[Libreoffice] gbuild: use gb_CHECKOBJECTOWNER to check for double linked objects

[Bjoern Michaelsen]

Hi all,

you can now run:

 make -sr gb_CHECKOBJECTOWNER=T

in a module or in the source root (add "-f GNUmakefile.mk" in source
root). It will then check for objects that are linked in multiple
libraries, which is:

a) not really supported in gbuild and likely does not what you intend 
b) should be considered evil anyway
c) should at least use a static library, if absolutely unavoidable

Currently the output from the global makefile is:
CxxObject/framework/source/services/uriabbreviation.o is linked in by Library/libfwklx.so Library/libfwllx.so
CxxObject/sc/source/ui/attrdlg/attrdlg.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/attrdlg/scdlgfact.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/attrdlg/scuiexp.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/attrdlg/tabpages.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/cctrl/editfield.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/dbgui/dapidata.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/dbgui/dapitype.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/dbgui/dpgroupdlg.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/dbgui/pfiltdlg.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/dbgui/pvfundlg.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/dbgui/scendlg.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/dbgui/scuiasciiopt.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/dbgui/scuiimoptdlg.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/dbgui/sortdlg.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/dbgui/subtdlg.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/dbgui/textimportoptions.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/dbgui/tpsort.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/dbgui/tpsubt.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/dbgui/validate.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/docshell/tpstat.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/miscdlgs/crdlg.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/miscdlgs/datafdlg.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/miscdlgs/delcldlg.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/miscdlgs/delcodlg.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/miscdlgs/filldlg.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/miscdlgs/groupdlg.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/miscdlgs/inscldlg.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/miscdlgs/inscodlg.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/miscdlgs/instbdlg.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/miscdlgs/lbseldlg.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/miscdlgs/linkarea.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/miscdlgs/mtrindlg.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/miscdlgs/mvtabdlg.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/miscdlgs/namecrea.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/miscdlgs/namepast.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/miscdlgs/scuiautofmt.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/miscdlgs/shtabdlg.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/miscdlgs/strindlg.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/miscdlgs/tabbgcolordlg.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/miscdlgs/textdlgs.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/optdlg/opredlin.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/optdlg/tpcalc.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/optdlg/tpcompatibility.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/optdlg/tpformula.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/optdlg/tpprint.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/optdlg/tpusrlst.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/optdlg/tpview.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/pagedlg/hfedtdlg.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/pagedlg/scuitphfedit.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/pagedlg/tphf.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/pagedlg/tptable.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sc/source/ui/styleui/styledlg.o is linked in by Library/libsclx.so Library/libscuilx.so
CxxObject/sw/source/core/undo/SwRewriter.o is linked in by Library/libswlx.so Library/libswuilx.so
CxxObject/sw/source/filter/basflt/iodetect.o is linked in by Library/libswlx.so Library/libswdlx.so
CxxObject/tools/bootstrp/appdef.o is linked in by Executable/mkunroll Executable/rscdep Executable/sspretty
CxxObject/tools/bootstrp/cppdep.o is linked in by Executable/mkunroll Executable/rscdep Executable/sspretty
CxxObject/tools/bootstrp/inimgr.o is linked in by Executable/mkunroll Executable/rscdep Executable/sspretty
CxxObject/tools/bootstrp/prj.o is linked in by Executable/mkunroll Executable/rscdep Executable/sspretty
/striped/bjoern/checkouts/libreoffice/upstream/master/solenv/gbuild/extensions/final_ObjectOwner.mk:43: *** duplicate linked objects.  Stop.

I have not enabled that in the default build, as it uses some pretty
long strings in GNU make and should not be needed on every build. And
yes, this is using the "final extension" just introduced.

Best,

Bjoern

-- 
https://launchpad.net/~bjoern-michaelsen