Steve Langasek wrote:
> Hi Adam,
>
> On Tue, 27 Feb 2001, Adam C Powell IV wrote:
>
> > > Have you copied the -L option verbatim? If so, the error is clear:
> > > there's no $ between the -L and the {. Otherwise, I have no idea.
>
> > I'm sorry, I was very imprecise. Here are the details:
>
> > # For mpich: (woody mpich uses /usr/lib/mpich/lib, potato the longer dir)
> > ifeq ($(PETSC_MPI),mpich)
> > MPI_HOME = /usr/lib/mpich
> > MPI_LIB = -L${MPI_HOME}/lib -L${MPI_HOME}/build/LINUX/ch_p4/lib -lmpich
> > MPIRUN = /usr/bin/mpirun.mpich -machinefile /etc/mpich/machines.LINUX
> > MPI_INCLUDE = -I/usr/lib/mpich/include
>-I/usr/lib/mpich/build/LINUX/ch_p4/include
> > endif
>
> > And the output from the top-level info: target:
>
> > [snip]
> > Using C linker: gcc -O2 -Wall -Wshadow -fomit-frame-pointer
> > -L/usr/home/hazelsct/petsc/petsc-2.0.29/lib/libO/linux_ppc
> > Using Fortran linker: g77 -O2
> > -L/usr/home/hazelsct/petsc/petsc-2.0.29/lib/libO/linux_ppc
> > Using libraries: -L/usr/home/hazelsct/petsc/petsc-2.0.29/lib/libO/linux_ppc
> > -lpetscts -lpetscsnes -lpetscsles -lpetscdm -lpetscmat -lpetscvec
> > -L/usr/home/hazelsct/petsc/petsc-2.0.29/lib/libO/linux_ppc -lpetsc
> > -L{MPI_HOME}/build/LINUX/ch_p4/lib -lmpe
> > -lpmpich -L/usr/X11R6/lib
> > -lX11 -llapack -blas -L/usr/lib/mpich/lib
> > -L/usr/lib/mpich/build/LINUX/ch_p4/lib -lmpich -ldl -lc -lg2c -lm
> > ==========================================
> > [snip]
>
> > Note the -L{MPI_HOME}/build/...
>
> > Okay, what's really odd, is that the installed -dev packages on the alpha with the
> > same bmake files as the source package (just diffed them) work fine, but when I
> > try to build new packages it screws up! That's really bizarre. (Yes, I've
> > confirmed that during the package build, PETSC_DIR points to the source directory,
> > not /usr/lib/petsc of the installed package. That too is printed by the info:
> > target, and shows up in the -L flags above.)
>
> You mention bmake (as opposed to 'make'), and I'm not sure what that is, so my
> comments may not actually apply
bmake is a directory name, nothing more.
> but it looks like what you need to do here
> is reference another makefile variable called MPI_HOME.
Yup.
> The way to this is
> with the syntax $(MPI_HOME) -- note the parens in place of braces. I believe
> ${MPI_HOME} references a non-existent /environment/ variable. (Elsewhere the
> braces may indeed be correct, since you mention the use of multiple makefiles,
> but if you need to reference a Makefile variable set in the same file, you
> should normally use parentheses.)
I see. So something has changed recently in unstable such that braces don't always
work
any more? I usually use parentheses myself, but upstream has braces all over the
place-
I assumed they were interchangable (okay, so I'm a "make" newbie :-).
So why do braces work everywhere else in the makefile and all of the included files?
Why
do they fail in exactly the same place on every architecture? Do I need to do a
massive
global search and replace to switch braces to parentheses everywhere??
I can't find anything relevant in the make info page either...
Zeen,
-Adam P.
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