Actually, CPPFLAGS is for the C preprocessor, and is used for both C and C++
files. CXXFLAGS is used only for C++ files.
However, it is probably better to put -L/path in LDFLAGS, as below, or in
LDLIBS.
--- In "naturalwatt" <> wrote:
>
> --- In "j.chitte" <j.chitte@> wrote:
> I would think you would add -L /path/to/your/libraries to the CFLAGS.
> CPPFLAGS is only for C++ (.cxx) files.
>
> The compilation command listed below is a linker step as is refers to several
> .o (object) files and the output file as portmap.
>
> Alternatively set LDFLAGS to the /path/to/libraries.
>
> I don't recognise --sysroot as a GCC option.
>
> Martin
>
> >
> > Hi,
> >
> > I have managed to build dropbear with zlib since it has a ./configure
> > option : --with-zlib=<path to sysroot libz>
> >
> > but trying to build portmap , which is a makefile only project I get stuck
> > as to how to point it to the libs.
> >
> > CFLAGS="-march=armv4t" CPPFLAGS="--sysroot=/tsroot " make
> > ...
> > arm-unknown-linux-gnueabi-gcc -pie portmap.o pmap_check.o from_local.o
> > -lwrap -o portmap
> > /back/ts/ct-ng/x-tools/arm-unknown-linux-gnueabi/lib/gcc/arm-unknown-linux-gnueabi/4.3.2/../../../../arm-unknown-linux-gnueabi/bin/ld:
> > cannot find -lwrap
> >
> >
> > I would have thought sysroot would enable it to search the standard lib and
> > usr/lib paths but it does not seem to be the case.
> >
> > Is there another option I need to add to CPPFLAGS??
> >
> > TIA
> >
>
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