kumquat-buildroot/package/clapack/Config.in
Thomas De Schampheleire b94e021004 package/{clapack,armadillo}: re-enable on MIPS
Commit d2b52cebf3 disabled clapack on MIPS
platforms, to fix an autobuild failure (unfortunately, the results are no
longer available). The argument was:

    "Disable this package for MIPS because it needs IRIX headers and
    libraries."

Nevertheless, today compilation on MIPS seems to work fine. Testing was done
with test-pkg (armadillo depends on clapack):

$ echo "BR2_PACKAGE_ARMADILLO=y" > config.snippet;
$ utils/test-pkg -p armadillo -a -c config.snippet
                 br-mips32r6-el-hf-glibc [1/8]: OK
                      br-mips64-n64-full [2/8]: OK
                 br-mips64r6-el-hf-glibc [3/8]: OK
                      br-mipsel-o32-full [4/8]: OK
             mips64el-ctng_n32-linux-gnu [5/8]: OK
             mips64el-ctng_n64-linux-gnu [6/8]: OK
                         sourcery-mips64 [7/8]: OK
                           sourcery-mips [8/8]: OK
8 builds, 0 skipped, 0 build failed, 0 legal-info failed

Manual build tests were also done for mips32r2 with gcc 4.9.x and gcc 7.x,
and for M5150 with gcc 7.x (Buildroot-built toolchains in these three
cases).

Also building and running on Octeon III, using the toolchain provided by
Cavium Networks / Marvell, works fine.

Not seeing any problem (but also not understanding the original problem),
re-enable clapack (and armadillo) on MIPS.  If any problems would pop up in
the future, they should be investigated in detail and a more fine-grained
solution should be taken than disabling on MIPS altogether.

Signed-off-by: Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2019-02-04 14:20:02 +01:00

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comment "clapack needs a glibc toolchain"
depends on BR2_powerpc
depends on !BR2_TOOLCHAIN_USES_GLIBC
config BR2_PACKAGE_CLAPACK
bool "cblas/clapack"
# _fpu_control is used on PowerPC, but not available with
# uClibc or musl
depends on !BR2_powerpc || BR2_TOOLCHAIN_USES_GLIBC
# assembler: Error: value out of range
depends on !BR2_m68k_cf
help
BLAS and LAPACK C implementation (f2c'ed version of).
http://www.netlib.org/clapack/
config BR2_PACKAGE_CLAPACK_ARITH_H
string "Custom BLAS arith.h"
depends on BR2_PACKAGE_CLAPACK
help
To optimize BLAS library for the hardware, an 'arith.h' header
should be provided.
If empty, the library will not be optimized by the compiler.
In any case an 'arithchk' program is built
(but not installed), to be run on the target to generate this
arith.h header.