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/* gcc on mingw is hardcoded to use /mingw (which is c:/mingw) to
find various files. If this is a different version of mingw to the
one that we have in the GHC tree then things can go wrong. We
therefore need to add various -B flags to the gcc commandline,
so that it uses our in-tree mingw. Hence this wrapper. */
#include "cwrapper.h"
#include "getLocation.h"
#include <stdio.h>
#include <stdlib.h>
int main(int argc, char** argv) {
char *binDir;
char *exePath;
char *preArgv[4];
char *oldPath;
char *newPath;
int n;
binDir = getExecutablePath();
exePath = mkString("%s/realgcc.exe", binDir);
/* We need programs like
inplace/mingw/libexec/gcc/mingw32/4.5.0/cc1.exe
to be able to find the DLLs in inplace/mingw/bin, so we need to
add it to $PATH */
oldPath = getenv("PATH");
if (!oldPath) {
die("Couldn't read PATH\n");
}
n = snprintf(NULL, 0, "PATH=%s;%s", binDir, oldPath);
n++;
newPath = malloc(n);
if (!newPath) {
die("Couldn't allocate space for PATH\n");
}
snprintf(newPath, n, "PATH=%s;%s", binDir, oldPath);
n = putenv(newPath);
if (n) {
die("putenv failed\n");
}
/* Without these -B args, gcc will still work. However, if you
have a mingw installation in c:/mingw then it will use files
from that in preference to the in-tree files. */
preArgv[0] = mkString("-B%s", binDir);
preArgv[1] = mkString("-B%s/../lib", binDir);
#ifdef __MINGW64__
preArgv[2] = mkString("-B%s/../lib/gcc/x86_64-w64-mingw32/6.2.0", binDir);
preArgv[3] = mkString("-B%s/../libexec/gcc/x86_64-w64-mingw32/6.2.0", binDir);
#else
preArgv[2] = mkString("-B%s/../lib/gcc/i686-w64-mingw32/6.2.0", binDir);
preArgv[3] = mkString("-B%s/../libexec/gcc/i686-w64-mingw32/6.2.0", binDir);
#endif
run(exePath, 4, preArgv, argc - 1, argv + 1);
}
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