I don't have a 64-bit PC to test out these issues. On the tutorial I included this:
...What if you have a 64-bit system?
Note that most module exe helpers are targeted for x86 code, i.e. even if you run cygwin x64 (which you should on a x64 Windows) you need to use the i686 mingw toolchain.
Please leave feedback if you get mingw64-x86-64-gcc-core working and on which command line tools--it is going to need some tweaks to the ML source code.
That might be a little confusing but basically it means that if you are going to compile the command line tools, like raw2dng.exe, it has been tested to work with the 32-bit compiler (i686) but not with the 64-bit compiler (x64).
I wasn't aware that building a platform automatically builds raw2dng but now that I see that does. It was the same with cr2hdr until just recently with
this commit. The other popular command line tool, mlv_dump, isn't built when a platform is compiled so I thought that was preferred method. Build rules for raw2dng are in both raw_rec and lv_rec so perhaps we should look into that.
Of course this doesn't resolve another issue which is that raw2dng.exe can't be built with a 64-bit compiler. I'm not sure if this is true for all 64-bit compilers but it is a problem when I cross compile a Windows binary on a Mac:
[ MINGW ] raw2dng.exe
raw2dng.c: In function 'find_and_fix_cold_pixels':
raw2dng.c:1213:9: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for (int y = 0; y < h; y++)
^
raw2dng.c:1213:9: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
raw2dng.c:1215:13: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for (int x = 0; x < w; x++)
^
raw2dng.c:1233:5: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for (int p = 0; p < cold_pixels; p++)
^
raw2dng.c:1243:9: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for (int i = -4; i <= 4; i++)
^
raw2dng.c:1245:13: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for (int j = -4; j <= 4; j++)
^
make: *** [raw2dng.exe] Error 1
Simply adding the "-std=c99" switch worked for me but it should be tested on other 64-bit systems.
Thank you for reply dfort and alex. dfort, i have tried your fixes, but it does not work. No raw2dng.exe, no raw_rec.mo. May be i have to install cygwin32.
Now commented # all:: raw2dng in modules/raw_rec and raw_rec.mo appeared!
I'm a bit confused with that comment. So commenting out the "all" rule worked for you? This should build the raw_rec module but not raw2dng.exe.
What was it that didn't work, adding the "-std=c99" switch?
@alex - Which compiler are you using on Linux and are you cross compiling Windows binaries? Would adding the "-std=c99" switch to the raw2dng make rules have any negative consequences? It seems to work fine with the Windows binaries that I have compiled on my Mac.
