cxx/tree/messaging/buildfile
@@ -10,7 +10,7 @@ exe{driver}: {hxx cxx}{* -protocol} {hxx ixx cxx}{protocol} $libs testscript
 
 <{hxx ixx cxx}{protocol}>: xsd{protocol} $xsd
 {{
-  $xsd cxx-tree --std c++11     \
+  $xsd cxx-tree                 \
        --generate-inline        \
        --root-element-all       \
        --generate-element-type  \
diff --git a/xsd-examples/cxx/tree/mixed/buildfile b/xsd-examples/cxx/tree/mixed/buildfile
index c6c13a0..c91021a 100644
--- a/xsd-examples/cxx/tree/mixed/buildfile
+++ b/xsd-examples/cxx/tree/mixed/buildfile
@@ -12,7 +12,7 @@ exe{driver}: xml{text}: test.input = true
 
 <{hxx ixx cxx}{text}>: xsd{text} $xsd
 {{
-  $xsd cxx-tree --std c++11   \
+  $xsd cxx-tree               \
        --generate-inline      \
        --output-dir $out_base \
        $path($<[0])
diff --git a/xsd-examples/cxx/tree/multiroot/buildfile b/xsd-examples/cxx/tree/multiroot/buildfile
index 6f6e1fe..55ddb0d 100644
--- a/xsd-examples/cxx/tree/multiroot/buildfile
+++ b/xsd-examples/cxx/tree/multiroot/buildfile
@@ -10,7 +10,7 @@ exe{driver}: {hxx cxx}{* -protocol} {hxx ixx cxx}{protocol} $libs testscript
 
 <{hxx ixx cxx}{protocol}>: xsd{protocol} $xsd
 {{
-  $xsd cxx-tree --std c++11   \
+  $xsd cxx-tree               \
        --generate-inline      \
        --root-element-all     \
        --output-dir $out_base \
diff --git a/xsd-examples/cxx/tree/order/element/buildfile b/xsd-examples/cxx/tree/order/element/buildfile
index d3c3bd6..6e56a60 100644
--- a/xsd-examples/cxx/tree/order/element/buildfile
+++ b/xsd-examples/cxx/tree/order/element/buildfile
@@ -12,7 +12,7 @@ exe{driver}: xml{transactions}: test.input = true
 
 <{hxx ixx cxx}{transactions}>: xsd{transactions} $xsd
 {{
-  $xsd cxx-tree --std c++11     \
+  $xsd cxx-tree                 \
        --generate-inline        \
        --generate-serialization \
        --generate-wildcard      \
diff --git a/xsd-examples/cxx/tree/order/mixed/buildfile b/xsd-examples/cxx/tree/order/mixed/buildfile
index 0125f8d..6bc21e2 100644
--- a/xsd-examples/cxx/tree/order/mixed/buildfile
+++ b/xsd-examples/cxx/tree/order/mixed/buildfile
@@ -12,7 +12,7 @@ exe{driver}: xml{text}: test.input = true
 
 <{hxx ixx cxx}{text}>: xsd{text} $xsd
 {{
-  $xsd cxx-tree --std c++11     \
+  $xsd cxx-tree                 \
        --generate-inline        \
        --generate-serialization \
        --ordered-type-mixed     \
diff --git a/xsd-examples/cxx/tree/performance/buildfile b/xsd-examples/cxx/tree/performance/buildfile
index e2fb4be..7b28308 100644
--- a/xsd-examples/cxx/tree/performance/buildfile
+++ b/xsd-examples/cxx/tree/performance/buildfile
@@ -14,7 +14,7 @@ exe{driver}: xml{test-50k}: test.input = true
 
 <{hxx ixx cxx}{test}>: xsd{test} $xsd
 {{
-  $xsd cxx-tree --std c++11     \
+  $xsd cxx-tree                 \
        --generate-inline        \
        --generate-serialization \
        --output-dir $out_base   \
diff --git a/xsd-examples/cxx/tree/polymorphism/buildfile b/xsd-examples/cxx/tree/polymorphism/buildfile
index ea92889..359d4d3 100644
--- a/xsd-examples/cxx/tree/polymorphism/buildfile
+++ b/xsd-examples/cxx/tree/polymorphism/buildfile
@@ -12,7 +12,7 @@ exe{driver}: xml{supermen}: test.input = true
 
 <{hxx ixx cxx}{supermen}>: xsd{supermen} $xsd
 {{
-  $xsd cxx-tree --std c++11     \
+  $xsd cxx-tree                 \
        --generate-inline        \
        --generate-polymorphic   \
        --generate-serialization \
diff --git a/xsd-examples/cxx/tree/secure/buildfile b/xsd-examples/cxx/tree/secure/buildfile
index e4086be..a86af57 100644
--- a/xsd-examples/cxx/tree/secure/buildfile
+++ b/xsd-examples/cxx/tree/secure/buildfile
@@ -12,7 +12,7 @@ exe{driver}: xml{library}: test.input = true
 
 <{hxx ixx cxx}{library}>: xsd{library} $xsd
 {{
-  $xsd cxx-tree --std c++11   \
+  $xsd cxx-tree               \
        --generate-inline      \
        --output-dir $out_base \
        $path($<[0])
diff --git a/xsd-examples/cxx/tree/streaming/buildfile b/xsd-examples/cxx/tree/streaming/buildfile
index 91ab678..8555257 100644
--- a/xsd-examples/cxx/tree/streaming/buildfile
+++ b/xsd-examples/cxx/tree/streaming/buildfile
@@ -10,7 +10,7 @@ exe{driver}: {hxx cxx}{* -position} {hxx ixx cxx}{position} $libs testscript
 
 <{hxx ixx cxx}{position}>: xsd{position} $xsd
 {{
-  $xsd cxx-tree --std c++11     \
+  $xsd cxx-tree                 \
        --generate-inline        \
        --generate-serialization \
        --output-dir $out_base   \
diff --git a/xsd-examples/cxx/tree/wildcard/buildfile b/xsd-examples/cxx/tree/wildcard/buildfile
index 8661865..dc158f4 100644
--- a/xsd-examples/cxx/tree/wildcard/buildfile
+++ b/xsd-examples/cxx/tree/wildcard/buildfile
@@ -12,7 +12,7 @@ exe{driver}: xml{email}: test.input = true
 
 <{hxx ixx cxx}{email}>: xsd{email} $xsd
 {{
-  $xsd cxx-tree --std c++11     \
+  $xsd cxx-tree                 \
        --generate-inline        \
        --generate-wildcard      \
        --generate-serialization \
diff --git a/xsd-examples/cxx/tree/xpath/buildfile b/xsd-examples/cxx/tree/xpath/buildfile
index 7cc5020..4f49599 100644
--- a/xsd-examples/cxx/tree/xpath/buildfile
+++ b/xsd-examples/cxx/tree/xpath/buildfile
@@ -13,7 +13,7 @@ exe{driver}: xml{people}: test.input = true
 
 <{hxx ixx cxx}{people}>: xsd{people} $xsd
 {{
-  $xsd cxx-tree --std c++11   \
+  $xsd cxx-tree               \
        --generate-inline      \
        --output-dir $out_base \
        $path($<[0])