[webkit-gtk] building webkit-gtk using gcc 4.7.2 : error: 'isnan' was not declared in this scope

[Richard PALO]

Hi, hope I'm on the correct list...

Since passing from 1.8.3 to 1.10.* I can't seem to get webkit-gtk to 
build.  I use pkgsrc on an illumos platform...

I get the following type of errors:

   GEN    DerivedSources/JavaScriptCore/LLIntDesiredOffsets.h
offlineasm: Parsing 
./Source/JavaScriptCore/llint/LowLevelInterpreter.asm and creating 
offset extractor DerivedSources/JavaScriptCore/LLIntDesiredOffsets.h.
offlineasm: Including file 
./Source/JavaScriptCore/llint/LowLevelInterpreter64.asm
offlineasm: Including file 
./Source/JavaScriptCore/llint/LowLevelInterpreter32_64.asm
offlineasm: offset extractor 
DerivedSources/JavaScriptCore/LLIntDesiredOffsets.h successfully generated.
   CXX 
Source/JavaScriptCore/llint/Programs_LLIntOffsetsExtractor-LLIntOffsetsExtractor.o
In file included from ./Source/JavaScriptCore/runtime/JSValue.h:33:0,
                  from 
./Source/JavaScriptCore/runtime/CachedTranscendentalFunction.h:29,
                  from ./Source/JavaScriptCore/runtime/JSGlobalData.h:32,
                  from ./Source/JavaScriptCore/interpreter/CallFrame.h:27,
                  from ./Source/JavaScriptCore/runtime/ArgList.h:25,
                  from ./Source/JavaScriptCore/runtime/JSObject.h:26,
                  from ./Source/JavaScriptCore/runtime/JSArray.h:24,
                  from ./Source/JavaScriptCore/bytecode/ArrayProfile.h:29,
                  from 
Source/JavaScriptCore/llint/LLIntOffsetsExtractor.cpp:28:
./Source/WTF/wtf/MathExtras.h: In function 'void doubleToInteger(double, 
long long unsigned int&)':
./Source/WTF/wtf/MathExtras.h:349:16: error: 'isnan' was not declared in 
this scope
./Source/WTF/wtf/MathExtras.h:349:16: note: suggested alternative:
In file included from ./Source/WTF/wtf/MathExtras.h:30:0,
                  from ./Source/JavaScriptCore/runtime/JSValue.h:33,
                  from 
./Source/JavaScriptCore/runtime/CachedTranscendentalFunction.h:29,
                  from ./Source/JavaScriptCore/runtime/JSGlobalData.h:32,
                  from ./Source/JavaScriptCore/interpreter/CallFrame.h:27,
                  from ./Source/JavaScriptCore/runtime/ArgList.h:25,
                  from ./Source/JavaScriptCore/runtime/JSObject.h:26,
                  from ./Source/JavaScriptCore/runtime/JSArray.h:24,
                  from ./Source/JavaScriptCore/bytecode/ArrayProfile.h:29,
                  from 
Source/JavaScriptCore/llint/LLIntOffsetsExtractor.cpp:28:
/opt/pkg/gcc47/include/c++/cmath:839:5: note:   'std::isnan'
gmake: *** 
[Source/JavaScriptCore/llint/Programs_LLIntOffsetsExtractor-LLIntOffsetsExtractor.o] 
Error 1
*** Error code 2

Stop.
bmake: stopped in /home/richard/src/pkgsrc/www/webkit-gtk3
*** Error code 1

Stop.
bmake: stopped in /home/richard/src/pkgsrc/www/webkit-gtk3


I found (at least in 1.10.1) this problem in the Source/JavaScriptCore, 
WTF and WebCore directories...  even after patching I get


   CXX    Source/JavaScriptCore/Programs_jsc_1-jsc.o
In file included from Source/JavaScriptCore/jsc.cpp:32:0:
Source/JavaScriptCore/JSCTypedArrayStubs.h: In member function 'void 
JSC::JSInt8Array::finishCreation(JSC::JSGlobalData&)':
Source/JavaScriptCore/JSCTypedArrayStubs.h:194:1: error: invalid 
conversion from 'signed char*' to 'int8_t* {aka char*}' [-fpermissive]
gmake[1]: *** [Source/JavaScriptCore/Programs_jsc_1-jsc.o] Error 1
gmake[1]: Leaving directory 
`/tmp/pkgsrc/www/webkit-gtk/work/webkitgtk-1.10.1'
gmake: *** [all] Error 2
*** Error code 2

Is there a solution to building on this platform with gcc 4.7.2?

by the way, the pkgsrc gnats bug report is 
http://gnats.netbsd.org/cgi-bin/query-pr-single.pl?number=47354

Thanks in advance