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# Copyright 1999-2021 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=8
inherit flag-o-matic toolchain-funcs multilib multilib-minimal
DESCRIPTION="Extremely fast library for floating-point convolution"
HOMEPAGE="https://cr.yp.to/djbfft.html"
SRC_URI="https://cr.yp.to/djbfft/${P}.tar.gz"
LICENSE="public-domain"
SLOT="0"
KEYWORDS="~alpha ~amd64 arm arm64 ~hppa ppc ppc64 ~riscv sparc x86 ~amd64-linux ~x86-linux"
PATCHES=(
"${FILESDIR}"/${P}-gcc3.patch
"${FILESDIR}"/${P}-shared.patch
"${FILESDIR}"/${P}-headers.patch
)
DOCS=( CHANGES README TODO VERSION )
src_prepare() {
default
# mask out everything which is not suggested by the author (RTFM)!
ALLOWED_FLAGS="-fstack-protector -march -mcpu -pipe -mpreferred-stack-boundary -ffast-math"
strip-flags
SOVER="${PV:0:1}.${PV:2:1}.${PV:3:1}" # a.bc -> a.b.c
SONAME="libdjbfft.so.${SOVER}"
multilib_copy_sources
}
multilib_src_configure() {
[[ ${ABI} == x86* ]] && append-cflags -malign-double
sed -i -e "s:\"lib\":\"$(get_libdir)\":" hier.c || die
echo "$(tc-getCC) ${CFLAGS} -fPIC" > "conf-cc"
echo "$(tc-getCC) ${LDFLAGS}" > "conf-ld"
echo "${ED}/usr" > "conf-home"
einfo "conf-cc: $(<conf-cc)"
}
multilib_src_compile() {
emake \
LIBDJBFFT=${SONAME} \
LIBPERMS=0755 \
${SONAME}
echo "the compile function was:"
cat ./compile
echo "the conf-ld function was:"
cat ./conf-ld
}
multilib_src_test() {
local t
for t in accuracy accuracy2 speed; do
emake ${t}
einfo "Testing ${t}"
LD_LIBRARY_PATH=. ./${t} > ${t}.out || die "test ${t} failed"
done
}
multilib_src_install() {
emake LIBDJBFFT=${SONAME} install
./install || die "install failed"
dosym ${SONAME} /usr/$(get_libdir)/libdjbfft.so
dosym ${SONAME} /usr/$(get_libdir)/libdjbfft.so.${SOVER%%.*}
}
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