Solving the Error 127 from Make when cross compiling to raspberry pi

I was following the excellent tutorial from Alessio on cross compiling to raspberry pi from Windows 7. Then, I hit the the dreaded ‘Error 127’ from make. Now, after hours of searching I couldn’t find how to solve this. Then, Bryan has mentioned that you need to install the 32 bit cygwin version and that would work, and works it does.

If you already installed cygwin 64 bit version like me and wondering how to install it,here are some steps:

1. download the 32 bit setup to a new directory(ex: C:\cygwin32) and run the setup. Make sure you make every path point to this new directory during the setup process.
2. Now, copy the crosstools directory to this new directory. So, it will be at C:\cygwin32\opt\cross\x-tools\arm-unknown-linux-gnueabi
3. Change all paths created in Eclipse in the ‘Path’ variable (and Windows Environment variables too, if you added cygwin there) to point to this new location
4. Now, clean and build the project and it should compile for you!

Another error I ran across is this:

Could not determine GDB version after sending: C:\cygwin32\opt\cross\x-tools\arm-unknown-linux-gnueabi\bin\arm-unknown-linux-gnueabi-gdb.exe –version

If you ran across this you installed python 2.7 instead of 2.6. Re-run the cygwin setup and change the python version to 2.6.x.x and install this python version. Re-run your program and it should be working.

I wrote this so it helps someone else to save a ton of time. HTH.

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