I just compiled the .c file here (had to comment out the first line
which had csound style ; comment instead of //) using mingw64 and
command:

gcc -O2 -shared -o newopc.dll newopc.c -DUSE_DOUBLE -I
../work/csound/csound/include

then was able to run the newopc-test.csd here.

I'm using MSYS2, gcc 7.2.0, Windows 10.

$ gcc -v
Using built-in specs.
COLLECT_GCC=C:\msys64\mingw64\bin\gcc.exe
COLLECT_LTO_WRAPPER=C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/7.2.0/lto-wrapper.exe
Target: x86_64-w64-mingw32
Configured with: ../gcc-7.2.0/configure --prefix=/mingw64
--with-local-prefix=/mingw64/local --build=x86_64-w64-mingw32
--host=x86_64-w64-mingw32 --target=x86_64-w64-mingw32
--with-native-system-header-dir=/mingw64/x86_64-w64-mingw32/include
--libexecdir=/mingw64/lib --enable-bootstrap --with-arch=x86-64
--with-tune=generic
--enable-languages=c,lto,c++,objc,obj-c++,fortran,ada --enable-shared
--enable-static --enable-libatomic --enable-threads=posix
--enable-graphite --enable-fully-dynamic-string
--enable-libstdcxx-time=yes --disable-libstdcxx-pch
--disable-libstdcxx-debug --disable-isl-version-check --enable-lto
--enable-libgomp --disable-multilib --enable-checking=release
--disable-rpath --disable-win32-registry --disable-nls
--disable-werror --disable-symvers --with-libiconv --with-system-zlib
--with-gmp=/mingw64 --with-mpfr=/mingw64 --with-mpc=/mingw64
--with-isl=/mingw64 --with-pkgversion='Rev1, Built by MSYS2 project'
--with-bugurl=https://sourceforge.net/projects/msys2 --with-gnu-as
--with-gnu-ld
Thread model: posix
gcc version 7.2.0 (Rev1, Built by MSYS2 project)



On Wed, Sep 13, 2017 at 9:30 PM, Joe Mantegna  wrote:
> Actually, I got installed both cygwin64 and mingw-w64 and it compiled like a
> charm, but with the same results.
> That is: the dll generated is not loaded by Csound.
> Any other suggestion?
> JoM
>
> On Wed, Sep 13, 2017 at 12:15 AM, Joe Mantegna 
> wrote:
>>
>> Ahhh...that could be the reason, but i compiled also using gcc in Ubuntu
>> 16.04 64 bits version the same code
>> with the same result.
>> Anyway, i will give a try installing MinGW64 and compiling, thanks.
>>
>> On Tue, Sep 12, 2017 at 8:55 PM, Michael Gogins 
>> wrote:
>>>
>>> Probably Csound for Windows is compiled for 64 bit CPU architecture and
>>> your plugin is complied for 32 bit CPU architecture. They both have to be
>>> the same.
>>>
>>> On Sep 12, 2017 7:49 PM, "Joe Mantegna" 
>>> wrote:
>>>>
>>>> Hello folks, got some problem, can anyone help?
>>>> I´ve compiled the plugin example by Victor Lazzarini that i found in the
>>>> FLOSS Manual of Csound under Windows 10 using MinGW+MSYS and following the
>>>> given compilation command (which is also a part of the example):
>>>>
>>>> gcc -O2 -shared -o myopc.dll opsrc.c -DUSE_DOUBLE
>>>>     -I
>>>>
>>>>
>>>> The compilation was absolutely smooth, but after that i copied the
>>>> newopc.dll in the
>>>> plugin6 folder of Csound, I've tried to run the csd example use and it
>>>> did not work.
>>>> Here is the output after running the csd code:
>>>>
>>>> virtual_keyboard real time MIDI plugin for Csound
>>>> 0dBFS level = 32768.0
>>>> --Csound version 6.09.1 (double samples) Jul 10 2017
>>>> [commit: 8e8f7a02dc8f0677d10224f7ab18b63f63c80728]
>>>> libsndfile-1.0.27
>>>> WARNING: could not open library 'C:\Program
>>>> Files\Csound6_x64\plugins64\\newopc.dll' (-1)
>>>> WARNING: could not open library 'C:\Program
>>>> Files\Csound6_x64\plugins64\\py.dll' (-1)
>>>> UnifiedCSD: E:\csound-develop\newopc.csd
>>>>
>>>> STARTING FILE
>>>> Creating options
>>>> Creating orchestra
>>>> scoreless operation
>>>> Loading command-line libraries:
>>>> rtaudio: PortAudio module enabled ...
>>>> using callback interface
>>>>
>>>> error: syntax error, unexpected T_IDENT  (token "newopc") from file
>>>> E:\csound-develop\newopc.csd (1)
>>>>  line 11:
>>>> >>>asig   newopc  <<<
>>>> Unexpected untyped word asig when expecting a variable
>>>> Parsing failed due to invalid input!
>>>> Stopping on parser failure
>>>> cannot compile orchestra
>>>> end of score.              overall amps:      0.0
>>>> 1 errors in performance
>>>> Elapsed time at end of performance: real: 0.004s, CPU: 0.000s
>>>>
>>>> It seems that Csound doesn't load the compiled library, but i can't
>>>> figure out
>>>> what i am doing wrong. Code is attached.
>>>> Thank you in advance.
>>>>
>>>> JoM
>>>>
>>>>
>>

Try the file at:

http://www.kunstmusik.com/newopc.dll

On Thu, Sep 14, 2017 at 10:37 AM, Joe Mantegna
 wrote:
> Well...
> I am compiling using this version, i don´t see significant changes:
> C:\>gcc -v
> Using built-in specs.
> COLLECT_GCC=gcc
> COLLECT_LTO_WRAPPER=C:/Program\ Files\
> (x86)/mingw-w64/i686-7.1.0-posix-dwarf-rt_v5-rev2/mingw32/bin/../libexec/gcc/i686-w64-mingw32/7.1.0/lto-wrapper.exe
> Target: i686-w64-mingw32
> Configured with: ../../../src/gcc-7.1.0/configure --host=i686-w64-mingw32
> --build=i686-w64-mingw32 --target=i686-w64-mingw32 --prefix=/mingw32
> --with-sysroot=/c/mingw710/i686-710-posix-dwarf-rt_v5-rev2/mingw32
> --enable-shared --enable-static --disable-multilib
> --enable-languages=c,c++,fortran,lto --enable-libstdcxx-time=yes
> --enable-threads=posix --enable-libgomp --enable-libatomic --enable-lto
> --enable-graphite --enable-checking=release --enable-fully-dynamic-string
> --enable-version-specific-runtime-libs --enable-libstdcxx-filesystem-ts=yes
> --disable-sjlj-exceptions --with-dwarf2 --disable-libstdcxx-pch
> --disable-libstdcxx-debug --enable-bootstrap --disable-rpath
> --disable-win32-registry --disable-nls --disable-werror --disable-symvers
> --with-gnu-as --with-gnu-ld --with-arch=i686 --with-tune=generic
> --with-libiconv --with-system-zlib
> --with-gmp=/c/mingw710/prerequisites/i686-w64-mingw32-static
> --with-mpfr=/c/mingw710/prerequisites/i686-w64-mingw32-static
> --with-mpc=/c/mingw710/prerequisites/i686-w64-mingw32-static
> --with-isl=/c/mingw710/prerequisites/i686-w64-mingw32-static
> --with-pkgversion='i686-posix-dwarf-rev2, Built by MinGW-W64 project'
> --with-bugurl=https://sourceforge.net/projects/mingw-w64 CFLAGS='-O2 -pipe
> -fno-ident -I/c/mingw710/i686-710-posix-dwarf-rt_v5-rev2/mingw32/opt/include
> -I/c/mingw710/prerequisites/i686-zlib-static/include
> -I/c/mingw710/prerequisites/i686-w64-mingw32-static/include' CXXFLAGS='-O2
> -pipe -fno-ident
> -I/c/mingw710/i686-710-posix-dwarf-rt_v5-rev2/mingw32/opt/include
> -I/c/mingw710/prerequisites/i686-zlib-static/include
> -I/c/mingw710/prerequisites/i686-w64-mingw32-static/include' CPPFLAGS='
> -I/c/mingw710/i686-710-posix-dwarf-rt_v5-rev2/mingw32/opt/include
> -I/c/mingw710/prerequisites/i686-zlib-static/include
> -I/c/mingw710/prerequisites/i686-w64-mingw32-static/include' LDFLAGS='-pipe
> -fno-ident -L/c/mingw710/i686-710-posix-dwarf-rt_v5-rev2/mingw32/opt/lib
> -L/c/mingw710/prerequisites/i686-zlib-static/lib
> -L/c/mingw710/prerequisites/i686-w64-mingw32-static/lib
> -Wl,--large-address-aware'
> Thread model: posix
> gcc version 7.1.0 (i686-posix-dwarf-rev2, Built by MinGW-W64 project)
>
> However, the dll is not loaded by csound. Would you mind to put the binary
> generated in some place at
> which i can download it to find out whether it is a compilation or a csound
> issue?
> My best.
> JoM
>
>
>
> On Wed, Sep 13, 2017 at 10:44 PM, Steven Yi  wrote:
>>
>> I just compiled the .c file here (had to comment out the first line
>> which had csound style ; comment instead of //) using mingw64 and
>> command:
>>
>> gcc -O2 -shared -o newopc.dll newopc.c -DUSE_DOUBLE -I
>> ../work/csound/csound/include
>>
>> then was able to run the newopc-test.csd here.
>>
>> I'm using MSYS2, gcc 7.2.0, Windows 10.
>>
>> $ gcc -v
>> Using built-in specs.
>> COLLECT_GCC=C:\msys64\mingw64\bin\gcc.exe
>>
>> COLLECT_LTO_WRAPPER=C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/7.2.0/lto-wrapper.exe
>> Target: x86_64-w64-mingw32
>> Configured with: ../gcc-7.2.0/configure --prefix=/mingw64
>> --with-local-prefix=/mingw64/local --build=x86_64-w64-mingw32
>> --host=x86_64-w64-mingw32 --target=x86_64-w64-mingw32
>> --with-native-system-header-dir=/mingw64/x86_64-w64-mingw32/include
>> --libexecdir=/mingw64/lib --enable-bootstrap --with-arch=x86-64
>> --with-tune=generic
>> --enable-languages=c,lto,c++,objc,obj-c++,fortran,ada --enable-shared
>> --enable-static --enable-libatomic --enable-threads=posix
>> --enable-graphite --enable-fully-dynamic-string
>> --enable-libstdcxx-time=yes --disable-libstdcxx-pch
>> --disable-libstdcxx-debug --disable-isl-version-check --enable-lto
>> --enable-libgomp --disable-multilib --enable-checking=release
>> --disable-rpath --disable-win32-registry --disable-nls
>> --disable-werror --disable-symvers --with-libiconv --with-system-zlib
>> --with-gmp=/mingw64 --with-mpfr=/mingw64 --with-mpc=/mingw64
>> --with-isl=/mingw64 --with-pkgversion='Rev1, Built by MSYS2 project'
>> --with-bugurl=https://sourceforge.net/projects/msys2 --with-gnu-as
>> --with-gnu-ld
>> Thread model: posix
>> gcc version 7.2.0 (Rev1, Built by MSYS2 project)
>>
>>
>>
>> On Wed, Sep 13, 2017 at 9:30 PM, Joe Mantegna 
>> wrote:
>> > Actually, I got installed both cygwin64 and mingw-w64 and it compiled
>> > like a
>> > charm, but with the same results.
>> > That is: the dll generated is not loaded by Csound.
>> > Any other suggestion?
>> > JoM
>> >
>> > On Wed, Sep 13, 2017 at 12:15 AM, Joe Mantegna
>> > 
>> > wrote:
>> >>
>> >> Ahhh...that could be the reason, but i compiled also using gcc in
>> >> Ubuntu
>> >> 16.04 64 bits version the same code
>> >> with the same result.
>> >> Anyway, i will give a try installing MinGW64 and compiling, thanks.
>> >>
>> >> On Tue, Sep 12, 2017 at 8:55 PM, Michael Gogins
>> >> 
>> >> wrote:
>> >>>
>> >>> Probably Csound for Windows is compiled for 64 bit CPU architecture
>> >>> and
>> >>> your plugin is complied for 32 bit CPU architecture. They both have to
>> >>> be
>> >>> the same.
>> >>>
>> >>> On Sep 12, 2017 7:49 PM, "Joe Mantegna" 
>> >>> wrote:
>> >>>>
>> >>>> Hello folks, got some problem, can anyone help?
>> >>>> I´ve compiled the plugin example by Victor Lazzarini that i found in
>> >>>> the
>> >>>> FLOSS Manual of Csound under Windows 10 using MinGW+MSYS and
>> >>>> following the
>> >>>> given compilation command (which is also a part of the example):
>> >>>>
>> >>>> gcc -O2 -shared -o myopc.dll opsrc.c -DUSE_DOUBLE
>> >>>>     -I
>> >>>>
>> >>>>
>> >>>> The compilation was absolutely smooth, but after that i copied the
>> >>>> newopc.dll in the
>> >>>> plugin6 folder of Csound, I've tried to run the csd example use and
>> >>>> it
>> >>>> did not work.
>> >>>> Here is the output after running the csd code:
>> >>>>
>> >>>> virtual_keyboard real time MIDI plugin for Csound
>> >>>> 0dBFS level = 32768.0
>> >>>> --Csound version 6.09.1 (double samples) Jul 10 2017
>> >>>> [commit: 8e8f7a02dc8f0677d10224f7ab18b63f63c80728]
>> >>>> libsndfile-1.0.27
>> >>>> WARNING: could not open library 'C:\Program
>> >>>> Files\Csound6_x64\plugins64\\newopc.dll' (-1)
>> >>>> WARNING: could not open library 'C:\Program
>> >>>> Files\Csound6_x64\plugins64\\py.dll' (-1)
>> >>>> UnifiedCSD: E:\csound-develop\newopc.csd
>> >>>>
>> >>>> STARTING FILE
>> >>>> Creating options
>> >>>> Creating orchestra
>> >>>> scoreless operation
>> >>>> Loading command-line libraries:
>> >>>> rtaudio: PortAudio module enabled ...
>> >>>> using callback interface
>> >>>>
>> >>>> error: syntax error, unexpected T_IDENT  (token "newopc") from file
>> >>>> E:\csound-develop\newopc.csd (1)
>> >>>>  line 11:
>> >>>> >>>asig   newopc  <<<
>> >>>> Unexpected untyped word asig when expecting a variable
>> >>>> Parsing failed due to invalid input!
>> >>>> Stopping on parser failure
>> >>>> cannot compile orchestra
>> >>>> end of score.              overall amps:      0.0
>> >>>> 1 errors in performance
>> >>>> Elapsed time at end of performance: real: 0.004s, CPU: 0.000s
>> >>>>
>> >>>> It seems that Csound doesn't load the compiled library, but i can't
>> >>>> figure out
>> >>>> what i am doing wrong. Code is attached.
>> >>>> Thank you in advance.
>> >>>>
>> >>>> JoM
>> >>>>
>> >>>>
>> >>
>> >
>

I have compiled and run your sample on Linux. It would neither
compile, nor load, nor run properly, until I made some changes.

I had to change the source code to remove the ";" comment and to use
more correct syntax for #including csdl.h. My file is attached.

I had to change the build command to use correct input and output
names and to add the required "-fPIC" compiler option:

    gcc -O2 -g -shared -fPIC -DUSE_DOUBLE newopc.c -o newopc.so

NOTE: On Linux, all Csound headers are installed to
/usr/local/include/csound so "#include " should always
work.
NOTE: You might as well ALWAYS build for release "-O2" but with
debugging information "-g". Then your code will always run fast, but
you will also always be able to debug it.

I changed the example .csd file in several ways. It was working after
the above steps, but you might never know it.
I added a print statement in the instr definition so you can see that
the instrument is being called.
If your .csd file has no  element then Csound will run
indefinitely. I changed this to use a regular score event so that
Csound will exit normally after performing the score.

-----------------------------------------------------
Michael Gogins
Irreducible Productions
http://michaelgogins.tumblr.com
Michael dot Gogins at gmail dot com


On Tue, Sep 12, 2017 at 7:38 PM, Joe Mantegna  wrote:
> Hello folks, got some problem, can anyone help?
> I´ve compiled the plugin example by Victor Lazzarini that i found in the
> FLOSS Manual of Csound under Windows 10 using MinGW+MSYS and following the
> given compilation command (which is also a part of the example):
>
> gcc -O2 -shared -o myopc.dll opsrc.c -DUSE_DOUBLE
>     -I
>
>
> The compilation was absolutely smooth, but after that i copied the
> newopc.dll in the
> plugin6 folder of Csound, I've tried to run the csd example use and it did
> not work.
> Here is the output after running the csd code:
>
> virtual_keyboard real time MIDI plugin for Csound
> 0dBFS level = 32768.0
> --Csound version 6.09.1 (double samples) Jul 10 2017
> [commit: 8e8f7a02dc8f0677d10224f7ab18b63f63c80728]
> libsndfile-1.0.27
> WARNING: could not open library 'C:\Program
> Files\Csound6_x64\plugins64\\newopc.dll' (-1)
> WARNING: could not open library 'C:\Program
> Files\Csound6_x64\plugins64\\py.dll' (-1)
> UnifiedCSD: E:\csound-develop\newopc.csd
>
> STARTING FILE
> Creating options
> Creating orchestra
> scoreless operation
> Loading command-line libraries:
> rtaudio: PortAudio module enabled ...
> using callback interface
>
> error: syntax error, unexpected T_IDENT  (token "newopc") from file
> E:\csound-develop\newopc.csd (1)
>  line 11:
>>>>asig   newopc  <<<
> Unexpected untyped word asig when expecting a variable
> Parsing failed due to invalid input!
> Stopping on parser failure
> cannot compile orchestra
> end of score.              overall amps:      0.0
> 1 errors in performance
> Elapsed time at end of performance: real: 0.004s, CPU: 0.000s
>
> It seems that Csound doesn't load the compiled library, but i can't figure
> out
> what i am doing wrong. Code is attached.
> Thank you in advance.
>
> JoM
>
>

I have the same version of Linux as you and it compiles, loads, and
runs for me AS I CORRECTED YOUR FILES.


-----------------------------------------------------
Michael Gogins
Irreducible Productions
http://michaelgogins.tumblr.com
Michael dot Gogins at gmail dot com


On Thu, Sep 14, 2017 at 5:31 PM, Joe Mantegna  wrote:
> Sorry, my last message was confusing.
> Under Windows 10 the binary compiled by Steven Yi loaded and run,
> so, it is a compilation issue that i could not solve yet. Mine compiles, but
> it is not
> loaded by Csound.
> Under Linux Ubuntu 16.04 LTS the library compiles but it is not loaded by
> Csound, apparently
> due to a compatibility problem.
> JoM
>
>
> On Thu, Sep 14, 2017 at 4:56 PM, Joe Mantegna 
> wrote:
>>
>> Many thanks, the library is loaded and the example runs. So, it is a
>> building issue.
>> I will try to build with the same compiler you used.
>> JoM
>>
>> On Thu, Sep 14, 2017 at 11:51 AM, Steven Yi  wrote:
>>>
>>> Try the file at:
>>>
>>> http://www.kunstmusik.com/newopc.dll
>>>
>>> On Thu, Sep 14, 2017 at 10:37 AM, Joe Mantegna
>>>  wrote:
>>> > Well...
>>> > I am compiling using this version, i don´t see significant changes:
>>> > C:\>gcc -v
>>> > Using built-in specs.
>>> > COLLECT_GCC=gcc
>>> > COLLECT_LTO_WRAPPER=C:/Program\ Files\
>>> >
>>> > (x86)/mingw-w64/i686-7.1.0-posix-dwarf-rt_v5-rev2/mingw32/bin/../libexec/gcc/i686-w64-mingw32/7.1.0/lto-wrapper.exe
>>> > Target: i686-w64-mingw32
>>> > Configured with: ../../../src/gcc-7.1.0/configure
>>> > --host=i686-w64-mingw32
>>> > --build=i686-w64-mingw32 --target=i686-w64-mingw32 --prefix=/mingw32
>>> > --with-sysroot=/c/mingw710/i686-710-posix-dwarf-rt_v5-rev2/mingw32
>>> > --enable-shared --enable-static --disable-multilib
>>> > --enable-languages=c,c++,fortran,lto --enable-libstdcxx-time=yes
>>> > --enable-threads=posix --enable-libgomp --enable-libatomic --enable-lto
>>> > --enable-graphite --enable-checking=release
>>> > --enable-fully-dynamic-string
>>> > --enable-version-specific-runtime-libs
>>> > --enable-libstdcxx-filesystem-ts=yes
>>> > --disable-sjlj-exceptions --with-dwarf2 --disable-libstdcxx-pch
>>> > --disable-libstdcxx-debug --enable-bootstrap --disable-rpath
>>> > --disable-win32-registry --disable-nls --disable-werror
>>> > --disable-symvers
>>> > --with-gnu-as --with-gnu-ld --with-arch=i686 --with-tune=generic
>>> > --with-libiconv --with-system-zlib
>>> > --with-gmp=/c/mingw710/prerequisites/i686-w64-mingw32-static
>>> > --with-mpfr=/c/mingw710/prerequisites/i686-w64-mingw32-static
>>> > --with-mpc=/c/mingw710/prerequisites/i686-w64-mingw32-static
>>> > --with-isl=/c/mingw710/prerequisites/i686-w64-mingw32-static
>>> > --with-pkgversion='i686-posix-dwarf-rev2, Built by MinGW-W64 project'
>>> > --with-bugurl=https://sourceforge.net/projects/mingw-w64 CFLAGS='-O2
>>> > -pipe
>>> > -fno-ident
>>> > -I/c/mingw710/i686-710-posix-dwarf-rt_v5-rev2/mingw32/opt/include
>>> > -I/c/mingw710/prerequisites/i686-zlib-static/include
>>> > -I/c/mingw710/prerequisites/i686-w64-mingw32-static/include'
>>> > CXXFLAGS='-O2
>>> > -pipe -fno-ident
>>> > -I/c/mingw710/i686-710-posix-dwarf-rt_v5-rev2/mingw32/opt/include
>>> > -I/c/mingw710/prerequisites/i686-zlib-static/include
>>> > -I/c/mingw710/prerequisites/i686-w64-mingw32-static/include' CPPFLAGS='
>>> > -I/c/mingw710/i686-710-posix-dwarf-rt_v5-rev2/mingw32/opt/include
>>> > -I/c/mingw710/prerequisites/i686-zlib-static/include
>>> > -I/c/mingw710/prerequisites/i686-w64-mingw32-static/include'
>>> > LDFLAGS='-pipe
>>> > -fno-ident
>>> > -L/c/mingw710/i686-710-posix-dwarf-rt_v5-rev2/mingw32/opt/lib
>>> > -L/c/mingw710/prerequisites/i686-zlib-static/lib
>>> > -L/c/mingw710/prerequisites/i686-w64-mingw32-static/lib
>>> > -Wl,--large-address-aware'
>>> > Thread model: posix
>>> > gcc version 7.1.0 (i686-posix-dwarf-rev2, Built by MinGW-W64 project)
>>> >
>>> > However, the dll is not loaded by csound. Would you mind to put the
>>> > binary
>>> > generated in some place at
>>> > which i can download it to find out whether it is a compilation or a
>>> > csound
>>> > issue?
>>> > My best.
>>> > JoM
>>> >
>>> >
>>> >
>>> > On Wed, Sep 13, 2017 at 10:44 PM, Steven Yi  wrote:
>>> >>
>>> >> I just compiled the .c file here (had to comment out the first line
>>> >> which had csound style ; comment instead of //) using mingw64 and
>>> >> command:
>>> >>
>>> >> gcc -O2 -shared -o newopc.dll newopc.c -DUSE_DOUBLE -I
>>> >> ../work/csound/csound/include
>>> >>
>>> >> then was able to run the newopc-test.csd here.
>>> >>
>>> >> I'm using MSYS2, gcc 7.2.0, Windows 10.
>>> >>
>>> >> $ gcc -v
>>> >> Using built-in specs.
>>> >> COLLECT_GCC=C:\msys64\mingw64\bin\gcc.exe
>>> >>
>>> >>
>>> >> COLLECT_LTO_WRAPPER=C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/7.2.0/lto-wrapper.exe
>>> >> Target: x86_64-w64-mingw32
>>> >> Configured with: ../gcc-7.2.0/configure --prefix=/mingw64
>>> >> --with-local-prefix=/mingw64/local --build=x86_64-w64-mingw32
>>> >> --host=x86_64-w64-mingw32 --target=x86_64-w64-mingw32
>>> >> --with-native-system-header-dir=/mingw64/x86_64-w64-mingw32/include
>>> >> --libexecdir=/mingw64/lib --enable-bootstrap --with-arch=x86-64
>>> >> --with-tune=generic
>>> >> --enable-languages=c,lto,c++,objc,obj-c++,fortran,ada --enable-shared
>>> >> --enable-static --enable-libatomic --enable-threads=posix
>>> >> --enable-graphite --enable-fully-dynamic-string
>>> >> --enable-libstdcxx-time=yes --disable-libstdcxx-pch
>>> >> --disable-libstdcxx-debug --disable-isl-version-check --enable-lto
>>> >> --enable-libgomp --disable-multilib --enable-checking=release
>>> >> --disable-rpath --disable-win32-registry --disable-nls
>>> >> --disable-werror --disable-symvers --with-libiconv --with-system-zlib
>>> >> --with-gmp=/mingw64 --with-mpfr=/mingw64 --with-mpc=/mingw64
>>> >> --with-isl=/mingw64 --with-pkgversion='Rev1, Built by MSYS2 project'
>>> >> --with-bugurl=https://sourceforge.net/projects/msys2 --with-gnu-as
>>> >> --with-gnu-ld
>>> >> Thread model: posix
>>> >> gcc version 7.2.0 (Rev1, Built by MSYS2 project)
>>> >>
>>> >>
>>> >>
>>> >> On Wed, Sep 13, 2017 at 9:30 PM, Joe Mantegna
>>> >> 
>>> >> wrote:
>>> >> > Actually, I got installed both cygwin64 and mingw-w64 and it
>>> >> > compiled
>>> >> > like a
>>> >> > charm, but with the same results.
>>> >> > That is: the dll generated is not loaded by Csound.
>>> >> > Any other suggestion?
>>> >> > JoM
>>> >> >
>>> >> > On Wed, Sep 13, 2017 at 12:15 AM, Joe Mantegna
>>> >> > 
>>> >> > wrote:
>>> >> >>
>>> >> >> Ahhh...that could be the reason, but i compiled also using gcc in
>>> >> >> Ubuntu
>>> >> >> 16.04 64 bits version the same code
>>> >> >> with the same result.
>>> >> >> Anyway, i will give a try installing MinGW64 and compiling, thanks.
>>> >> >>
>>> >> >> On Tue, Sep 12, 2017 at 8:55 PM, Michael Gogins
>>> >> >> 
>>> >> >> wrote:
>>> >> >>>
>>> >> >>> Probably Csound for Windows is compiled for 64 bit CPU
>>> >> >>> architecture
>>> >> >>> and
>>> >> >>> your plugin is complied for 32 bit CPU architecture. They both
>>> >> >>> have to
>>> >> >>> be
>>> >> >>> the same.
>>> >> >>>
>>> >> >>> On Sep 12, 2017 7:49 PM, "Joe Mantegna"
>>> >> >>> 
>>> >> >>> wrote:
>>> >> >>>>
>>> >> >>>> Hello folks, got some problem, can anyone help?
>>> >> >>>> I´ve compiled the plugin example by Victor Lazzarini that i found
>>> >> >>>> in
>>> >> >>>> the
>>> >> >>>> FLOSS Manual of Csound under Windows 10 using MinGW+MSYS and
>>> >> >>>> following the
>>> >> >>>> given compilation command (which is also a part of the example):
>>> >> >>>>
>>> >> >>>> gcc -O2 -shared -o myopc.dll opsrc.c -DUSE_DOUBLE
>>> >> >>>>     -I
>>> >> >>>>
>>> >> >>>>
>>> >> >>>> The compilation was absolutely smooth, but after that i copied
>>> >> >>>> the
>>> >> >>>> newopc.dll in the
>>> >> >>>> plugin6 folder of Csound, I've tried to run the csd example use
>>> >> >>>> and
>>> >> >>>> it
>>> >> >>>> did not work.
>>> >> >>>> Here is the output after running the csd code:
>>> >> >>>>
>>> >> >>>> virtual_keyboard real time MIDI plugin for Csound
>>> >> >>>> 0dBFS level = 32768.0
>>> >> >>>> --Csound version 6.09.1 (double samples) Jul 10 2017
>>> >> >>>> [commit: 8e8f7a02dc8f0677d10224f7ab18b63f63c80728]
>>> >> >>>> libsndfile-1.0.27
>>> >> >>>> WARNING: could not open library 'C:\Program
>>> >> >>>> Files\Csound6_x64\plugins64\\newopc.dll' (-1)
>>> >> >>>> WARNING: could not open library 'C:\Program
>>> >> >>>> Files\Csound6_x64\plugins64\\py.dll' (-1)
>>> >> >>>> UnifiedCSD: E:\csound-develop\newopc.csd
>>> >> >>>>
>>> >> >>>> STARTING FILE
>>> >> >>>> Creating options
>>> >> >>>> Creating orchestra
>>> >> >>>> scoreless operation
>>> >> >>>> Loading command-line libraries:
>>> >> >>>> rtaudio: PortAudio module enabled ...
>>> >> >>>> using callback interface
>>> >> >>>>
>>> >> >>>> error: syntax error, unexpected T_IDENT  (token "newopc") from
>>> >> >>>> file
>>> >> >>>> E:\csound-develop\newopc.csd (1)
>>> >> >>>>  line 11:
>>> >> >>>> >>>asig   newopc  <<<
>>> >> >>>> Unexpected untyped word asig when expecting a variable
>>> >> >>>> Parsing failed due to invalid input!
>>> >> >>>> Stopping on parser failure
>>> >> >>>> cannot compile orchestra
>>> >> >>>> end of score.              overall amps:      0.0
>>> >> >>>> 1 errors in performance
>>> >> >>>> Elapsed time at end of performance: real: 0.004s, CPU: 0.000s
>>> >> >>>>
>>> >> >>>> It seems that Csound doesn't load the compiled library, but i
>>> >> >>>> can't
>>> >> >>>> figure out
>>> >> >>>> what i am doing wrong. Code is attached.
>>> >> >>>> Thank you in advance.
>>> >> >>>>
>>> >> >>>> JoM
>>> >> >>>>
>>> >> >>>>
>>> >> >>
>>> >> >
>>> >
>>> >
>>
>>

I have the same version of Linux as you and it compiles, loads, and
runs for me AS I CORRECTED YOUR FILES.


-----------------------------------------------------
Michael Gogins
Irreducible Productions
http://michaelgogins.tumblr.com
Michael dot Gogins at gmail dot com


On Thu, Sep 14, 2017 at 5:31 PM, Joe Mantegna <joemantegna2006@gmail.com> wrote:
> Sorry, my last message was confusing.
> Under Windows 10 the binary compiled by Steven Yi loaded and run,
> so, it is a compilation issue that i could not solve yet. Mine compiles, but
> it is not
> loaded by Csound.
> Under Linux Ubuntu 16.04 LTS the library compiles but it is not loaded by
> Csound, apparently
> due to a compatibility problem.
> JoM
>
>
> On Thu, Sep 14, 2017 at 4:56 PM, Joe Mantegna <joemantegna2006@gmail.com>
> wrote:
>>
>> Many thanks, the library is loaded and the example runs. So, it is a
>> building issue.
>> I will try to build with the same compiler you used.
>> JoM
>>
>> On Thu, Sep 14, 2017 at 11:51 AM, Steven Yi <stevenyi@gmail.com> wrote:
>>>
>>> Try the file at:
>>>
>>> http://www.kunstmusik.com/newopc.dll
>>>
>>> On Thu, Sep 14, 2017 at 10:37 AM, Joe Mantegna
>>> <joemantegna2006@gmail.com> wrote:
>>> > Well...
>>> > I am compiling using this version, i don´t see significant changes:
>>> > C:\>gcc -v
>>> > Using built-in specs.
>>> > COLLECT_GCC=gcc
>>> > COLLECT_LTO_WRAPPER=C:/Program\ Files\
>>> >
>>> > (x86)/mingw-w64/i686-7.1.0-posix-dwarf-rt_v5-rev2/mingw32/bin/../libexec/gcc/i686-w64-mingw32/7.1.0/lto-wrapper.exe
>>> > Target: i686-w64-mingw32
>>> > Configured with: ../../../src/gcc-7.1.0/configure
>>> > --host=i686-w64-mingw32
>>> > --build=i686-w64-mingw32 --target=i686-w64-mingw32 --prefix=/mingw32
>>> > --with-sysroot=/c/mingw710/i686-710-posix-dwarf-rt_v5-rev2/mingw32
>>> > --enable-shared --enable-static --disable-multilib
>>> > --enable-languages=c,c++,fortran,lto --enable-libstdcxx-time=yes
>>> > --enable-threads=posix --enable-libgomp --enable-libatomic --enable-lto
>>> > --enable-graphite --enable-checking=release
>>> > --enable-fully-dynamic-string
>>> > --enable-version-specific-runtime-libs
>>> > --enable-libstdcxx-filesystem-ts=yes
>>> > --disable-sjlj-exceptions --with-dwarf2 --disable-libstdcxx-pch
>>> > --disable-libstdcxx-debug --enable-bootstrap --disable-rpath
>>> > --disable-win32-registry --disable-nls --disable-werror
>>> > --disable-symvers
>>> > --with-gnu-as --with-gnu-ld --with-arch=i686 --with-tune=generic
>>> > --with-libiconv --with-system-zlib
>>> > --with-gmp=/c/mingw710/prerequisites/i686-w64-mingw32-static
>>> > --with-mpfr=/c/mingw710/prerequisites/i686-w64-mingw32-static
>>> > --with-mpc=/c/mingw710/prerequisites/i686-w64-mingw32-static
>>> > --with-isl=/c/mingw710/prerequisites/i686-w64-mingw32-static
>>> > --with-pkgversion='i686-posix-dwarf-rev2, Built by MinGW-W64 project'
>>> > --with-bugurl=https://sourceforge.net/projects/mingw-w64 CFLAGS='-O2
>>> > -pipe
>>> > -fno-ident
>>> > -I/c/mingw710/i686-710-posix-dwarf-rt_v5-rev2/mingw32/opt/include
>>> > -I/c/mingw710/prerequisites/i686-zlib-static/include
>>> > -I/c/mingw710/prerequisites/i686-w64-mingw32-static/include'
>>> > CXXFLAGS='-O2
>>> > -pipe -fno-ident
>>> > -I/c/mingw710/i686-710-posix-dwarf-rt_v5-rev2/mingw32/opt/include
>>> > -I/c/mingw710/prerequisites/i686-zlib-static/include
>>> > -I/c/mingw710/prerequisites/i686-w64-mingw32-static/include' CPPFLAGS='
>>> > -I/c/mingw710/i686-710-posix-dwarf-rt_v5-rev2/mingw32/opt/include
>>> > -I/c/mingw710/prerequisites/i686-zlib-static/include
>>> > -I/c/mingw710/prerequisites/i686-w64-mingw32-static/include'
>>> > LDFLAGS='-pipe
>>> > -fno-ident
>>> > -L/c/mingw710/i686-710-posix-dwarf-rt_v5-rev2/mingw32/opt/lib
>>> > -L/c/mingw710/prerequisites/i686-zlib-static/lib
>>> > -L/c/mingw710/prerequisites/i686-w64-mingw32-static/lib
>>> > -Wl,--large-address-aware'
>>> > Thread model: posix
>>> > gcc version 7.1.0 (i686-posix-dwarf-rev2, Built by MinGW-W64 project)
>>> >
>>> > However, the dll is not loaded by csound. Would you mind to put the
>>> > binary
>>> > generated in some place at
>>> > which i can download it to find out whether it is a compilation or a
>>> > csound
>>> > issue?
>>> > My best.
>>> > JoM
>>> >
>>> >
>>> >
>>> > On Wed, Sep 13, 2017 at 10:44 PM, Steven Yi <stevenyi@gmail.com> wrote:
>>> >>
>>> >> I just compiled the .c file here (had to comment out the first line
>>> >> which had csound style ; comment instead of //) using mingw64 and
>>> >> command:
>>> >>
>>> >> gcc -O2 -shared -o newopc.dll newopc.c -DUSE_DOUBLE -I
>>> >> ../work/csound/csound/include
>>> >>
>>> >> then was able to run the newopc-test.csd here.
>>> >>
>>> >> I'm using MSYS2, gcc 7.2.0, Windows 10.
>>> >>
>>> >> $ gcc -v
>>> >> Using built-in specs.
>>> >> COLLECT_GCC=C:\msys64\mingw64\bin\gcc.exe
>>> >>
>>> >>
>>> >> COLLECT_LTO_WRAPPER=C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/7.2.0/lto-wrapper.exe
>>> >> Target: x86_64-w64-mingw32
>>> >> Configured with: ../gcc-7.2.0/configure --prefix=/mingw64
>>> >> --with-local-prefix=/mingw64/local --build=x86_64-w64-mingw32
>>> >> --host=x86_64-w64-mingw32 --target=x86_64-w64-mingw32
>>> >> --with-native-system-header-dir=/mingw64/x86_64-w64-mingw32/include
>>> >> --libexecdir=/mingw64/lib --enable-bootstrap --with-arch=x86-64
>>> >> --with-tune=generic
>>> >> --enable-languages=c,lto,c++,objc,obj-c++,fortran,ada --enable-shared
>>> >> --enable-static --enable-libatomic --enable-threads=posix
>>> >> --enable-graphite --enable-fully-dynamic-string
>>> >> --enable-libstdcxx-time=yes --disable-libstdcxx-pch
>>> >> --disable-libstdcxx-debug --disable-isl-version-check --enable-lto
>>> >> --enable-libgomp --disable-multilib --enable-checking=release
>>> >> --disable-rpath --disable-win32-registry --disable-nls
>>> >> --disable-werror --disable-symvers --with-libiconv --with-system-zlib
>>> >> --with-gmp=/mingw64 --with-mpfr=/mingw64 --with-mpc=/mingw64
>>> >> --with-isl=/mingw64 --with-pkgversion='Rev1, Built by MSYS2 project'
>>> >> --with-bugurl=https://sourceforge.net/projects/msys2 --with-gnu-as
>>> >> --with-gnu-ld
>>> >> Thread model: posix
>>> >> gcc version 7.2.0 (Rev1, Built by MSYS2 project)
>>> >>
>>> >>
>>> >>
>>> >> On Wed, Sep 13, 2017 at 9:30 PM, Joe Mantegna
>>> >> <joemantegna2006@gmail.com>
>>> >> wrote:
>>> >> > Actually, I got installed both cygwin64 and mingw-w64 and it
>>> >> > compiled
>>> >> > like a
>>> >> > charm, but with the same results.
>>> >> > That is: the dll generated is not loaded by Csound.
>>> >> > Any other suggestion?
>>> >> > JoM
>>> >> >
>>> >> > On Wed, Sep 13, 2017 at 12:15 AM, Joe Mantegna
>>> >> > <joemantegna2006@gmail.com>
>>> >> > wrote:
>>> >> >>
>>> >> >> Ahhh...that could be the reason, but i compiled also using gcc in
>>> >> >> Ubuntu
>>> >> >> 16.04 64 bits version the same code
>>> >> >> with the same result.
>>> >> >> Anyway, i will give a try installing MinGW64 and compiling, thanks.
>>> >> >>
>>> >> >> On Tue, Sep 12, 2017 at 8:55 PM, Michael Gogins
>>> >> >> <michael.gogins@gmail.com>
>>> >> >> wrote:
>>> >> >>>
>>> >> >>> Probably Csound for Windows is compiled for 64 bit CPU
>>> >> >>> architecture
>>> >> >>> and
>>> >> >>> your plugin is complied for 32 bit CPU architecture. They both
>>> >> >>> have to
>>> >> >>> be
>>> >> >>> the same.
>>> >> >>>
>>> >> >>> On Sep 12, 2017 7:49 PM, "Joe Mantegna"
>>> >> >>> <joemantegna2006@gmail.com>
>>> >> >>> wrote:
>>> >> >>>>
>>> >> >>>> Hello folks, got some problem, can anyone help?
>>> >> >>>> I´ve compiled the plugin example by Victor Lazzarini that i found
>>> >> >>>> in
>>> >> >>>> the
>>> >> >>>> FLOSS Manual of Csound under Windows 10 using MinGW+MSYS and
>>> >> >>>> following the
>>> >> >>>> given compilation command (which is also a part of the example):
>>> >> >>>>
>>> >> >>>> gcc -O2 -shared -o myopc.dll opsrc.c -DUSE_DOUBLE
>>> >> >>>>     -I<path to Csound headers>
>>> >> >>>>
>>> >> >>>>
>>> >> >>>> The compilation was absolutely smooth, but after that i copied
>>> >> >>>> the
>>> >> >>>> newopc.dll in the
>>> >> >>>> plugin6 folder of Csound, I've tried to run the csd example use
>>> >> >>>> and
>>> >> >>>> it
>>> >> >>>> did not work.
>>> >> >>>> Here is the output after running the csd code:
>>> >> >>>>
>>> >> >>>> virtual_keyboard real time MIDI plugin for Csound
>>> >> >>>> 0dBFS level = 32768.0
>>> >> >>>> --Csound version 6.09.1 (double samples) Jul 10 2017
>>> >> >>>> [commit: 8e8f7a02dc8f0677d10224f7ab18b63f63c80728]
>>> >> >>>> libsndfile-1.0.27
>>> >> >>>> WARNING: could not open library 'C:\Program
>>> >> >>>> Files\Csound6_x64\plugins64\\newopc.dll' (-1)
>>> >> >>>> WARNING: could not open library 'C:\Program
>>> >> >>>> Files\Csound6_x64\plugins64\\py.dll' (-1)
>>> >> >>>> UnifiedCSD: E:\csound-develop\newopc.csd
>>> >> >>>>
>>> >> >>>> STARTING FILE
>>> >> >>>> Creating options
>>> >> >>>> Creating orchestra
>>> >> >>>> scoreless operation
>>> >> >>>> Loading command-line libraries:
>>> >> >>>> rtaudio: PortAudio module enabled ...
>>> >> >>>> using callback interface
>>> >> >>>>
>>> >> >>>> error: syntax error, unexpected T_IDENT  (token "newopc") from
>>> >> >>>> file
>>> >> >>>> E:\csound-develop\newopc.csd (1)
>>> >> >>>>  line 11:
>>> >> >>>> >>>asig   newopc  <<<
>>> >> >>>> Unexpected untyped word asig when expecting a variable
>>> >> >>>> Parsing failed due to invalid input!
>>> >> >>>> Stopping on parser failure
>>> >> >>>> cannot compile orchestra
>>> >> >>>> end of score.              overall amps:      0.0
>>> >> >>>> 1 errors in performance
>>> >> >>>> Elapsed time at end of performance: real: 0.004s, CPU: 0.000s
>>> >> >>>>
>>> >> >>>> It seems that Csound doesn't load the compiled library, but i
>>> >> >>>> can't
>>> >> >>>> figure out
>>> >> >>>> what i am doing wrong. Code is attached.
>>> >> >>>> Thank you in advance.
>>> >> >>>>
>>> >> >>>> JoM
>>> >> >>>>
>>> >> >>>>
>>> >> >>
>>> >> >
>>> >
>>> >
>>
>>
>