qglobal.h: error: floating-point equality and inequality comparisons are unreliable

 In file included from /home/qt/work/install/include/QtCore/qnamespace.h(43),
                  from /home/qt/work/install/include/QtCore/qobjectdefs.h(48),
                  from api/qscriptable.h(27):
 /home/qt/work/install/include/QtCore/qglobal.h(911): error #1572: floating-point equality and inequality comparisons are unreliable
       return d == 0.0;
                   ^
 
 In file included from /home/qt/work/install/include/QtCore/qnamespace.h(43),
                  from /home/qt/work/install/include/QtCore/qobjectdefs.h(48),
                  from api/qscriptable.h(27):
 /home/qt/work/install/include/QtCore/qglobal.h(916): error #1572: floating-point equality and inequality comparisons are unreliable
       return f == 0.0f;
                   ^
 
 In file included from /home/qt/work/install/include/QtCore/qchar.h(43),
                  from /home/qt/work/install/include/QtCore/qstring.h(48),
                  from api/qscriptclass.h(27):
 /home/qt/work/install/include/QtCore/qglobal.h(911): error #1572: floating-point equality and inequality comparisons are unreliable
       return d == 0.0;
                   ^
 
 In file included from /home/qt/work/install/include/QtCore/qchar.h(43),
                  from /home/qt/work/install/include/QtCore/qstring.h(48),
                  from api/qscriptclass.h(27):
 /home/qt/work/install/include/QtCore/qglobal.h(916): error #1572: floating-point equality and inequality comparisons are unreliable
       return f == 0.0f;
                   ^
 
 In file included from /home/qt/work/install/include/QtCore/qnamespace.h(43),
                  from /home/qt/work/install/include/QtCore/qobjectdefs.h(48),
                  from api/qscriptcontext.h(27):
 /home/qt/work/install/include/QtCore/qglobal.h(911): error #1572: floating-point equality and inequality comparisons are unreliable
       return d == 0.0;
                   ^
 
 In file included from /home/qt/work/install/include/QtCore/qnamespace.h(43),
                  from /home/qt/work/install/include/QtCore/qobjectdefs.h(48),
                  from api/qscriptcontext.h(27):
 /home/qt/work/install/include/QtCore/qglobal.h(916): error #1572: floating-point equality and inequality comparisons are unreliable
       return f == 0.0f;
                   ^
 
 In file included from /home/qt/work/install/include/QtCore/qchar.h(43),
                  from /home/qt/work/install/include/QtCore/qstring.h(48),
                  from api/qscriptclasspropertyiterator.h(27):
 /home/qt/work/install/include/QtCore/qglobal.h(911): error #1572: floating-point equality and inequality comparisons are unreliable
       return d == 0.0;
                   ^
 
 In file included from /home/qt/work/install/include/QtCore/qchar.h(43),
                  from /home/qt/work/install/include/QtCore/qstring.h(48),
                  from api/qscriptclasspropertyiterator.h(27):
 /home/qt/work/install/include/QtCore/qglobal.h(916): error #1572: floating-point equality and inequality comparisons are unreliable
       return f == 0.0f;
                   ^
 
 compilation aborted for api/qscriptable.h (code 2)
 make[2]: *** [Makefile:1069: obj/debug/header_qscriptable.o] Error 2
 make[2]: *** Waiting for unfinished jobs....
 compilation aborted for api/qscriptcontext.h (code 2)
 make[2]: *** [Makefile:1266: obj/debug/header_qscriptcontext.o] Error 2
 compilation aborted for api/qscriptclasspropertyiterator.h (code 2)
 make[2]: *** [Makefile:1203: obj/debug/header_qscriptclasspropertyiterator.o] Error 2
 compilation aborted for api/qscriptclass.h (code 2)
 make[2]: *** [Makefile:1140: obj/debug/header_qscriptclass.o] Error 2
 make[2]: Leaving directory '/home/qt/work/qt/qtscript/src/script'
 make[1]: *** [Makefile:48: sub-script-make_first-ordered] Error 2
 make[1]: Leaving directory '/home/qt/work/qt/qtscript/src'
 make: *** [Makefile:49: sub-src-make_first] Error 2
 Process finished with error: exit status 2
 Executing scheduled instruction 1 of 1 - Upload all core dumps if there are some
 Error reading from stdout/err: exit status 2