Use LLVM-style command line (instead of DMD-style) Note: For a backward compatible interface, use the new bin/ldmd script. It supports all old options while passing on anything it doesn't recognize. Some changes caused by this: * -debug and -version are now -d-debug and -d-version due to a conflict with standard LLVM options. * All "flag" options now allow an optional =true/=1/=false/=0 suffix. * Some "hidden debug switches" starting with "--" were renamed because LLVM doesn't care about the number of dashes, so they were conflicting with other options (such as -c). The new versions start with "-hidden-debug-" instead of "--" * --help works, but has a non-zero exit code. This breaks some Tango scripts which use it to test for compiler existence. See tango.patch. Some changes not (directly) caused by this; * (-enable/-disable)-FOO options are now available for pre- and postconditions. * -march is used instead of -m (like other LLVM programs), but -m is an alias for it. * -defaultlib, -debuglib, -d-debug and -d-version allow comma-separated values. The effect should be identical to specifying the same option multiple times. I decided against allowing these for some other options because paths might contain commas on some systems. * -fPIC is removed in favor of the standard LLVM option -relocation-model=pic Bug: * If -run is specified as the last argument in DFLAGS, no error is generated. (Not very serious IMHO)

#ifndef LDC_GEN_LINKER_H
#define LDC_GEN_LINKER_H

#include "llvm/Support/CommandLine.h"
#include <vector>

extern llvm::cl::opt<bool> quiet;

namespace llvm
{
    class Module;
}

/**
 * Links the modules given in MV in to dst.
 * @param dst Destination module.
 * @param MV Vector of modules to link in to destination.
 */
void linkModules(llvm::Module* dst, const std::vector<llvm::Module*>& MV);

/**
 * Link an executable.
 * @param argv0 the argv[0] value as passed to main
 * @return 0 on success.
 */
int linkExecutable(const char* argv0);

/**
 * Link an executable only from object files.
 * @param argv0 the argv[0] value as passed to main
 * @return 0 on success.
 */
int linkObjToExecutable(const char* argv0);

/**
 * Delete the executable that was previously linked with linkExecutable.
 */
void deleteExecutable();

/**
 * Runs the executable that was previously linked with linkExecutable.
 * @return the return status of the executable.
 */
int runExectuable();

#endif // LDC_GEN_LINKER_H