On Fri, 23 Sept 2022 at 02:36, alexandre schenberg via Gcc-help <gcc-help@xxxxxxxxxxx> wrote: > > Hi. I am facing a series of error messages when trying to build it with multilib. > > /usr/bin/ld: skipping incompatible /media/34GB/Arquivos-de-Programas-Linux/Gcc-4.9.4/lib32//libgcc_s.so when searching for -lgcc_s > /usr/bin/ld: skipping incompatible /media/34GB/Arquivos-de-Programas-Linux/Gcc-4.9.4/lib32//libgcc_s.so when searching for -lgcc_s > checking for default BUILD_CONFIG... bootstrap-debug > checking for --enable-vtable-verify... no > /usr/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-linux-gnu/4.4.3/libgcc.a when searching for -lgcc > /usr/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-linux-gnu/4.4.3/libgcc.a when searching for -lgcc > /usr/bin/ld: cannot find -lgcc > collect2: ld returned 1 exit status > configure: error: I suspect your system does not have 32-bit developement libraries (libc and headers). If you have them, rerun configure with --enable-multilib. If you do not have them, and want to build a 64-bit-only compiler, rerun configure with --disable-multilib. > > This trying to run configure with: > > LDFLAGS=-L/media/34GB/Arquivos-de-Programas-Linux/Gcc-4.9.4/lib32/ ../configure --prefix=/media/34GB/Arquivos-de-Programas-Linux/Gcc-4.9.4 --disable-checking --enable-languages=c,c++ --enable-multiarch --enable-multlib --with-multilib-list=m32,m64 --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu > > If I remove the LDFLAGS above I receive: > > /usr/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-linux-gnu/4.4.3/libgcc.a when searching for -lgcc > /usr/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-linux-gnu/4.4.3/libgcc.a when searching for -lgcc > /usr/bin/ld: cannot find -lgcc > collect2: ld returned 1 exit status > configure: error: I suspect your system does not have 32-bit developement libraries (libc and headers). If you have them, rerun configure with --enable-multilib. If you do not have them, and want to build a 64-bit-only compiler, rerun configure with --disable-multilib. > > I have Gcc 4.9.4 installed in the dir mentioned above, but have a symbolic link to it on /usr/local/bin and a sym link to libstdc++.so.6.0.20 on /usr/lib32. I removed the system provided Gcc 4.4.3, but apparently it left behind libgcc.a and other stuff. No idea about why it is complaining about incompatible libgcc_s.so. > > So, what needs to be done to fix it? I'm not really sure what exactly you're doing. Which version of GCC are you trying to build, 4.9.4? I thought you said you already have that installed? If you already have a multilib GCC installed correctly, it should be able to find its own libgcc.a and libgcc_so.so without any LDFLAGS. If you aren't using GCC 4.4.3 to build, ld should not be looking in /usr/lib/gcc/x86_64-linux-gnu/4.4.3/ at all. So I would recheck your assumptions, something seems strange here. Why not just reinstall the system provided 4.4.3 and use that to build?
