Honour preset LD_LIBRARY_PATH etc. in gbuild, too

There is always the question whether we should add in front or after any
existing value.  I add after here, mainly to keep gb_Helper_extend_ld_path
consistent and simple.

Also, WNT_INTEL_MSC JunitTest was causing the Java code to call soffice with
empty (instead of unaugmented) PATH.

Change-Id: I3888c0a9085cee7052eb6ea1ed7bbf4a2ea14408

solenv/gbuild/platform/NETBSD_INTEL_GCC.mk

@@ -34,7 +34,7 @@ include $(GBUILDDIR)/platform/unxgcc.mk
 
 NB_ADD_LIBPATH := /usr/pkg/lib:/usr/X11R7/lib
 
-gb_Helper_set_ld_path := LD_LIBRARY_PATH=$(OUTDIR_FOR_BUILD)/lib:$(NB_ADD_LIBPATH)
-gb_CppunitTest_CPPTESTPRECOMMAND := LD_LIBRARY_PATH=$(OUTDIR)/lib:$(NB_ADD_LIBPATH)
+gb_Helper_set_ld_path := LD_LIBRARY_PATH=$${LD_LIBRARY_PATH:+:$$LD_LIBRARY_PATH}$(OUTDIR_FOR_BUILD)/lib:$(NB_ADD_LIBPATH)
+gb_CppunitTest_CPPTESTPRECOMMAND := LD_LIBRARY_PATH=$${LD_LIBRARY_PATH:+:$$LD_LIBRARY_PATH}$(OUTDIR)/lib:$(NB_ADD_LIBPATH)
 
 # vim: set noet sw=4:

solenv/gbuild/platform/NETBSD_X86_64_GCC.mk

@@ -33,7 +33,7 @@ include $(GBUILDDIR)/platform/unxgcc.mk
 
 NB_ADD_LIBPATH := /usr/pkg/lib:/usr/X11R7/lib
 
-gb_Helper_set_ld_path := LD_LIBRARY_PATH=$(OUTDIR_FOR_BUILD)/lib:$(NB_ADD_LIBPATH)
-gb_CppunitTest_CPPTESTPRECOMMAND := LD_LIBRARY_PATH=$(OUTDIR)/lib:$(NB_ADD_LIBPATH)
+gb_Helper_set_ld_path := LD_LIBRARY_PATH=$${LD_LIBRARY_PATH:+:$$LD_LIBRARY_PATH}$(OUTDIR_FOR_BUILD)/lib:$(NB_ADD_LIBPATH)
+gb_CppunitTest_CPPTESTPRECOMMAND := LD_LIBRARY_PATH=$${LD_LIBRARY_PATH:+:$$LD_LIBRARY_PATH}$(OUTDIR)/lib:$(NB_ADD_LIBPATH)
 
 # vim: set noet sw=4:

solenv/gbuild/platform/WNT_INTEL_MSC.mk

@@ -642,7 +642,7 @@ endif # OOO_TEST_SOFFICE
 define gb_JunitTest_JunitTest_platform
 $(call gb_JunitTest_get_target,$(1)) : DEFS := \
 	-Dorg.openoffice.test.arg.soffice="$$$${OOO_TEST_SOFFICE:-path:$(OUTDIR)/installation/opt/program/soffice.exe}" \
-	-Dorg.openoffice.test.arg.env=PATH \
+	-Dorg.openoffice.test.arg.env=PATH="$$$$PATH" \
 	-Dorg.openoffice.test.arg.user=file:///$(call gb_JunitTest_get_userdir,$(1))
 
 endef

solenv/gbuild/platform/com_GCC_defs.mk

@@ -152,7 +152,7 @@ else
 gb_Helper_LIBRARY_PATH_VAR := LD_LIBRARY_PATH
 endif
 
-gb_Helper_set_ld_path := $(gb_Helper_LIBRARY_PATH_VAR)="$(OUTDIR_FOR_BUILD)/lib"
+gb_Helper_set_ld_path := $(gb_Helper_LIBRARY_PATH_VAR)=$${$(gb_Helper_LIBRARY_PATH_VAR):+:$$$(gb_Helper_LIBRARY_PATH_VAR)}"$(OUTDIR_FOR_BUILD)/lib"
 
 # $(1): list of directory pathnames to append at the end of the ld path
 define gb_Helper_extend_ld_path

solenv/gbuild/platform/macosx.mk

@@ -396,7 +396,7 @@ endef
 define gb_JunitTest_JunitTest_platform
 $(call gb_JunitTest_get_target,$(1)) : DEFS := \
 	-Dorg.openoffice.test.arg.soffice="$$$${OOO_TEST_SOFFICE:-path:$(DEVINSTALLDIR)/opt/LibreOffice.app/Contents/MacOS/soffice}" \
-	-Dorg.openoffice.test.arg.env=DYLD_LIBRARY_PATH \
+	-Dorg.openoffice.test.arg.env=DYLD_LIBRARY_PATH"$$$${DYLD_LIBRARY_PATH+=$$$$DYLD_LIBRARY_PATH}" \
 	-Dorg.openoffice.test.arg.user=file://$(call gb_JunitTest_get_userdir,$(1)) \
 	-Dorg.openoffice.test.arg.workdir=$(call gb_JunitTest_get_userdir,$(1)) \
 

solenv/gbuild/platform/solaris.mk

@@ -382,7 +382,7 @@ endif
 
 define gb_JunitTest_JunitTest_platform
 $(call gb_JunitTest_get_target,$(1)) : DEFS := \
-	-Dorg.openoffice.test.arg.env=$(gb_Helper_LIBRARY_PATH_VAR) \
+	-Dorg.openoffice.test.arg.env=$(gb_Helper_LIBRARY_PATH_VAR)"$$$${$(gb_Helper_LIBRARY_PATH_VAR)+=$$$$$(gb_Helper_LIBRARY_PATH_VAR)}" \
 	-Dorg.openoffice.test.arg.user=file://$(call gb_JunitTest_get_userdir,$(1)) \
 	-Dorg.openoffice.test.arg.workdir=$(call gb_JunitTest_get_userdir,$(1)) \
 	-Dorg.openoffice.test.arg.postprocesscommand=$(GBUILDDIR)/platform/unxgcc_gdbforjunit.sh \

solenv/gbuild/platform/unxgcc.mk

@@ -377,7 +377,7 @@ endif
 
 define gb_JunitTest_JunitTest_platform
 $(call gb_JunitTest_get_target,$(1)) : DEFS := \
-	-Dorg.openoffice.test.arg.env=$(gb_Helper_LIBRARY_PATH_VAR) \
+	-Dorg.openoffice.test.arg.env=$(gb_Helper_LIBRARY_PATH_VAR)"$$$${$(gb_Helper_LIBRARY_PATH_VAR)+=$$$$$(gb_Helper_LIBRARY_PATH_VAR)}" \
 	-Dorg.openoffice.test.arg.user=file://$(call gb_JunitTest_get_userdir,$(1)) \
 	-Dorg.openoffice.test.arg.workdir=$(call gb_JunitTest_get_userdir,$(1)) \
 	-Dorg.openoffice.test.arg.postprocesscommand=$(GBUILDDIR)/platform/unxgcc_gdbforjunit.sh \