dev-libs/perfstubs: new package, add 0_pre20210915

Signed-off-by: Alessandro Barbieri <lssndrbarbieri@gmail.com>

dev-libs/perfstubs/Manifest

@@ -0,0 +1 @@
+DIST perfstubs-0_pre20210915.gh.tar.gz 27236 BLAKE2B 79eb382f9562581ba98f641e3f70cce16370b293129e2cf3264ccaea16ae108e2f63c8bd0b82399c6925112a121d05b5e9b442f21dcd1a247bb843c7839fb370 SHA512 5830c7a81200627951c7870065e44a166c560c19154d7a8d9ec015caa6a99501fbfe0a25c88e1200304da125956958a41da90362e14b06f9f2808a35756936c3

dev-libs/perfstubs/metadata.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+	<maintainer type="person">
+		<email>lssndrbarieri@gmail.com</email>
+		<name>Alessandro Barbieri</name>
+	</maintainer>
+	<longdescription lang="en">
+Profiling API for adding external tool instrumentation support to any project.
+This was motivated by the need to quickly add instrumentation to the ADIOS2 library without adding a build dependency, or tying to a specific measurement tool.
+The initial prototype implementation was tied to TAU, but evolved to this more generic version, which was extracted as a separate repository for testing and demonstration purposes.
+	</longdescription>
+	<upstream>
+		<bugs-to>https://github.com/khuck/perfstubs/issues</bugs-to>
+		<remote-id type="github">khuck/perfstubs</remote-id>
+	</upstream>
+	<use>
+		<flag name="default">Use provided perfstubs tool_example</flag>
+		<flag name="timers">Use our own tool_example of timers</flag>
+		<flag name="tools">Build libperfstsubs_n</flag>
+	</use>
+</pkgmetadata>

dev-libs/perfstubs/perfstubs-0_pre20210915.ebuild

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+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit cmake fortran-2
+
+COMMIT="bdd9118a6e4af9245640ccb58b4f49cbf5aaa899"
+
+DESCRIPTION="Profiling API for adding external tool instrumentation support to any project"
+HOMEPAGE="https://github.com/khuck/perfstubs"
+SRC_URI="https://github.com/khuck/${PN}/archive/${COMMIT}.tar.gz -> ${PF}.gh.tar.gz"
+S="${WORKDIR}/${PN}-${COMMIT}"
+
+LICENSE="BSD"
+SLOT="0/${PV}"
+KEYWORDS="~amd64"
+IUSE="+default examples +timers tools"
+
+pkg_setup() {
+	fortran-2_pkg_setup
+}
+
+src_prepare() {
+	sed \
+		-e "s|/lib|/$(get_libdir)|g" \
+		-e "s|DESTINATION lib|DESTINATION $(get_libdir)|g" \
+		-i CMakeLists.txt || die
+
+	cmake_src_prepare
+}
+
+src_configure() {
+	local mycmakeargs=(
+		-DBUILD_SHARED_LIBS=ON
+		-DPERFSTUBS_USE_STATIC=OFF
+
+		-DPERFSTUBS_BUILD_EXAMPLES=$(usex examples)
+		-DPERFSTUBS_BUILD_MULTI_TOOL=$(usex tools)
+		-DPERFSTUBS_USE_DEFAULT_IMPLEMENTATION=$(usex default)
+		-DPERFSTUBS_USE_TIMERS=$(usex timers)
+	)
+	cmake_src_configure
+}
+
+src_install() {
+	cmake_src_install
+	dodoc README.md
+}