sci-libs/blas-lapack-aux-wrapper: Bump to 3

Bug: https://bugs.gentoo.org/967081
Signed-off-by: Michał Górny <mgorny@gentoo.org>

sci-libs/blas-lapack-aux-wrapper/Manifest

@@ -1,4 +1,5 @@
 DIST blas-lapack-aux-wrapper-0.tar.xz 8356 BLAKE2B 765c1efad487d449064892ba8213232b245cb33159dcc35c3fda2552f72d8097ff8e21e711b81c4598a9c76a6ce2314fd86a5a1f171917f079ddb008d5547d64 SHA512 412662a79f2c01a12a0ac4e656710675487036172704ab88093f04626c5adb4770503b65184ce8546ac10d8b522ee2241cb6e638ccfc10a005bf6d55597a3830
 DIST blas-lapack-aux-wrapper-1.tar.xz 8696 BLAKE2B 887a7a4868d7d3de281030f2cb7215490d70324ee3669f55a0416e4502227e7e79ca160a26e94f9a77656740664f35f7a8ed25910e62c2bcf53441c0220c37be SHA512 4397e9bbd2f55dc07dc3a0c65413d61abc9b27fa1d38a298930064661abccdfa485fc66fc2755bff3db0847457754742a2045d216f6f31d54d631c89d2920302
 DIST blas-lapack-aux-wrapper-2.tar.xz 8684 BLAKE2B 194c182f690341756fcd801354e08f351fdf6d6ff9fec19270b022b2c4d033ab023631bc7b89f7e9c6898dc0df4df770f8db1c92d7fd697c315a25006c0a851e SHA512 087b7ba6febee81221295494c2d8cdd285dc9d1d9c34725f87def1d1b3dfd6d32f0474b84b32159613c30ace0f29f79fe9230aaa37585db918ec176e2ef51809
+DIST blas-lapack-aux-wrapper-3.tar.xz 8928 BLAKE2B 4c2bbd067b1aa0ffcc3d3d39d93ebeb6600212e7da4ea9a14338ba00079cbfd29414297b1f37e55df8009ed6f3d2de1812a84551e4a3916414c96ee76b68fc50 SHA512 d67099a82f7987eb6e4a5bf1563f5e6e7060b246a5220655427a97fb6d6e32c75a098436770fc9c89da99f5755d58b4393f757c7361f29834dde808ae8c7deea
 DIST lapack-3.12.1.tar.gz 8067087 BLAKE2B 13fd3bbb6d1f23eb0add0a71d302af7af172d608b3e2354031d0b13cb7fbf243017d85b53ca04322983c5ed069ad3773510833d231d533b2dc417962cc24a817 SHA512 9749976d773830eb635498611c7f1247af8dece23fe8c08446243aa39bdcc20dd35fdc670345643cd1ec6828e379d5c2152009817e0b486c10fd89a06602e0fb

sci-libs/blas-lapack-aux-wrapper/blas-lapack-aux-wrapper-3.ebuild

@@ -0,0 +1,116 @@
+# Copyright 2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+PYTHON_COMPAT=( python3_{11..14} )
+
+inherit meson python-any-r1 toolchain-funcs
+
+LAPACK_VER=3.12.1
+DESCRIPTION="BLAS/LAPACK wrappers for FlexiBLAS"
+HOMEPAGE="https://gitweb.gentoo.org/proj/blas-lapack-aux-wrapper.git/"
+SRC_URI="
+	https://dev.gentoo.org/~mgorny/dist/${P}.tar.xz
+	test? (
+		https://github.com/Reference-LAPACK/lapack/archive/v${LAPACK_VER}.tar.gz
+			-> lapack-${LAPACK_VER}.tar.gz
+	)
+"
+
+LICENSE="GPL-2+"
+SLOT="0"
+KEYWORDS="~amd64 ~arm ~arm64 ~ppc ~ppc64 ~riscv ~x86"
+IUSE="index64 test"
+RESTRICT="!test? ( test )"
+
+RDEPEND="
+	!sci-libs/lapack[-flexiblas(-)]
+	>=sci-libs/flexiblas-3.4.82-r4:=[index64(-)?]
+"
+DEPEND="
+	${RDEPEND}
+	sci-libs/lapack:=[flexiblas(-),index64(-)?,lapacke]
+"
+BDEPEND="
+	${PYTHON_DEPS}
+"
+
+# we do not call the compiler, only the linker
+QA_FLAGS_IGNORED=".*"
+
+src_configure() {
+	# We rely on some specific linker features (bug #965199)
+	if ! tc-ld-is-bfd && ! tc-ld-is-lld; then
+		tc-ld-force-bfd
+	fi
+
+	local emesonargs=(
+		-Dilp64=$(usex index64 true false)
+	)
+
+	meson_src_configure
+}
+
+check_result() {
+	local f=${1}
+
+	if ! grep -q "flexiblas.*TRIGGER-WARNING" "${f}.out"; then
+		die "No FlexiBLAS output found in ${f}.out"
+	fi
+	if grep -q -i "FAIL" "${f}.out"; then
+		die "Test failed in ${f}.out"
+	fi
+}
+
+run_test() {
+	local f=${1}
+
+	einfo "Running ${f} ..."
+	"${f}" &> "${f}.out" || die "Running ${f} failed"
+	check_result "${f}"
+}
+
+src_test() {
+	# Force a nonexisting provider to:
+	# a. get indication that FlexiBLAS is actually used on stderr.
+	# b. force fallback to Netlib LAPACK.
+	local -x FLEXIBLAS=trigger-warning
+	tc-export CC FC AR RANLIB
+
+	cd "${WORKDIR}/lapack-${LAPACK_VER}" || die
+	cat > make.inc <<-EOF || die
+		FFLAGS_DRV   = \$(FFLAGS)
+		FFLAGS_NOOPT = \$(FFLAGS) -O0
+		ARFLAGS      = rv
+
+		BLASLIB      = ${BUILD_DIR}/libblas.so
+		CBLASLIB     = ${BUILD_DIR}/libcblas.so
+		LAPACKLIB    = ${BUILD_DIR}/liblapack.so
+		TMGLIB       = \$(TOPSRCDIR)/libtmglib.a
+		LAPACKELIB   = ${BUILD_DIR}/liblapacke.so
+	EOF
+
+	emake -C BLAS/TESTING xblat1d
+	emake -C CBLAS include/cblas_mangling.h
+	run_test BLAS/TESTING/xblat1d
+
+	emake -C CBLAS/testing xdcblat1
+	run_test CBLAS/testing/xdcblat1
+
+	emake -C TESTING/MATGEN
+	emake -C TESTING dbb.out
+	check_result TESTING/dbb
+}
+
+src_install() {
+	meson_src_install
+
+	local f
+	cd "${ED}/usr/$(get_libdir)" || die
+	mkdir blas-lapack-aux-wrapper || die
+	mv lib* blas-lapack-aux-wrapper/ || die
+	for f in blas-lapack-aux-wrapper/*.so; do
+		ln -s "${f}" || die
+	done
+}