[SciPy-user] Problem building scipy with UMFPACK

Robin robince@gmail....
Thu Oct 4 13:09:22 CDT 2007


Hi,

I have succesfully built scipy with ATLAS 3.7.37 and fftw. However when I
try to include UMFPACK I start to get problems.

I am using cygwin with gcc 3.4.4 on Windows XP. I managed to get everything
working so far by adding in flags -mno-cygwin and -fno-second-underscore
everywhere I could.

My UFConfig.mk includes the following
BLAS = -L/cygdrive/c/scipy/libs -llapack -lf77blas -lcblas -latlas -lg2c
LAPACK = -L/cygdrive/c/scipy/libs -llapack -lf77blas -lcblas -latlas -lg2c
and UMFPACK builds without error.

However when I try to build scipy I get the following:

building 'scipy.linsolve.umfpack.__umfpack' extension
compiling C sources
C compiler: gcc -mno-cygwin -O2 -Wall -Wstrict-prototypes

compile options: '-DSCIPY_UMFPACK_H -DSCIPY_AMD_H -DATLAS_INFO="\"?.?.?\""
-Ic:\
scipy\libs\include\umfpack -Ic:\scipy\libs\include
-Ic:\Python25\lib\site-packag
es\numpy\core\include -Ic:\Python25\include -Ic:\Python25\PC -c'
g++ -mno-cygwin -shared build\temp.win32-
2.5\Release\build\src.win32-2.5\scipy\l
insolve\umfpack\_umfpack_wrap.o -Lc:\scipy\libs -Lc:\Python25\libs
-Lc:\Python25
\PCBuild -Lbuild\temp.win32-2.5 -lumfpack -lamd -lamd -lg2c -lgcc -lumfpack
-lg2
c -lgcc -llapack -lf77blas -lcblas -latlas -lpython25 -lmsvcr71 -o
build\lib.win
32-2.5\scipy\linsolve\umfpack\__umfpack.pyd
Found executable C:\cygwin\bin\g++.exe
c:\scipy\libs/libf77blas.a(xerbla.o):xerbla.f:(.text+0xe): undefined
reference t
o `_s_wsfe'
c:\scipy\libs/libf77blas.a(xerbla.o):xerbla.f:(.text+0x29): undefined
reference
to `_do_fio'
c:\scipy\libs/libf77blas.a(xerbla.o):xerbla.f:(.text+0x44): undefined
reference
to `_do_fio'
c:\scipy\libs/libf77blas.a(xerbla.o):xerbla.f:(.text+0x49): undefined
reference
to `_e_wsfe'
c:\scipy\libs/libf77blas.a(xerbla.o):xerbla.f:(.text+0x5d): undefined
reference
to `_s_stop'
collect2: ld returned 1 exit status
error: Command "g++ -mno-cygwin -shared build\temp.win32-
2.5\Release\build\src.w
in32-2.5\scipy\linsolve\umfpack\_umfpack_wrap.o -Lc:\scipy\libs
-Lc:\Python25\li
bs -Lc:\Python25\PCBuild -Lbuild\temp.win32-2.5 -lumfpack -lamd -lamd -lg2c
-lgc
c -lumfpack -lg2c -lgcc -llapack -lf77blas -lcblas -latlas -lpython25
-lmsvcr71
-o build\lib.win32-2.5\scipy\linsolve\umfpack\__umfpack.pyd" failed with
exit st
atus 1

>From searching the internet it seems the undefined references are part of
the fortran IO library, so I added in g2c and gcc as required libraries and
copied them to my scipy.libs directory. However as you can see the error
still occurs... I'm a bit stuck as to what to try next.

Thanks,

Robin
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