diff options
Diffstat (limited to 'src/configure.cc')
| -rw-r--r-- | src/configure.cc | 343 |
1 files changed, 259 insertions, 84 deletions
diff --git a/src/configure.cc b/src/configure.cc index 995e340..f9513d1 100644 --- a/src/configure.cc +++ b/src/configure.cc @@ -8,8 +8,9 @@ #include <fstream> #include <optional> #include <span> - -#include <getoptpp/getoptpp.hpp> +#include <cstring> +#include <vector> +#include <deque> #include "execute.h" #include "ctor.h" @@ -18,6 +19,7 @@ #include "externals.h" #include "tools.h" #include "util.h" +#include "argparser.h" const std::filesystem::path configurationFile("configuration.cc"); const std::filesystem::path configHeaderFile("config.h"); @@ -25,17 +27,37 @@ const std::filesystem::path configHeaderFile("config.h"); std::map<std::string, std::string> external_includedir; std::map<std::string, std::string> external_libdir; +#if !defined(_WIN32) const ctor::configuration& __attribute__((weak)) ctor::get_configuration() +#else +const ctor::configuration& default_get_configuration() +#endif { static ctor::configuration cfg; static bool initialised{false}; if(!initialised) { - cfg.build_toolchain = getToolChain(cfg.get(ctor::cfg::build_cxx, "/usr/bin/g++")); + std::string cxx_prog{"c++"}; + auto cxx_env = std::getenv("CXX"); + if(cxx_env) + { + cxx_prog = cxx_env; + } + + cfg.build_toolchain = getToolChain(cfg.get(ctor::cfg::build_cxx, cxx_prog)); + initialised = true; } return cfg; } +#if defined(_WIN32) +// Hack to make ctor::get_configuration "weak" linked +// See: +// https://stackoverflow.com/questions/2290587/gcc-style-weak-linking-in-visual-studio +// and +// https://stackoverflow.com/questions/11849853/how-to-list-functions-present-in-object-file +#pragma comment(linker, "/alternatename:?get_configuration@ctor@@YAABUconfiguration@1@XZ=?default_get_configuration@@YAABUconfiguration@ctor@@XZ") +#endif namespace ctor { std::optional<std::string> includedir; @@ -69,7 +91,8 @@ bool ctor::configuration::has(const std::string& key) const return tools.find(key) != tools.end(); } -const std::string& ctor::configuration::get(const std::string& key, const std::string& default_value) const +std::string ctor::configuration::get(const std::string& key, + const std::string& default_value) const { if(key == ctor::cfg::ctor_includedir && ctor::includedir) { @@ -91,14 +114,67 @@ const std::string& ctor::configuration::get(const std::string& key, const std::s return ctor::conf_values[key]; } - if(has(key)) + if(tools.find(key) != tools.end()) { return tools.at(key); } + if(key == ctor::cfg::build_cxx) + { + auto e = std::getenv("CXX"); + if(e) + { + return e; + } + } + + if(key == ctor::cfg::build_cc) + { + auto e = std::getenv("CC"); + if(e) + { + return e; + } + } + + if(key == ctor::cfg::build_ld) + { + auto e = std::getenv("LD"); + if(e) + { + return e; + } + } + + if(key == ctor::cfg::build_ar) + { + auto e = std::getenv("AR"); + if(e) + { + return e; + } + } + return default_value; } +std::string ctor::configuration::getenv(const std::string& key) const +{ + auto envit = env.find(key); + if(envit != env.end()) + { + return envit->second; + } + + auto sysenv = std::getenv(key.data()); + if(sysenv) + { + return sysenv; + } + + return {}; +} + class Args : public std::vector<char*> { @@ -136,6 +212,9 @@ std::ostream& operator<<(std::ostream& stream, const ctor::toolchain& toolchain) case ctor::toolchain::gcc: stream << "ctor::toolchain::gcc"; break; + case ctor::toolchain::msvc: + stream << "ctor::toolchain::msvc"; + break; case ctor::toolchain::clang: stream << "ctor::toolchain::clang"; break; @@ -210,8 +289,7 @@ int regenerateCache(ctor::settings& settings, { Args vargs(args); - dg::Options opt; - int key{128}; + arg::Parser<std::string> opt(static_cast<int>(vargs.size()), vargs.data()); std::string build_arch_prefix; std::string build_path; @@ -225,91 +303,103 @@ int regenerateCache(ctor::settings& settings, std::string ctor_libdir; std::string builddir; - opt.add("build-dir", required_argument, 'b', - "Set output directory for build files (default: '" + - settings.builddir + "').", - [&]() { - settings.builddir = optarg; - builddir = optarg; + opt.add('b', "--build-dir", + std::function([&](std::string arg) + { + settings.builddir = arg; + builddir = arg; return 0; - }); + }), + "Set output directory for build files (default: '" + + settings.builddir + "')."); - opt.add("verbose", no_argument, 'v', - "Be verbose. Add multiple times for more verbosity.", - [&]() { + opt.add('v', "--verbose", + std::function([&]() + { settings.verbose++; return 0; - }); + }), + "Be verbose. Add multiple times for more verbosity."); - opt.add("cc", required_argument, key++, - "Use specified c-compiler instead of gcc.", - [&]() { - cc_prog = optarg; + opt.add({}, "--cc", + std::function([&](std::string arg) + { + cc_prog = arg; return 0; - }); + }), + "Use specified c-compiler instead of gcc."); - opt.add("cxx", required_argument, key++, - "Use specified c++-compiler instead of g++.", - [&]() { - cxx_prog = optarg; + opt.add({}, "--cxx", + std::function([&](std::string arg) + { + cxx_prog = arg; return 0; - }); + }), + "Use specified c++-compiler instead of g++."); - opt.add("ar", required_argument, key++, - "Use specified archiver instead of ar.", - [&]() { - ar_prog = optarg; + opt.add({}, "--ar", + std::function([&](std::string arg) + { + ar_prog = arg; return 0; - }); + }), + "Use specified archiver instead of ar."); - opt.add("ld", required_argument, key++, - "Use specified linker instead of ld.", - [&]() { - ld_prog = optarg; + opt.add({}, "--ld", + std::function([&](std::string arg) + { + ld_prog = arg; return 0; - }); + }), + "Use specified linker instead of ld."); - opt.add("build", required_argument, key++, - "Configure for building on specified architecture.", - [&]() { - build_arch_prefix = optarg; + opt.add({}, "--build", + std::function([&](std::string arg) + { + build_arch_prefix = arg; return 0; - }); + }), + "Configure for building on specified architecture."); - opt.add("build-path", required_argument, key++, - "Set path to build tool-chain.", - [&]() { - build_path = optarg; + opt.add({}, "--build-path", + std::function([&](std::string arg) + { + build_path = arg; return 0; - }); + }), + "Set path to build tool-chain."); - opt.add("host", required_argument, key++, - "Cross-compile to build programs to run on specified architecture.", - [&]() { - host_arch_prefix = optarg; + opt.add({}, "--host", + std::function([&](std::string arg) + { + host_arch_prefix = arg; return 0; - }); + }), + "Cross-compile to build programs to run on specified architecture."); - opt.add("host-path", required_argument, key++, - "Set path to cross-compile tool-chain.", - [&]() { - host_path = optarg; + opt.add({}, "--host-path", + std::function([&](std::string arg) + { + host_path = arg; return 0; - }); + }), + "Set path to cross-compile tool-chain."); - opt.add("ctor-includedir", required_argument, key++, - "Set path to ctor header file, used for re-compiling.", - [&]() { - ctor_includedir = optarg; + opt.add({}, "--ctor-includedir", + std::function([&](std::string arg) + { + ctor_includedir = arg; return 0; - }); + }), + "Set path to ctor header file, used for re-compiling."); - opt.add("ctor-libdir", required_argument, key++, - "Set path to ctor library file, used for re-compiling.", - [&]() { - ctor_libdir = optarg; + opt.add({}, "--ctor-libdir", + std::function([&](std::string arg) + { + ctor_libdir = arg; return 0; - }); + }), + "Set path to ctor library file, used for re-compiling."); // Resolv externals ctor::external_configurations externalConfigs; @@ -324,19 +414,21 @@ int regenerateCache(ctor::settings& settings, auto add_path_args = [&](const std::string& arg_name) { - opt.add(arg_name + "-includedir", required_argument, key++, - "Set path to " + arg_name + " header file.", - [&]() { - external_includedir[arg_name] = optarg; + opt.add({}, "--" + arg_name + "-includedir", + std::function([&](std::string arg) + { + external_includedir[arg_name] = arg; return 0; - }); + }), + "Set path to " + arg_name + " header file."); - opt.add(arg_name + "-libdir", required_argument, key++, - "Set path to " + arg_name + " libraries.", - [&]() { - external_libdir[arg_name] = optarg; + opt.add({}, "--" + arg_name + "-libdir", + std::function([&](std::string arg) + { + external_libdir[arg_name] = arg; return 0; - }); + }), + "Set path to " + arg_name + " libraries."); }; for(const auto& ext : externalConfigs) @@ -356,18 +448,57 @@ int regenerateCache(ctor::settings& settings, } - opt.add("help", no_argument, 'h', - "Print this help text.", - [&]() { + opt.add('h', "--help", + std::function([&]() -> int + { std::cout << "Configure how to build with " << name << "\n"; std::cout << "Usage: " << name << " configure [options]\n\n"; std::cout << "Options:\n"; opt.help(); exit(0); - return 0; - }); + }), + "Print this help text."); + + opt.set_err_cb( + [&](arg::error err, std::string_view arg) + { + switch(err) + { + case arg::error::invalid_arg: + std::cerr << opt.prog_name() << + ": invalid argument for option '" << arg << "'\n"; + std::cerr << "Type '" << opt.prog_name() << + " -h' for more information.\n"; + break; - opt.process(static_cast<int>(vargs.size()), vargs.data()); + case arg::error::missing_arg: + std::cerr << opt.prog_name() << ": option requires and argument '" << + arg << "'\n"; + std::cerr << "Type '" << opt.prog_name() << + " -h' for more information.\n"; + break; + + case arg::error::invalid_opt: + std::cerr << opt.prog_name() << ": invalid option '" << arg << "'\n"; + std::cerr << "Type '" << opt.prog_name() << + " -h' for more information.\n"; + break; + } + }); + + opt.set_pos_cb( + [&](std::string_view) + { + std::cerr << + "The configure subcommand doesn't use positional arguments.\n"; + return 1; + }); + + auto res = opt.parse(); + if(res != 0) + { + return res; + } if(host_arch_prefix.empty()) { @@ -651,6 +782,7 @@ int regenerateCache(ctor::settings& settings, { ctor::conf_values[ctor::cfg::builddir] = builddir; } + ctor::conf_values[ctor::cfg::host_cxx] = host_cxx; ctor::conf_values[ctor::cfg::build_cxx] = build_cxx; @@ -839,12 +971,24 @@ int configure(const ctor::settings& global_settings, int argc, char* argv[]) env["CC"] = cc_env; } + auto cflags_env = getenv("CFLAGS"); + if(cflags_env) + { + env["CFLAGS"] = cflags_env; + } + auto cxx_env = getenv("CXX"); if(cxx_env) { env["CXX"] = cxx_env; } + auto cxxflags_env = getenv("CXXFLAGS"); + if(cxxflags_env) + { + env["CXXFLAGS"] = cxxflags_env; + } + auto ar_env = getenv("AR"); if(ar_env) { @@ -857,12 +1001,43 @@ int configure(const ctor::settings& global_settings, int argc, char* argv[]) env["LD"] = ld_env; } + auto ldflags_env = getenv("LDFLAGS"); + if(ldflags_env) + { + env["LDFLAGS"] = ldflags_env; + } + auto path_env = getenv("PATH"); if(path_env) { env["PATH"] = path_env; } + // Env vars for msvc + auto cl_env = getenv("CL"); + if(cl_env) + { + env["CL"] = cl_env; + } + + auto lib_env = getenv("LIB"); + if(lib_env) + { + env["LIB"] = lib_env; + } + + auto link_env = getenv("LINK"); + if(link_env) + { + env["LINK"] = link_env; + } + + auto include_env = getenv("INCLUDE"); + if(include_env) + { + env["INCLUDE"] = include_env; + } + auto ret = regenerateCache(settings, args_span[0], args, env); if(ret != 0) { |