* update libsigc++ to 2.12.1-1

libsigc++/PKGBUILD

@@ -4,23 +4,30 @@
 # Contributor: Tom Newsom <Jeepster@gmx.co.uk>
 
 pkgbase=libsigc++
-pkgname=(libsigc++ libsigc++-docs)
-pkgver=2.12.0
+pkgname=(
+  libsigc++
+  libsigc++-docs
+)
+pkgver=2.12.1
 pkgrel=1
 pkgdesc="Callback Framework for C++"
 url="https://libsigcplusplus.github.io/libsigcplusplus/"
 arch=(x86_64 powerpc64le powerpc64 powerpc riscv64)
 license=(LGPL)
 depends=(gcc-libs)
-makedepends=(git meson mm-common)
+makedepends=(
+  git
+  meson
+  mm-common
+)
 options=(!emptydirs)
-_commit=9ae288305b16e4aee2d2ea1fcfb5968c924fa219  # tags/2.12.0^0
+_commit=6bef4e0005f00f0844d917866aec7e3b2d829fdf  # tags/2.12.1^0
 source=("git+https://github.com/libsigcplusplus/libsigcplusplus#commit=$_commit")
-sha256sums=('SKIP')
+b2sums=('SKIP')
 
 pkgver() {
   cd libsigcplusplus
-  git describe --tags | sed 's/-/+/g'
+  git describe --tags | sed 's/[^-]*-g/r&/;s/-/+/g'
 }
 
 prepare() {
@@ -28,7 +35,11 @@ prepare() {
 }
 
 build() {
-  arch-meson libsigcplusplus build -D maintainer-mode=true
+  local meson_options=(
+    -D maintainer-mode=true
+  )
+
+  arch-meson libsigcplusplus build "${meson_options[@]}"
   meson compile -C build
 }
 
@@ -39,7 +50,10 @@ check() {
 # Do not remove the space before the () or commitpkg will
 # accidentally to run this function on the system (!!!) 
 package_libsigc++ () {
-  provides=("libsigc++2.0=$pkgver" libsigc-2.0.so)
+  provides=(
+    "libsigc++2.0=$pkgver"
+    libsigc-2.0.so
+  )
   conflicts=(libsigc++2.0)
   replaces=(libsigc++2.0)