mirror of
https://github.com/Relintai/osxcross.git
synced 2025-02-03 22:45:56 +01:00
118 lines
4.1 KiB
C++
118 lines
4.1 KiB
C++
/***********************************************************************
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* OSXCross Compiler Wrapper *
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* Copyright (C) 2014-2016 by Thomas Poechtrager *
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* t.poechtrager@gmail.com *
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU General Public License *
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* as published by the Free Software Foundation; either version 2 *
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* of the License, or (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the Free Software *
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* Foundation, Inc., *
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
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***********************************************************************/
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#include "proginc.h"
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extern char **environ;
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using namespace tools;
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namespace program {
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namespace osxcross {
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struct envvar {
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std::string name;
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std::string value;
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envvar() {}
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envvar(std::string name, std::string value) : name(name), value(value) {}
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};
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static envvar &var(const char *p, envvar &evar, const bool skipval = false) {
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const char *value = strchr(p, '=') + 1; // find value offset
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evar.name.assign(p, value - p - 1);
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if (!skipval)
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evar.value = value;
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return evar;
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}
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int pkg_config(int argc, char **argv, Target &target) {
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(void)argc;
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std::vector<envvar> envvars;
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std::vector<envvar> unset;
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envvar evar;
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bool usenativevariables = getenv("OSXCROSS_PKG_CONFIG_USE_NATIVE_VARIABLES");
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if (!getenv("OSXCROSS_PKG_CONFIG_NO_MP_INC")) {
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std::string MacPortsSysRoot;
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if (target.getMacPortsSysRootDir(MacPortsSysRoot)) {
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concatEnvVariable(usenativevariables ? "PKG_CONFIG_SYSROOT_DIR"
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: "OSXCROSS_PKG_CONFIG_SYSROOT_DIR",
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MacPortsSysRoot);
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std::string MacPortsPkgConfigPath;
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if (target.getMacPortsPkgConfigDir(MacPortsPkgConfigPath))
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concatEnvVariable(usenativevariables ? "PKG_CONFIG_PATH"
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: "OSXCROSS_PKG_CONFIG_PATH",
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MacPortsPkgConfigPath);
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}
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} else {
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unsetenv("OSXCROSS_PKG_CONFIG_NO_MP_INC");
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}
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if (!usenativevariables) {
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// Map OSXCROSS_PKG_* to PKG_*.
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for (char **env = environ; *env; ++env) {
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char *p = *env;
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if (!strncmp(p, "OSXCROSS_PKG_CONFIG", 19)) {
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p += 9; // skip OSXCROSS_
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envvars.push_back(var(p, evar));
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} else if (!strncmp(p, "PKG_CONFIG", 10)) {
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// Unset native pkg-config vars.
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unset.push_back(var(p, evar, true));
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}
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}
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}
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if (usenativevariables || !envvars.empty()) {
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if (!usenativevariables) {
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for (const envvar &evar : unset) {
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warn << argv[0] << ": ignoring environment variable '" << evar.name
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<< "' - please see README.PKG-CONFIG.md for more" << warn.endl();
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unsetenv(evar.name.c_str());
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}
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for (const envvar &evar : envvars)
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setenv(evar.name.c_str(), evar.value.c_str(), 1);
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}
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// Prevent pkg-config from looking for *.pc files
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// in pre-defined search paths, such as /usr.
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if (!getenv("PKG_CONFIG_LIBDIR"))
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setenv("PKG_CONFIG_LIBDIR", "", 1);
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execvp("pkg-config", argv);
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err << "cannot find or execute pkg-config" << err.endl();
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return 1;
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}
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warn << argv[0] << " is a no-op - please see README.PKG-CONFIG.md for more"
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<< warn.endl();
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return 1;
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}
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} // namespace osxcross
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} // namespace program
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