nginx-current: enable lto

nginx-current/APKBUILD

@@ -1,7 +1,7 @@
 # Maintainer: psykose <alice@ayaya.dev>
 pkgname=nginx-current
 pkgver=1.23.0
-pkgrel=0
+pkgrel=1
 pkgdesc="HTTP and reverse proxy server (current version)"
 url="https://www.nginx.org/"
 arch="all"
@@ -9,10 +9,12 @@ license="BSD-2-Clause"
 depends="!nginx"
 makedepends="
 	brotli-dev
+	clang
 	file-dev
 	gd-dev
 	libxml2-dev
 	libxslt-dev
+	lld
 	linux-headers
 	openssl3-dev
 	pcre2-dev
@@ -37,6 +39,11 @@ source="https://nginx.org/download/nginx-$pkgver.tar.gz
 builddir="$srcdir/nginx-$pkgver"
 options="!check" # no time!
 
+export CC=clang
+export CFLAGS="$CFLAGS -flto"
+# passed below
+export LDFLAGS="$LDFLAGS -flto -fuse-ld=lld -Wl,--icf=all"
+
 _modules_dir="usr/lib/nginx/modules"
 
 # Built-in dynamic modules
@@ -95,7 +102,7 @@ build() {
 		--group=$_grp_ngx \
 		--with-threads \
 		--with-file-aio \
-		--with-ld-opt="-lmagic" \
+		--with-ld-opt="-lmagic $LDFLAGS" \
 		\
 		--with-http_ssl_module \
 		--with-http_v2_module \