diff options
Diffstat (limited to 'libbuild2/cc/common.cxx')
| -rw-r--r-- | libbuild2/cc/common.cxx | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/libbuild2/cc/common.cxx b/libbuild2/cc/common.cxx index 0af9531..c423c37 100644 --- a/libbuild2/cc/common.cxx +++ b/libbuild2/cc/common.cxx @@ -1609,5 +1609,54 @@ namespace build2 return r; } + + void common:: + append_diag_color_options (cstrings& args) const + { + switch (cclass) + { + case compiler_class::msvc: + { + // Note: see init_diag logic if enabling anything here (probably + // need an "override disable" mode or some such). + // + break; + } + case compiler_class::gcc: + { + // Enable/disable diagnostics color unless a custom option is + // specified. + // + // Supported from GCC 4.9 and (at least) from Clang 3.5. Clang + // supports -f[no]color-diagnostics in addition to the GCC's + // spelling. + // + if (ctype == compiler_type::gcc ? cmaj > 4 || (cmaj == 4 && cmin >= 9) : + ctype == compiler_type::clang ? cmaj > 3 || (cmaj == 3 && cmin >= 5) : + false) + { + if (!(find_option_prefix ("-fdiagnostics-color", args) || + find_option ("-fno-diagnostics-color", args) || + find_option ("-fdiagnostics-plain-output", args) || + (ctype == compiler_type::clang && + (find_option ("-fcolor-diagnostics", args) || + find_option ("-fno-color-diagnostics", args))))) + { + // Omit -fno-diagnostics-color if stderr is not a terminal (we + // know there will be no color in this case and the option will + // just add noise, for example, in build logs). + // + if (const char* o = ( + show_diag_color () ? "-fdiagnostics-color" : + stderr_term ? "-fno-diagnostics-color" : + nullptr)) + args.push_back (o); + } + } + + break; + } + } + } } } |