I fail to compile a C++ project for mobile device with Windows Mobile (Windows CE-based) operating system and Visual C++ compiler from Visual Studio fails with:
Error 1 fatal error C1083: Cannot open include file: 'io.h'
EDIT
I am trying to compile the SQLite amalgamation, the shell.c file includes the call to this io.h but the io.h is missing from the files.
I googled and I couldn't locate how can I get this .h file.
Can someone point me in the right direction?
The io.h file is not available in SDKs for Windows CE-based systems like Windows Mobile.
In fact, io.h header has never been a part of ISO C nor C++ standards. It defines features that belongs POSIX compatibility layer on Windows NT, but not Windows CE.
Due to lack of POSIX features on Windows CE, I developed a small utility library WCELIBCEX. It does include io.h but a very minimal version and which is likely insufficient for SQLite. However, as ctacke mentioned, you should use SQLite port for Windows CE because original version of SQLite is not compilable for this platform.
p.s. Note, Your question does not specify explicitly that you're building for Windows Mobile. If one doesn't spot the .NET Compact Framework mentioned in tags, then the whole question is ambiguous.