Re: About compiling on macOS

Jaikiran Pai Sun, 27 Apr 2025 00:35:50 -0700

A previous report too suggests that the JDK build fails (due to compilerwarnings) when using 16.3 of Xcode on macos. Do you have access to a15.4 version of Xcode instead? If so, then you can use"--with-xcode-path" during configure to point to that installation ofXcode and build the JDK (more details in the documentation herehttps://github.com/openjdk/jdk/blob/master/doc/building.md#apple-xcode).I believe that version should be fine.

If you cannot use any other XCode other than 16.3, then you can buildthe JDK by using the "--disable-warnings-as-errors" configure option(more details herehttps://github.com/openjdk/jdk/blob/master/doc/building.md#problems-with-the-build-environment).Another user has reported previously that this option allowed them tosuccessfully build with XCode 16.3.

Long term, the warnings from that part of the code will have to beinvestigated in the JDK.


-Jaikiran

On 27/04/25 11:30 am, mit...@daisuke2.com wrote:

I have just compiled in the master branch. As a result, I am struggling with 
the following compilation errors.

Configuration summary:
* Name:           macosx-aarch64-server-release
* Debug level:    release
* HS debug level: product
* JVM variants:   server
-n * JVM features:
-n server: 'cds compiler1 compiler2 dtrace epsilongc g1gc jfr jni-check jvmci 
jvmti management parallelgc serialgc services shenandoahgc vm-structs zgc'

* OpenJDK target: OS: macosx, CPU architecture: aarch64, address length: 64
* Version string: 25-internal-adhoc.mitani.jdk (25-internal)
* Source date:    1745733212 (2025-04-27T05:53:32Z)

Tools summary:
* Boot JDK:       openjdk version "24.0.1" 2025-04-15 OpenJDK Runtime 
Environment Corretto-24.0.1.9.1 (build 24.0.1+9-FR) OpenJDK 64-Bit Server VM 
Corretto-24.0.1.9.1 (build 24.0.1+9-FR, mixed mode, sharing) (at 
/Library/Java/JavaVirtualMachines/amazon-corretto-24.jdk/Contents/Home)
* Toolchain:      clang (clang/LLVM from Xcode 16.3)
* Sysroot:        
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.4.sdk
* C Compiler:     Version 17.0.0 (at /usr/bin/clang)
* C++ Compiler:   Version 17.0.0 (at /usr/bin/clang++)



git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:127:39:
 error: variable length arrays in C++ are a Clang extension 
[-Werror,-Wvla-cxx-extension]
127 | AudioDeviceID devices[count];
| ^~~~~
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:127:39:
 note: read of non-const variable 'count' is not allowed in a constant 
expression
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:126:21:
 note: declared here
126 | int count = size/sizeof(AudioDeviceID);
| ^
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:151:42:
 error: variable length arrays in C++ are a Clang extension 
[-Werror,-Wvla-cxx-extension]
151 | AudioObjectID controlIDs[count];
| ^~~~~
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:151:42:
 note: read of non-const variable 'count' is not allowed in a constant 
expression
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:150:21:
 note: declared here
150 | int count = size / sizeof(AudioObjectID);
| ^
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:483:38:
 error: variable length arrays in C++ are a Clang extension 
[-Werror,-Wvla-cxx-extension]
483 | AudioObjectID controlIDs[mixer->deviceControlCount];
| ^~~~~~~~~~~~~~~~~~~~~~~~~
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:483:38:
 note: read of non-constexpr variable 'mixer' is not allowed in a constant 
expression
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:458:16:
 note: declared here
458 | PortMixer *mixer = (PortMixer *)id;
| ^
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:527:34:
 error: variable length arrays in C++ are a Clang extension 
[-Werror,-Wvla-cxx-extension]
527 | AudioControl* volumeControls[totalChannels+1]; // 0 - for master channel
| ^~~~~~~~~~~~~~~
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:527:34:
 note: read of non-const variable 'totalChannels' is not allowed in a constant 
expression
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:524:9:
 note: declared here
524 | int totalChannels = GetChannelCount(mixer->deviceID, port->scope == 
kAudioDevicePropertyScopeOutput ? 1 : 0);
| ^
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:529:32:
 error: variable length arrays in C++ are a Clang extension 
[-Werror,-Wvla-cxx-extension]
529 | AudioControl* muteControls[totalChannels+1]; // 0 - for master channel
| ^~~~~~~~~~~~~~~
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:529:32:
 note: read of non-const variable 'totalChannels' is not allowed in a constant 
expression
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:524:9:
 note: declared here
524 | int totalChannels = GetChannelCount(mixer->deviceID, port->scope == 
kAudioDevicePropertyScopeOutput ? 1 : 0);
| ^
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:775:24:
 error: variable length arrays in C++ are a Clang extension 
[-Werror,-Wvla-cxx-extension]
775 | Float32 subVolumes[control->controlCount];
| ^~~~~~~~~~~~~~~~~~~~~
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:775:24:
 note: read of non-constexpr variable 'control' is not allowed in a constant 
expression
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:772:18:
 note: declared here
772 | PortControl *control = (PortControl *)controlIDV;
| ^
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:824:24:
 error: variable length arrays in C++ are a Clang extension 
[-Werror,-Wvla-cxx-extension]
824 | Float32 subVolumes[control->controlCount];
| ^~~~~~~~~~~~~~~~~~~~~
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:824:24:
 note: read of non-constexpr variable 'control' is not allowed in a constant 
expression
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:818:18:
 note: declared here
818 | PortControl *control = (PortControl *)controlIDV;
| ^
7 errors generated.
make[3]: *** 
[git/jdk/build/macosx-aarch64-server-release/support/native/java.desktop/libjsound/PLATFORM_API_MacOSX_Ports.o]
 Error 1
make[3]: *** Waiting for unfinished jobs....
make[2]: *** [java.desktop-libs] Error 2
make[2]: *** Waiting for unfinished jobs....

ERROR: Build failed for target 'default (exploded-image)' in configuration 
'macosx-aarch64-server-release' (exit code 2)
Stopping javac server

=== Output from failing command(s) repeated here ===
* For target support_native_java.desktop_libjsound_PLATFORM_API_MacOSX_Ports.o:
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:127:39:
 error: variable length arrays in C++ are a Clang extension 
[-Werror,-Wvla-cxx-extension]
127 | AudioDeviceID devices[count];
| ^~~~~
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:127:39:
 note: read of non-const variable 'count' is not allowed in a constant 
expression
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:126:21:
 note: declared here
126 | int count = size/sizeof(AudioDeviceID);
| ^
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:151:42:
 error: variable length arrays in C++ are a Clang extension 
[-Werror,-Wvla-cxx-extension]
151 | AudioObjectID controlIDs[count];
| ^~~~~
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:151:42:
 note: read of non-const variable 'count' is not allowed in a constant 
expression
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:150:21:
 note: declared here
150 | int count = size / sizeof(AudioObjectID);
| ^
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:483:38:
 error: variable length arrays in C++ are a Clang extension 
[-Werror,-Wvla-cxx-extension]
... (rest of output omitted)

* All command lines available in 
git/jdk/build/macosx-aarch64-server-release/make-support/failure-logs.
=== End of repeated output ===

No indication of failed target found.
HELP: Try searching the build log for '] Error'.
HELP: Run 'make doctor' to diagnose build problems.

make[1]: *** [main] Error 2
make: *** [default] Error 2
make
Building target 'default (exploded-image)' in configuration 
'macosx-aarch64-server-release'
Creating support/modules_libs/java.desktop/libjsound.dylib from 1 file(s)
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:152:42:
 error: variable length arrays in C++ are a Clang extension 
[-Werror,-Wvla-cxx-extension]
152 | AudioObjectID controlIDs[count];
| ^~~~~
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:152:42:
 note: read of non-const variable 'count' is not allowed in a constant 
expression
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:151:21:
 note: declared here
151 | int count = size / sizeof(AudioObjectID);
| ^
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:484:38:
 error: variable length arrays in C++ are a Clang extension 
[-Werror,-Wvla-cxx-extension]
484 | AudioObjectID controlIDs[mixer->deviceControlCount];
| ^~~~~~~~~~~~~~~~~~~~~~~~~
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:484:38:
 note: read of non-constexpr variable 'mixer' is not allowed in a constant 
expression
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:459:16:
 note: declared here
459 | PortMixer *mixer = (PortMixer *)id;
| ^
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:528:34:
 error: variable length arrays in C++ are a Clang extension 
[-Werror,-Wvla-cxx-extension]
528 | AudioControl* volumeControls[totalChannels+1]; // 0 - for master channel
| ^~~~~~~~~~~~~~~
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:528:34:
 note: read of non-const variable 'totalChannels' is not allowed in a constant 
expression
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:525:9:
 note: declared here
525 | int totalChannels = GetChannelCount(mixer->deviceID, port->scope == 
kAudioDevicePropertyScopeOutput ? 1 : 0);
| ^
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:530:32:
 error: variable length arrays in C++ are a Clang extension 
[-Werror,-Wvla-cxx-extension]
530 | AudioControl* muteControls[totalChannels+1]; // 0 - for master channel
| ^~~~~~~~~~~~~~~
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:530:32:
 note: read of non-const variable 'totalChannels' is not allowed in a constant 
expression
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:525:9:
 note: declared here
525 | int totalChannels = GetChannelCount(mixer->deviceID, port->scope == 
kAudioDevicePropertyScopeOutput ? 1 : 0);
| ^
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:776:24:
 error: variable length arrays in C++ are a Clang extension 
[-Werror,-Wvla-cxx-extension]
776 | Float32 subVolumes[control->controlCount];
| ^~~~~~~~~~~~~~~~~~~~~
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:776:24:
 note: read of non-constexpr variable 'control' is not allowed in a constant 
expression
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:773:18:
 note: declared here
773 | PortControl *control = (PortControl *)controlIDV;
| ^
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:825:24:
 error: variable length arrays in C++ are a Clang extension 
[-Werror,-Wvla-cxx-extension]
825 | Float32 subVolumes[control->controlCount];
| ^~~~~~~~~~~~~~~~~~~~~
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:825:24:
 note: read of non-constexpr variable 'control' is not allowed in a constant 
expression
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:819:18:
 note: declared here
819 | PortControl *control = (PortControl *)controlIDV;
| ^
6 errors generated.
make[3]: *** 
[git/jdk/build/macosx-aarch64-server-release/support/native/java.desktop/libjsound/PLATFORM_API_MacOSX_Ports.o]
 Error 1
make[3]: *** Waiting for unfinished jobs....
ld: warning: reducing alignment of section __DATA,__common from 0x8000 to 
0x4000 because it exceeds segment maximum alignment
make[2]: *** [java.desktop-libs] Error 2

ERROR: Build failed for target 'default (exploded-image)' in configuration 
'macosx-aarch64-server-release' (exit code 2)

=== Output from failing command(s) repeated here ===
* For target support_native_java.desktop_libjsound_PLATFORM_API_MacOSX_Ports.o:
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:152:42:
 error: variable length arrays in C++ are a Clang extension 
[-Werror,-Wvla-cxx-extension]
152 | AudioObjectID controlIDs[count];
| ^~~~~
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:152:42:
 note: read of non-const variable 'count' is not allowed in a constant 
expression
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:151:21:
 note: declared here
151 | int count = size / sizeof(AudioObjectID);
| ^
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:484:38:
 error: variable length arrays in C++ are a Clang extension 
[-Werror,-Wvla-cxx-extension]
484 | AudioObjectID controlIDs[mixer->deviceControlCount];
| ^~~~~~~~~~~~~~~~~~~~~~~~~
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:484:38:
 note: read of non-constexpr variable 'mixer' is not allowed in a constant 
expression
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:459:16:
 note: declared here
459 | PortMixer *mixer = (PortMixer *)id;
| ^
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:528:34:
 error: variable length arrays in C++ are a Clang extension 
[-Werror,-Wvla-cxx-extension]
... (rest of output omitted)

* All command lines available in 
git/jdk/build/macosx-aarch64-server-release/make-support/failure-logs.
=== End of repeated output ===

No indication of failed target found.
HELP: Try searching the build log for '] Error'.
HELP: Run 'make doctor' to diagnose build problems.

make[1]: *** [main] Error 2
make: *** [default] Error 2
make
Building target 'default (exploded-image)' in configuration 
'macosx-aarch64-server-release'
Creating support/modules_libs/java.desktop/libjsound.dylib from 1 file(s)
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:154:87:
 error: use of undeclared identifier 'controlIDs'
154 | kAudioObjectPropertyOwnedObjects, count * sizeof(AudioObjectID), 
&controlIDs, 1);
| ^
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:160:74:
 error: use of undeclared identifier 'controlIDs'
160 | if (ctrl->audioControls[i]->controlID == controlIDs[j]) {
| ^
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:485:38:
 error: variable length arrays in C++ are a Clang extension 
[-Werror,-Wvla-cxx-extension]
485 | AudioObjectID controlIDs[mixer->deviceControlCount];
| ^~~~~~~~~~~~~~~~~~~~~~~~~
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:485:38:
 note: read of non-constexpr variable 'mixer' is not allowed in a constant 
expression
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:460:16:
 note: declared here
460 | PortMixer *mixer = (PortMixer *)id;
| ^
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:529:34:
 error: variable length arrays in C++ are a Clang extension 
[-Werror,-Wvla-cxx-extension]
529 | AudioControl* volumeControls[totalChannels+1]; // 0 - for master channel
| ^~~~~~~~~~~~~~~
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:529:34:
 note: read of non-const variable 'totalChannels' is not allowed in a constant 
expression
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:526:9:
 note: declared here
526 | int totalChannels = GetChannelCount(mixer->deviceID, port->scope == 
kAudioDevicePropertyScopeOutput ? 1 : 0);
| ^
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:531:32:
 error: variable length arrays in C++ are a Clang extension 
[-Werror,-Wvla-cxx-extension]
531 | AudioControl* muteControls[totalChannels+1]; // 0 - for master channel
| ^~~~~~~~~~~~~~~
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:531:32:
 note: read of non-const variable 'totalChannels' is not allowed in a constant 
expression
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:526:9:
 note: declared here
526 | int totalChannels = GetChannelCount(mixer->deviceID, port->scope == 
kAudioDevicePropertyScopeOutput ? 1 : 0);
| ^
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:777:24:
 error: variable length arrays in C++ are a Clang extension 
[-Werror,-Wvla-cxx-extension]
777 | Float32 subVolumes[control->controlCount];
| ^~~~~~~~~~~~~~~~~~~~~
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:777:24:
 note: read of non-constexpr variable 'control' is not allowed in a constant 
expression
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:774:18:
 note: declared here
774 | PortControl *control = (PortControl *)controlIDV;
| ^
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:826:24:
 error: variable length arrays in C++ are a Clang extension 
[-Werror,-Wvla-cxx-extension]
826 | Float32 subVolumes[control->controlCount];
| ^~~~~~~~~~~~~~~~~~~~~
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:826:24:
 note: read of non-constexpr variable 'control' is not allowed in a constant 
expression
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:820:18:
 note: declared here
820 | PortControl *control = (PortControl *)controlIDV;
| ^
7 errors generated.
make[3]: *** 
[git/jdk/build/macosx-aarch64-server-release/support/native/java.desktop/libjsound/PLATFORM_API_MacOSX_Ports.o]
 Error 1
make[3]: *** Waiting for unfinished jobs....
make[2]: *** [java.desktop-libs] Error 2

ERROR: Build failed for target 'default (exploded-image)' in configuration 
'macosx-aarch64-server-release' (exit code 2)

=== Output from failing command(s) repeated here ===
* For target support_native_java.desktop_libjsound_PLATFORM_API_MacOSX_Ports.o:
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:154:87:
 error: use of undeclared identifier 'controlIDs'
154 | kAudioObjectPropertyOwnedObjects, count * sizeof(AudioObjectID), 
&controlIDs, 1);
| ^
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:160:74:
 error: use of undeclared identifier 'controlIDs'
160 | if (ctrl->audioControls[i]->controlID == controlIDs[j]) {
| ^
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:485:38:
 error: variable length arrays in C++ are a Clang extension 
[-Werror,-Wvla-cxx-extension]
485 | AudioObjectID controlIDs[mixer->deviceControlCount];
| ^~~~~~~~~~~~~~~~~~~~~~~~~
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:485:38:
 note: read of non-constexpr variable 'mixer' is not allowed in a constant 
expression
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:460:16:
 note: declared here
460 | PortMixer *mixer = (PortMixer *)id;
| ^
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:529:34:
 error: variable length arrays in C++ are a Clang extension 
[-Werror,-Wvla-cxx-extension]
529 | AudioControl* volumeControls[totalChannels+1]; // 0 - for master channel
... (rest of output omitted)

* All command lines available in 
git/jdk/build/macosx-aarch64-server-release/make-support/failure-logs.
=== End of repeated output ===

No indication of failed target found.
HELP: Try searching the build log for '] Error'.
HELP: Run 'make doctor' to diagnose build problems.

make[1]: *** [main] Error 2
make: *** [default] Error 2
git reset --hard
HEAD is now at 898d4798003 8355077: Compiler error at splashscreen_gif.c due to 
unterminated string initialization
make
Building target 'default (exploded-image)' in configuration 
'macosx-aarch64-server-release'
Creating support/modules_libs/java.desktop/libjsound.dylib from 1 file(s)
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:127:39:
 error: variable length arrays in C++ are a Clang extension 
[-Werror,-Wvla-cxx-extension]
127 | AudioDeviceID devices[count];
| ^~~~~
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:127:39:
 note: read of non-const variable 'count' is not allowed in a constant 
expression
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:126:21:
 note: declared here
126 | int count = size/sizeof(AudioDeviceID);
| ^
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:151:42:
 error: variable length arrays in C++ are a Clang extension 
[-Werror,-Wvla-cxx-extension]
151 | AudioObjectID controlIDs[count];
| ^~~~~
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:151:42:
 note: read of non-const variable 'count' is not allowed in a constant 
expression
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:150:21:
 note: declared here
150 | int count = size / sizeof(AudioObjectID);
| ^
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:483:38:
 error: variable length arrays in C++ are a Clang extension 
[-Werror,-Wvla-cxx-extension]
483 | AudioObjectID controlIDs[mixer->deviceControlCount];
| ^~~~~~~~~~~~~~~~~~~~~~~~~
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:483:38:
 note: read of non-constexpr variable 'mixer' is not allowed in a constant 
expression
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:458:16:
 note: declared here
458 | PortMixer *mixer = (PortMixer *)id;
| ^
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:527:34:
 error: variable length arrays in C++ are a Clang extension 
[-Werror,-Wvla-cxx-extension]
527 | AudioControl* volumeControls[totalChannels+1]; // 0 - for master channel
| ^~~~~~~~~~~~~~~
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:527:34:
 note: read of non-const variable 'totalChannels' is not allowed in a constant 
expression
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:524:9:
 note: declared here
524 | int totalChannels = GetChannelCount(mixer->deviceID, port->scope == 
kAudioDevicePropertyScopeOutput ? 1 : 0);
| ^
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:529:32:
 error: variable length arrays in C++ are a Clang extension 
[-Werror,-Wvla-cxx-extension]
529 | AudioControl* muteControls[totalChannels+1]; // 0 - for master channel
| ^~~~~~~~~~~~~~~
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:529:32:
 note: read of non-const variable 'totalChannels' is not allowed in a constant 
expression
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:524:9:
 note: declared here
524 | int totalChannels = GetChannelCount(mixer->deviceID, port->scope == 
kAudioDevicePropertyScopeOutput ? 1 : 0);
| ^
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:775:24:
 error: variable length arrays in C++ are a Clang extension 
[-Werror,-Wvla-cxx-extension]
775 | Float32 subVolumes[control->controlCount];
| ^~~~~~~~~~~~~~~~~~~~~
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:775:24:
 note: read of non-constexpr variable 'control' is not allowed in a constant 
expression
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:772:18:
 note: declared here
772 | PortControl *control = (PortControl *)controlIDV;
| ^
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:824:24:
 error: variable length arrays in C++ are a Clang extension 
[-Werror,-Wvla-cxx-extension]
824 | Float32 subVolumes[control->controlCount];
| ^~~~~~~~~~~~~~~~~~~~~
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:824:24:
 note: read of non-constexpr variable 'control' is not allowed in a constant 
expression
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:818:18:
 note: declared here
818 | PortControl *control = (PortControl *)controlIDV;
| ^
7 errors generated.
make[3]: *** 
[git/jdk/build/macosx-aarch64-server-release/support/native/java.desktop/libjsound/PLATFORM_API_MacOSX_Ports.o]
 Error 1
make[3]: *** Waiting for unfinished jobs....
make[2]: *** [java.desktop-libs] Error 2

ERROR: Build failed for target 'default (exploded-image)' in configuration 
'macosx-aarch64-server-release' (exit code 2)

=== Output from failing command(s) repeated here ===
* For target support_native_java.desktop_libjsound_PLATFORM_API_MacOSX_Ports.o:
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:127:39:
 error: variable length arrays in C++ are a Clang extension 
[-Werror,-Wvla-cxx-extension]
127 | AudioDeviceID devices[count];
| ^~~~~
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:127:39:
 note: read of non-const variable 'count' is not allowed in a constant 
expression
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:126:21:
 note: declared here
126 | int count = size/sizeof(AudioDeviceID);
| ^
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:151:42:
 error: variable length arrays in C++ are a Clang extension 
[-Werror,-Wvla-cxx-extension]
151 | AudioObjectID controlIDs[count];
| ^~~~~
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:151:42:
 note: read of non-const variable 'count' is not allowed in a constant 
expression
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:150:21:
 note: declared here
150 | int count = size / sizeof(AudioObjectID);
| ^
git/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_Ports.cpp:483:38:
 error: variable length arrays in C++ are a Clang extension 
[-Werror,-Wvla-cxx-extension]
... (rest of output omitted)

* All command lines available in 
git/jdk/build/macosx-aarch64-server-release/make-support/failure-logs.
=== End of repeated output ===

No indication of failed target found.
HELP: Try searching the build log for '] Error'.
HELP: Run 'make doctor' to diagnose build problems.

make[1]: *** [main] Error 2
make: *** [default] Error 2

Re: About compiling on macOS

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