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Subject: Re: cblas library missing in liblapack-devel
To: cygwin AT cygwin DOT com
References: <8a87d61e-5a47-2487-2abd-51a54e07a159 AT free DOT fr>
From: cyg Simple <cygsimple AT gmail DOT com>
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Message-ID: <8014c93f-8a0e-7efd-7f07-2b236c88fab9@gmail.com>
Date: Thu, 1 Nov 2018 16:19:57 -0400
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On 11/1/2018 3:54 PM, Falk Tannhäuser wrote:
> The package liblapack-devel (LAPACK library for linear algebra
> operations, see
> https://cygwin.com/cgi-bin2/package-cat.cgi?file=x86_64%2Fliblapack-devel%2Fliblapack-devel-3.8.0-1&grep=cblas)
> 
> contains the header file usr/include/cblas.h (among others), library
> files as usr/lib/libblas.a, usr/lib/liblapack.a etc. as well as the file
> usr/lib/pkgconfig/cblas.pc . The command `pkg-config --libs cblas`
> returns "-lcblas". However, no library file libcblas.a is present, causing
> building of some software packages depending on this library to fail.
> On the other hand, the Win64 toolchain package mingw64-x86_64-cblas (see
> https://cygwin.com/cgi-bin2/package-cat.cgi?file=x86_64%2Fmingw64-x86_64-cblas%2Fmingw64-x86_64-cblas-3.7.0-1&grep=cblas)
> does comport the library
> usr/x86_64-w64-mingw32/sys-root/mingw/lib/libcblas.dll.a .
> Am I missing something during Cygwin installation?

Looks like a lapack-devel packaging issue.

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