[Rd] Problem with compiling OpenBLAS to work with R

[Avraham Adler]

I believe that repo just follows the directions on my blog. Without seeing
Dr. Hodges’s code, my initial concern is the many references to Cygwin. My
method specifically does not use Cygwin but MSYS2 and Mingw64/Rtools35.
That will likely change to solely Rtools40 once R3.6 is released due to the
Msys system being built in to it.

There may be some library conflicts between Cygwin and msys2/mingw64. If
possible, my suggestion would be uninstall everything and then just install
msys2 (and add in make after you to the first msys update) and rtools35.
Then there should be no conflicting libraries.

Thanks,

Avi

On Thu, Feb 28, 2019 at 12:11 AM Kenny Bell <kmbell56 using gmail.com> wrote:

> This person has had apparent success - you could follow what they did or
> just download their product (with appropriate caution downloading a random
> .exe).
>
> https://github.com/thequackdaddy/R-OpenBLAS
>
> On Thu, Feb 28, 2019 at 6:28 AM Erin Hodgess <erinm.hodgess using gmail.com>
> wrote:
>
> > Hello!
> >
> > I'm not sure if this is the right place to post this, so apologies
> > in advance if I'm not in the right list.
> >
> > I downloaded the OpenBLAS and am following Avraham Adler's great
> > instructions.  However, when I run make, things go well to a certain
> point,
> > and then go bad:
> >
> > make
> > [snip]
> >
> > touch cygopenblas_haswellp-r0.3.5.a
> > make -j 1 -C test all
> > make[1]: Entering directory
> > '/home/erinm/OPB_HOME/xianyi-OpenBLAS-eebc189/test'
> > gfortran -O2 -Wall -frecursive -m64 -mavx2   -o sblat1 sblat1.o
> > ../cygopenblas_haswellp-r0.3.5.a  -L/usr/lib/gcc/x86_64-pc-msys/7.3.0
> > -L/usr/lib/gcc/x86_64-pc-msys/7.3.0/../../../../x86_64-pc-msys/lib/../lib
> > -L/usr/lib/../lib
> > -L/usr/lib/gcc/x86_64-pc-msys/7.3.0/../../../../x86_64-pc-msys/lib
> > -L/usr/lib/w32api  -lmsys-2.0
> > D:/msys64/usr/lib/../lib/libpthread.a(t-d001088.o):fake:(.text+0x2):
> > undefined reference to `__imp_pthread_mutex_destroy'
> > D:/msys64/usr/lib/../lib/libpthread.a(t-d001090.o):fake:(.text+0x2):
> > undefined reference to `__imp_pthread_mutex_init'
> > D:/msys64/usr/lib/../lib/libpthread.a(t-d001091.o):fake:(.text+0x2):
> > undefined reference to `__imp_pthread_mutex_lock'
> > D:/msys64/usr/lib/../lib/libpthread.a(t-d001094.o):fake:(.text+0x2):
> > undefined reference to `__imp_pthread_mutex_trylock'
> > D:/msys64/usr/lib/../lib/libpthread.a(t-d001095.o):fake:(.text+0x2):
> > undefined reference to `__imp_pthread_mutex_unlock'
> > collect2.exe: error: ld returned 1 exit status
> > make[1]: *** [Makefile:134: sblat1] Error 1
> > make[1]: Leaving directory
> > '/home/erinm/OPB_HOME/xianyi-OpenBLAS-eebc189/test'
> > make: *** [Makefile:124: tests] Error 2
> >
> >
> > I think it has something to do with the threads/pthreads but am not sure
> > how to fix it.  Any suggestions much appreciated.
> >
> > Thanks,
> > Sincerely,
> > Erin
> >
> > Erin Hodgess, PhD
> > mailto: erinm.hodgess using gmail.com
> >
> >         [[alternative HTML version deleted]]
> >
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> >
>
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>
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