add support to MinGW (with bash ./build.sh)

[lsaavedr]

With this changes you can build all proyects in MinGW (with bash from git-scm).

You need add ~/.bashrc file:

• in 64bit:

export PATH=$PATH:${GPRS_CSDTK42_PATH}/make64:${GPRS_CSDTK42_PATH}/mingw32/bin:${GPRS_CSDTK42_PATH}/cooltools:${GPRS_CSDTK42_PATH}/python27
export PATH=$PATH:${GPRS_CSDTK42_PATH}/mips-elf-4.4.2/bin:${GPRS_CSDTK42_PATH}/mips-rda-elf-7.1.0/bin:${GPRS_CSDTK42_PATH}/rv32-elf-5.4.1/bin
export LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:${GPRS_CSDTK42_PATH}/cooltools/lib:${GPRS_CSDTK42_PATH}/mingw32/lib

• in 32bit (not tested):

export PATH=$PATH:${GPRS_CSDTK42_PATH}/make:${GPRS_CSDTK42_PATH}/mingw32/bin:${GPRS_CSDTK42_PATH}/cooltools:${GPRS_CSDTK42_PATH}/python27
export PATH=$PATH:${GPRS_CSDTK42_PATH}/mips-elf-4.4.2/bin:${GPRS_CSDTK42_PATH}/mips-rda-elf-7.1.0/bin:${GPRS_CSDTK42_PATH}/rv32-elf-5.4.1/bin
export LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:${GPRS_CSDTK42_PATH}/cooltools/lib:${GPRS_CSDTK42_PATH}/mingw32/lib

This ~/.bashrc file can be modifie or created in future versions of setup.sh from CSDK42 (for windows).

Then you can execute for example (in bash of git-scm):

$ ./build.sh demo gpio

I think that maintain only build.sh is simpler that maintain build.bat and build.sh...