The recent changes to make in 5.2-CURRENT to use MAKEFLAGS and also the changes to gcc 3.4 break the hotspot build.

# Start of HotSpot build
(cd /usr/ports/java/jdk13/work/hotspot1.3.1/build/linux ;   /usr/bin/env ALT_BOOTDIR="/usr/local/jdk1.3.1"  ALT_MOTIF_DIR="/usr/X11R6"  OPENWINHOME="/usr/X11R6"  SYS_CFLAGS="-O -pipe "  CLASSPATH=""  LD_LIBRARY_PATH=""  JAVA_COMPILER=""  MAKEFLAGS="" SHELL=/bin/sh PORTOBJFORMAT=elf    PREFIX=/usr/local LOCALBASE=/usr/local X11BASE=/usr/X11R6 MOTIFLIB="-L/usr/X11R6/lib -lXm -lXp" LIBDIR="/usr/lib" CFLAGS="-O -pipe " CXXFLAGS="-O -pipe" MANPREFIX="/usr/local" BSD_INSTALL_PROGRAM="install  -s -o root -g wheel -m 555"  BSD_INSTALL_SCRIPT="install  -o root -g wheel -m 555"  BSD_INSTALL_DATA="install  -o root -g wheel -m 444"  BSD_INSTALL_MAN="install  -o root -g wheel -m 444" gmake -f Makefile compiler1 compiler2)
sh /usr/ports/java/jdk13/work/hotspot1.3.1/build/linux/../../build/linux/makefiles/buildATree.sh compiler1 /usr/ports/java/jdk13/work/hotspot1.3.1/build/linux/../.. linux i486
(cd linux_i486_compiler1/jvmg; gmake)
gmake[1]: Entering directory `/usr/ports/java/jdk13/work/hotspot1.3.1/build/linux/linux_i486_compiler1/jvmg'
Removing ../generated/includeDB.current to force regeneration.
cd ../generated;   cat /usr/ports/java/jdk13/work/hotspot1.3.1/build/linux/../../src/share/vm/includeDB_core   /usr/ports/java/jdk13/work/hotspot1.3.1/build/linux/../../src/share/vm/includeDB_ci /usr/ports/java/jdk13/work/hotspot1.3.1/build/linux/../../src/share/vm/includeDB_compiler1 > includeDB
cd ../generated;  if [ ! -r incls ] ; then \
mkdir incls ; \
fi
cd ../generated;   /usr/local/jdk1.3.1/bin/java -classpath . MakeDeps diffs UnixPlatform platform.current includeDB.current /usr/ports/java/jdk13/work/hotspot1.3.1/build/linux/../../build/linux/platform_i486 includeDB -firstFile functionAtStart.cpp -lastFile functionAtEnd.cpp
Old database:
	computing closures

New database:
	reading database: includeDB
	computing closures

Deltas:
	updating output files

The order of .c or .s has changed, or the grand include file has changed.
	writing individual include files

	creating functionAtStart.cpp
	creating accessFlags.cpp
	creating ageTable.cpp
	creating allocation.cpp
	creating aprofiler.cpp
	creating arguments.cpp
	creating arrayKlass.cpp
	creating arrayKlassKlass.cpp
	creating arrayOop.cpp
	creating assembler.cpp
	creating assembler_i486.cpp
	creating assembler_linux_i486.cpp
	creating bitMap.cpp
	creating bytecode.cpp
	creating bytecodeHistogram.cpp
	creating bytecodeStream.cpp
	creating bytecodeTracer.cpp
	creating bytecodes.cpp
	creating bytecodes_i486.cpp
	creating carRememberedSet.cpp
	creating cartable.cpp
	creating classFileParser.cpp
	creating classFileStream.cpp
	creating classLoader.cpp
	creating codeBuffer.cpp
	creating compressedStream.cpp
	creating constantPoolKlass.cpp
	creating constantPoolOop.cpp
	creating constantTag.cpp
	creating cpCacheKlass.cpp
	creating cpCacheOop.cpp
	creating debug.cpp
	creating debug_i486.cpp
	creating disassembler_i486.cpp
	creating events.cpp
	creating evmCompat.cpp
	creating exceptions.cpp
	creating extendedPC_i486.cpp
	creating fieldDescriptor.cpp
	creating fieldType.cpp
	creating fprofiler.cpp
	creating frame.cpp
	creating frame_i486.cpp
	creating gcLocker.cpp
	creating generateOopMap.cpp
	creating generation.cpp
	creating getThread_linux_i486.cpp
	creating globalDefinitions.cpp
	creating globals.cpp
	creating growableArray.cpp
	creating handles.cpp
	creating heap.cpp
	creating histogram.cpp
	creating hpi.cpp
	creating hpi_linux.cpp
	creating icache.cpp
	creating icache_i486.cpp
	creating init.cpp
	creating instanceKlass.cpp
	creating instanceKlassKlass.cpp
	creating instanceOop.cpp
	creating instanceRefKlass.cpp
	creating interfaceSupport.cpp
	creating interp_masm_i486.cpp
	creating interpreterRT_i486.cpp
	creating interpreterRuntime.cpp
	creating interpreter_i486.cpp
	creating interpreter_abs.cpp
	creating iterator.cpp
	creating java.cpp
	creating javaCalls.cpp
	creating javaClasses.cpp
	creating jni.cpp
	creating jniHandles.cpp
	creating jvm.cpp
	creating jvm_linux.cpp
	creating jvmdiEvent.cpp
	creating jvmdi.cpp
	creating jvmdi_info.cpp
	creating jvmdi_info2.cpp
	creating jvmpi.cpp
	creating klass.cpp
	creating klassKlass.cpp
	creating klassOop.cpp
	creating klassVtable.cpp
	creating linkResolver.cpp
	creating markOop.cpp
	creating markSweep.cpp
	creating memprofiler.cpp
	creating methodIterator.cpp
	creating methodKlass.cpp
	creating methodOop.cpp
	creating methodPrinter.cpp
	creating monitorChunk.cpp
	creating mutex.cpp
	creating mutexLocker.cpp
	creating mutex_linux.cpp
	creating nativeInst_i486.cpp
	creating nativeLookup.cpp
	creating objArrayKlass.cpp
	creating objArrayKlassKlass.cpp
	creating objArrayOop.cpp
	creating objectMonitor_linux.cpp
	creating oop.cpp
	creating oopFactory.cpp
	creating oopMapCache.cpp
	creating oopRecorder.cpp
	creating os.cpp
	creating osThread.cpp
	creating osThread_linux.cpp
	creating os_linux.cpp
	creating os_linux_i486.cpp
	creating ostream.cpp
	creating preserveException.cpp
	creating privilegedStack.cpp
	creating rawMonitor.cpp
	creating referencePolicy.cpp
	creating reflection.cpp
	creating reflectionUtils.cpp
	creating relocInfo.cpp
	creating relocInfo_i486.cpp
	creating relocator.cpp
	creating rememberedSet.cpp
	creating resourceArea.cpp
	creating rewriter.cpp
	creating safepoint.cpp
	creating safepoint_linux.cpp
	creating scavenge.cpp
	creating sharedRuntime.cpp
	creating signature.cpp
	creating space.cpp
	creating stackValue.cpp
	creating stubCodeGenerator.cpp
	creating stubGenerator_i486.cpp
	creating stubRoutines.cpp
	creating stubRoutines_i486.cpp
	creating stubs.cpp
	creating symbolKlass.cpp
	creating symbolOop.cpp
	creating symbolTable.cpp
	creating synchronizer.cpp
	creating systemDictionary.cpp
	creating task.cpp
	creating templateTable.cpp
	creating templateTable_i486.cpp
	creating thread.cpp
	creating threadLS_linux_i486.cpp
	creating threadLocalStorage.cpp
	creating threadLocalEden.cpp
	creating timer.cpp
	creating train.cpp
	creating typeArrayKlass.cpp
	creating typeArrayKlassKlass.cpp
	creating typeArrayOop.cpp
	creating universe.cpp
	creating utf8.cpp
	creating verifier.cpp
	creating vframe.cpp
	creating virtualspace.cpp
	creating vmNullPointerExc.cpp
	creating vmStructs.cpp
	creating vmSymbols.cpp
	creating vmThread.cpp
	creating vm_operations.cpp
	creating vm_version_i486.cpp
	creating vm_version_abs.cpp
	creating vtune_linux.cpp
	creating speclock.cpp
	creating ciArray.cpp
	creating ciArrayKlass.cpp
	creating ciConstant.cpp
	creating ciConstantPoolCache.cpp
	creating ciEnv.cpp
	creating ciExceptionHandler.cpp
	creating ciField.cpp
	creating ciFieldLayout.cpp
	creating ciFlags.cpp
	creating ciInstance.cpp
	creating ciInstanceKlass.cpp
	creating ciInstanceKlassKlass.cpp
	creating ciKlass.cpp
	creating ciKlassKlass.cpp
	creating ciMethod.cpp
	creating ciMethodKlass.cpp
	creating ciNullObject.cpp
	creating ciObjArrayKlass.cpp
	creating ciObjArrayKlassKlass.cpp
	creating ciObject.cpp
	creating ciObjectFactory.cpp
	creating ciOopMap.cpp
	creating ciScope.cpp
	creating ciSignature.cpp
	creating ciStreams.cpp
	creating ciSymbol.cpp
	creating ciSymbolKlass.cpp
	creating ciTypeArrayKlass.cpp
	creating ciTypeArrayKlassKlass.cpp
	creating ciUtilities.cpp
	creating compileBroker.cpp
	creating debugInfoRec.cpp
	creating onStackReplacement.cpp
	creating recompile.cpp
	creating callProfile.cpp
	creating cha.cpp
	creating codeBlob.cpp
	creating codeCache.cpp
	creating compilationScope.cpp
	creating compiledICHolderKlass.cpp
	creating compiledICHolderOop.cpp
	creating compilerOracle.cpp
	creating debugInfo.cpp
	creating icBuffer.cpp
	creating icBuffer_i486.cpp
	creating invocationCounter.cpp
	creating pcDesc.cpp
	creating recompilationMonitor.cpp
	creating recompiler.cpp
	creating rframe.cpp
	creating threadCodeBuffer.cpp
	creating sweeper.cpp
	creating vframeArray.cpp
	creating vframe_hp.cpp
	creating c1_globals.cpp
	creating compiledIC.cpp
	creating deoptimization.cpp
	creating inlining.cpp
	creating location.cpp
	creating methodTracer.cpp
	creating nmethod.cpp
	creating oopMap.cpp
	creating scope.cpp
	creating scopeDesc.cpp
	creating scopeIterator.cpp
	creating shared.cpp
	creating shared_i486.cpp
	creating vtableStubs.cpp
	creating vtableStubs_i486.cpp
	creating c1_Canonicalizer.cpp
	creating c1_Compiler.cpp
	creating c1_Miscellaneous.cpp
	creating c1_Instruction.cpp
	creating c1_InstructionPrinter.cpp
	creating c1_IR.cpp
	creating c1_GraphBuilder.cpp
	creating c1_Inliner.cpp
	creating c1_ValueStack.cpp
	creating c1_FrameMap_i486.cpp
	creating c1_FrameMap.cpp
	creating c1_CodeGenerator.cpp
	creating c1_CodeGenerator_i486.cpp
	creating c1_CodeEmitter_i486.cpp
	creating c1_CodeEmitter.cpp
	creating c1_Items.cpp
	creating c1_Items_i486.cpp
	creating c1_Optimizer.cpp
	creating c1_MacroAssembler_i486.cpp
	creating c1_RegAlloc.cpp
	creating c1_RegAlloc_i486.cpp
	creating c1_RInfo.cpp
	creating c1_RInfo_i486.cpp
	creating c1_Runtime1.cpp
	creating c1_Runtime1_i486.cpp
	creating c1_ValueMap.cpp
	creating c1_ValueType.cpp
	creating c1_CodeStubs_i486.cpp
	creating ciBytecodeStream.cpp
	creating c1_Loops.cpp
	creating c1_CacheLocals_i486.cpp
	creating c1_ScanBlocks.cpp
	creating c1_Compilation.cpp
	creating functionAtEnd.cpp
	writing grand include file

	writing dependencies file

cd ../generated;   cp includeDB    includeDB.current
cd ../generated;   cp /usr/ports/java/jdk13/work/hotspot1.3.1/build/linux/../../build/linux/platform_i486 platform.current
gmake[2]: Entering directory `/usr/ports/java/jdk13/work/hotspot1.3.1/build/linux/linux_i486_compiler1/jvmg'
echo '#define debug launcher_debug'          >>launcher.c+
echo '#include "java.c"'                     >>launcher.c+
echo '#include "java_md.c"'                  >>launcher.c+
mv launcher.c+ launcher.c
gcc -g -c -o launcher.o launcher.c -I/usr/ports/java/jdk13/work/hotspot1.3.1/build/linux/../../src/os/linux/launcher -I/usr/ports/java/jdk13/work/hotspot1.3.1/build/linux/../../src/share/vm/prims -DLINUX -D_GNU_SOURCE -DIA32 -D_USE_PTHREAD_SPECIFIC -pthread -D_THREAD_SAFE -DASSERT -DDEBUG -DFASTDEBUG -I../generated/adfiles -I/usr/ports/java/jdk13/work/hotspot1.3.1/build/linux/../../src/share/vm/asm -I/usr/ports/java/jdk13/work/hotspot1.3.1/build/linux/../../src/share/vm/c1 -I/usr/ports/java/jdk13/work/hotspot1.3.1/build/linux/../../src/share/vm/ci -I/usr/ports/java/jdk13/work/hotspot1.3.1/build/linux/../../src/share/vm/code -I/usr/ports/java/jdk13/work/hotspot1.3.1/build/linux/../../src/share/vm/compiler -I/usr/ports/java/jdk13/work/hotspot1.3.1/build/linux/../../src/share/vm/interpreter -I/usr/ports/java/jdk13/work/hotspot1.3.1/build/linux/../../src/share/vm/memory -I/usr/ports/java/jdk13/work/hotspot1.3.1/build/linux/../../src/share/vm/oops -I/usr/ports/java/jdk13/work/hot!
 spot1.3.1/build/linux/../../src/share/vm/prims -I/usr/ports/java/jdk13/work/hotspot1.3.1/build/linux/../../src/share/vm/runtime -I/usr/ports/java/jdk13/work/hotspot1.3.1/build/linux/../../src/share/vm/utilities -I/usr/ports/java/jdk13/work/hotspot1.3.1/build/linux/../../src/cpu/i486/vm -I/usr/ports/java/jdk13/work/hotspot1.3.1/build/linux/../../src/os/linux/vm -I/usr/ports/java/jdk13/work/hotspot1.3.1/build/linux/../../src/os_cpu/linux_i486/vm -I../generated -I/usr/src/lib/libc_r -I/usr/src/lib/libc/include 
Compiling /usr/ports/java/jdk13/work/hotspot1.3.1/build/linux/../../src/share/vm/runtime/functionAtStart.cpp
cc1plus: note: -fwritable-strings is deprecated; see documentation for details
cc1plus: note: -fwritable-strings is deprecated; see documentation for details
Compiling /usr/ports/java/jdk13/work/hotspot1.3.1/build/linux/../../src/share/vm/utilities/accessFlags.cpp
cc1plus: note: -fwritable-strings is deprecated; see documentation for details
cc1plus: note: -fwritable-strings is deprecated; see documentation for details
Compiling /usr/ports/java/jdk13/work/hotspot1.3.1/build/linux/../../src/share/vm/memory/ageTable.cpp
cc1plus: note: -fwritable-strings is deprecated; see documentation for details
cc1plus: note: -fwritable-strings is deprecated; see documentation for details
Compiling /usr/ports/java/jdk13/work/hotspot1.3.1/build/linux/../../src/share/vm/memory/allocation.cpp
cc1plus: note: -fwritable-strings is deprecated; see documentation for details
cc1plus: note: -fwritable-strings is deprecated; see documentation for details
In file included from ../generated/incls/_allocation.cpp.incl:109,
                 from /usr/ports/java/jdk13/work/hotspot1.3.1/build/linux/../../src/share/vm/memory/allocation.cpp:18:
/usr/ports/java/jdk13/work/hotspot1.3.1/build/linux/../../src/share/vm/runtime/mutex.hpp:58: error: `void Mutex::set_owner_implementation(Thread*)' is protected
/usr/ports/java/jdk13/work/hotspot1.3.1/build/linux/../../src/share/vm/runtime/thread.hpp:269: error: within this context
gmake[2]: *** [allocation.o] Error 1
gmake[2]: Leaving directory `/usr/ports/java/jdk13/work/hotspot1.3.1/build/linux/linux_i486_compiler1/jvmg'
gmake[1]: *** [the_vm] Error 2
gmake[1]: Leaving directory `/usr/ports/java/jdk13/work/hotspot1.3.1/build/linux/linux_i486_compiler1/jvmg'
gmake: *** [jvmg1] Error 2
*** Error code 2

Stop in /usr/ports/java/jdk13.

Fix: It _is_ dirty but makes hotspot to compile fine. I am not a programmer, sorry.
How-To-Repeat: 	Build with -DWITH_HOTSPOT