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43ff4373d6
Whereas most OSs seem to remove the environment variable if it's cleared, OSX seems to keep it, explicitly cleared so to speak. I strongly suspect a cleared CC env variable to be the reason for the triggering assertion when trying to build dmd-testsuite's d_do_test tool in our OSX CI builds.
79 lines
2 KiB
C++
79 lines
2 KiB
C++
//===-- programs.cpp ------------------------------------------------------===//
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//
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// LDC – the LLVM D compiler
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//
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// This file is distributed under the BSD-style LDC license. See the LICENSE
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// file for details.
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//
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//===----------------------------------------------------------------------===//
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#include "gen/programs.h"
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#include "mars.h"
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#include "llvm/Support/CommandLine.h"
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#include "llvm/Support/Program.h"
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using namespace llvm;
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static cl::opt<std::string> gcc("gcc",
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cl::desc("GCC to use for assembling and linking"),
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cl::Hidden,
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cl::ZeroOrMore);
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static cl::opt<std::string> ar("ar",
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cl::desc("Archiver"),
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cl::Hidden,
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cl::ZeroOrMore);
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static std::string findProgramByName(const std::string& name)
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{
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#if LDC_LLVM_VER >= 306
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llvm::ErrorOr<std::string> res = llvm::sys::findProgramByName(name);
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return res ? res.get() : std::string();
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#elif LDC_LLVM_VER >= 304
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return llvm::sys::FindProgramByName(name);
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#else
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return llvm::sys::Program::FindProgramByName(name).str();
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#endif
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}
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static std::string getProgram(const char* name, const cl::opt<std::string>* opt, const char* envVar = NULL)
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{
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std::string path;
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const char *prog = NULL;
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if (opt && opt->getNumOccurrences() > 0 && opt->length() > 0 && (prog = opt->c_str()))
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path = findProgramByName(prog);
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if (path.empty() && envVar && (prog = getenv(envVar)) && prog[0] != '\0')
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path = findProgramByName(prog);
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if (path.empty())
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path = findProgramByName(name);
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if (path.empty()) {
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error(Loc(), "failed to locate %s", name);
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fatal();
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}
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return path;
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}
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std::string getProgram(const char* name, const char* envVar)
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{
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return getProgram(name, NULL, envVar);
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}
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std::string getGcc()
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{
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#if defined(__FreeBSD__) && __FreeBSD__ >= 10
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// Default compiler on FreeBSD 10 is clang
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return getProgram("clang", &gcc, "CC");
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#else
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return getProgram("gcc", &gcc, "CC");
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#endif
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}
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std::string getArchiver()
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{
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return getProgram("ar", &ar);
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}
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