gcc -v with wrapper still tries to compile something #445
Description
$ gcc -v
Using built-in specs.
COLLECT_GCC=/opt/x86_64-linux-gnu/bin/x86_64-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/opt/x86_64-linux-gnu/bin/../libexec/gcc/x86_64-linux-gnu/4.8.5/lto-wrapper
Target: x86_64-linux-gnu
Configured with: /workspace/srcdir/gcc-4.8.5/configure --prefix=/workspace/destdir --target=x86_64-linux-gnu --host=x86_64-linux-musl --build=x86_64-linux-musl --disable-multilib --disable-werror --enable-shared --enable-host-shared --enable-threads=posix --with-sysroot=/workspace/destdir/x86_64-linux-gnu/sys-root --program-prefix=x86_64-linux-gnu- --disable-bootstrap --with-arch=core2 --enable-languages=c,c++,fortran,objc,obj-c++
Thread model: posix
gcc version 4.8.5 (GCC)
COMPILER_PATH=/opt/x86_64-linux-gnu/bin/../libexec/gcc/x86_64-linux-gnu/4.8.5/:/opt/x86_64-linux-gnu/bin/../libexec/gcc/:/opt/x86_64-linux-gnu/bin/../lib/gcc/x86_64-linux-gnu/4.8.5/../../../../x86_64-linux-gnu/bin/
LIBRARY_PATH=/opt/x86_64-linux-gnu/bin/../lib/gcc/x86_64-linux-gnu/4.8.5/:/opt/x86_64-linux-gnu/bin/../lib/gcc/:/opt/x86_64-linux-gnu/bin/../lib/gcc/x86_64-linux-gnu/4.8.5/../../../../x86_64-linux-gnu/lib/../lib64/:/opt/x86_64-linux-gnu/bin/../x86_64-linux-gnu/sys-root/lib/../lib64/:/opt/x86_64-linux-gnu/bin/../x86_64-linux-gnu/sys-root/usr/lib/../lib64/:/opt/x86_64-linux-gnu/bin/../lib/gcc/x86_64-linux-gnu/4.8.5/../../../../x86_64-linux-gnu/lib/:/opt/x86_64-linux-gnu/bin/../x86_64-linux-gnu/sys-root/lib/:/opt/x86_64-linux-gnu/bin/../x86_64-linux-gnu/sys-root/usr/lib/
COLLECT_GCC_OPTIONS='-D' '_GLIBCXX_USE_CXX11_ABI=0' '-frandom-seed=0x75262c83' '-L/opt/x86_64-linux-gnu/x86_64-linux-gnu/lib64' '-march=x86-64' '-mtune=generic' '-v'
/opt/x86_64-linux-gnu/bin/../libexec/gcc/x86_64-linux-gnu/4.8.5/collect2 --sysroot=/opt/x86_64-linux-gnu/bin/../x86_64-linux-gnu/sys-root --eh-frame-hdr -m elf_x86_64 -dynamic-linker /lib64/ld-linux-x86-64.so.2 /opt/x86_64-linux-gnu/bin/../x86_64-linux-gnu/sys-root/usr/lib/../lib64/crt1.o /opt/x86_64-linux-gnu/bin/../x86_64-linux-gnu/sys-root/usr/lib/../lib64/crti.o /opt/x86_64-linux-gnu/bin/../lib/gcc/x86_64-linux-gnu/4.8.5/crtbegin.o -L/opt/x86_64-linux-gnu/x86_64-linux-gnu/lib64 -L/opt/x86_64-linux-gnu/bin/../lib/gcc/x86_64-linux-gnu/4.8.5 -L/opt/x86_64-linux-gnu/bin/../lib/gcc -L/opt/x86_64-linux-gnu/bin/../lib/gcc/x86_64-linux-gnu/4.8.5/../../../../x86_64-linux-gnu/lib/../lib64 -L/opt/x86_64-linux-gnu/bin/../x86_64-linux-gnu/sys-root/lib/../lib64 -L/opt/x86_64-linux-gnu/bin/../x86_64-linux-gnu/sys-root/usr/lib/../lib64 -L/opt/x86_64-linux-gnu/bin/../lib/gcc/x86_64-linux-gnu/4.8.5/../../../../x86_64-linux-gnu/lib -L/opt/x86_64-linux-gnu/bin/../x86_64-linux-gnu/sys-root/lib -L/opt/x86_64-linux-gnu/bin/../x86_64-linux-gnu/sys-root/usr/lib -rpath-link /opt/x86_64-linux-gnu/x86_64-linux-gnu/lib64 --build-id=sha1 -lgcc --as-needed -lgcc_s --no-as-needed -lc -lgcc --as-needed -lgcc_s --no-as-needed /opt/x86_64-linux-gnu/bin/../lib/gcc/x86_64-linux-gnu/4.8.5/crtend.o /opt/x86_64-linux-gnu/bin/../x86_64-linux-gnu/sys-root/usr/lib/../lib64/crtn.o
/opt/x86_64-linux-gnu/bin/../x86_64-linux-gnu/sys-root/usr/lib/../lib64/crt1.o: In function `_start':
/workspace/srcdir/glibc-2.12.2/csu/../sysdeps/x86_64/elf/start.S:109: undefined reference to `main'
collect2: error: ld returned 1 exit status
vs outside of BB:
gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-linux-gnu/13/lto-wrapper
OFFLOAD_TARGET_NAMES=nvptx-none:amdgcn-amdhsa
OFFLOAD_TARGET_DEFAULT=1
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu 13.3.0-6ubuntu2~24.04' --with-bugurl=file:///usr/share/doc/gcc-13/README.Bugs --enable-languages=c,ada,c++,go,d,fortran,objc,obj-c++,m2 --prefix=/usr --with-gcc-major-version-only --program-suffix=-13 --program-prefix=x86_64-linux-gnu- --enable-shared --enable-linker-build-id --libexecdir=/usr/libexec --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --enable-bootstrap --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-libstdcxx-backtrace --enable-gnu-unique-object --disable-vtable-verify --enable-plugin --enable-default-pie --with-system-zlib --enable-libphobos-checking=release --with-target-system-zlib=auto --enable-objc-gc=auto --enable-multiarch --disable-werror --enable-cet --with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic --enable-offload-targets=nvptx-none=/build/gcc-13-fG75Ri/gcc-13-13.3.0/debian/tmp-nvptx/usr,amdgcn-amdhsa=/build/gcc-13-fG75Ri/gcc-13-13.3.0/debian/tmp-gcn/usr --enable-offload-defaulted --without-cuda-driver --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu --with-build-config=bootstrap-lto-lean --enable-link-serialization=2
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 13.3.0 (Ubuntu 13.3.0-6ubuntu2~24.04)