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Date:	Sat, 27 Mar 2010 11:23:15 -0400
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Subject:	how was debate on _GNU_SOURCE resolved? can't find pthread_getattr_np
From:	mike marchywka <marchywka AT gmail DOT com>
To:	cygwin <cygwin AT cygwin DOT com>
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I'm now getting this error and don't seem to be able to find
the getattr_np thing by grepping through includes,

../JavaScriptCore/runtime/Collector.cpp:683: error: `pthread_getattr_np' was not
 declared in this scope
../JavaScriptCore/runtime/Collector.cpp:685: error: `pthread_attr_getstack' was
not declared in this scope
make[1]: *** [obj/release/Collector.o] Error 1

with _GNU_SOURCE defined, ( presuming someone is including
pthread.h LOL) ,


g++ -c -pipe -Wreturn-type -fno-strict-aliasing -ffunction-sections -fdata-secti
ons -O2 -I/usr/include/freetype2 -Wall -W -D_REENTRANT -D_GNU_SOURCE -DQT_SHARED
 -DBUILDING_QT__=1 -DNDEBUG -DQT_NO_CAST_TO_ASCII -DQT_ASCII_CAST_WARNINGS -DQT3
_SUPPORT -DQT_MOC_COMPAT -DBUILD_WEBKIT -DENABLE_JAVASCRIPT_DEBUGGER=1 -DENABLE_
DATABASE=1 -DENABLE_EVENTSOURCE=1 -DENABLE_OFFLINE_WEB_APPLICATIONS=1 -DENABLE_D
OM_STORAGE=1 -DENABLE_ICONDATABASE=1 -DENABLE_CHANNEL_MESSAGING=1 -DENABLE_ORIEN
TATION_EVENTS=0 -DENABLE_SQLITE=1 -DENABLE_DASHBOARD_SUPPORT=0 -DENABLE_FILTERS=
0 -DENABLE_XPATH=1 -DENABLE_WCSS=0 -DENABLE_WML=0 -DENABLE_SHARED_WORKERS=1 -DEN
ABLE_WORKERS=1 -DENABLE_XHTMLMP=0 -DENABLE_DATAGRID=1 -DENABLE_SVG=1 -DENABLE_SV
G_FONTS=1 -DENABLE_SVG_FOREIGN_OBJECT=1 -DENABLE_SVG_ANIMATION=1 -DENABLE_SVG_AS
_IMAGE=1 -DENABLE_SVG_USE=1 -DENABLE_RUBY=1 -DENABLE_VIDEO=0 -DENABLE_DATALIST=1
 -DENABLE_NETSCAPE_PLUGIN_API=1 -DENABLE_WEB_SOCKETS=1 -DENABLE_XSLT=1 -DWTF_USE
_JAVASCRIPTCORE_BINDINGS=1 -DWTF_CHANGES=1 -DBUILDING_QT__ -DBUILDING_JavaScript
Core -DBUILDING_WTF -DXP_UNIX -DSQLITE_CORE -DSQLITE_OMIT_LOAD_EXTENSION -DSQLIT
E_OMIT_COMPLETE -DQT_NO_DEBUG -DQT_XMLPATTERNS_LIB -DQT_GUI_LIB -DQT_NETWORK_LIB
 -DQT_CORE_LIB -I../../../../mkspecs/cygwin-g++ -I. -I../../../../include/QtCore
 -I../../../../include/QtNetwork -I../../../../include/QtGui -I../../../../inclu
de/QtXmlPatterns -I../../../../include -Ibridge/qt -Ipage/qt -Iplatform/graphics
/qt -Iplatform/network/qt -Iplatform/qt -I../WebKit/qt/WebCoreSupport -I. -Iacce
ssibility -Ibindings/js -Ibridge -Ibridge/c -Icss -Idom -Idom/default -Iediting
-Ihistory -Ihtml -Ihtml/canvas -Iinspector -Iloader -Iloader/appcache -Iloader/a
rchive -Iloader/icon -Inotifications -Ipage -Ipage/animation -Iplatform -Iplatfo
rm/animation -Iplatform/graphics -Iplatform/graphics/filters -Iplatform/graphics
/transforms -Iplatform/image-decoders -Iplatform/mock -Iplatform/network -Iplatf
orm/sql -Iplatform/text -Iplugins -Irendering -Irendering/style -Istorage -Isvg
-Isvg/animation -Isvg/graphics -Isvg/graphics/filters -Iwebsockets -Iwml -Iworke
rs -Ixml -Igenerated -I../JavaScriptCore -I../../webkit -I../JavaScriptCore/asse
mbler -I../JavaScriptCore/bytecode -I../JavaScriptCore/bytecompiler -I../JavaScr
iptCore/debugger -I../JavaScriptCore/interpreter -I../JavaScriptCore/jit -I../Ja
vaScriptCore/parser -I../JavaScriptCore/profiler -I../JavaScriptCore/runtime -I.
./JavaScriptCore/wrec -I../JavaScriptCore/wtf -I../JavaScriptCore/wtf/unicode -I
../JavaScriptCore/yarr -I../JavaScriptCore/API -I../JavaScriptCore/ForwardingHea
ders -Igenerated -I../WebKit/qt/Api -I../../../../include/QtWebKit -I.rcc/releas
e-shared -I../JavaScriptCore/pcre -I/cygdrive/c/cygwin/home/marchywka/wk/wkhtmlt
opdf.qt/src/3rdparty/webkit/WebKitBuild/Release/JavaScriptCore/tmp -I../../sqlit
e -I/usr/X11R6/include -I.moc/release-shared -o obj/release/Collector.o ../JavaS
criptCore/runtime/Collector.cpp
make[1]: Leaving directory `/cygdrive/c/cygwin/home/marchywka/wk/wkhtmltopdf.qt/
src/3rdparty/webkit/WebCore'

and, ok, unless flags are wrong shold beincluding pthread,

#if PLATFORM(SOLARIS)
#include <thread.h>
#else
#include <pthread.h>
#endif

#if HAVE(PTHREAD_NP_H)
#include <pthread_np.h>
#endif


Apparently there was some debate about this circa 2006 with cgf,

http://www.cygwin.com/ml/cygwin/2006-01/msg00583.html


Grepping through the pthread header however I don't see any indication
the things the compiler is complaining about exist. It seems however
the _GNU_SOURCE flag comes up in many headers in the include dir.


thanks.

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