On Mon, 2023-11-13 at 10:24 +0000, Dingjun Chen wrote: > Hi, guys, > > You are experts in glibc libraries, and I need your help. As mentioned > before I have cross gcc/g++ compilers: > 'i686-linux-musl-gcc.exe' > 'i686-linux-musl-g++.exe' > > They were built by crosstool-NG 1.26.0 on X86_64 host machine with gcc > 13.2 under Cygwin and target machine i686 with Linux kernel 2.4.36.9 > and MUSL. > > I applied this cross compiler to build our C++ application codes. > There is no problem with compilation, but there is a problem with > linker 'ld'. Please see below and for more details please see the > attached text file : > > ........................................................ > ...................................................... > <built-in>: note: this is the location of the previous definition > [100%] Linking CXX executable > /home/Dingjun.Chen/DAQ_XYZCross2_cmake_v5/bin/vtem_xyz > /home/Dingjun.Chen/x-tools/HOST-x86_64-pc-cygwin/i686-linux- > musl/bin/../lib/gcc/i686-linux-musl/13.2.0/../../../../i686-linux- > musl/bin/ld: warning: libm.so.6, needed by > /home/Dingjun.Chen/DAQ_XYZCross2_cmake_v5/lib/libvga.so, not found > (try using -rpath or -rpath-link) > /home/Dingjun.Chen/x-tools/HOST-x86_64-pc-cygwin/i686-linux- > musl/bin/../lib/gcc/i686-linux-musl/13.2.0/../../../../i686-linux- > musl/bin/ld: warning: libc.so.6, needed by > /home/Dingjun.Chen/DAQ_XYZCross2_cmake_v5/lib/libvga.so, not found > (try using -rpath or -rpath-link) /* snip */ No. Glibc is not "our" project, GCC and Glibc are two separate projects. Generally you cannot link an executable using a libc to a library using another libc. This is not only limited to Glibc vs. Musl. For some examples: If libfoo.so is built with Glibc-2.38 but then you want to link an executable with libfoo.so and libc.so from Glibc-2.36, the link may fail. On Windows if an executable and a dll required by the executable uses different versions of msvcrt, the program will likely just crash at runtime. -- Xi Ruoyao <xry111@xxxxxxxxxxx> School of Aerospace Science and Technology, Xidian University
