Filter raw linker flags from GBL_LIBRARIES

[f3sch]

currently GBL exports: /home/fschlepp/alice/sw/ubuntu2404_x86-64/GBL/V03-01-04-4/lib/libGBL.so;-L/local/workspace/DailyBuilds/DailyO2-ubuntu2404/daily-tags.BsAuSDt8F5/ubuntu2404_x86-64/ROOT/v6-36-04-alice9-10/lib;-lCore;-lImt;-lRIO;-lNet;-lHist;-lGraf;-lGraf3d;-lGpad;-lROOTVecOps;-lTree;-lTreePlayer;-lRint;-lPostscript;-lMatrix;-lPhysics;-lMathCore;-lThread;-lROOTNTuple;-lMultiProc;-lROOTDataFrame;-lROOTNTupleUtil;Eigen3::Eigen

which leads to link failures

This removes all the -l flags from the library.

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[ktf]

Suggested change

	if(NOT _lib MATCHES "^-[lL]")
	if(TARGET "${_lib}" OR IS_ABSOLUTE "${_lib}" OR NOT _lib MATCHES "^-")

[ktf]

how about this?

[ktf]

there might be -Wl,... linker options, BTW...

[f3sch]

thanks for the suggestion, how about I split the linker options and flags like this:

set(GBL_LIBRARIES_FILTERED "")
set(GBL_LINK_OPTIONS "")
foreach(_lib IN LISTS GBL_LIBRARIES)
    if(_lib MATCHES "^-[lL]")
        continue()
    elseif(_lib MATCHES "^-")
        list(APPEND GBL_LINK_OPTIONS "${_lib}")
    else()
        list(APPEND GBL_LIBRARIES_FILTERED "${_lib}")
    endif()
endforeach()

add_library(GBL::GBL INTERFACE IMPORTED)
target_include_directories(GBL::GBL INTERFACE ${GBL_INCLUDE_DIR})
target_link_libraries(GBL::GBL INTERFACE
    ${GBL_LIBRARIES_FILTERED}
    Eigen3::Eigen
)
target_link_options(GBL::GBL INTERFACE ${GBL_LINK_OPTIONS})

[ktf]

yeah, looks good.