4.2.1 Checking for a Compiler

The following methods can be used within a configure block to check for a working compiler:

• check_c_compiler
• check_cxx_compiler
• check_d_compiler

Each of these methods can take an optional list of compilers to check for. If such a list is supplied, the compilers are tested in the order listed. The first compiler option found which passes a compilation test is used.

Here are example calls which also show the default compiler list for each supported language:

configure do
  check_c_compiler "gcc", "clang"
  check_cxx_compiler "g++", "clang++"
  check_d_compiler "gdc", "ldc2"
end

Global configuration options may be supplied to the compiler checks as well. Example:

configure do
  check_c_compiler "x86_64-elf-gcc", on_fail: "Install x86_64-elf cross toolchain first!"
end