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    libcacard: add libcacard.la target · 44dc0ca3
    Alon Levy 提交于
    No flag to configure is required. Instead, added a libcacard.la target that
    is not built by default, only when requested explicitly via:
    
    mkdir build
    cd build
    ../configure
    make libcacard.la
    make install-libcacard
    
    Uses libtool to do actual linking of object files and shared library, and
    installing. Tested only under linux, but supposed to work on other systems as
    well.
    
    If libtool isn't found you get a message complaining about that, only at build
    time (since it is not a default target I did not add a message at configure
    time).
    
    New build artifacts:
     .libs subdirectories (at <buildroot> and <buildroot>/libcacard)
     *.lo files (at same locations as the respective o files)
    
    Added %.lo : %.c rule that uses libtool.
    Updated clean rule to clean up those artifacts.
    Added specific rule to call dtrace with libtool wrapper (note that because of
    a current upstream dtrace bug fixed by systemtap b1568fd85 commit the -fPIC flag
    isn't actually passed on. still current dtrace+libtool produced object links fine).
    If libtool is missing any of the following targets will complain and exit 1:
     any subdir: *.lo
     root and libcacard: libcacard.la, libcacard-instsall
    
    Tested to link and load with all tracing backends.
    44dc0ca3
configure 90.8 KB