gmake not finding iostream using angstrom sdk

"/usr/bin/gmake" -f nbproject/Makefile-Debug.mk QMAKE= SUBPROJECTS= .build-conf
gmake[1]: Entering directory `/home/cfo215/NetBeansProjects/Welcome_1'
"/usr/bin/gmake"  -f nbproject/Makefile-Debug.mk dist/Debug/cortexa8hf-vfp-neon-angstrom-linux-gnueabi-Linux-x86/welcome_1
gmake[2]: Entering directory `/home/cfo215/NetBeansProjects/Welcome_1'
mkdir -p build/Debug/cortexa8hf-vfp-neon-angstrom-linux-gnueabi-Linux-x86
rm -f build/Debug/cortexa8hf-vfp-neon-angstrom-linux-gnueabi-Linux-x86/welcome.o.d
arm-angstrom-linux-gnueabi-g++    -c -g -MMD -MP -MF build/Debug/cortexa8hf-vfp-neon-angstrom-linux-gnueabi-Linux-x86/welcome.o.d -o build/Debug/cortexa8hf-vfp-neon-angstrom-linux-gnueabi-Linux-x86/welcome.o welcome.cc
welcome.cc:31:20: fatal error: iostream: No such file or directory
compilation terminated.
gmake[2]: *** [build/Debug/cortexa8hf-vfp-neon-angstrom-linux-gnueabi-Linux-x86/welcome.o] Error 1
gmake[2]: Leaving directory `/home/cfo215/NetBeansProjects/Welcome_1'
gmake[1]: *** [.build-conf] Error 2
gmake[1]: Leaving directory `/home/cfo215/NetBeansProjects/Welcome_1'
gmake: *** [.build-impl] Error 2


BUILD FAILED (exit value 2, total time: 143ms)