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-rw-r--r--build/xsd/parser/xsd-cxx.make2
-rw-r--r--build/xsd/tree/xsd-cxx.make2
-rw-r--r--examples/cxx/parser/generated/makefile2
-rw-r--r--examples/cxx/parser/library/makefile2
-rw-r--r--examples/cxx/parser/mixed/makefile2
-rw-r--r--examples/cxx/parser/mixin/makefile2
-rw-r--r--examples/cxx/parser/multiroot/makefile2
-rw-r--r--examples/cxx/parser/performance/makefile2
-rw-r--r--examples/cxx/parser/polymorphism/makefile2
-rw-r--r--examples/cxx/parser/polyroot/makefile2
-rw-r--r--examples/cxx/tree/binary/boost/makefile2
-rw-r--r--examples/cxx/tree/binary/cdr/makefile2
-rw-r--r--examples/cxx/tree/binary/xdr/makefile2
-rw-r--r--examples/cxx/tree/caching/makefile1
-rw-r--r--examples/cxx/tree/compression/makefile2
-rw-r--r--examples/cxx/tree/custom/calendar/makefile2
-rw-r--r--examples/cxx/tree/custom/comments/makefile2
-rw-r--r--examples/cxx/tree/custom/contacts/makefile2
-rw-r--r--examples/cxx/tree/custom/double/makefile4
-rw-r--r--examples/cxx/tree/custom/mixed/makefile2
-rw-r--r--examples/cxx/tree/custom/taxonomy/makefile2
-rw-r--r--examples/cxx/tree/custom/wildcard/makefile2
-rw-r--r--examples/cxx/tree/embedded/makefile1
-rw-r--r--examples/cxx/tree/hello/makefile1
-rw-r--r--examples/cxx/tree/library/makefile2
-rw-r--r--examples/cxx/tree/messaging/makefile4
-rw-r--r--examples/cxx/tree/mixed/makefile1
-rw-r--r--examples/cxx/tree/multiroot/makefile2
-rw-r--r--examples/cxx/tree/performance/makefile2
-rw-r--r--examples/cxx/tree/polymorphism/makefile2
-rw-r--r--examples/cxx/tree/streaming/makefile2
-rw-r--r--examples/cxx/tree/wildcard/makefile2
-rw-r--r--examples/cxx/tree/xpath/makefile1
-rw-r--r--tests/cxx/parser/enumeration/makefile2
-rw-r--r--tests/cxx/parser/generated-impl/makefile2
-rw-r--r--tests/cxx/parser/name-clash/inheritance/makefile2
-rw-r--r--tests/cxx/parser/polymorphism/recursive/makefile2
-rw-r--r--tests/cxx/parser/polymorphism/same-type/makefile2
-rw-r--r--tests/cxx/parser/recursive/makefile2
-rw-r--r--tests/cxx/parser/validation/all/makefile2
-rw-r--r--tests/cxx/parser/validation/any/makefile2
-rw-r--r--tests/cxx/parser/validation/attribute/makefile2
-rw-r--r--tests/cxx/parser/validation/built-in/any-type/makefile2
-rw-r--r--tests/cxx/parser/validation/choice/makefile2
-rw-r--r--tests/cxx/parser/validation/restriction/makefile2
-rw-r--r--tests/cxx/parser/validation/sequence/makefile2
-rw-r--r--tests/cxx/tree/binary/cdr/makefile2
-rw-r--r--tests/cxx/tree/binary/polymorphic/makefile2
-rw-r--r--tests/cxx/tree/binary/xdr/makefile2
-rw-r--r--tests/cxx/tree/built-in/makefile2
-rw-r--r--tests/cxx/tree/chameleon/makefile2
-rw-r--r--tests/cxx/tree/comparison/makefile2
-rw-r--r--tests/cxx/tree/compilation/makefile2
-rw-r--r--tests/cxx/tree/complex/ctor/makefile2
-rw-r--r--tests/cxx/tree/containment/makefile2
-rw-r--r--tests/cxx/tree/default/general/makefile2
-rw-r--r--tests/cxx/tree/default/omit/makefile2
-rw-r--r--tests/cxx/tree/detach/makefile2
-rw-r--r--tests/cxx/tree/encoding/char/iso-8859-1/makefile2
-rw-r--r--tests/cxx/tree/encoding/char/lcp/makefile2
-rw-r--r--tests/cxx/tree/encoding/char/utf-8/makefile2
-rw-r--r--tests/cxx/tree/encoding/wchar/makefile2
-rw-r--r--tests/cxx/tree/enumeration/ctor/makefile2
-rw-r--r--tests/cxx/tree/enumeration/inheritance/makefile2
-rw-r--r--tests/cxx/tree/float/makefile2
-rw-r--r--tests/cxx/tree/list/ctor/makefile2
-rw-r--r--tests/cxx/tree/name-clash/inheritance/makefile2
-rw-r--r--tests/cxx/tree/naming/camel/makefile2
-rw-r--r--tests/cxx/tree/naming/java/makefile2
-rw-r--r--tests/cxx/tree/naming/knr/makefile2
-rw-r--r--tests/cxx/tree/polymorphism/comparison/makefile2
-rw-r--r--tests/cxx/tree/polymorphism/ostream/makefile2
-rw-r--r--tests/cxx/tree/polymorphism/same-type/makefile2
-rw-r--r--tests/cxx/tree/prefix/makefile2
-rw-r--r--tests/cxx/tree/test-template/makefile2
-rw-r--r--tests/cxx/tree/types-only/makefile2
-rw-r--r--tests/cxx/tree/union/ctor/makefile2
-rw-r--r--tests/cxx/tree/wildcard/makefile2
78 files changed, 75 insertions, 80 deletions
diff --git a/build/xsd/parser/xsd-cxx.make b/build/xsd/parser/xsd-cxx.make
index ec76cd9..ae2d9b7 100644
--- a/build/xsd/parser/xsd-cxx.make
+++ b/build/xsd/parser/xsd-cxx.make
@@ -28,7 +28,7 @@ endif
$(xsd_parser_pattern): xsd := xsd
$(xsd_parser_pattern): xsd_command := cxx-parser
-ops := --skel-file-suffix $(xsd_parser_skel_suffix)
+ops := --generate-inline --skel-file-suffix $(xsd_parser_skel_suffix)
ifneq ($(xsd_pimpl_suffix),)
ops += --impl-file-suffix $(xsd_parser_impl_suffix)
diff --git a/build/xsd/tree/xsd-cxx.make b/build/xsd/tree/xsd-cxx.make
index 9fa4d97..575b3eb 100644
--- a/build/xsd/tree/xsd-cxx.make
+++ b/build/xsd/tree/xsd-cxx.make
@@ -16,7 +16,7 @@ $(out_base)/%$(xsd_tree_suffix)-fwd.hxx
$(xsd_tree_pattern): xsd := xsd
$(xsd_tree_pattern): xsd_command := cxx-tree
-$(xsd_tree_pattern): xsd_options :=
+$(xsd_tree_pattern): xsd_options := --generate-inline
.PRECIOUS: $(xsd_tree_pattern)
diff --git a/examples/cxx/parser/generated/makefile b/examples/cxx/parser/generated/makefile
index fefa1f8..0ece646 100644
--- a/examples/cxx/parser/generated/makefile
+++ b/examples/cxx/parser/generated/makefile
@@ -41,7 +41,7 @@ gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-print-impl --generate-test-driver \
+$(gen): xsd_options += --generate-print-impl --generate-test-driver \
--force-overwrite
$(gen): $(out_root)/xsd/xsd
diff --git a/examples/cxx/parser/library/makefile b/examples/cxx/parser/library/makefile
index 4f8082c..d5fc622 100644
--- a/examples/cxx/parser/library/makefile
+++ b/examples/cxx/parser/library/makefile
@@ -36,7 +36,7 @@ genf := $(xsd:.xsd=-pskel.hxx) $(xsd:.xsd=-pskel.ixx) $(xsd:.xsd=-pskel.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-inline --type-map $(src_base)/library.map
+$(gen): xsd_options += --generate-inline --type-map $(src_base)/library.map
$(gen): $(out_root)/xsd/xsd $(src_base)/library.map
$(call include-dep,$(dep),$(obj),$(gen))
diff --git a/examples/cxx/parser/mixed/makefile b/examples/cxx/parser/mixed/makefile
index 7feca93..fe53782 100644
--- a/examples/cxx/parser/mixed/makefile
+++ b/examples/cxx/parser/mixed/makefile
@@ -36,7 +36,7 @@ genf := $(xsd:.xsd=-pskel.hxx) $(xsd:.xsd=-pskel.ixx) $(xsd:.xsd=-pskel.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --type-map $(src_base)/text.map
+$(gen): xsd_options += --type-map $(src_base)/text.map
$(gen): $(out_root)/xsd/xsd $(src_base)/text.map
$(call include-dep,$(dep),$(obj),$(gen))
diff --git a/examples/cxx/parser/mixin/makefile b/examples/cxx/parser/mixin/makefile
index b30261d..655429a 100644
--- a/examples/cxx/parser/mixin/makefile
+++ b/examples/cxx/parser/mixin/makefile
@@ -36,7 +36,7 @@ genf := $(xsd:.xsd=-pskel.hxx) $(xsd:.xsd=-pskel.ixx) $(xsd:.xsd=-pskel.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --type-map $(src_base)/schema.map
+$(gen): xsd_options += --type-map $(src_base)/schema.map
$(gen): $(out_root)/xsd/xsd $(src_base)/schema.map
$(call include-dep,$(dep),$(obj),$(gen))
diff --git a/examples/cxx/parser/multiroot/makefile b/examples/cxx/parser/multiroot/makefile
index 016a63b..b1ec58c 100644
--- a/examples/cxx/parser/multiroot/makefile
+++ b/examples/cxx/parser/multiroot/makefile
@@ -36,7 +36,7 @@ genf := $(xsd:.xsd=-pskel.hxx) $(xsd:.xsd=-pskel.ixx) $(xsd:.xsd=-pskel.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --type-map $(src_base)/protocol.map
+$(gen): xsd_options += --type-map $(src_base)/protocol.map
$(gen): $(out_root)/xsd/xsd $(src_base)/protocol.map
$(call include-dep,$(dep),$(obj),$(gen))
diff --git a/examples/cxx/parser/performance/makefile b/examples/cxx/parser/performance/makefile
index e8efd93..dfa009c 100644
--- a/examples/cxx/parser/performance/makefile
+++ b/examples/cxx/parser/performance/makefile
@@ -36,7 +36,7 @@ genf := $(xsd:.xsd=-pskel.hxx) $(xsd:.xsd=-pskel.ixx) $(xsd:.xsd=-pskel.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-inline
+$(gen): xsd_options += --generate-inline
$(gen): $(out_root)/xsd/xsd
$(call include-dep,$(dep),$(obj),$(gen))
diff --git a/examples/cxx/parser/polymorphism/makefile b/examples/cxx/parser/polymorphism/makefile
index 17fc38a..a98fac7 100644
--- a/examples/cxx/parser/polymorphism/makefile
+++ b/examples/cxx/parser/polymorphism/makefile
@@ -36,7 +36,7 @@ genf := $(xsd:.xsd=-pskel.hxx) $(xsd:.xsd=-pskel.ixx) $(xsd:.xsd=-pskel.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-polymorphic
+$(gen): xsd_options += --generate-polymorphic
$(gen): $(out_root)/xsd/xsd
$(call include-dep,$(dep),$(obj),$(gen))
diff --git a/examples/cxx/parser/polyroot/makefile b/examples/cxx/parser/polyroot/makefile
index c0a8020..aa430c8 100644
--- a/examples/cxx/parser/polyroot/makefile
+++ b/examples/cxx/parser/polyroot/makefile
@@ -36,7 +36,7 @@ genf := $(xsd:.xsd=-pskel.hxx) $(xsd:.xsd=-pskel.ixx) $(xsd:.xsd=-pskel.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-polymorphic
+$(gen): xsd_options += --generate-polymorphic
$(gen): $(out_root)/xsd/xsd
$(call include-dep,$(dep),$(obj),$(gen))
diff --git a/examples/cxx/tree/binary/boost/makefile b/examples/cxx/tree/binary/boost/makefile
index 2a2c297..fe3c77b 100644
--- a/examples/cxx/tree/binary/boost/makefile
+++ b/examples/cxx/tree/binary/boost/makefile
@@ -43,7 +43,7 @@ gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-ostream \
+$(gen): xsd_options += --generate-ostream \
--hxx-prologue-file $(src_base)/library-prologue.hxx \
--generate-insertion boost::archive::text_oarchive \
--generate-extraction boost::archive::text_iarchive
diff --git a/examples/cxx/tree/binary/cdr/makefile b/examples/cxx/tree/binary/cdr/makefile
index d09b730..91a5023 100644
--- a/examples/cxx/tree/binary/cdr/makefile
+++ b/examples/cxx/tree/binary/cdr/makefile
@@ -42,7 +42,7 @@ genf := $(xsd:.xsd=.hxx) $(xsd:.xsd=.ixx) $(xsd:.xsd=.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-ostream \
+$(gen): xsd_options += --generate-ostream \
--generate-insertion ACE_OutputCDR --generate-extraction ACE_InputCDR
$(gen): $(out_root)/xsd/xsd
diff --git a/examples/cxx/tree/binary/xdr/makefile b/examples/cxx/tree/binary/xdr/makefile
index 55613a8..6483e82 100644
--- a/examples/cxx/tree/binary/xdr/makefile
+++ b/examples/cxx/tree/binary/xdr/makefile
@@ -34,7 +34,7 @@ genf := $(xsd:.xsd=.hxx) $(xsd:.xsd=.ixx) $(xsd:.xsd=.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-ostream \
+$(gen): xsd_options += --generate-ostream \
--generate-insertion XDR --generate-extraction XDR
$(gen): $(out_root)/xsd/xsd
diff --git a/examples/cxx/tree/caching/makefile b/examples/cxx/tree/caching/makefile
index eb05222..4f4c609 100644
--- a/examples/cxx/tree/caching/makefile
+++ b/examples/cxx/tree/caching/makefile
@@ -36,7 +36,6 @@ genf := $(xsd:.xsd=.hxx) $(xsd:.xsd=.ixx) $(xsd:.xsd=.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options :=
$(gen): $(out_root)/xsd/xsd
$(call include-dep,$(dep),$(obj),$(gen))
diff --git a/examples/cxx/tree/compression/makefile b/examples/cxx/tree/compression/makefile
index 04c867d..84df653 100644
--- a/examples/cxx/tree/compression/makefile
+++ b/examples/cxx/tree/compression/makefile
@@ -41,7 +41,7 @@ genf := $(xsd:.xsd=.hxx) $(xsd:.xsd=.ixx) $(xsd:.xsd=.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-ostream --generate-serialization
+$(gen): xsd_options += --generate-ostream --generate-serialization
$(gen): $(out_root)/xsd/xsd
$(call include-dep,$(dep),$(obj),$(gen))
diff --git a/examples/cxx/tree/custom/calendar/makefile b/examples/cxx/tree/custom/calendar/makefile
index 656ceab..cc4d9d9 100644
--- a/examples/cxx/tree/custom/calendar/makefile
+++ b/examples/cxx/tree/custom/calendar/makefile
@@ -51,7 +51,7 @@ genf := $(xsd:.xsd=.hxx) $(xsd:.xsd=.ixx) $(xsd:.xsd=.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := \
+$(gen): xsd_options += \
--generate-inline \
--extern-xml-schema xml-schema.xsd
diff --git a/examples/cxx/tree/custom/comments/makefile b/examples/cxx/tree/custom/comments/makefile
index 4138710..6eca039 100644
--- a/examples/cxx/tree/custom/comments/makefile
+++ b/examples/cxx/tree/custom/comments/makefile
@@ -45,7 +45,7 @@ genf := $(xsd:.xsd=.hxx) $(xsd:.xsd=.ixx) $(xsd:.xsd=.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := \
+$(gen): xsd_options += \
--generate-inline \
--generate-serialization \
--extern-xml-schema xml-schema.xsd
diff --git a/examples/cxx/tree/custom/contacts/makefile b/examples/cxx/tree/custom/contacts/makefile
index c3d45f6..6ad6f96 100644
--- a/examples/cxx/tree/custom/contacts/makefile
+++ b/examples/cxx/tree/custom/contacts/makefile
@@ -40,7 +40,7 @@ $(gen): xsd := $(out_root)/xsd/xsd
# We have to double-escape '#' because the message function
# (which is used in command scripts) expands things twice.
#
-$(gen): xsd_options := \
+$(gen): xsd_options += \
--generate-inline \
--custom-type contact=/contact_base \
--hxx-epilogue '\#include "contacts-custom.hxx"'
diff --git a/examples/cxx/tree/custom/double/makefile b/examples/cxx/tree/custom/double/makefile
index ee90e7e..0461bb0 100644
--- a/examples/cxx/tree/custom/double/makefile
+++ b/examples/cxx/tree/custom/double/makefile
@@ -42,8 +42,8 @@ genf := $(xsd:.xsd=.hxx) $(xsd:.xsd=.ixx) $(xsd:.xsd=.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := \
---generate-serialization --extern-xml-schema xml-schema.xsd
+$(gen): xsd_options += --generate-serialization \
+--extern-xml-schema xml-schema.xsd
$(gen): $(out_root)/xsd/xsd
diff --git a/examples/cxx/tree/custom/mixed/makefile b/examples/cxx/tree/custom/mixed/makefile
index f95c1fe..43a1774 100644
--- a/examples/cxx/tree/custom/mixed/makefile
+++ b/examples/cxx/tree/custom/mixed/makefile
@@ -40,7 +40,7 @@ $(gen): xsd := $(out_root)/xsd/xsd
# We have to double-escape '#' because the message function
# (which is used in command scripts) expands things twice.
#
-$(gen): xsd_options := \
+$(gen): xsd_options += \
--generate-inline \
--generate-serialization \
--custom-type bio=/bio_base \
diff --git a/examples/cxx/tree/custom/taxonomy/makefile b/examples/cxx/tree/custom/taxonomy/makefile
index 48ba7e8..fdd5636 100644
--- a/examples/cxx/tree/custom/taxonomy/makefile
+++ b/examples/cxx/tree/custom/taxonomy/makefile
@@ -40,7 +40,7 @@ $(gen): xsd := $(out_root)/xsd/xsd
# We have to double-escape '#' because the message function
# (which is used in command scripts) expands things twice.
#
-$(gen): xsd_options := \
+$(gen): xsd_options += \
--generate-inline \
--generate-forward \
--generate-polymorphic \
diff --git a/examples/cxx/tree/custom/wildcard/makefile b/examples/cxx/tree/custom/wildcard/makefile
index c90526b..7e7a0ee 100644
--- a/examples/cxx/tree/custom/wildcard/makefile
+++ b/examples/cxx/tree/custom/wildcard/makefile
@@ -40,7 +40,7 @@ $(gen): xsd := $(out_root)/xsd/xsd
# We have to double-escape '#' because the message function
# (which is used in command scripts) expands things twice.
#
-$(gen): xsd_options := \
+$(gen): xsd_options += \
--generate-inline \
--generate-ostream \
--generate-serialization \
diff --git a/examples/cxx/tree/embedded/makefile b/examples/cxx/tree/embedded/makefile
index ffc9ded..b1ecbf9 100644
--- a/examples/cxx/tree/embedded/makefile
+++ b/examples/cxx/tree/embedded/makefile
@@ -40,7 +40,6 @@ genf := $(xsd:.xsd=.hxx) $(xsd:.xsd=.ixx) $(xsd:.xsd=.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options :=
$(gen): $(out_root)/xsd/xsd
genf += $(xsd:.xsd=-schema.hxx) $(xsd:.xsd=-schema.cxx)
diff --git a/examples/cxx/tree/hello/makefile b/examples/cxx/tree/hello/makefile
index a2662a5..c414d35 100644
--- a/examples/cxx/tree/hello/makefile
+++ b/examples/cxx/tree/hello/makefile
@@ -36,7 +36,6 @@ genf := $(xsd:.xsd=.hxx) $(xsd:.xsd=.ixx) $(xsd:.xsd=.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options :=
$(gen): $(out_root)/xsd/xsd
$(call include-dep,$(dep),$(obj),$(gen))
diff --git a/examples/cxx/tree/library/makefile b/examples/cxx/tree/library/makefile
index d984aaa..73af87f 100644
--- a/examples/cxx/tree/library/makefile
+++ b/examples/cxx/tree/library/makefile
@@ -36,7 +36,7 @@ genf := $(xsd:.xsd=.hxx) $(xsd:.xsd=.ixx) $(xsd:.xsd=.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-inline --generate-ostream \
+$(gen): xsd_options += --generate-inline --generate-ostream \
--generate-serialization
$(gen): $(out_root)/xsd/xsd
diff --git a/examples/cxx/tree/messaging/makefile b/examples/cxx/tree/messaging/makefile
index 31a67a4..d9ea6d4 100644
--- a/examples/cxx/tree/messaging/makefile
+++ b/examples/cxx/tree/messaging/makefile
@@ -37,8 +37,8 @@ gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --root-element-all \
---generate-element-type --generate-element-map --generate-serialization
+$(gen): xsd_options += --root-element-all --generate-element-type \
+--generate-element-map --generate-serialization
$(gen): $(out_root)/xsd/xsd
diff --git a/examples/cxx/tree/mixed/makefile b/examples/cxx/tree/mixed/makefile
index 9da0d41..010bd05 100644
--- a/examples/cxx/tree/mixed/makefile
+++ b/examples/cxx/tree/mixed/makefile
@@ -36,7 +36,6 @@ genf := $(xsd:.xsd=.hxx) $(xsd:.xsd=.ixx) $(xsd:.xsd=.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options :=
$(gen): $(out_root)/xsd/xsd
$(call include-dep,$(dep),$(obj),$(gen))
diff --git a/examples/cxx/tree/multiroot/makefile b/examples/cxx/tree/multiroot/makefile
index 6c0e9ec..9357932 100644
--- a/examples/cxx/tree/multiroot/makefile
+++ b/examples/cxx/tree/multiroot/makefile
@@ -36,7 +36,7 @@ genf := $(xsd:.xsd=.hxx) $(xsd:.xsd=.ixx) $(xsd:.xsd=.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --root-element-all
+$(gen): xsd_options += --root-element-all
$(gen): $(out_root)/xsd/xsd
$(call include-dep,$(dep),$(obj),$(gen))
diff --git a/examples/cxx/tree/performance/makefile b/examples/cxx/tree/performance/makefile
index d3e29b6..4877886 100644
--- a/examples/cxx/tree/performance/makefile
+++ b/examples/cxx/tree/performance/makefile
@@ -36,7 +36,7 @@ genf := $(xsd:.xsd=.hxx) $(xsd:.xsd=.ixx) $(xsd:.xsd=.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-inline --generate-serialization
+$(gen): xsd_options += --generate-inline --generate-serialization
$(gen): $(out_root)/xsd/xsd
$(call include-dep,$(dep),$(obj),$(gen))
diff --git a/examples/cxx/tree/polymorphism/makefile b/examples/cxx/tree/polymorphism/makefile
index aadb79e..03107e2 100644
--- a/examples/cxx/tree/polymorphism/makefile
+++ b/examples/cxx/tree/polymorphism/makefile
@@ -36,7 +36,7 @@ genf := $(xsd:.xsd=.hxx) $(xsd:.xsd=.ixx) $(xsd:.xsd=.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-polymorphic --generate-serialization \
+$(gen): xsd_options += --generate-polymorphic --generate-serialization \
--root-element-last
$(gen): $(out_root)/xsd/xsd
diff --git a/examples/cxx/tree/streaming/makefile b/examples/cxx/tree/streaming/makefile
index 9e07aec..deeba1f 100644
--- a/examples/cxx/tree/streaming/makefile
+++ b/examples/cxx/tree/streaming/makefile
@@ -36,7 +36,7 @@ genf := $(xsd:.xsd=.hxx) $(xsd:.xsd=.ixx) $(xsd:.xsd=.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-serialization
+$(gen): xsd_options += --generate-serialization
$(gen): $(out_root)/xsd/xsd
$(call include-dep,$(dep),$(obj),$(gen))
diff --git a/examples/cxx/tree/wildcard/makefile b/examples/cxx/tree/wildcard/makefile
index d0c47b7..9c9feb2 100644
--- a/examples/cxx/tree/wildcard/makefile
+++ b/examples/cxx/tree/wildcard/makefile
@@ -36,7 +36,7 @@ genf := $(xsd:.xsd=.hxx) $(xsd:.xsd=.ixx) $(xsd:.xsd=.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-inline --generate-wildcard \
+$(gen): xsd_options += --generate-inline --generate-wildcard \
--generate-serialization --root-element message
$(gen): $(out_root)/xsd/xsd
diff --git a/examples/cxx/tree/xpath/makefile b/examples/cxx/tree/xpath/makefile
index 0bf123e..ab0f0f3 100644
--- a/examples/cxx/tree/xpath/makefile
+++ b/examples/cxx/tree/xpath/makefile
@@ -42,7 +42,6 @@ genf := $(xsd:.xsd=.hxx) $(xsd:.xsd=.ixx) $(xsd:.xsd=.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options :=
$(gen): $(out_root)/xsd/xsd
$(call include-dep,$(dep),$(obj),$(gen))
diff --git a/tests/cxx/parser/enumeration/makefile b/tests/cxx/parser/enumeration/makefile
index 7d4ab20..fd7a988 100644
--- a/tests/cxx/parser/enumeration/makefile
+++ b/tests/cxx/parser/enumeration/makefile
@@ -32,7 +32,7 @@ genf := $(xsd:.xsd=-pskel.hxx) $(xsd:.xsd=-pskel.ixx) $(xsd:.xsd=-pskel.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --type-map $(src_base)/test.map
+$(gen): xsd_options += --type-map $(src_base)/test.map
$(gen): $(out_root)/xsd/xsd $(src_base)/test.map
$(call include-dep,$(dep),$(obj),$(gen))
diff --git a/tests/cxx/parser/generated-impl/makefile b/tests/cxx/parser/generated-impl/makefile
index acd542f..1d62faf 100644
--- a/tests/cxx/parser/generated-impl/makefile
+++ b/tests/cxx/parser/generated-impl/makefile
@@ -38,7 +38,7 @@ gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-print-impl --generate-test-driver \
+$(gen): xsd_options += --generate-print-impl --generate-test-driver \
--force-overwrite
$(gen): $(out_root)/xsd/xsd
diff --git a/tests/cxx/parser/name-clash/inheritance/makefile b/tests/cxx/parser/name-clash/inheritance/makefile
index 641f993..f67e1fa 100644
--- a/tests/cxx/parser/name-clash/inheritance/makefile
+++ b/tests/cxx/parser/name-clash/inheritance/makefile
@@ -32,7 +32,7 @@ genf := $(xsd:.xsd=-pskel.hxx) $(xsd:.xsd=-pskel.ixx) $(xsd:.xsd=-pskel.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-validation
+$(gen): xsd_options += --generate-validation
$(gen): $(out_root)/xsd/xsd
$(call include-dep,$(dep),$(obj),$(gen))
diff --git a/tests/cxx/parser/polymorphism/recursive/makefile b/tests/cxx/parser/polymorphism/recursive/makefile
index 595406d..246ac88 100644
--- a/tests/cxx/parser/polymorphism/recursive/makefile
+++ b/tests/cxx/parser/polymorphism/recursive/makefile
@@ -32,7 +32,7 @@ genf := $(xsd:.xsd=-pskel.hxx) $(xsd:.xsd=-pskel.ixx) $(xsd:.xsd=-pskel.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-polymorphic
+$(gen): xsd_options += --generate-polymorphic
$(gen): $(out_root)/xsd/xsd
$(call include-dep,$(dep),$(obj),$(gen))
diff --git a/tests/cxx/parser/polymorphism/same-type/makefile b/tests/cxx/parser/polymorphism/same-type/makefile
index 7f1ab04..e322e48 100644
--- a/tests/cxx/parser/polymorphism/same-type/makefile
+++ b/tests/cxx/parser/polymorphism/same-type/makefile
@@ -32,7 +32,7 @@ genf := $(xsd:.xsd=-pskel.hxx) $(xsd:.xsd=-pskel.ixx) $(xsd:.xsd=-pskel.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-polymorphic
+$(gen): xsd_options += --generate-polymorphic
$(gen): $(out_root)/xsd/xsd
$(call include-dep,$(dep),$(obj),$(gen))
diff --git a/tests/cxx/parser/recursive/makefile b/tests/cxx/parser/recursive/makefile
index 21b80c2..f73f0a8 100644
--- a/tests/cxx/parser/recursive/makefile
+++ b/tests/cxx/parser/recursive/makefile
@@ -32,7 +32,7 @@ genf := $(xsd:.xsd=-pskel.hxx) $(xsd:.xsd=-pskel.ixx) $(xsd:.xsd=-pskel.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-validation
+$(gen): xsd_options += --generate-validation
$(gen): $(out_root)/xsd/xsd
$(call include-dep,$(dep),$(obj),$(gen))
diff --git a/tests/cxx/parser/validation/all/makefile b/tests/cxx/parser/validation/all/makefile
index d772718..74b430a 100644
--- a/tests/cxx/parser/validation/all/makefile
+++ b/tests/cxx/parser/validation/all/makefile
@@ -34,7 +34,7 @@ genf := $(xsd:.xsd=-pskel.hxx) $(xsd:.xsd=-pskel.ixx) $(xsd:.xsd=-pskel.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-validation
+$(gen): xsd_options += --generate-validation
$(gen): $(out_root)/xsd/xsd
$(call include-dep,$(dep),$(obj),$(gen))
diff --git a/tests/cxx/parser/validation/any/makefile b/tests/cxx/parser/validation/any/makefile
index 6e38eaa..56d4ef7 100644
--- a/tests/cxx/parser/validation/any/makefile
+++ b/tests/cxx/parser/validation/any/makefile
@@ -34,7 +34,7 @@ genf := $(xsd:.xsd=-pskel.hxx) $(xsd:.xsd=-pskel.ixx) $(xsd:.xsd=-pskel.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-validation
+$(gen): xsd_options += --generate-validation
$(gen): $(out_root)/xsd/xsd
$(call include-dep,$(dep),$(obj),$(gen))
diff --git a/tests/cxx/parser/validation/attribute/makefile b/tests/cxx/parser/validation/attribute/makefile
index d3571ef..88d7505 100644
--- a/tests/cxx/parser/validation/attribute/makefile
+++ b/tests/cxx/parser/validation/attribute/makefile
@@ -34,7 +34,7 @@ genf := $(xsd:.xsd=-pskel.hxx) $(xsd:.xsd=-pskel.ixx) $(xsd:.xsd=-pskel.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-validation
+$(gen): xsd_options += --generate-validation
$(gen): $(out_root)/xsd/xsd
$(call include-dep,$(dep),$(obj),$(gen))
diff --git a/tests/cxx/parser/validation/built-in/any-type/makefile b/tests/cxx/parser/validation/built-in/any-type/makefile
index 4d3ff6e..ae6af31 100644
--- a/tests/cxx/parser/validation/built-in/any-type/makefile
+++ b/tests/cxx/parser/validation/built-in/any-type/makefile
@@ -34,7 +34,7 @@ genf := $(xsd:.xsd=-pskel.hxx) $(xsd:.xsd=-pskel.ixx) $(xsd:.xsd=-pskel.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-validation
+$(gen): xsd_options += --generate-validation
$(gen): $(out_root)/xsd/xsd
$(call include-dep,$(dep),$(obj),$(gen))
diff --git a/tests/cxx/parser/validation/choice/makefile b/tests/cxx/parser/validation/choice/makefile
index cf38433..685a388 100644
--- a/tests/cxx/parser/validation/choice/makefile
+++ b/tests/cxx/parser/validation/choice/makefile
@@ -34,7 +34,7 @@ genf := $(xsd:.xsd=-pskel.hxx) $(xsd:.xsd=-pskel.ixx) $(xsd:.xsd=-pskel.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-validation
+$(gen): xsd_options += --generate-validation
$(gen): $(out_root)/xsd/xsd
$(call include-dep,$(dep),$(obj),$(gen))
diff --git a/tests/cxx/parser/validation/restriction/makefile b/tests/cxx/parser/validation/restriction/makefile
index 5f58a0b..91d5b20 100644
--- a/tests/cxx/parser/validation/restriction/makefile
+++ b/tests/cxx/parser/validation/restriction/makefile
@@ -34,7 +34,7 @@ genf := $(xsd:.xsd=-pskel.hxx) $(xsd:.xsd=-pskel.ixx) $(xsd:.xsd=-pskel.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-validation
+$(gen): xsd_options += --generate-validation
$(gen): $(out_root)/xsd/xsd
$(call include-dep,$(dep),$(obj),$(gen))
diff --git a/tests/cxx/parser/validation/sequence/makefile b/tests/cxx/parser/validation/sequence/makefile
index 995c2f2..de47942 100644
--- a/tests/cxx/parser/validation/sequence/makefile
+++ b/tests/cxx/parser/validation/sequence/makefile
@@ -34,7 +34,7 @@ genf := $(xsd:.xsd=-pskel.hxx) $(xsd:.xsd=-pskel.ixx) $(xsd:.xsd=-pskel.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-validation
+$(gen): xsd_options += --generate-validation
$(gen): $(out_root)/xsd/xsd
$(call include-dep,$(dep),$(obj),$(gen))
diff --git a/tests/cxx/tree/binary/cdr/makefile b/tests/cxx/tree/binary/cdr/makefile
index 9298961..235c88e 100644
--- a/tests/cxx/tree/binary/cdr/makefile
+++ b/tests/cxx/tree/binary/cdr/makefile
@@ -37,7 +37,7 @@ genf := $(xsd:.xsd=.hxx) $(xsd:.xsd=.ixx) $(xsd:.xsd=.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-insertion ACE_OutputCDR \
+$(gen): xsd_options += --generate-insertion ACE_OutputCDR \
--generate-extraction ACE_InputCDR
$(gen): $(out_root)/xsd/xsd
diff --git a/tests/cxx/tree/binary/polymorphic/makefile b/tests/cxx/tree/binary/polymorphic/makefile
index cca1e2c..acb4ef6 100644
--- a/tests/cxx/tree/binary/polymorphic/makefile
+++ b/tests/cxx/tree/binary/polymorphic/makefile
@@ -37,7 +37,7 @@ genf := $(xsd:.xsd=.hxx) $(xsd:.xsd=.ixx) $(xsd:.xsd=.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-polymorphic --root-element-last \
+$(gen): xsd_options += --generate-polymorphic --root-element-last \
--generate-insertion ACE_OutputCDR --generate-extraction ACE_InputCDR
$(gen): $(out_root)/xsd/xsd
diff --git a/tests/cxx/tree/binary/xdr/makefile b/tests/cxx/tree/binary/xdr/makefile
index bf37c4b..ae90fbe 100644
--- a/tests/cxx/tree/binary/xdr/makefile
+++ b/tests/cxx/tree/binary/xdr/makefile
@@ -33,7 +33,7 @@ genf := $(xsd:.xsd=.hxx) $(xsd:.xsd=.ixx) $(xsd:.xsd=.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-insertion XDR --generate-extraction XDR
+$(gen): xsd_options += --generate-insertion XDR --generate-extraction XDR
$(gen): $(out_root)/xsd/xsd
$(call include-dep,$(dep),$(obj),$(gen))
diff --git a/tests/cxx/tree/built-in/makefile b/tests/cxx/tree/built-in/makefile
index e30789f..7da5185 100644
--- a/tests/cxx/tree/built-in/makefile
+++ b/tests/cxx/tree/built-in/makefile
@@ -35,7 +35,7 @@ gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := \
+$(gen): xsd_options += \
--char-type char \
--generate-inline \
--generate-ostream \
diff --git a/tests/cxx/tree/chameleon/makefile b/tests/cxx/tree/chameleon/makefile
index 59f2a7e..96c10e3 100644
--- a/tests/cxx/tree/chameleon/makefile
+++ b/tests/cxx/tree/chameleon/makefile
@@ -34,7 +34,7 @@ genf := $(xsd:.xsd=.hxx) $(xsd:.xsd=.ixx) $(xsd:.xsd=.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --root-element root --generate-ostream
+$(gen): xsd_options += --root-element root --generate-ostream
$(gen): $(out_root)/xsd/xsd
$(call include-dep,$(dep),$(obj),$(gen))
diff --git a/tests/cxx/tree/comparison/makefile b/tests/cxx/tree/comparison/makefile
index be76d46..e9c1bce 100644
--- a/tests/cxx/tree/comparison/makefile
+++ b/tests/cxx/tree/comparison/makefile
@@ -34,7 +34,7 @@ genf := $(xsd:.xsd=.hxx) $(xsd:.xsd=.ixx) $(xsd:.xsd=.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-comparison
+$(gen): xsd_options += --generate-comparison
$(gen): $(out_root)/xsd/xsd
$(call include-dep,$(dep),$(obj),$(gen))
diff --git a/tests/cxx/tree/compilation/makefile b/tests/cxx/tree/compilation/makefile
index 72769f2..a963b16 100644
--- a/tests/cxx/tree/compilation/makefile
+++ b/tests/cxx/tree/compilation/makefile
@@ -34,7 +34,7 @@ genf := $(xsd:.xsd=.hxx) $(xsd:.xsd=.ixx) $(xsd:.xsd=.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-serialization
+$(gen): xsd_options += --generate-serialization
$(gen): $(out_root)/xsd/xsd
$(call include-dep,$(dep),$(obj),$(gen))
diff --git a/tests/cxx/tree/complex/ctor/makefile b/tests/cxx/tree/complex/ctor/makefile
index 64ae848..3b30d09 100644
--- a/tests/cxx/tree/complex/ctor/makefile
+++ b/tests/cxx/tree/complex/ctor/makefile
@@ -34,7 +34,7 @@ genf := $(xsd:.xsd=.hxx) $(xsd:.xsd=.ixx) $(xsd:.xsd=.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-default-ctor --generate-from-base-ctor \
+$(gen): xsd_options += --generate-default-ctor --generate-from-base-ctor \
--generate-doxygen --generate-polymorphic --polymorphic-type-all \
--generate-comparison
$(gen): $(out_root)/xsd/xsd
diff --git a/tests/cxx/tree/containment/makefile b/tests/cxx/tree/containment/makefile
index ea1a160..efa2c3d 100644
--- a/tests/cxx/tree/containment/makefile
+++ b/tests/cxx/tree/containment/makefile
@@ -34,7 +34,7 @@ genf := $(xsd:.xsd=.hxx) $(xsd:.xsd=.ixx) $(xsd:.xsd=.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-default-ctor
+$(gen): xsd_options += --generate-default-ctor
$(gen): $(out_root)/xsd/xsd
$(call include-dep,$(dep),$(obj),$(gen))
diff --git a/tests/cxx/tree/default/general/makefile b/tests/cxx/tree/default/general/makefile
index 3c555ac..d752ea2 100644
--- a/tests/cxx/tree/default/general/makefile
+++ b/tests/cxx/tree/default/general/makefile
@@ -34,7 +34,7 @@ genf := $(xsd:.xsd=.hxx) $(xsd:.xsd=.ixx) $(xsd:.xsd=.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-ostream --generate-serialization \
+$(gen): xsd_options += --generate-ostream --generate-serialization \
--generate-default-ctor --generate-from-base-ctor
$(gen): $(out_root)/xsd/xsd
diff --git a/tests/cxx/tree/default/omit/makefile b/tests/cxx/tree/default/omit/makefile
index 53dd1d1..ece237b 100644
--- a/tests/cxx/tree/default/omit/makefile
+++ b/tests/cxx/tree/default/omit/makefile
@@ -34,7 +34,7 @@ genf := $(xsd:.xsd=.hxx) $(xsd:.xsd=.ixx) $(xsd:.xsd=.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-ostream --generate-serialization \
+$(gen): xsd_options += --generate-ostream --generate-serialization \
--generate-default-ctor --generate-from-base-ctor --omit-default-attributes
$(gen): $(out_root)/xsd/xsd
diff --git a/tests/cxx/tree/detach/makefile b/tests/cxx/tree/detach/makefile
index 44668a2..333ba85 100644
--- a/tests/cxx/tree/detach/makefile
+++ b/tests/cxx/tree/detach/makefile
@@ -34,7 +34,7 @@ genf := $(xsd:.xsd=.hxx) $(xsd:.xsd=.ixx) $(xsd:.xsd=.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-detach --generate-default-ctor
+$(gen): xsd_options += --generate-detach --generate-default-ctor
$(gen): $(out_root)/xsd/xsd
$(call include-dep,$(dep),$(obj),$(gen))
diff --git a/tests/cxx/tree/encoding/char/iso-8859-1/makefile b/tests/cxx/tree/encoding/char/iso-8859-1/makefile
index 701c20e..75e8814 100644
--- a/tests/cxx/tree/encoding/char/iso-8859-1/makefile
+++ b/tests/cxx/tree/encoding/char/iso-8859-1/makefile
@@ -34,7 +34,7 @@ genf := $(xsd:.xsd=.hxx) $(xsd:.xsd=.ixx) $(xsd:.xsd=.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --char-encoding iso8859-1 --generate-serialization \
+$(gen): xsd_options += --char-encoding iso8859-1 --generate-serialization \
--generate-doxygen
$(gen): $(out_root)/xsd/xsd
diff --git a/tests/cxx/tree/encoding/char/lcp/makefile b/tests/cxx/tree/encoding/char/lcp/makefile
index a7a4b82..5e3fdde 100644
--- a/tests/cxx/tree/encoding/char/lcp/makefile
+++ b/tests/cxx/tree/encoding/char/lcp/makefile
@@ -34,7 +34,7 @@ genf := $(xsd:.xsd=.hxx) $(xsd:.xsd=.ixx) $(xsd:.xsd=.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-serialization --char-encoding lcp
+$(gen): xsd_options += --generate-serialization --char-encoding lcp
$(gen): $(out_root)/xsd/xsd
$(call include-dep,$(dep),$(obj),$(gen))
diff --git a/tests/cxx/tree/encoding/char/utf-8/makefile b/tests/cxx/tree/encoding/char/utf-8/makefile
index 2224d85..03bebf3 100644
--- a/tests/cxx/tree/encoding/char/utf-8/makefile
+++ b/tests/cxx/tree/encoding/char/utf-8/makefile
@@ -34,7 +34,7 @@ genf := $(xsd:.xsd=.hxx) $(xsd:.xsd=.ixx) $(xsd:.xsd=.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-serialization --generate-doxygen
+$(gen): xsd_options += --generate-serialization --generate-doxygen
$(gen): $(out_root)/xsd/xsd
$(call include-dep,$(dep),$(obj),$(gen))
diff --git a/tests/cxx/tree/encoding/wchar/makefile b/tests/cxx/tree/encoding/wchar/makefile
index dd601ca..31cc326 100644
--- a/tests/cxx/tree/encoding/wchar/makefile
+++ b/tests/cxx/tree/encoding/wchar/makefile
@@ -34,7 +34,7 @@ genf := $(xsd:.xsd=.hxx) $(xsd:.xsd=.ixx) $(xsd:.xsd=.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-serialization --generate-doxygen \
+$(gen): xsd_options += --generate-serialization --generate-doxygen \
--char-type wchar_t
$(gen): $(out_root)/xsd/xsd
diff --git a/tests/cxx/tree/enumeration/ctor/makefile b/tests/cxx/tree/enumeration/ctor/makefile
index 4837e7c..afa7e2f 100644
--- a/tests/cxx/tree/enumeration/ctor/makefile
+++ b/tests/cxx/tree/enumeration/ctor/makefile
@@ -34,7 +34,7 @@ genf := $(xsd:.xsd=.hxx) $(xsd:.xsd=.ixx) $(xsd:.xsd=.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-default-ctor --generate-from-base-ctor \
+$(gen): xsd_options += --generate-default-ctor --generate-from-base-ctor \
--generate-doxygen
$(gen): $(out_root)/xsd/xsd
diff --git a/tests/cxx/tree/enumeration/inheritance/makefile b/tests/cxx/tree/enumeration/inheritance/makefile
index 5677adc..0b01665 100644
--- a/tests/cxx/tree/enumeration/inheritance/makefile
+++ b/tests/cxx/tree/enumeration/inheritance/makefile
@@ -34,7 +34,7 @@ genf := $(xsd:.xsd=.hxx) $(xsd:.xsd=.ixx) $(xsd:.xsd=.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-ostream
+$(gen): xsd_options += --generate-ostream
$(gen): $(out_root)/xsd/xsd
$(call include-dep,$(dep),$(obj),$(gen))
diff --git a/tests/cxx/tree/float/makefile b/tests/cxx/tree/float/makefile
index 230d682..facef41 100644
--- a/tests/cxx/tree/float/makefile
+++ b/tests/cxx/tree/float/makefile
@@ -34,7 +34,7 @@ genf := $(xsd:.xsd=.hxx) $(xsd:.xsd=.ixx) $(xsd:.xsd=.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-serialization --root-element-all
+$(gen): xsd_options += --generate-serialization --root-element-all
$(gen): $(out_root)/xsd/xsd
$(call include-dep,$(dep),$(obj),$(gen))
diff --git a/tests/cxx/tree/list/ctor/makefile b/tests/cxx/tree/list/ctor/makefile
index 8cfde68..8907229 100644
--- a/tests/cxx/tree/list/ctor/makefile
+++ b/tests/cxx/tree/list/ctor/makefile
@@ -34,7 +34,7 @@ genf := $(xsd:.xsd=.hxx) $(xsd:.xsd=.ixx) $(xsd:.xsd=.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-default-ctor --generate-from-base-ctor \
+$(gen): xsd_options += --generate-default-ctor --generate-from-base-ctor \
--generate-doxygen
$(gen): $(out_root)/xsd/xsd
diff --git a/tests/cxx/tree/name-clash/inheritance/makefile b/tests/cxx/tree/name-clash/inheritance/makefile
index d6258ab..c826fd4 100644
--- a/tests/cxx/tree/name-clash/inheritance/makefile
+++ b/tests/cxx/tree/name-clash/inheritance/makefile
@@ -34,7 +34,7 @@ genf := $(xsd:.xsd=.hxx) $(xsd:.xsd=.ixx) $(xsd:.xsd=.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-ostream
+$(gen): xsd_options += --generate-ostream
$(gen): $(out_root)/xsd/xsd
$(call include-dep,$(dep),$(obj),$(gen))
diff --git a/tests/cxx/tree/naming/camel/makefile b/tests/cxx/tree/naming/camel/makefile
index b7f862f..2d9db6b 100644
--- a/tests/cxx/tree/naming/camel/makefile
+++ b/tests/cxx/tree/naming/camel/makefile
@@ -35,7 +35,7 @@ gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := \
+$(gen): xsd_options += \
--type-naming ucc \
--function-naming lcc \
--generate-ostream \
diff --git a/tests/cxx/tree/naming/java/makefile b/tests/cxx/tree/naming/java/makefile
index a7d8b29..7f798a9 100644
--- a/tests/cxx/tree/naming/java/makefile
+++ b/tests/cxx/tree/naming/java/makefile
@@ -35,7 +35,7 @@ gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := \
+$(gen): xsd_options += \
--type-naming java \
--function-naming java \
--generate-ostream \
diff --git a/tests/cxx/tree/naming/knr/makefile b/tests/cxx/tree/naming/knr/makefile
index 0baf083..b6a5c36 100644
--- a/tests/cxx/tree/naming/knr/makefile
+++ b/tests/cxx/tree/naming/knr/makefile
@@ -35,7 +35,7 @@ gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := \
+$(gen): xsd_options += \
--type-naming knr \
--function-naming knr \
--generate-ostream \
diff --git a/tests/cxx/tree/polymorphism/comparison/makefile b/tests/cxx/tree/polymorphism/comparison/makefile
index 5fe465f..de9dcdd 100644
--- a/tests/cxx/tree/polymorphism/comparison/makefile
+++ b/tests/cxx/tree/polymorphism/comparison/makefile
@@ -34,7 +34,7 @@ genf := $(xsd:.xsd=.hxx) $(xsd:.xsd=.ixx) $(xsd:.xsd=.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-polymorphic --polymorphic-type base \
+$(gen): xsd_options += --generate-polymorphic --polymorphic-type base \
--generate-comparison
$(gen): $(out_root)/xsd/xsd
diff --git a/tests/cxx/tree/polymorphism/ostream/makefile b/tests/cxx/tree/polymorphism/ostream/makefile
index daf31ce..f38fcbd 100644
--- a/tests/cxx/tree/polymorphism/ostream/makefile
+++ b/tests/cxx/tree/polymorphism/ostream/makefile
@@ -34,7 +34,7 @@ genf := $(xsd:.xsd=.hxx) $(xsd:.xsd=.ixx) $(xsd:.xsd=.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-polymorphic --polymorphic-type-all \
+$(gen): xsd_options += --generate-polymorphic --polymorphic-type-all \
--root-element root --generate-ostream
$(gen): $(out_root)/xsd/xsd
diff --git a/tests/cxx/tree/polymorphism/same-type/makefile b/tests/cxx/tree/polymorphism/same-type/makefile
index 3c66ef5..4e434c0 100644
--- a/tests/cxx/tree/polymorphism/same-type/makefile
+++ b/tests/cxx/tree/polymorphism/same-type/makefile
@@ -34,7 +34,7 @@ genf := $(xsd:.xsd=.hxx) $(xsd:.xsd=.ixx) $(xsd:.xsd=.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-ostream --generate-polymorphic \
+$(gen): xsd_options += --generate-ostream --generate-polymorphic \
--root-element root
$(gen): $(out_root)/xsd/xsd
diff --git a/tests/cxx/tree/prefix/makefile b/tests/cxx/tree/prefix/makefile
index 304ceef..c7b2314 100644
--- a/tests/cxx/tree/prefix/makefile
+++ b/tests/cxx/tree/prefix/makefile
@@ -34,7 +34,7 @@ genf := $(xsd:.xsd=.hxx) $(xsd:.xsd=.ixx) $(xsd:.xsd=.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-serialization --generate-polymorphic \
+$(gen): xsd_options += --generate-serialization --generate-polymorphic \
--polymorphic-type foo\#base --root-element root
$(gen): $(out_root)/xsd/xsd
diff --git a/tests/cxx/tree/test-template/makefile b/tests/cxx/tree/test-template/makefile
index 9fdec91..b4ff5f2 100644
--- a/tests/cxx/tree/test-template/makefile
+++ b/tests/cxx/tree/test-template/makefile
@@ -34,7 +34,7 @@ genf := $(xsd:.xsd=.hxx) $(xsd:.xsd=.ixx) $(xsd:.xsd=.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-ostream
+$(gen): xsd_options += --generate-ostream
$(gen): $(out_root)/xsd/xsd
$(call include-dep,$(dep),$(obj),$(gen))
diff --git a/tests/cxx/tree/types-only/makefile b/tests/cxx/tree/types-only/makefile
index 4b19ab7..0ccb70e 100644
--- a/tests/cxx/tree/types-only/makefile
+++ b/tests/cxx/tree/types-only/makefile
@@ -34,7 +34,7 @@ genf := $(xsd:.xsd=.hxx) $(xsd:.xsd=.ixx) $(xsd:.xsd=.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --suppress-parsing
+$(gen): xsd_options += --suppress-parsing
$(gen): $(out_root)/xsd/xsd
$(call include-dep,$(dep),$(obj),$(gen))
diff --git a/tests/cxx/tree/union/ctor/makefile b/tests/cxx/tree/union/ctor/makefile
index 53b1055..3c08eaa 100644
--- a/tests/cxx/tree/union/ctor/makefile
+++ b/tests/cxx/tree/union/ctor/makefile
@@ -34,7 +34,7 @@ genf := $(xsd:.xsd=.hxx) $(xsd:.xsd=.ixx) $(xsd:.xsd=.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-default-ctor --generate-from-base-ctor \
+$(gen): xsd_options += --generate-default-ctor --generate-from-base-ctor \
--generate-doxygen
$(gen): $(out_root)/xsd/xsd
diff --git a/tests/cxx/tree/wildcard/makefile b/tests/cxx/tree/wildcard/makefile
index 0886cf2..4a0e70d 100644
--- a/tests/cxx/tree/wildcard/makefile
+++ b/tests/cxx/tree/wildcard/makefile
@@ -34,7 +34,7 @@ genf := $(xsd:.xsd=.hxx) $(xsd:.xsd=.ixx) $(xsd:.xsd=.cxx)
gen := $(addprefix $(out_base)/,$(genf))
$(gen): xsd := $(out_root)/xsd/xsd
-$(gen): xsd_options := --generate-wildcard --generate-default-ctor \
+$(gen): xsd_options += --generate-wildcard --generate-default-ctor \
--generate-from-base-ctor --generate-serialization --generate-comparison
$(gen): $(out_root)/xsd/xsd