41 lines
1.5 KiB
Plaintext
41 lines
1.5 KiB
Plaintext
General:
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--------
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A new library, libpfc.a, has been created for linking programs
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written in mixed pascal, fortran, and C. This library contains
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routines to invoke startup and cleanup for both fortran and
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pascal runtime facilities.
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The library may be used as an option by either the f77 or pc
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command. F77 and pc should optionally include the libraries of
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the other language when linking a program containing both f77
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and pascal object files.
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Source changes are done in the f77 and pc library directories,
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and are bracketed by #ifdef LIBPFC so that the normal pascal
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and f77 libraries are unaffected.
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libpfc.a itself is built in its own directory, and all sources
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are accessed by symbolic links. It is assumed that all of the
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relevant directories exist at the same level in /usr/src/usr.lib/.
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Pascal library source changes:
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------------------------------
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(PCSTART.c, PCEXIT.c): The routines PCSTART() and PCEXIT() have
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been changed to conditionally call their Fortran counterparts
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(f_init() and f_exit()), and set Fortran's copies of argc and
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argv (called xargc and xargv, respectively).
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F77 library source changes:
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---------------------------
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(main.c): The function main() is modified to conditionally
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call PCSTART and PCEXIT instead of f_init() and f_exit().
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Note that this change is only required by fortran main programs,
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since the pascal compiler generates main() in-line.
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(s_stop.c): s_stop() is modified like main(), to conditionally
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call PCEXIT() instead of f_exit().
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