main/flac: Added static library

I made the shared build overwrite the installed files so people
using cmake to find dependencies would default to the shared libraries.
For people using direct linking or pkg-config, this doesn't effect them.

Signed-off-by: Charadon <dev@iotib.net>

main/flac/APKBUILD

@@ -1,13 +1,13 @@
 # Maintainer: Natanael Copa <ncopa@alpinelinux.org>
 pkgname=flac
 pkgver=1.4.3
-pkgrel=1
+pkgrel=2
 pkgdesc="Free Lossless Audio Codec"
 url="https://xiph.org/flac/"
 arch="all"
 license="BSD-3-Clause AND GPL-2.0-or-later"
 options="!check" # Tests are infinite
-subpackages="$pkgname-dev $pkgname-libs libflac libflac++:libpp $pkgname-doc"
+subpackages="$pkgname-static $pkgname-dev $pkgname-libs libflac libflac++:libpp $pkgname-doc"
 makedepends="cmake libogg-dev !libiconv samurai"
 source="https://downloads.xiph.org/releases/flac/flac-$pkgver.tar.xz"
 
@@ -22,6 +22,7 @@ build() {
 	export CFLAGS="$CFLAGS -O3 -flto=auto"
 	export CXXFLAGS="$CXXFLAGS -O3 -flto=auto"
 
+	# Shared
 	cmake -B build -G Ninja \
 		-DCMAKE_INSTALL_PREFIX=/usr \
 		-DCMAKE_BUILD_TYPE=None \
@@ -29,15 +30,27 @@ build() {
 		-DBUILD_EXAMPLES=OFF \
 		-DBUILD_SHARED_LIBS=ON \
 		-DNDEBUG=ON
+	# Static
+	cmake -B build-static -G Ninja \
+		-DCMAKE_INSTALL_PREFIX=/usr \
+		-DCMAKE_BUILD_TYPE=None \
+		-DBUILD_TESTING=OFF \
+		-DBUILD_EXAMPLES=OFF \
+		-DBUILD_SHARED_LIBS=OFF \
+		-DNDEBUG=ON
 
 	cmake --build build
+	cmake --build build-static
 }
 
 check() {
 	ctest --test-dir build
+	ctest --test-dir build-static
 }
 
 package() {
+	# Static goes first, so it won't overwrite the shared version of files.
+	DESTDIR="$pkgdir" cmake --install build-static
 	DESTDIR="$pkgdir" cmake --install build
 
 	install -Dm0644 COPYING.Xiph \