*Warning*

actually the CMakeLists.txt script seemed to be completely buggered. I think I fixed it now. 
Can you try it? You’ll need libsndfile installed I reckon, but you should not need any special configuration.

========================
Prof. Victor Lazzarini
Maynooth University
Ireland

> On 2 Oct 2021, at 20:22, Iain Duncan  wrote:
> 
> WARNINGThis email originated from outside of Maynooth University's Mail System. Do not reply, click links or open attachments unless you recognise the sender and know the content is safe.
> Hi Victor (and others), I'm trying to build csound6~ from scratch so I can poke at it to figure things out for the max version, but having never used Cmake before, I'm having some issues. I have built a Pd external before, but was using the pd lib builder helper.
> 
> I have installed the csound framework, and I have told Cmake where to find the pd header file, but on make I'm getting a linker error for libsndfile. I did try downloading and installing libsndfile, but that didn't change anything. Not sure if i need to specify where it is, or if this is not actually the issue and I'm doing something silly. Output is below:
> 
> thanks!
> 
> MacBook-Pro-7:build iainduncan$ make
> /Applications/CMake.app/Contents/bin/cmake -S/Users/iainduncan/Documents/code/pd/csound_pd -B/Users/iainduncan/Documents/code/pd/csound_pd/build --check-build-system CMakeFiles/Makefile.cmake 0
> /Applications/CMake.app/Contents/bin/cmake -E cmake_progress_start /Users/iainduncan/Documents/code/pd/csound_pd/build/CMakeFiles /Users/iainduncan/Documents/code/pd/csound_pd/build//CMakeFiles/progress.marks
> /Library/Developer/CommandLineTools/usr/bin/make  -f CMakeFiles/Makefile2 all
> /Library/Developer/CommandLineTools/usr/bin/make  -f CMakeFiles/pdcsound.dir/build.make CMakeFiles/pdcsound.dir/depend
> cd /Users/iainduncan/Documents/code/pd/csound_pd/build && /Applications/CMake.app/Contents/bin/cmake -E cmake_depends "Unix Makefiles" /Users/iainduncan/Documents/code/pd/csound_pd /Users/iainduncan/Documents/code/pd/csound_pd /Users/iainduncan/Documents/code/pd/csound_pd/build /Users/iainduncan/Documents/code/pd/csound_pd/build /Users/iainduncan/Documents/code/pd/csound_pd/build/CMakeFiles/pdcsound.dir/DependInfo.cmake --color=
> /Library/Developer/CommandLineTools/usr/bin/make  -f CMakeFiles/pdcsound.dir/build.make CMakeFiles/pdcsound.dir/build
> [ 50%] Linking C shared module "csound6~.pd_darwin"
> /Applications/CMake.app/Contents/bin/cmake -E cmake_link_script CMakeFiles/pdcsound.dir/link.txt --verbose=1
> /Library/Developer/CommandLineTools/usr/bin/cc  -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX10.14.sdk -bundle -Wl,-headerpad_max_install_names -flat_namespace -undefined suppress -o "csound6~.pd_darwin" CMakeFiles/pdcsound.dir/src/csoundapi_tilde.c.o -F/Library/Frameworks  -framework CsoundLib64
> ld: file not found: @loader_path/../../libs/libsndfile.1.dylib for architecture x86_64
> clang: error: linker command failed with exit code 1 (use -v to see invocation)
> make[2]: *** [csound6~.pd_darwin] Error 1
> make[1]: *** [CMakeFiles/pdcsound.dir/all] Error 2
> make: *** [all] Error 2
> MacBook-Pro-7:build iainduncan$

No, there’s some other linking problem. I’ll need to try to fix it. That was never there before.
========================
Prof. Victor Lazzarini
Maynooth University
Ireland

> On 2 Oct 2021, at 21:12, Victor Lazzarini  wrote:
> 
> actually the CMakeLists.txt script seemed to be completely buggered. I think I fixed it now. 
> Can you try it? You’ll need libsndfile installed I reckon, but you should not need any special configuration.
> 
> ========================
> Prof. Victor Lazzarini
> Maynooth University
> Ireland
> 
>> On 2 Oct 2021, at 20:22, Iain Duncan  wrote:
>> 
>> WARNINGThis email originated from outside of Maynooth University's Mail System. Do not reply, click links or open attachments unless you recognise the sender and know the content is safe.
>> Hi Victor (and others), I'm trying to build csound6~ from scratch so I can poke at it to figure things out for the max version, but having never used Cmake before, I'm having some issues. I have built a Pd external before, but was using the pd lib builder helper.
>> 
>> I have installed the csound framework, and I have told Cmake where to find the pd header file, but on make I'm getting a linker error for libsndfile. I did try downloading and installing libsndfile, but that didn't change anything. Not sure if i need to specify where it is, or if this is not actually the issue and I'm doing something silly. Output is below:
>> 
>> thanks!
>> 
>> MacBook-Pro-7:build iainduncan$ make
>> /Applications/CMake.app/Contents/bin/cmake -S/Users/iainduncan/Documents/code/pd/csound_pd -B/Users/iainduncan/Documents/code/pd/csound_pd/build --check-build-system CMakeFiles/Makefile.cmake 0
>> /Applications/CMake.app/Contents/bin/cmake -E cmake_progress_start /Users/iainduncan/Documents/code/pd/csound_pd/build/CMakeFiles /Users/iainduncan/Documents/code/pd/csound_pd/build//CMakeFiles/progress.marks
>> /Library/Developer/CommandLineTools/usr/bin/make  -f CMakeFiles/Makefile2 all
>> /Library/Developer/CommandLineTools/usr/bin/make  -f CMakeFiles/pdcsound.dir/build.make CMakeFiles/pdcsound.dir/depend
>> cd /Users/iainduncan/Documents/code/pd/csound_pd/build && /Applications/CMake.app/Contents/bin/cmake -E cmake_depends "Unix Makefiles" /Users/iainduncan/Documents/code/pd/csound_pd /Users/iainduncan/Documents/code/pd/csound_pd /Users/iainduncan/Documents/code/pd/csound_pd/build /Users/iainduncan/Documents/code/pd/csound_pd/build /Users/iainduncan/Documents/code/pd/csound_pd/build/CMakeFiles/pdcsound.dir/DependInfo.cmake --color=
>> /Library/Developer/CommandLineTools/usr/bin/make  -f CMakeFiles/pdcsound.dir/build.make CMakeFiles/pdcsound.dir/build
>> [ 50%] Linking C shared module "csound6~.pd_darwin"
>> /Applications/CMake.app/Contents/bin/cmake -E cmake_link_script CMakeFiles/pdcsound.dir/link.txt --verbose=1
>> /Library/Developer/CommandLineTools/usr/bin/cc  -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX10.14.sdk -bundle -Wl,-headerpad_max_install_names -flat_namespace -undefined suppress -o "csound6~.pd_darwin" CMakeFiles/pdcsound.dir/src/csoundapi_tilde.c.o -F/Library/Frameworks  -framework CsoundLib64
>> ld: file not found: @loader_path/../../libs/libsndfile.1.dylib for architecture x86_64
>> clang: error: linker command failed with exit code 1 (use -v to see invocation)
>> make[2]: *** [csound6~.pd_darwin] Error 1
>> make[1]: *** [CMakeFiles/pdcsound.dir/all] Error 2
>> make: *** [all] Error 2
>> MacBook-Pro-7:build iainduncan$
> 

I have to figure out why CMake is making a mess of it. For the moment, you can build the object with the following 
command (assuming your m_pd.h is in in /usr/local/include  and that you are in the top directory of the sources)

cc -bundle -Wl,-headerpad_max_install_names -flat_namespace -undefined suppress -o "csound6~.pd_darwin" ./src/csoundapi_tilde.c -F /Library/Frameworks -framework CsoundLib64 -I/usr/local/include

For some reason, CMake is building a command line that does not work all that well.
========================
Prof. Victor Lazzarini
Maynooth University
Ireland

> On 2 Oct 2021, at 20:22, Iain Duncan  wrote:
> 
> WARNINGThis email originated from outside of Maynooth University's Mail System. Do not reply, click links or open attachments unless you recognise the sender and know the content is safe.
> Hi Victor (and others), I'm trying to build csound6~ from scratch so I can poke at it to figure things out for the max version, but having never used Cmake before, I'm having some issues. I have built a Pd external before, but was using the pd lib builder helper.
> 
> I have installed the csound framework, and I have told Cmake where to find the pd header file, but on make I'm getting a linker error for libsndfile. I did try downloading and installing libsndfile, but that didn't change anything. Not sure if i need to specify where it is, or if this is not actually the issue and I'm doing something silly. Output is below:
> 
> thanks!
> 
> MacBook-Pro-7:build iainduncan$ make
> /Applications/CMake.app/Contents/bin/cmake -S/Users/iainduncan/Documents/code/pd/csound_pd -B/Users/iainduncan/Documents/code/pd/csound_pd/build --check-build-system CMakeFiles/Makefile.cmake 0
> /Applications/CMake.app/Contents/bin/cmake -E cmake_progress_start /Users/iainduncan/Documents/code/pd/csound_pd/build/CMakeFiles /Users/iainduncan/Documents/code/pd/csound_pd/build//CMakeFiles/progress.marks
> /Library/Developer/CommandLineTools/usr/bin/make  -f CMakeFiles/Makefile2 all
> /Library/Developer/CommandLineTools/usr/bin/make  -f CMakeFiles/pdcsound.dir/build.make CMakeFiles/pdcsound.dir/depend
> cd /Users/iainduncan/Documents/code/pd/csound_pd/build && /Applications/CMake.app/Contents/bin/cmake -E cmake_depends "Unix Makefiles" /Users/iainduncan/Documents/code/pd/csound_pd /Users/iainduncan/Documents/code/pd/csound_pd /Users/iainduncan/Documents/code/pd/csound_pd/build /Users/iainduncan/Documents/code/pd/csound_pd/build /Users/iainduncan/Documents/code/pd/csound_pd/build/CMakeFiles/pdcsound.dir/DependInfo.cmake --color=
> /Library/Developer/CommandLineTools/usr/bin/make  -f CMakeFiles/pdcsound.dir/build.make CMakeFiles/pdcsound.dir/build
> [ 50%] Linking C shared module "csound6~.pd_darwin"
> /Applications/CMake.app/Contents/bin/cmake -E cmake_link_script CMakeFiles/pdcsound.dir/link.txt --verbose=1
> /Library/Developer/CommandLineTools/usr/bin/cc  -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX10.14.sdk -bundle -Wl,-headerpad_max_install_names -flat_namespace -undefined suppress -o "csound6~.pd_darwin" CMakeFiles/pdcsound.dir/src/csoundapi_tilde.c.o -F/Library/Frameworks  -framework CsoundLib64
> ld: file not found: @loader_path/../../libs/libsndfile.1.dylib for architecture x86_64
> clang: error: linker command failed with exit code 1 (use -v to see invocation)
> make[2]: *** [csound6~.pd_darwin] Error 1
> make[1]: *** [CMakeFiles/pdcsound.dir/all] Error 2
> make: *** [all] Error 2
> MacBook-Pro-7:build iainduncan$

It’s a stupid thing. CMake finds your installed sysroot and calls the compiler with a given isysroot, eg.

/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/cc  -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX11.3.sdk

Then when it’s linking it needs all of the libraries that are named in CsoundLib64

otool -L /Library/Frameworks/CsoundLib64.framework/CsoundLib64
/Library/Frameworks/CsoundLib64.framework/CsoundLib64:
	/Library/Frameworks/CsoundLib64.framework/CsoundLib64 (compatibility version 6.0.0, current version 0.0.0)
	@loader_path/../../libs/libsndfile.1.dylib (compatibility version 2.0.0, current version 2.28.0)
	/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1292.100.5)
	/usr/lib/libcurl.4.dylib (compatibility version 7.0.0, current version 9.0.0)
	/System/Library/Frameworks/Accelerate.framework/Versions/A/Accelerate (compatibility version 1.0.0, current version 4.0.0)

one of these is the bundled libsndfile. But because of the relative location with @loader_path, it can’t be passed anything as a link
lib and it fails. Nothing gets passed this. 

However, if you just compile/link using cc everything is fine and there’s no need for an extra library. However, I can’t coerce CMake
to just use ‘cc’.

This was never a problem before, so I don’t really know what the matter is. For the moment, CMake builds on MacOS for csound_pd
are broken. So the only way is to compile it directly. I spent the last couple of hours trying to figure out a solution but nothing seems to
work.

This also means that using CMake to build other Csound API clients on MacOS will fail.
========================
Prof. Victor Lazzarini
Maynooth University
Ireland

> On 2 Oct 2021, at 22:20, Iain Duncan  wrote:
> 
> Great, that did it! 
> 
> Thanks Victor. If you need a tester on another machine for a fix to the cmake bit, happy to help
> 
> iain
> 
> On Sat, Oct 2, 2021 at 1:48 PM Victor Lazzarini  wrote:
> I have to figure out why CMake is making a mess of it. For the moment, you can build the object with the following 
> command (assuming your m_pd.h is in in /usr/local/include  and that you are in the top directory of the sources)
> 
> cc -bundle -Wl,-headerpad_max_install_names -flat_namespace -undefined suppress -o "csound6~.pd_darwin" ./src/csoundapi_tilde.c -F /Library/Frameworks -framework CsoundLib64 -I/usr/local/include
> 
> For some reason, CMake is building a command line that does not work all that well.
> ========================
> Prof. Victor Lazzarini
> Maynooth University
> Ireland
> 
> > On 2 Oct 2021, at 20:22, Iain Duncan  wrote:
> > 
> > WARNINGThis email originated from outside of Maynooth University's Mail System. Do not reply, click links or open attachments unless you recognise the sender and know the content is safe.
> > Hi Victor (and others), I'm trying to build csound6~ from scratch so I can poke at it to figure things out for the max version, but having never used Cmake before, I'm having some issues. I have built a Pd external before, but was using the pd lib builder helper.
> > 
> > I have installed the csound framework, and I have told Cmake where to find the pd header file, but on make I'm getting a linker error for libsndfile. I did try downloading and installing libsndfile, but that didn't change anything. Not sure if i need to specify where it is, or if this is not actually the issue and I'm doing something silly. Output is below:
> > 
> > thanks!
> > 
> > MacBook-Pro-7:build iainduncan$ make
> > /Applications/CMake.app/Contents/bin/cmake -S/Users/iainduncan/Documents/code/pd/csound_pd -B/Users/iainduncan/Documents/code/pd/csound_pd/build --check-build-system CMakeFiles/Makefile.cmake 0
> > /Applications/CMake.app/Contents/bin/cmake -E cmake_progress_start /Users/iainduncan/Documents/code/pd/csound_pd/build/CMakeFiles /Users/iainduncan/Documents/code/pd/csound_pd/build//CMakeFiles/progress.marks
> > /Library/Developer/CommandLineTools/usr/bin/make  -f CMakeFiles/Makefile2 all
> > /Library/Developer/CommandLineTools/usr/bin/make  -f CMakeFiles/pdcsound.dir/build.make CMakeFiles/pdcsound.dir/depend
> > cd /Users/iainduncan/Documents/code/pd/csound_pd/build && /Applications/CMake.app/Contents/bin/cmake -E cmake_depends "Unix Makefiles" /Users/iainduncan/Documents/code/pd/csound_pd /Users/iainduncan/Documents/code/pd/csound_pd /Users/iainduncan/Documents/code/pd/csound_pd/build /Users/iainduncan/Documents/code/pd/csound_pd/build /Users/iainduncan/Documents/code/pd/csound_pd/build/CMakeFiles/pdcsound.dir/DependInfo.cmake --color=
> > /Library/Developer/CommandLineTools/usr/bin/make  -f CMakeFiles/pdcsound.dir/build.make CMakeFiles/pdcsound.dir/build
> > [ 50%] Linking C shared module "csound6~.pd_darwin"
> > /Applications/CMake.app/Contents/bin/cmake -E cmake_link_script CMakeFiles/pdcsound.dir/link.txt --verbose=1
> > /Library/Developer/CommandLineTools/usr/bin/cc  -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX10.14.sdk -bundle -Wl,-headerpad_max_install_names -flat_namespace -undefined suppress -o "csound6~.pd_darwin" CMakeFiles/pdcsound.dir/src/csoundapi_tilde.c.o -F/Library/Frameworks  -framework CsoundLib64
> > ld: file not found: @loader_path/../../libs/libsndfile.1.dylib for architecture x86_64
> > clang: error: linker command failed with exit code 1 (use -v to see invocation)
> > make[2]: *** [csound6~.pd_darwin] Error 1
> > make[1]: *** [CMakeFiles/pdcsound.dir/all] Error 2
> > make: *** [all] Error 2
> > MacBook-Pro-7:build iainduncan$

I think this is finally solved, I managed to make CMake build without setting isysroot and just using the cc command.
You can try now and see if it works for you.
========================
Prof. Victor Lazzarini
Maynooth University
Ireland

> On 2 Oct 2021, at 22:36, Victor Lazzarini  wrote:
> 
> It’s a stupid thing. CMake finds your installed sysroot and calls the compiler with a given isysroot, eg.
> 
> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/cc  -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX11.3.sdk
> 
> Then when it’s linking it needs all of the libraries that are named in CsoundLib64
> 
> otool -L /Library/Frameworks/CsoundLib64.framework/CsoundLib64
> /Library/Frameworks/CsoundLib64.framework/CsoundLib64:
> 	/Library/Frameworks/CsoundLib64.framework/CsoundLib64 (compatibility version 6.0.0, current version 0.0.0)
> 	@loader_path/../../libs/libsndfile.1.dylib (compatibility version 2.0.0, current version 2.28.0)
> 	/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1292.100.5)
> 	/usr/lib/libcurl.4.dylib (compatibility version 7.0.0, current version 9.0.0)
> 	/System/Library/Frameworks/Accelerate.framework/Versions/A/Accelerate (compatibility version 1.0.0, current version 4.0.0)
> 
> one of these is the bundled libsndfile. But because of the relative location with @loader_path, it can’t be passed anything as a link
> lib and it fails. Nothing gets passed this. 
> 
> However, if you just compile/link using cc everything is fine and there’s no need for an extra library. However, I can’t coerce CMake
> to just use ‘cc’.
> 
> This was never a problem before, so I don’t really know what the matter is. For the moment, CMake builds on MacOS for csound_pd
> are broken. So the only way is to compile it directly. I spent the last couple of hours trying to figure out a solution but nothing seems to
> work.
> 
> This also means that using CMake to build other Csound API clients on MacOS will fail.
> ========================
> Prof. Victor Lazzarini
> Maynooth University
> Ireland
> 
>> On 2 Oct 2021, at 22:20, Iain Duncan  wrote:
>> 
>> Great, that did it! 
>> 
>> Thanks Victor. If you need a tester on another machine for a fix to the cmake bit, happy to help
>> 
>> iain
>> 
>> On Sat, Oct 2, 2021 at 1:48 PM Victor Lazzarini  wrote:
>> I have to figure out why CMake is making a mess of it. For the moment, you can build the object with the following 
>> command (assuming your m_pd.h is in in /usr/local/include  and that you are in the top directory of the sources)
>> 
>> cc -bundle -Wl,-headerpad_max_install_names -flat_namespace -undefined suppress -o "csound6~.pd_darwin" ./src/csoundapi_tilde.c -F /Library/Frameworks -framework CsoundLib64 -I/usr/local/include
>> 
>> For some reason, CMake is building a command line that does not work all that well.
>> ========================
>> Prof. Victor Lazzarini
>> Maynooth University
>> Ireland
>> 
>>> On 2 Oct 2021, at 20:22, Iain Duncan  wrote:
>>> 
>>> WARNINGThis email originated from outside of Maynooth University's Mail System. Do not reply, click links or open attachments unless you recognise the sender and know the content is safe.
>>> Hi Victor (and others), I'm trying to build csound6~ from scratch so I can poke at it to figure things out for the max version, but having never used Cmake before, I'm having some issues. I have built a Pd external before, but was using the pd lib builder helper.
>>> 
>>> I have installed the csound framework, and I have told Cmake where to find the pd header file, but on make I'm getting a linker error for libsndfile. I did try downloading and installing libsndfile, but that didn't change anything. Not sure if i need to specify where it is, or if this is not actually the issue and I'm doing something silly. Output is below:
>>> 
>>> thanks!
>>> 
>>> MacBook-Pro-7:build iainduncan$ make
>>> /Applications/CMake.app/Contents/bin/cmake -S/Users/iainduncan/Documents/code/pd/csound_pd -B/Users/iainduncan/Documents/code/pd/csound_pd/build --check-build-system CMakeFiles/Makefile.cmake 0
>>> /Applications/CMake.app/Contents/bin/cmake -E cmake_progress_start /Users/iainduncan/Documents/code/pd/csound_pd/build/CMakeFiles /Users/iainduncan/Documents/code/pd/csound_pd/build//CMakeFiles/progress.marks
>>> /Library/Developer/CommandLineTools/usr/bin/make  -f CMakeFiles/Makefile2 all
>>> /Library/Developer/CommandLineTools/usr/bin/make  -f CMakeFiles/pdcsound.dir/build.make CMakeFiles/pdcsound.dir/depend
>>> cd /Users/iainduncan/Documents/code/pd/csound_pd/build && /Applications/CMake.app/Contents/bin/cmake -E cmake_depends "Unix Makefiles" /Users/iainduncan/Documents/code/pd/csound_pd /Users/iainduncan/Documents/code/pd/csound_pd /Users/iainduncan/Documents/code/pd/csound_pd/build /Users/iainduncan/Documents/code/pd/csound_pd/build /Users/iainduncan/Documents/code/pd/csound_pd/build/CMakeFiles/pdcsound.dir/DependInfo.cmake --color=
>>> /Library/Developer/CommandLineTools/usr/bin/make  -f CMakeFiles/pdcsound.dir/build.make CMakeFiles/pdcsound.dir/build
>>> [ 50%] Linking C shared module "csound6~.pd_darwin"
>>> /Applications/CMake.app/Contents/bin/cmake -E cmake_link_script CMakeFiles/pdcsound.dir/link.txt --verbose=1
>>> /Library/Developer/CommandLineTools/usr/bin/cc  -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX10.14.sdk -bundle -Wl,-headerpad_max_install_names -flat_namespace -undefined suppress -o "csound6~.pd_darwin" CMakeFiles/pdcsound.dir/src/csoundapi_tilde.c.o -F/Library/Frameworks  -framework CsoundLib64
>>> ld: file not found: @loader_path/../../libs/libsndfile.1.dylib for architecture x86_64
>>> clang: error: linker command failed with exit code 1 (use -v to see invocation)
>>> make[2]: *** [csound6~.pd_darwin] Error 1
>>> make[1]: *** [CMakeFiles/pdcsound.dir/all] Error 2
>>> make: *** [all] Error 2
>>> MacBook-Pro-7:build iainduncan$
>