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- Path: sparky!uunet!spool.mu.edu!agate!usenet.ins.cwru.edu!murphy!ljo
- From: ljo@murphy.eeap.cwru.edu (L. Jonas Olsson)
- Newsgroups: comp.unix.bsd
- Subject: Re: gcc-2.3.2 and kernel build
- Date: 29 Dec 1992 20:31:26 GMT
- Organization: Case Western Reserve Univ. Cleveland, Ohio (USA)
- Lines: 82
- Message-ID: <1hqciuINN620@usenet.INS.CWRU.Edu>
- References: <RANDY.92Dec28095652@dsndata.dsndata.com>
- NNTP-Posting-Host: murphy.eeap.cwru.edu
-
- In article <RANDY.92Dec28095652@dsndata.dsndata.com> randy@dsndata.dsndata.com (Randy Terbush) writes:
- >I have sucessfully built gcc-2.3.2 on 386BSD, and have begun to use it
- >to build other packages, and the kernel.
-
- (Now gcc-2.3.3 is the latest release, and it is available in compiled
- form from the directory ref.tfs.com:/usr/packages/gcc/gcc)
- But it is also very easy to build yourself.
-
- 1. ./configure i386--bsd --with-gnu-ld
- 2. make LANGUAGES=c (the make will exit when compiling enquire.c, but
- that is the last step in the make so you can ignore it)
- 3. make stage1
- 4. make "CC=./stage1/xgcc -B./stage1/" CFLAGS="-g -O" (enquire will have
- error code 4, meaning that four values in float.h are inexact. The
- values are DBL_MIN, DBL_MAX, LDBL_MIN, and LDBL_MAX)
- 5. make stage2
- 6. make "CC=./stage2/xgcc -B./stage2/" CFLAGS="-g -O"(enquire will have
- error code 4, meaning that four values in float.h are inexact. The
- values are DBL_MIN, DBL_MAX, LDBL_MIN, and LDBL_MAX)
- 7. make compare
- 8. edit float.h to change the mantissas of DBL_MIN and DBL_MAX so
- that they end in 14 and 57 respectively. I don't know what the
- correct values for LDBL_MIN and LDBL_MAX are.
- 9. make install "CC=./stage2/xgcc -B./stage2/" CFLAGS="-g -O"
- 10. make install-libobjc "CC=./stage2/xgcc -B./stage2/" CFLAGS="-g -O"
-
- (If you're short of disk space you have to read INSTALL)
- (If you're short of RAM and/or swap space you can try to replace your
- malloc routines in libc.a with the gnu malloc routines. On my system
- this results in gcc and several other large programs using only
- half as much data-space. For example with gcc -dm aprog.c you can
- see how much data gcc is using. I don't know why the data size is
- decreased and if the new malloc routines will break some other programs)
-
- >I am tripping over many problems created by running fixincludes, and
- >using the resulting include files. What experiences are others
- >having? 'fixincludes' used gnu 'sed' on my system since I have found
- >some problems with the supplied 'sed'.
-
- I think that fixincludes is not needed on 386BSD. The standard include
- files is (or at least should be) ANSI C compatible. If they do need to
- be fixed that should be considered a bug in 386BSD.
-
- Also in the gcc-2.4 (that should be the next one I think) there will
- a new way of fixing the include files. Now there is the fixincludes
- script that is part of gcc and a complete set of new include files
- that is part of libg++-2.3. In the new gcc this should be replaced
- by a method to generate ANSI C and C++ compatible include files
- from the system include files.
-
- The reason that libg++-2.3 doesn't have 386BSD support is that the
- changes needed to it's supplied include files are to large. Hopefully
- the new gcc/libg++ (I don't know when they will be released) will
- support 386BSD. (If you wish to get libg++-2.3 running you have to
- get the patches from ref.tfs.com:/usr/packages/libg++/libg++)
-
- >gcc-2.3.2 did find some slight problems in ../../isa/pccons.c with
- >missing '=' in scantokey and extscantokey tables.
-
- The remains of an attempt to compile the system, except kernel, with
- gcc2 is at ref.tfs.com:/usr/386BSD_with-gcc2. The patch to ldexp.c
- that is there is probably incorrect so the other patch that was
- posted here recently should be used. There might also be other
- problems with the patches. The patches makes it possible to compile
- everything with gcc2, but some programs might be broken due to
- incompatible asm() statements, gcc bugs (in either old or new compiler),
- or for any other reason. One program that breaks is awk, but as this is
- the GNU gawk it should perhaps be replaced by the latest version anyway.
-
- >I will follow up with fixes as soon as I get uucp and Emacs up.
- >
- >-Randy
- >
- >Randy Terbush ------------------------------------- Design Data, Inc.
- >UUCP: netcomsv!dsndata!randy ---------------------- 1033 'O' st. Suite 324
- >INET: randyt@oto.unl.edu -------------------------- Lincoln, NE 68508
- >--------------------------------------------------- 402-476-8278
-
- Jonas Olsson
- ljo@po.cwru.edu
-
-
-