Dear libtoolers, the macro _LT_SYS_HIDDEN_LIBDEPS sets the _LT_TAGDECLs
predep_objects, postdep_objects, predeps (always empty), postdeps, compiler_lib_search_dirs, and compiler_lib_search_path. _LT_SYS_HIDDEN_LIBDEPS is expanded for CXX and FC only.It uses $output_verbose_link_cmd to determine the values of the above variables. output_verbose_link_cmd is set in _LT_LANG_CXX_CONFIG and _LT_DARWIN_LINKER_FEATURES only. Thus, if there is no CXX and we are not on DARWIN, output_verbose_link_cmd in not set and for FC the above variables are not set.
Is this coupling between FC and CXX and FC and DARWIN intended?What is the purpose of these variables? I'm sure there is a purpose, as _LT_LANG_CXX_CONFIG takes quite some effort to set output_verbose_link_cmd, 13 times in total. But why extract libs and path from the verbose linker output of the CXX compiler, if we use the same compiler for linking later on (at least this is what I experience on Linux)? What is different for C, F77, GCJ, and GO that we don't need to evaluate the verbose linker output there? Do we need the variables for FC?
BTW, _LT_SYS_HIDDEN_LIBDEPS contains code for F77, GCJ, and GO that is never used as _LT_SYS_HIDDEN_LIBDEPS is not expanded for these tags.
Thanks, Christian -- Christian Feld Jülich Supercomputing Centre 📧 c.f...@fz-juelich.de http://www.fz-juelich.de/jsc --------------------------------------------------------------------------------------------- --------------------------------------------------------------------------------------------- Forschungszentrum Jülich GmbH 52425 Jülich Sitz der Gesellschaft: Jülich Eingetragen im Handelsregister des Amtsgerichts Düren Nr. HR B 3498 Vorsitzender des Aufsichtsrats: MinDir Stefan Müller Geschäftsführung: Prof. Dr. Astrid Lambrecht (Vorsitzende), Dr. Stephanie Bauer (stellv. Vorsitzende), Prof. Dr. Ir. Pieter Jansens --------------------------------------------------------------------------------------------- ---------------------------------------------------------------------------------------------
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