Building and install GCC 8.3.0, OpenBSD 7.2 on DEC Alpha EV5

[Mark Butt]

Hi Everyone,

I have OpenBSD 7.2 installed and running on an AlphaServer 4100.  DEC Alpha EV5 processors.
No major issues with getting it running on this old hardware other than a slight bug one of the developers over at OpenBSD squashed for me.

I have been having great success with building modern tools and software on the system.  No problems at all.  Except for one…

A particular piece of software I am trying to build requires GCC 8.3.0 which is much newer than the version that comes with OpenBSD.  I am attempting to build and install GCC 8.3.0 in a separate location from the main system compiler as OpenBSD doesn’t usually take kindly to having its system compiler version changed. 

I have used the gcc-8.3.0 included script to download and extract the dependancies that GCC will need.  I have also downloaded, compiled and installed the latest version of binutils.  Installed to /usr/local

These are the configure and make commands I am using, and I am running this in a location NOT in the source tree.

bash-5.2# pwd
/u01/software/gcc/build-gcc-8.3.0

bash-5.2# ../gcc-8.3.0/configure CFLAGS="-I/usr/include -I/usr/local/include" LDFLAGS="-L/usr/lib -L/usr/local/lib" --disable-multilib --disable-cet --enable-language=c,c++ --prefix=/usr/local --disable-nls

bash-5.2# /usr/local/bin/make

Things appear to go well for quite a while (two 300Mhz processors), then the make dies with:

gcc -c -DHAVE_CONFIG_H -I/usr/include -I/usr/local/include  -I. -I../../../gcc-8.3.0/libiberty/../include  -W -Wall -Wwrite-strings -Wc++-compat -Wstr10:31:49 [22/1989]
dantic  -D_GNU_SOURCE ../../../gcc-8.3.0/libiberty/objalloc.c -o objalloc.o
../../../gcc-8.3.0/libiberty/objalloc.c: In function 'objalloc_create’:
../../../gcc-8.3.0/libiberty/objalloc.c:95: error: 'PTR' undeclared (first use in this function) 
../../../gcc-8.3.0/libiberty/objalloc.c:95: error: (Each undeclared identifier is reported only once 
../../../gcc-8.3.0/libiberty/objalloc.c:95: error: for each function it appears in.)
../../../gcc-8.3.0/libiberty/objalloc.c:95: error: expected ';' before ‘malloc'
../../../gcc-8.3.0/libiberty/objalloc.c: At top level: 
../../../gcc-8.3.0/libiberty/objalloc.c:115: error: expected '=', ',', ';', 'asm' or '__attribute__' before ‘_objalloc_alloc'
../../../gcc-8.3.0/libiberty/objalloc.c:198: error: expected declaration specifiers or '...' before ‘PTR'
../../../gcc-8.3.0/libiberty/objalloc.c:199: error: conflicting types for ‘objalloc_free_block'
../../../gcc-8.3.0/libiberty/../include/objalloc.h:113: error: previous declaration of 'objalloc_free_block' was here
../../../gcc-8.3.0/libiberty/objalloc.c: In function 'objalloc_free_block’:
../../../gcc-8.3.0/libiberty/objalloc.c:201: error: 'block' undeclared (first use in this function)
../../../gcc-8.3.0/libiberty/objalloc.c:260: error: 'PTR' undeclared (first use in this function)
../../../gcc-8.3.0/libiberty/objalloc.c:260: error: expected ';' before ‘first'
../../../gcc-8.3.0/libiberty/objalloc.c:290: error: expected ';' before ‘p'
make[3]: *** [Makefile:1041: objalloc.o] Error 1
make[3]: Leaving directory '/u01/software/gcc/build-gcc-8.3.0/build-alpha-unknown-openbsd7.2/libiberty'
make[2]: *** [Makefile:2645: all-build-libiberty] Error 2
make[2]: Leaving directory '/u01/software/gcc/build-gcc-8.3.0'
make[1]: *** [Makefile:26838: stage1-bubble] Error 2
make[1]: Leaving directory '/u01/software/gcc/build-gcc-8.3.0'
make: *** [Makefile:952: all] Error 2


I took a look at ../gcc-8.3.0/libiberty/objalloc.c  and it appears to be having issues with:
Line 95 referenced in the error above:  ret->chunks = (PTR) malloc (CHUNK_SIZE);

This could entirely be down to me going about this endeavour the wrong way.  I have been doing a lot of reading, and experimenting over the past two weeks… but not much luck getting past this.  I have tried the default shell for OpenBSD as well as the bash shell noted above incase there was something about the bash install I did… I have a personal preference towards bash :) 

If anyone sees this and has an “A-HA!” moment about what could be wrong, I would certainly appreciate any assistance you could offer.

Thanks all and enjoy the weekend!
-M
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