I am compiling a program, which requires reed-solomon-4.0 library inorder for it to work. I compile reed-solomon and then this other software. All works fine under x86. But when i do a cross compile i get an error that says it can't find rs.h. I never got this error when not cross compiling. This is a header file for reed-solomon. I have cross compiled reed-solomon and installed it. The file is in /usr/include and in /usr/local/include How can i make it see this file? For me to cross compile i am changing all re fences in the Makefile of gcc to arm-Linux-gcc. Can anyone explain to me why this program can find this file when i am cross compiling?