[Gcl-devel] gcl-2.6.12 link failures (after upgrade to gcc-5.3?)

[Andrey G. Grozin]

Hello *,

After recent upgrades, I cannot compile gcl-2.6.12:

x86_64-pc-linux-gnu-gcc -Wl,-O1 -Wl,--as-needed -Wl,-T 
../unixport/gcl.script -o raw_pre_gcl  -L.  -Wl,-Map raw_pre_gcl_map 
-lpre_gcl -lX11    -lm -ldl  -lgmp -lreadline -lc -lgclp
./libpre_gcl.a(nfunlink.o): In function `m__gmpz_add':
nfunlink.c:(.text+0x37e0): multiple definition of `m__gmpz_add'
./libpre_gcl.a(main.o):main.c:(.text+0x2190): first defined here

<a huge number of multiple definitions skipped>

./libpre_gcl.a(main.o): In function `minimize_image':
main.c:(.text+0xbf4): undefined reference to `set_tm_maxpage'
main.c:(.text+0xee2): undefined reference to `mbrk'
main.c:(.text+0xfbf): undefined reference to `mbrk'
main.c:(.text+0xfcf): undefined reference to `mbrk'
main.c:(.text+0x10bc): undefined reference to `mbrk'
main.c:(.text+0x10cc): undefined reference to `mbrk'
./libpre_gcl.a(main.o):main.c:(.text+0x11c8): more undefined references to 
`mbrk' follow

<many undefined references skipped>

collect2: error: ld returned 1 exit status
makefile:172: recipe for target 'raw_pre_gcl_map' failed
make[1]: *** [raw_pre_gcl_map] Error 1
make[1]: Leaving directory 
'/var/tmp/portage/dev-lisp/gcl-2.6.12/work/gcl/unixport'
makefile:71: recipe for target 'unixport/saved_pre_gcl' failed
make: *** [unixport/saved_pre_gcl] Error 2

Any ideas how to proceed?

Andrey