Porting libgcj...

[scottb <scottb@netwinder.org>]

Hi, 

I'm trying to port libgcj to run on ArmLinux on a NetWinder.  I get the
following error when building:

c++ -DHAVE_CONFIG_H -I. -I../../../../libgcj-2.95/libjava -I./include
-Iinclude -I../../../../libgcj-2.95/libjava/include
-I../../../../libgcj-2.95/libjava/../boehm-gc 
-I./../boehm-gc -DSILENT=1 -DNO_SIGNALS=1 -DNO_DEBUGGING=1
-DJAVA_FINALIZATION=1 
-I../../../../libgcj-2.95/libjava/../compat-include 
-I../../../../libgcj-2.95/libjava/../zlib
-fno-rtti -fvtable-thunks -fpermissive -W -Wall -g -O2 -fvtable-thunks 
-D_GNU_SOURCE -msoft-float -c  -fPIC -DPIC
../../../../libgcj-2.95/libjava/java/lang/natDouble.cc 
-o java/lang/.libs/natDouble.lo
In file included from
../../../../libgcj-2.95/libjava/java/lang/natDouble.cc:30:
java/lang/Double.h:38: `nan' was not declared in this scope

java/lang/Double.h is the following machine generated code:

> // DO NOT EDIT THIS FILE - it is machine generated -*- c++ -*-
> 
> #ifndef __java_lang_Double__
> #define __java_lang_Double__
> 
> #pragma interface
> 
> #include <java/lang/Number.h>
> 
> class java::lang::Double : public java::lang::Number
> {
> private:
>   static jdouble doubleValueOf (java::lang::String *);
> public:
>   Double (jdouble);
>   Double (java::lang::String *);
>   java::lang::String *toString ();
>   jboolean equals (java::lang::Object *);
>   jint hashCode ();
>   jint intValue ();
>   jlong longValue ();
>   jfloat floatValue ();
>   jdouble doubleValue () { return value; }
>   jbyte byteValue ();
>   jshort shortValue ();
> public: // actually package-private
>   static java::lang::String *toString (jdouble, jboolean);
> public:
>   static java::lang::String *toString (jdouble);
>   static java::lang::Double *valueOf (java::lang::String *);
>   jboolean isNaN ();
>   static jboolean isNaN (jdouble);
>   jboolean isInfinite ();
>   static jboolean isInfinite (jdouble);
>   static jlong doubleToLongBits (jdouble);
>   static jdouble longBitsToDouble (jlong);
>   static const jdouble MIN_VALUE = 2.1219957909652723e-314;
>   static const jdouble MAX_VALUE = nan;
>   static const jdouble NEGATIVE_INFINITY;
>   static const jdouble POSITIVE_INFINITY;
>   static const jdouble NaN;
>   static java::lang::Class *TYPE;
> private:
>   jdouble value;
> };
> 
> #endif /* __java_lang_Double__ */

It seems that when generating this file, the value for MAX_VALUE is
interpreted as a NAN by printf..  I have been looking for the file
generation code but have been unable to find it.  Could someone point me
in the correct direction.

Scott