Build configuration compatibility

To facilitate the building of applications that are currently built with GCC or Clang, IBM® Open XL C/C++ for AIX® 17.1.2 provides compatibility utilities. These utilities offer compatibility for the most common options of corresponding GCC and Clang utilities, allowing them to be seamlessly used as drop-in replacements in your build process.

The utilities in the /opt/IBM/openxlC/17.1.2/compat/gnu directory offer build compatibility for the following GNU tools:
  • ar
  • c++filt
  • cpp
  • dwarfdump
  • g++
  • gcc
  • nm
  • objdump
  • ranlib
The utilities in the /opt/IBM/openxlC/17.1.2/compat/llvm directory offer build compatibility for the following LLVM tools:
  • clang
  • clang++
  • clang-cpp
  • llvm-ar
  • llvm-cxxfilt
  • llvm-dwarfdump
  • llvm-nm
  • llvm-objdump
  • llvm-profdata
  • llvm-ranlib
Notes:
  • These utilities offer compatibility with the corresponding GCC and Clang utilities commonly found in the build files of most open-source applications.
  • These utilities are wrappers for the corresponding utilities in IBM Open XL C/C++ for AIX 17.1.2. Find the supported utilities of IBM Open XL C/C++ for AIX 17.1.2 in Utilities and commands.
  • These utilities are designed for use in entire builds. Do not mix C++ objects built with these compatibility g++ wrapper utilities with C++ object files built with GNU g++ utilities.
  • To use these utilities, add the /opt/IBM/openxlC/17.1.2/compat/gnu or /opt/IBM/openxlC/17.1.2/compat/llvm directory to the beginning of your $PATH environment variable. Alternatively, you can directly specify these directories in your build system. See the following example:
    export PATH=/opt/IBM/openxlC/17.1.2/compat/llvm:$PATH
./configure