x11/kdelibs3 compile problems on Solaris

[Raymond Meyer <raymond.meyer%rambler.ru@localhost>]

Hi, I'm building x11/kdelibs3 with GCC-4.1.1 on Sparc Solaris. Could anyone who
knows C++ suggest how to fix the following error:

operations.cpp: In function 'bool KJS::isInf(double)':
operations.cpp:70: error: 'isinf' was not declared in this scope
operations.cpp: In function 'bool KJS::isPosInf(double)':
operations.cpp:83: error: 'isinf' was not declared in this scope
operations.cpp: In function 'bool KJS::isNegInf(double)':
operations.cpp:96: error: 'isinf' was not declared in this scope
gmake[3]: *** [operations.lo] Error 1
gmake[3]: Leaving directory 
`/opt/pkg.obj/x11/kdelibs3/work.e450/kdelibs-3.5.4/kjs'
gmake[2]: *** [all] Error 2
gmake[2]: Leaving directory 
`/opt/pkg.obj/x11/kdelibs3/work.e450/kdelibs-3.5.4/kjs'
gmake[1]: *** [all-recursive] Error 1
gmake[1]: Leaving directory `/opt/pkg.obj/x11/kdelibs3/work.e450/kdelibs-3.5.4'
gmake: *** [all] Error 2
*** Error code 2

Stop.
bmake: stopped in /opt/pkgsrc/x11/kdelibs3