installation problem

[papaprime]

make -C GIZA++-v2
make[1]: Entering directory '/mnt/c/giza/giza-pp/GIZA++-v2'
mkdir optimized/
g++ -Wall -Wno-parentheses -O3 -funroll-loops -DNDEBUG -DWORDINDEX_WITH_4_BYTE -DBINARY_SEARCH_FOR_TTABLE -c Parameter.cpp -o optimized/Parameter.o
make[1]: g++: Permission denied
make[1]: *** [Makefile:92: optimized/Parameter.o] Error 127
make[1]: Leaving directory '/mnt/c/giza/giza-pp/GIZA++-v2'
make: *** [Makefile:7: gizapp] Error 2