I\'m ok with using Cygwin or MinGW, but I need to end up with 64-bit code, not 32-bit. This is because I will be calling the DLL from 64-bit managed C#. I can\'t seem to find
The 64-bit MinGW, based on (just released) gcc-4.4.0, is probably your best bet. (Since the mingw-w64 project on sourceforge.net is moving to mingw-w64.org it's better to use mingw-w64.org)
Detailed instructions:
1. Download the archive
2. Extract it somewhere under cygwin. In my case, top-level cygwin directory is C:\cygwin
, I extracted the package into mingw
directory, and ended up with the following contents in C:\cygwin\mingw
(which is visible as /mingw
under cygwin:
$ ls -l /mingw
total 1
drwxr-xr-x+ 2 user None 0 May 10 08:32 bin
drwxr-xr-x+ 2 user None 0 May 10 05:45 include
drwxr-xr-x+ 2 user None 0 May 10 08:30 info
drwxr-xr-x+ 3 user None 0 May 10 08:30 lib
drwxr-xr-x+ 3 user None 0 May 10 05:45 libexec
drwxr-xr-x+ 4 user None 0 May 10 05:45 man
lrwxrwxrwx 1 user None 17 May 17 17:20 mingw -> x86_64-pc-mingw32
drwxr-xr-x+ 3 user None 0 May 10 04:16 share
drwxr-xr-x+ 5 user None 0 May 10 04:18 x86_64-pc-mingw32
3. Now compile some C++ code. I used:
// t.cc
#include
#include
using namespace std;
int main()
{
vector vs;
vs.push_back("abc");
}
And compile it like this:
$ /mingw/bin/x86_64-pc-mingw32-g++ t.cc
4. Finally, verify the result is a Windows/x 64 executable, by running dumpbin /headers a.exe
:
Microsoft (R) COFF/PE Dumper Version 7.00.9466
Copyright (C) Microsoft Corporation. All rights reserved.
Dump of file a.exe
PE signature found
File Type: EXECUTABLE IMAGE
FILE HEADER VALUES
8664 machine (AMD64)
10 number of sections
4A10AF9F time date stamp Sun May 17 17:45:19 2009
ABA00 file pointer to symbol table
EC4 number of symbols
F0 size of optional header
27 characteristics
Relocations stripped
Executable
Line numbers stripped
Application can handle large (>2GB) addresses