configuration - Building 32 bit GCC from source on 64 bit: linking issue - 


/usr/bin/ld: i386:x86-64 architecture of input file `build/gengenrtl.o' incompatible i386 output /usr/bin/ld: i386:x86-64 architecture of input file `build/errors.o' incompatible i386 output /usr/bin/ld: build/gengenrtl.o: file class elfclass64 incompatible elfclass32 /usr/bin/ld: final link failed: file in wrong format collect2: error: ld returned 1 exit status

i don't if problem ld or given library.

my configuration is

 cc="gcc -m32" \  cflags="-m32" \  ld="<path>/bin/32/binutils/2.23.2/bin/ld" \  ldflags="-m32" \  ./configure \  --build=i586-pc-linux-gnu \  --host=i586-pc-linux-gnu \  --target=i586-pc-linux-gnu \  --enable-shared \  --enable-static \  --enable-languages=c,c++ \  --enable-bootstrap \  --prefix=<path>/bin/32/gcc/i586 \  --disable-stage1-checking \   --with-gmp=<path>/lib/32/gmp/5.1.2 \  --with-mpfr=<path>/lib/32/mpfr/3.1.2 \  --with-mpc=<path>/lib/32/mpc/1.0.1 \  --with-cloog=<path>/lib/32/cloog/0.18.0 \  --without-ppl

apparently can't change ld executable easily, gcc keeps compiling global system /usr/bin/ld.

someone can going on here , how fix linking phase ?

i'm under ubuntu 64 bit , i'm trying compile 32 bit build of gcc, of course have compiler gmp, mpc, mpfr 32 bits.

of course can build gcc source 32-bit, using 64-bit os, compiler , linker. problem not "ld".

you're doing right thing: specifying "-m32" in cflags , ldflags.

the problem build/gengenrtl.o , build/errors.o appear have been built 64-bit (instead of 32-bit).

suggestions:

1) check makefile, , check build log. see if there's "different" build commands 2 files.

2) use "nm" command verify rest of *.o object files correctly built 32-bit - "gengenrtl.o" , "errors.o" (incorrectly) built elfclass64.

'hope helps...


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