cygwin install FGSL? - cygwin

Question

I use gfortran on cygwin and want to install the FGSL package, then I try
xxx#xxx-PC ~
$wget http://www.lrz.de/services/software/mathematik/gsl/fortran/download/fgsl-1.0.0.tar.gz
$tar zxvf fgsl-1.0.0.tar.gz
$cd fgsl-1.0.0
$./configure
so far so good, then what next should I do?
https://de.wikibooks.org/wiki/Fortran:_FGSL
My apologies. Under Vladimir's guidance, I try
xxx#xxx-PC ~/fgsl-1.0.0
$ make
make all-recursive
make[1]: Entering directory '/cygdrive/d/CygwinWorkshop/fgsl-1.0.0'
Making all in .
make[2]: Entering directory '/cygdrive/d/CygwinWorkshop/fgsl-1.0.0'
/bin/sh ./libtool --tag=FC --mode=link gfortran -g -O2 -version-info 0:0:0 -o libfgsl.la -rpath /usr/local/lib fgsl.lo libfgsl_la-fgsl_utils.lo -lgsl -lgslcblas -lblas
/usr/bin/grep: /usr/lib/libblas.la: No such file or directory
/usr/bin/sed: can't read /usr/lib/libblas.la: No such file or directory
libtool: link: `/usr/lib/libblas.la' is not a valid libtool archive
Makefile:531: recipe for target 'libfgsl.la' failed
make[2]: *** [libfgsl.la] Error 1
make[2]: Leaving directory '/cygdrive/d/CygwinWorkshop/fgsl-1.0.0'
Makefile:636: recipe for target 'all-recursive' failed
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory '/cygdrive/d/CygwinWorkshop/fgsl-1.0.0'
Makefile:437: recipe for target 'all' failed
make: *** [all] Error 2
and
xxx#xxx-PC ~/fgsl-1.0.0
$ make install
Making install in .
make[1]: Entering directory '/cygdrive/d/CygwinWorkshop/fgsl-1.0.0'
/bin/sh ./libtool --tag=FC --mode=link gfortran -g -O2 -version-info 0:0:0 -o libfgsl.la -rpath /usr/local/lib fgsl.lo libfgsl_la-fgsl_utils.lo -lgsl -lgslcblas -lblas
/usr/bin/grep: /usr/lib/libblas.la: No such file or directory
/usr/bin/sed: can't read /usr/lib/libblas.la: No such file or directory
libtool: link: `/usr/lib/libblas.la' is not a valid libtool archive
Makefile:531: recipe for target 'libfgsl.la' failed
make[1]: *** [libfgsl.la] Error 1
make[1]: Leaving directory '/cygdrive/d/CygwinWorkshop/fgsl-1.0.0'
Makefile:636: recipe for target 'install-recursive' failed
make: *** [install-recursive] Error 1
Some errors that I don't know how to handle occur.
According to the hints by screen, I next check
$ apt-cyg install lapack
Package lapack is already installed, skipping
$ apt-cyg install liblapack-devel
Package liblapack-devel is already installed, skipping
A fortran code named bsp.f03 given by https://de.wikibooks.org/wiki/Fortran:_FGSL
is used for testing purpose
program bsp
use fgsl
implicit none
real( kind = fgsl_double ) :: a
real( kind = fgsl_double ) :: d = 5.0_fgsl_double
a = d ** 2 * m_pi_4
write( *, * ) "Kreisflaeche = ", a
end program bsp
then I compile and link
$g95 bsp.f03 -I/usr/local/include/g95 -L/usr/local/lib -lgsl -lfgsl_g95 -lgslcblas
-bash: g95: command not found
I use R for statistical
computing on windows a lot and I'm a total newcomer to fortran and cygwin, so please forgive my very basic and naive questions about the above.

Answer 1

You are missing the configure step.The source package was configured for a different system.
In general, for any build, you should run
autoreconf -ivf
./configure
make
In addition before these steps, replace in Makefile.am
libfgsl_la_LDFLAGS = -version-info #LIB_CURRENT#:#LIB_REVISION#:#LIB_AGE# #FGSL_LDFLAGS#
with
libfgsl_la_LDFLAGS = -version-info #LIB_CURRENT#:#LIB_REVISION#:#LIB_AGE# #FGSL_LDFLAGS# -no-undefined
to build the shared library.