Bug#925040: gcc-8 FTCBFS: builds idgen.c with the wrong compiler

[Matthias Klose <doko@debian.org>]

Control: tags -1 - upstream

no, this is fixed in gcc-9/trunk.

On 19.03.19 15:45, Helmut Grohne wrote:
> Source: gcc-8
> Version: 8.3.0-2
> Tags: patch upstream
> User: helmutg@debian.org
> Usertags: rebootstrap
> 
> gcc-8 fails to cross build from source.
> 
> http://crossqa.subdivi.de/build/gcc-8_8.3.0-2_ppc64el_20190301030546.log
> | powerpc64le-linux-gnu-g++-8 -fno-PIE -c -g -O2 -DIN_GCC -fno-exceptions -fno-rtti -fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -DHAVE_CONFIG_H -I. -Id -I../../src/gcc -I../../src/gcc/d -I../../src/gcc/../include -I../../src/gcc/../libcpp/include -I../../src/gcc/../libdecnumber -I../../src/gcc/../libdecnumber/dpd -I../libdecnumber -I../../src/gcc/../libbacktrace -o d/idgen.dmdgen.o -MT d/idgen.dmdgen.o -MMD -MP -MF d/.deps/idgen.dmdgen.TPo -I../../src/gcc/d -I../../src/gcc/d/dfrontend -Id ../../src/gcc/d/dfrontend/idgen.c
> | g++    -o d/idgen d/idgen.dmdgen.o
> | /usr/bin/ld: d/idgen.dmdgen.o: Relocations in generic ELF (EM: 21)
> | /usr/bin/ld: d/idgen.dmdgen.o: Relocations in generic ELF (EM: 21)
> | /usr/bin/ld: d/idgen.dmdgen.o: Relocations in generic ELF (EM: 21)
> | /usr/bin/ld: d/idgen.dmdgen.o: Relocations in generic ELF (EM: 21)
> | /usr/bin/ld: d/idgen.dmdgen.o: Relocations in generic ELF (EM: 21)
> | /usr/bin/ld: d/idgen.dmdgen.o: Relocations in generic ELF (EM: 21)
> | /usr/bin/ld: d/idgen.dmdgen.o: Relocations in generic ELF (EM: 21)
> | /usr/bin/ld: d/idgen.dmdgen.o: Relocations in generic ELF (EM: 21)
> | /usr/bin/ld: d/idgen.dmdgen.o: error adding symbols: file in wrong format
> | collect2: error: ld returned 1 exit status
> | make[4]: *** [../../src/gcc/d/Make-lang.in:312: d/idgen] Error 1
> | make[4]: Leaving directory '/<<PKGBUILDDIR>>/build/gcc'
> | make[3]: *** [Makefile:4305: all-gcc] Error 2
> | make[3]: Leaving directory '/<<PKGBUILDDIR>>/build'
> | make[2]: *** [Makefile:907: all] Error 2
> | make[2]: Leaving directory '/<<PKGBUILDDIR>>/build'
> 
> It uses the host architecture compiler to compile idgen.c and then tries
> to link it with the build architecture compiler. It really wants to run
> idgen, so using the build architecture compiler is correct. The attached
> patch fixes that and makes gcc-8 cross buildable. Please consider
> applying it.
> 
> Helmut
>