Add build files

The warning "Package contains reference to $srcdir" is expected.
See snitch-org/snitch#62.

.SRCINFO

@@ -0,0 +1,14 @@
+pkgbase = snitch
+	pkgdesc = Lightweight C++20 testing framework
+	pkgver = 1.0.0
+	pkgrel = 1
+	url = https://github.com/cschreib/snitch
+	arch = x86_64
+	license = Boost
+	makedepends = cmake
+	makedepends = python
+	depends = gcc-libs
+	source = snitch-1.0.0.tar.gz::https://github.com/cschreib/snitch/archive/v1.0.0.tar.gz
+	b2sums = 388dc536c87ed664c885b69290bc5e3d1cb18df2f9fccc8d7ea973f41cfd362d2a6a66685a907f67a5f7a039e50158e008d6bda0383894efe6eaa5a45a645aed
+
+pkgname = snitch

.gitignore

@@ -0,0 +1,6 @@
+/**
+!/**/
+
+!/.gitignore
+!/.SRCINFO
+!/PKGBUILD

PKGBUILD

@@ -0,0 +1,26 @@
+# Maintainer: tocic <tocic at protonmail dot ch>
+
+pkgname=snitch
+pkgver=1.0.0
+pkgrel=1
+pkgdesc="Lightweight C++20 testing framework"
+arch=("x86_64")
+url="https://github.com/cschreib/snitch"
+license=("Boost")
+depends=("gcc-libs")
+makedepends=("cmake" "python")
+source=("${pkgname}-${pkgver}.tar.gz::https://github.com/cschreib/snitch/archive/v${pkgver}.tar.gz")
+b2sums=("388dc536c87ed664c885b69290bc5e3d1cb18df2f9fccc8d7ea973f41cfd362d2a6a66685a907f67a5f7a039e50158e008d6bda0383894efe6eaa5a45a645aed")
+
+build() {
+  cmake -B "build/" -S "${pkgname}-${pkgver}" \
+    -D BUILD_SHARED_LIBS:BOOL="ON" \
+    -D CMAKE_INSTALL_PREFIX:PATH="/usr/" \
+    -Wno-dev
+
+  cmake --build "build/"
+}
+
+package() {
+  DESTDIR="${pkgdir}" cmake --install "build/"
+}