Same error, apparently when I configure it does not create a Makefile in the lib folder.

You need the *lib*in the lib folder that your compiler uses (c:/mingw/libs probably).
You get the lib when you compile the mt32emulib.

I only got source files when I used cmake. And I said earlier that when trying to run ./configure in MinGW on the source files and it crashes to cmd.

You don't run configure on mt32lib. You need to run cmake and then make. Cmake is an alternative to the autotools (autogen, configure... Etc).
If you dont have anything compiled don't expect anything that depends on it to compile...

Dominus wrote:

You don't run configure on mt32lib. You need to run cmake and then make. Cmake is an alternative to the autotools (autogen, configure... Etc).
If you dont have anything compiled don't expect anything that depends on it to compile...

I ran cmake, got the source files with it, then tried to make in MinGW. As opposed to what you said, I didn't configure in MinGW. In cmake I tried both CLI and GUI, in GUI I did both Configure and Generate. After that I got the MUNT source files and afterwards I went to compile with MinGW since CMake does not do that (at least here) and this results in MinGW crashing. I don't know what I'm doing wrong here. 😐

You probably need to run cmake in mingw/msys

Other than that you are on your own since I haven't used mingw/msys in ages and never had to do anything with cmake back then. Try to google it

Out of sick, masochistic curiosity I just tried building mt32emu under MinGW, it built with no problems, using their provided MinGW shell and command line cmake.
Sure enough, it produced libmt32emu.a.
The only problem I can think of is a poorly configured cmake, so...my recommendations:
-Run CMake within the MinGW shell (it whines if sh is in your path).
-Make the source path is the one for mt32emu, you probably don't want other stuff it builds (i.e change to said path and run 'cmake -G "MSYS Makefiles" ./' sans the single quotes)
-Make
Done.
I'm posting here the compiled binary built with gcc version 4.7.0 (GCC) just now, it may or may not be of use to you.

Thanks to both of you, I finally got it to work and compiled my own library. Sorry for the masochistic tendencies and for the pulled hair through out this thread, haha =D

I have to come back to this thread (for more hair pulling, I'm such a sadistic bastard I know... 😁 ) since I'm having problems again, and this time it's
MinGW not compiling DosBox with Munt. The entries for mt32 emulation are present in the .conf, but when I choose it, this message shows up in the DosBox status window:

1"mt32" is not a valid value for variable: mididevice.
2It might now be reset it to default value: default

I don't know what went wrong this time, I made 2 successful builds by now and they both had mt-32 built in them. I recently had to reinstall Windows so I had to gather the compiling environment back. I don't think I missed anything much, I got SDL, got most of the optional libs suggested by the readme (which some don't get detected even when they're in the right place like png.h or in.h for instance). Also, the config.log (that I'll attach at the bottom) doesn't have any entries to either mt32emu, munt or simply mt32, so I start to wonder what went wrong 😐

Seems you didn't apply the patch

That's weird, how can that be when there's the mt32 entries/descriptions in the dosbox.conf file?

Anyway, I'll try to compile DosBox again from scratch and see if that makes any difference and I'll edit this post with the results.

Because you are using your old conf? If configure doesn't look for libmt32 then it's probably not patched to do so...

This is what patching outputs:

1$ patch -p1 < mt32.diff
2patching file src/Makefile.am
3patching file src/dosbox.cpp
4Hunk #1 succeeded at 483 (offset 16 lines).
5Hunk #2 succeeded at 499 with fuzz 1 (offset 19 lines).
6patching file src/gui/Makefile.am
7patching file src/gui/midi.cpp
8Hunk #1 succeeded at 103 (offset 5 lines).
9patching file src/gui/midi_mt32.h

Configure

1$ ./configure
2checking build system type... i686-pc-mingw32
3checking host system type... i686-pc-mingw32
4checking for a BSD-compatible install... /bin/install -c
5checking whether build environment is sane... yes
6checking for a thread-safe mkdir -p... /bin/mkdir -p
7checking for gawk... gawk
8checking whether make sets $(MAKE)... yes
9checking whether make sets $(MAKE)... (cached) yes
10checking for gcc... gcc
11checking whether the C compiler works... yes
12checking for C compiler default output file name... a.exe
13checking for suffix of executables... .exe
14checking whether we are cross compiling... no
15checking for suffix of object files... o
16checking whether we are using the GNU C compiler... yes
17checking whether gcc accepts -g... yes
18checking for gcc option to accept ISO C89... none needed
19checking for style of include used by make... GNU
20checking dependency style of gcc... gcc3
21checking how to run the C preprocessor... gcc -E
22checking for g++... g++
23checking whether we are using the GNU C++ compiler... yes
24checking whether g++ accepts -g... yes
25checking dependency style of g++... gcc3
26checking for ranlib... ranlib
27checking for sdl-config... /mingw/bin/sdl-config
28checking for SDL - version >= 1.2.0... yes
29checking SDL version only being 1.2.X... yes
30checking for an ANSI C-conforming const... yes
31checking for inline... inline
32checking for grep that handles long lines and -e... /bin/grep
33checking for egrep... /bin/grep -E
34checking for ANSI C header files... yes
35checking for sys/types.h... yes
36checking for sys/stat.h... yes
37checking for stdlib.h... yes
38checking for string.h... yes
39checking for memory.h... yes
40checking for strings.h... yes
41checking for inttypes.h... yes
42checking for stdint.h... yes
43checking for unistd.h... yes
44checking for size_t... yes
45checking whether struct tm is in sys/time.h or time.h... time.h
46checking size of unsigned char... 1
47checking size of unsigned short... 2
48checking size of unsigned int... 4
49checking size of unsigned long... 4
50checking size of unsigned long long... 8
51checking size of int *... 4
52checking for stdlib.h... (cached) yes
53checking for sys/types.h... (cached) yes
54checking for sys/socket.h... no
55checking for netinet/in.h... no
56checking for pwd.h... no
57checking if environ can be included... yes
58checking if environ can be linked... yes
59checking if dirent includes d_type... no
60checking for powf in libm... yes

61checking if compiler allows __attribute__... yes
62checking if compiler allows __attribute__((always_inline)) ... yes
63checking if compiler allows __attribute__((fastcall)) ... yes
64checking if compiler allows __builtin_expect... yes
65checking for ALSA CFLAGS...
66checking for ALSA LDFLAGS...  -lasound -lm -ldl -lpthread
67checking for libasound headers version >= 0.9.0... not present.
68checking for snd_ctl_open in -lasound... no
69checking whether byte ordering is bigendian... no
70checking for target cpu type... x86 compatible
71checking whether x86 dynamic cpu core will be enabled... yes
72checking whether recompiling cpu core will be enabled... no, using dynamic-x86
73checking whether fpu emulation will be enabled... yes
74checking whether x86 assembly fpu core will be enabled... yes
75checking whether to enable unaligned memory access... yes
76checking png.h usability... no
77checking png.h presence... no
78checking for png.h... no
79checking for png_get_io_ptr in -lpng... no
80configure: WARNING: Can't find libpng, screenshot support disabled
81checking SDL_net.h usability... yes
82checking SDL_net.h presence... yes
83checking for SDL_net.h... yes
84checking for SDLNet_Init in -lSDL_net... no
85configure: WARNING: Can't find SDL_net, internal modem and ipx disabled
86checking for main in -lX11... no
87checking X11/XKBlib.h usability... no
88checking X11/XKBlib.h presence... no
89checking for X11/XKBlib.h... no
90checking for XKBlib support... no
91checking for main in -lGL... no
92checking for main in -lopengl32... yes
93checking GL/gl.h usability... yes
94checking GL/gl.h presence... yes
95checking for GL/gl.h... yes
96checking whether opengl display output will be enabled... yes
97checking SDL_sound.h usability... yes
98checking SDL_sound.h presence... yes
99checking for SDL_sound.h... yes
100checking for Sound_Init in -lSDL_sound... no
101checking for Sound_Seek in -lSDL_sound... no
102configure: WARNING: Can't find libSDL_sound, libSDL_sound support disabled
103checking sys/mman.h usability... no
104checking sys/mman.h presence... no
105checking for sys/mman.h... no
106checking for setpriority support... no
107checking ddraw.h usability... yes
108checking ddraw.h presence... yes
109checking for ddraw.h... yes
110checking for windres... windres
111configure: creating ./config.status
112config.status: creating Makefile
113config.status: creating src/Makefile
114config.status: creating src/cpu/Makefile
115config.status: creating src/cpu/core_full/Makefile
116config.status: creating src/cpu/core_normal/Makefile
117config.status: creating src/cpu/core_dyn_x86/Makefile
118config.status: creating src/cpu/core_dynrec/Makefile
119config.status: creating src/debug/Makefile
120config.status: creating src/dos/Makefile
121config.status: creating src/fpu/Makefile
122config.status: creating src/gui/Makefile
123config.status: creating src/hardware/Makefile
124config.status: creating src/hardware/serialport/Makefile
125config.status: creating src/ints/Makefile
126config.status: creating src/libs/Makefile
127config.status: creating src/libs/zmbv/Makefile
128config.status: creating src/libs/gui_tk/Makefile
129config.status: creating src/misc/Makefile
130config.status: creating src/shell/Makefile
131config.status: creating src/platform/Makefile
132config.status: creating src/platform/visualc/Makefile
133config.status: creating visualc_net/Makefile
134config.status: creating include/Makefile
135config.status: creating docs/Makefile
136config.status: creating config.h
137config.status: executing depfiles commands

No signs of libmt32emu.a (it is compiled and present in MinGW/libs/ folder) also configure.log shows no sign of munt/mt32/libmt32

Make stops with an error:

1make[3]: Entering directory `/c/dosbox/src/gui'
2g++ -DHAVE_CONFIG_H -I. -I../..  -I../../include -I/c/MinGW/include/SDL -D_GNU_S
3OURCE=1 -Dmain=SDL_main  -g -O2  -MT midi.o -MD -MP -MF .deps/midi.Tpo -c -o mid
4i.o midi.cpp
5In file included from midi.cpp:106:0:
6midi_mt32.h:1:29: fatal error: mt32emu/mt32emu.h: No such file or directory
7compilation terminated.
8make[3]: *** [midi.o] Error 1
9make[3]: Leaving directory `/c/dosbox/src/gui'
10make[2]: *** [all-recursive] Error 1
11make[2]: Leaving directory `/c/dosbox/src'
12make[1]: *** [all-recursive] Error 1
13make[1]: Leaving directory `/c/dosbox'
14make: *** [all] Error 2

I have no idea why it doesn't pick up mt32emu.h that's in the /src/gui folder (where the compiler was when it encountered the error). I also tried making a sub-folder so it would be /src/gui/mt32emu/mt32emu.h and still doesn't work. Tried that also in /src/libs and /includes but no go.
It's the same error I had before somebody suggested me what to do to compile libmt32emu. (didn't mention it as it compiled fine after making the library)

Also previously I never patched after configuring, so I have no idea how that happened.

Your mt32 stuff needs to be in the mingw fokder structure. You shot your working mingw thing and now you need to build it up again as it was previously...

Dominus wrote:

Your mt32 stuff needs to be in the mingw fokder structure. You shot your working mingw thing and now you need to build it up again as it was previously...

Which "mt32 stuff" and where, MinGW/lib/? I thought they were automatically placed when I issued "make install" after finishing compiling munt.

Sorry for the double post, I haven't changed anything from previously except that I installed automake through MinGW (mingw-get) and it worked. I noticed it was complaining that it's missing when configuring. Another issue arose, seems I can't use the ddraw output, it tells me this in DosBox status window: "Failed to create ddraw surface, back to normal surface."
Also mt-32 output is seriously slow and choppy even on 4000 cycles (that gives me speeds close to a low-end 386 CPU). But I'll have to ask about this in it's development thread. It's a big difference compared to previous munt versions as earlier I was able to achieve double the cycles with no choppiness.

I think you need to *hack* SDL for ddraw...

And *seriously*, automake missing and you go on? Pay attention to that stuff...

And what exactly would that "hacking" require?

As I said earlier in the thread I'm a newbie to compiling, and I've only done it in an UNIX environment once or twice where it was a given that automake was integrated. I need things to be spelled out even if it seems redundant to you. Also I had no idea what automake is for, and proceeded since the compiling didn't stop at that point.

Since I'm no longer on Windows, I don't know anymore what you need to do to SDL...