On Monday 07 July 2008, Hendrik Sattler wrote: > Zitat von Alexander Neundorf <[EMAIL PROTECTED]>: > > On Wednesday 02 July 2008, Hendrik Sattler wrote: > >> Am Mittwoch, 2. Juli 2008 18:59:37 schrieb Wookey: > > > > ... > > > >> Additionally, I found that the include paths are another source of > >> problems, not fully covered by the cmake cross compiling, yet. You > >> really have to -I any path that is not known and specific to the cross > >> compiler, using INCLUDE_DIRECTORIES(). This is not done automatically > >> for the changed ROOT_PATH, yet. > > > > Can you please explain more detailled ? I don't understand what you mean. > > If you find such problems, please report them in the cmake bugtracker. > > If you include a non-standard header file in your program: > #include <foo/bar.h> > > and foo sits /path/to/non-native (e.g. /opt/cross-root/usr/include > with /opt/cross-root being CMAKE_FIND_ROOT_PATH), then it will not be > found. How could it, the compiler doesn't know about /opt/cross-root > as it is installed somewhere else. So you must tell the compiler with > -I/opt/cross-root/usr/include that it should look there. Currently, I > do something like: > foreach ( dir ${CMAKE_FIND_ROOT_PATH} ) > foreach ( inc usr/local/include usr/include include )
I think /usr/local/include isn't always part of the built-in search path, but usr/include and include look good. > if ( EXISTS "${dir}/${inc}" ) > include_directories( SYSTEM "${dir}/${inc}" ) > endif ( EXISTS "${dir}/${inc}" ) > endforeach ( inc ) > endforeach ( dir ) > > That make it "just work". Same goes for pkg-config. > > If I do a find_* in cmake first to find that include, that will solve > that, sure. Yes, that would be the general advice for that kind of problems. What do the other cmake devs think ? Is it the authors fault if he didn't search for the correct header using FIND_PATH() or should we add these include dirs automatically ? Beside that, what would you think about using -nostdinc ? Alex _______________________________________________ CMake mailing list CMake@cmake.org http://www.cmake.org/mailman/listinfo/cmake