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      1 Tests for config.rpath and lib-link.m4.
      2 
      3 rpath-1 w
      4         |
      5         +---- a = static, b = shared
      6 
      7 rpath-2 u v w
      8         | | |
      9         | | +---- a = static/static, b = static/shared,
     10         | |       c = shared/static, d = shared/shared.
     11         | |
     12         | +------ a = all libraries and the program have the same prefix,
     13         |         b = the libraries are in different directories.
     14         |
     15         +-------- a = all shared libraries use the libtool *.la files for
     16                   resolving dependencies, b = dependencies are given as
     17                   AC_LIB_LINKFLAGS argument instead.
     18 
     19 rpath-3 u v w
     20         | | |
     21         | | +---- a = static/static/static, b = static/static/shared,
     22         | |       c = static/shared/static, d = static/shared/shared,
     23         | |       e = shared/static/static, f = shared/static/shared,
     24         | |       g = shared/shared/static, h = shared/shared/shared.
     25         | |
     26         | +------ a = all libraries and the program have the same prefix,
     27         |         b = the libraries are in different directories.
     28         |
     29         +-------- a = all shared libraries use the libtool *.la files for
     30                   resolving dependencies, b = dependencies are given as
     31                   AC_LIB_LINKFLAGS argument instead.
     32 
     33 The rpath-2* tests are sensitive to
     34   - incomplete shared library support in the system,
     35   - bugs in libtool that creates the shared libraries,
     36   - bugs in lib-link.m4.
     37 
     38 The rpath-3* tests are sensitive to
     39   - incomplete shared library support in the system,
     40   - bugs in libtool that creates the shared libraries.
     41 
     42 Known failures:
     43 
     44 * On all platforms supporting shared libraries,
     45     rpath-3aae rpath-3aag
     46     rpath-3abe rpath-3abg
     47   fail. This is a libtool 1.4.2 bug: When a shared library depends on a
     48   static library indirectly through two different dependency paths,
     49   libtool attempts to link together invalid sets of object files.
     50 
     51 * OSF/1 4.0: the tests
     52     rpath-2bbd
     53     rpath-3bbd rpath-3bbf rpath-3bbg rpath-3bbh
     54   fail, because -rpath options are not cumulative:
     55   The last -rpath option overrides all previous ones. One would need to
     56   pass all directories, separated by colons, in a single -rpath option.
     57 
     58 * On Linux/x86_64: the tests
     59     rpath-2aac rpath-2abc rpath-2bac rpath-2bbc
     60     rpath-3aac rpath-3aaf rpath-3abc rpath-3abf
     61     rpath-3bac rpath-3bae rpath-3baf rpath-3bag
     62     rpath-3bbc rpath-3bbe rpath-3bbf rpath-3bbg
     63   fail, because code from static libraries not compiled with -fPIC cannot
     64   be integrated into shared libraries: linker error about relocations.
     65 
     66 * Solaris: the tests
     67     rpath-3bae rpath-3bbe
     68     rpath-3aaf rpath-3abf
     69     rpath-3baf rpath-3bbf
     70   fail, because code from static libraries not compiled with -fPIC cannot
     71   be integrated into shared libraries: linker error "Text relocation remains".
     72 
     73 * Cygwin: The tests
     74     rpath-2aac rpath-2abc
     75     rpath-3aac rpath-3aaf
     76     rpath-3abc rpath-3abf
     77   fail.
     78 
     79