fdo#51115: fix sdext extensions on Windows:

The sdext extensions contain the .lib link stub instead of DLLs;
add gb_Extension_add_library to get the correct DLL filename on Windows,
and use it in presenter screen, presentation minimizer and
PDF import extensions.

Change-Id: Ie8113a6002f9038e4df798edc255208977ba9497

sdext/Extension_minimizer.mk

@@ -31,8 +31,8 @@ $(eval $(call gb_Extension_Extension,presentation-minimizer,sdext/source/minimiz
 
 $(eval $(call gb_Extension_set_platform,presentation-minimizer,$(sdext_PLATFORM)))
 
-$(eval $(call gb_Extension_add_files,presentation-minimizer,,\
-    $(call gb_Library_get_target,SunPresentationMinimizer) \
+$(eval $(call gb_Extension_add_libraries,presentation-minimizer,\
+    SunPresentationMinimizer \
 ))
 
 $(eval $(call gb_Extension_add_file,presentation-minimizer,components.rdb,$(call gb_Rdb_get_target,minimizer)))

sdext/Extension_pdfimport.mk

@@ -33,9 +33,12 @@ $(eval $(call gb_Extension_set_platform,pdfimport,$(sdext_PLATFORM)))
 
 $(eval $(call gb_Extension_add_file,pdfimport,components.rdb,$(call gb_Rdb_get_target,pdfimport)))
 
+$(eval $(call gb_Extension_add_libraries,pdfimport,\
+    pdfimport \
+))
+
 $(eval $(call gb_Extension_add_files,pdfimport,,\
     $(call gb_Executable_get_target,xpdfimport) \
-    $(call gb_Library_get_target,pdfimport) \
     $(SRCDIR)/sdext/source/pdfimport/config/pdf_import_filter.xcu \
     $(SRCDIR)/sdext/source/pdfimport/config/pdf_types.xcu \
     $(SRCDIR)/sdext/source/pdfimport/dialogs/xpdfimport_err.pdf \

sdext/Extension_presenter.mk

@@ -31,8 +31,8 @@ $(eval $(call gb_Extension_Extension,presenter-screen,sdext/source/presenter))
 
 $(eval $(call gb_Extension_set_platform,presenter-screen,$(sdext_PLATFORM)))
 
-$(eval $(call gb_Extension_add_files,presenter-screen,,\
-    $(call gb_Library_get_target,PresenterScreen) \
+$(eval $(call gb_Extension_add_libraries,presenter-screen,\
+    PresenterScreen \
 ))
 
 $(eval $(call gb_Extension_add_file,presenter-screen,components.rdb,$(call gb_Rdb_get_target,presenter)))

solenv/gbuild/Extension.mk

@@ -156,6 +156,16 @@ $(foreach file,$(3),$(call gb_Extension_add_file,$(1),$(if $(strip $(2)),$(strip
 
 endef
 
+# add a library from the solver; DO NOT use gb_Library_get_target
+define gb_Extension_add_library
+$(call gb_Extension_add_file,$(1),$(call gb_Library_get_runtime_filename,$(2)),\
+	$(gb_Helper_OUTDIRLIBDIR)/$(call gb_Library_get_runtime_filename,$(2)))
+endef
+
+define gb_Extension_add_libraries
+$(foreach lib,$(2),$(call gb_Extension_add_library,$(1),$(lib)))
+endef
+
 # localize .properties file
 # source file is copied to $(WORKDIR)
 define gb_Extension_localize_properties