[bug#40387] Acknowledgement ([PATCH] gnu: Set JAVA_HOME for all Java development kits.)

[Pierre Neidhardt]

I cannot test this patch unfortunately, build icedtea-8 fails for me
with


--8<---------------cut here---------------start------------->8---
INFO: ZIP_DEBUGINFO_FILES=1
echo Generating precompiled header precompiled.hpp.gch
Generating precompiled header precompiled.hpp.gch
mkdir -p .
/gnu/store/x3jx25cd3q363mr7nbgzrhrv1vza6cf7-gcc-7.4.0/bin/g++ -DLINUX 
-D_GNU_SOURCE -DAMD64 -DPRODUCT -I. 
-I/tmp/guix-build-icedtea-3.7.0.drv-0/icedtea-2.6.13/openjdk/hotspot/src/share/vm/prims
 
-I/tmp/guix-build-icedtea-3.7.0.drv-0/icedtea-2.6.13/openjdk/hotspot/src/share/vm
 
-I/tmp/guix-build-icedtea-3.7.0.drv-0/icedtea-2.6.13/openjdk/hotspot/src/share/vm/precompiled
 
-I/tmp/guix-build-icedtea-3.7.0.drv-0/icedtea-2.6.13/openjdk/hotspot/src/cpu/x86/vm
 
-I/tmp/guix-build-icedtea-3.7.0.drv-0/icedtea-2.6.13/openjdk/hotspot/src/os_cpu/linux_x86/vm
 
-I/tmp/guix-build-icedtea-3.7.0.drv-0/icedtea-2.6.13/openjdk/hotspot/src/os/linux/vm
 
-I/tmp/guix-build-icedtea-3.7.0.drv-0/icedtea-2.6.13/openjdk/hotspot/src/os/posix/vm
 -I../generated -DHOTSPOT_RELEASE_VERSION="\"25.161-b12\"" 
-DHOTSPOT_BUILD_TARGET="\"product\"" -DHOTSPOT_BUILD_USER="\"nixbld\"" 
-DHOTSPOT_LIB_ARCH=\"amd64\" -DHOTSPOT_VM_DISTRO="\"OpenJDK\"" 
-DDERIVATIVE_ID="\"IcedTea 3.7.0\"" -DDISTRIBUTION_ID="\"Custom build\""  
-DTARGET_OS_FAMILY_linux -DTARGET_ARCH_x86 -DTARGET_ARCH_MODEL_x86_64 
-DTARGET_OS_ARCH_linux_x86 -DTARGET_OS_ARCH_MODEL_linux_x86_64 
-DTARGET_COMPILER_gcc -DCOMPILER2 -DCOMPILER1 -fPIC -fno-rtti -fno-exceptions 
-D_REENTRANT -fcheck-new -fvisibility=hidden -m64  -pipe -fno-strict-aliasing  
-g -fno-omit-frame-pointer -O3  -DVM_LITTLE_ENDIAN -D_LP64=1  -Wpointer-arith 
-Wsign-compare -Wundef -Wunused-function -Wunused-value   -g -O2 
-fno-delete-null-pointer-checks -fno-lifetime-dse -std=gnu++98 -c -MMD -MP -MF 
../generated/dependencies/precompiled.hpp.gch.d -fpch-deps -x c++-header 
/tmp/guix-build-icedtea-3.7.0.drv-0/icedtea-2.6.13/openjdk/hotspot/src/share/vm/precompiled/precompiled.hpp
 -o precompiled.hpp.gch 
In file included from 
/tmp/guix-build-icedtea-3.7.0.drv-0/icedtea-2.6.13/openjdk/hotspot/src/share/vm/precompiled/precompiled.hpp:315:0:
/tmp/guix-build-icedtea-3.7.0.drv-0/icedtea-2.6.13/openjdk/hotspot/src/share/vm/gc_implementation/parallelScavenge/parallelScavengeHeap.hpp:250:2:
 fatal error: can't write PCH file: No space left on device
 };
  ^
compilation terminated.
--8<---------------cut here---------------end--------------->8---

Even though I do have enough space and memory left.
Unsure what's going on.

-- 
Pierre Neidhardt
https://ambrevar.xyz/

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