opencv cmake errors

-- The C compiler identification is unknown
-- The CXX compiler identification is unknown
-- Check for working C compiler: .../oe/angstrom-dev/cross/armv7a/arm-angstrom-linux-gnueabi/bin/gcc
-- Check for working C compiler: .../oe/angstrom-dev/cross/armv7a/arm-angstrom-linux-gnueabi/bin/gcc -- broken
CMake Error at /usr/share/cmake-2.8/Modules/CMakeTestCCompiler.cmake:50 (MESSAGE):
  The C compiler
  ".../oe/angstrom-dev/cross/armv7a/arm-angstrom-linux-gnueabi/bin/gcc"
  is not able to compile a simple test program.

  It fails with the following output:

   Change Dir: [SD Card]/home/root/OpenCV-2.1.0/release/CMakeFiles/CMakeTmp



  Run Build Command:/usr/bin/make "cmTryCompileExec/fast"

  /usr/bin/make -f CMakeFiles/cmTryCompileExec.dir/build.make
  CMakeFiles/cmTryCompileExec.dir/build

  make[1]: Entering directory
  `[SD Card]/home/root/OpenCV-2.1.0/release/CMakeFiles/CMakeTmp'

  /usr/bin/cmake -E cmake_progress_report
 [SD Card]/home/root/OpenCV-2.1.0/release/CMakeFiles/CMakeTmp/CMakeFiles
  1

  Building C object CMakeFiles/cmTryCompileExec.dir/testCCompiler.c.o


  .../oe/angstrom-dev/cross/armv7a/arm-angstrom-linux-gnueabi/bin/gcc
  -o CMakeFiles/cmTryCompileExec.dir/testCCompiler.c.o -c
 [SD Card]/home/root/OpenCV-2.1.0/release/CMakeFiles/CMakeTmp/testCCompiler.c


  gcc: error trying to exec 'cc1': execvp: No such file or directory

  make[1]: Leaving directory
  `[SD Card]/home/root/OpenCV-2.1.0/release/CMakeFiles/CMakeTmp'

  make[1]: *** [CMakeFiles/cmTryCompileExec.dir/testCCompiler.c.o] Error 1

  make: *** [cmTryCompileExec/fast] Error 2





  CMake will not be able to correctly generate this project.
Call Stack (most recent call first):
  CMakeLists.txt:39 (project)


-- Configuring incomplete, errors occurred!