sci-biology/uchime: update EAPI 7 -> 8

Signed-off-by: David Seifert <soap@gentoo.org>

sci-biology/uchime/files/CMakeLists.patch

@@ -0,0 +1,21 @@
+--- /dev/null
++++ b/CMakeLists.txt
+@@ -0,0 +1,18 @@
++cmake_minimum_required(VERSION 2.8.12)
++project(UCHIME LANGUAGES CXX)
++
++include(GNUInstallDirs)
++
++set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -D_FILE_OFFSET_BITS=64 -DUCHIMES=1")
++
++# "myutils.h: error: reference to byte is ambiguous""
++# bug #786297
++set(CMAKE_CXX_STANDARD 14)
++set(CMAKE_CXX_STANDARD_REQUIRED ON)
++set(CMAKE_CXX_EXTENSIONS OFF)
++
++# Simply copy the source files from the mk script
++add_executable(uchime
++				addtargets2.cpp alignchime.cpp alignchimel.cpp alnparams.cpp alpha.cpp alpha2.cpp fractid.cpp getparents.cpp globalalign2.cpp make3way.cpp mx.cpp myutils.cpp path.cpp searchchime.cpp seqdb.cpp setnucmx.cpp sfasta.cpp tracebackbit.cpp uchime_main.cpp usort.cpp viterbifast.cpp writechhit.cpp)
++
++INSTALL(TARGETS uchime DESTINATION ${CMAKE_INSTALL_BINDIR})

sci-biology/uchime/files/CMakeLists.txt

@@ -1,12 +0,0 @@
-cmake_minimum_required(VERSION 2.8.12)
-project(UCHIME)
-
-include(GNUInstallDirs)
-
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -D_FILE_OFFSET_BITS=64 -DUCHIMES=1")
-
-# Simply copy the source files from the mk script
-add_executable(uchime 
-				addtargets2.cpp alignchime.cpp alignchimel.cpp alnparams.cpp alpha.cpp alpha2.cpp fractid.cpp getparents.cpp globalalign2.cpp make3way.cpp mx.cpp myutils.cpp path.cpp searchchime.cpp seqdb.cpp setnucmx.cpp sfasta.cpp tracebackbit.cpp uchime_main.cpp usort.cpp viterbifast.cpp writechhit.cpp)
-
-INSTALL(TARGETS uchime DESTINATION ${CMAKE_INSTALL_BINDIR})

sci-biology/uchime/uchime-4.2.40-r1.ebuild

@@ -1,30 +1,19 @@
 # Copyright 1999-2022 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
-EAPI=7
+EAPI=8
+
+inherit cmake
 
 MY_P="${PN}${PV}_src"
-inherit cmake flag-o-matic
 
 DESCRIPTION="Fast, accurate chimera detection"
 HOMEPAGE="https://www.drive5.com/usearch/manual/uchime_algo.html"
 SRC_URI="https://www.drive5.com/${PN}/${MY_P}.tar.gz"
+S="${WORKDIR}/${MY_P}"
 
 LICENSE="public-domain"
 SLOT="0"
 KEYWORDS="amd64 x86 ~amd64-linux ~x86-linux"
 
-S="${WORKDIR}"/${MY_P}
-
-src_prepare() {
-	cp "${FILESDIR}"/CMakeLists.txt . || die
-	cmake_src_prepare
-}
-
-src_configure() {
-	# "myutils.h: error: reference to byte is ambiguous""
-	# bug #786297
-	append-cxxflags -std=c++14
-
-	cmake_src_configure
-}
+PATCHES=( "${FILESDIR}"/CMakeLists.patch )