home *** CD-ROM | disk | FTP | other *** search
-
- Last modified: Sat Mar 25 21:27:58 1995
-
- For GPC-1.1*
- and GCC version 2.6.*
-
- This is a short installation quide for the gnu pascal compiler:
-
- 0) Unpack gpc snapshot. The file is a GNU Zip compressed
- tar file. The distribution creates a new subdirectory
- named after the GCC version number it is based on,
- and writes the files there, e.g. a directory "2.6.3"
- for gpc version running with GCC 2.6.3.
-
- Note: Earlier snapshots unpacked all files to the current
- directory.
-
- 1) compile gcc. It must be the same version as the one GPC is
- implemented with.
-
- Leave the objects in place, since GPC will directly load
- most of the GCC object files.
-
- Install the GNU C compiler. At least install it so that the
- "xgcc" program will be able to locate the libgcc.a file with
- "xgcc --print-libgcc-file-name" command. This is to find
- out where gpc Makefile should put libgpc.a and gpc1.
-
- 2) cd to gpc object directory. It should NOT be
- the same as the GPC source directory. You'll need
- a make that understands VPATH variable. GNU Make does.
-
- Gpc will later be integrated to the gcc distribution
- and then will compile like the other GNU compilers.
-
- If you have some kind of magic error during compiltion,
- e.g. some rts/file can not be generated, please use GNU
- make. If you do, and you get errors like that send me mail.
-
- 3) In the gpc object directory, run the "configure" program
- from gpc source directory.
-
- Do not use "--prefix" flag unless you have to. If you do not
- use it, gpc will install itself to the same directory where
- gcc has been installed before.
-
- To make this easy, I use the shell script DOCONF.example to
- configure gpc.
-
- This shell script gives the --gccsrc and --gccdir
- switches to gpc configure program. To use it, you should
- create file GCC-VERSION that contains only the version
- number of gcc (it's used in the pathnames), e.g. 2.6.0
-
- NOTE: Do *not* use absolute path names in gccdir or gccsrc
- symlinks!!!
-
- The configure script then generates a Makefile to your
- current directory from the Makefile.in in the distribution.
-
- Note that the gpc configure script does not want to
- have the usual host-vendor-system spec, since GPC is
- compiled for the same system than GCC was.
-
- 4) Say "make -n" to see if everything is ok.
-
- 5) After it is, you just say "make" to make the compiler
- and run time system.
-
- NOTE: For alpha OSF/1 v3.2 (GCC 2.6.3):
- If your linker starts to output error messagaes like:
-
- Warning: Linking some objects which contain exception information sections
- and some which do not. This may cause fatal runtime exception handling
- problems (last obj encountered without exceptions was <OBJ/LIB>)
-
- I do not know why these started to appear, but you can
- get rid of these if you do as follows in the GPC object
- directory.
-
- You need to trigger the Makefile dependencies, e.g. by
- doing the touch command below. What happens is that it
- re-generates the version.c and rts/version.c files, which
- need to be recompiled with ALPHA_BUG defined.
-
- Example:
- % touch Makefile
- % make MY_CFLAGS=-DALPHA_BUG other-make-flags-you-want-to-use
-
- 6) The run time system is quite portable, but I have not
- tested it on a pure System V, and it may require
- some modifications. My current development system is a
- i486 Mach 3.0 + BSD single server.
-
- The rts has been compiled in: aix,osf 1,mach ux,linux,
- ultrix,hp-ux,minix,etc...
-
- 7) When everything compiles, you can verify what the
- "make -n install" command does, and if you are satisfied
- run it without the -n option to install the compiler (gpc1),
- front end (gpc), run time system (libgpc.a) to the same
- place where gcc was installed.
-
- It is sort of stupid to have a separate incarnation
- of gcc.c; the difference now is that "gpc"
- also searches from library "libgpc.a and -lm".
- In addition gcc.c specifies the interface to the
- Pascal compiler (gpc1). This command will vanish when
- "gcc" knows how to compile Pascal programs.
-
- 8) While compiling, browse through COPYING, README, GPC.NOTES
- and PROBLEMS to see what you are getting.
-
- 9) If you make modifications/bug fixes, please send
- them back to me so that we can make this a better compiler.
-
- Juki
- jtv@hut.fi
-
- *---------------------------------------------------------------------------*
- jtv@hut.fi Jukka Virtanen
- Jukka.Virtanen@hut.fi Helsinki University of Technology
- juki@hut.fi Computing Centre
- SF-02150, Espoo, FINLAND
- tel. +358 0 4514315
- Fax. +358 0 464788
-
- -----------------------------------------------------------------------------
-