diff --git a/.gitignore b/.gitignore
index 3ad5050..011f240 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,12 +4,12 @@ results/
 *.dll
 tmp/
 *.o
+*.bc
 regression.diffs
 regression.out
 /sql/semver--?.??.?.sql
 /semver-*
 /latest-changes.md
-/src/*.bc
 /semver_binary_copy.bin
 /.vscode
 /*.bin
diff --git a/Makefile b/Makefile
index 8777ed1..837d9ce 100644
--- a/Makefile
+++ b/Makefile
@@ -6,7 +6,9 @@ DISTVERSION  = $(shell grep -m 1 '[[:space:]]\{3\}"version":' META.json | \
                sed -e 's/[[:space:]]*"version":[[:space:]]*"\([^"]*\)",\{0,1\}/\1/')
 
 MODULEDIR    = $(EXTENSION)
-DATA         = $(wildcard sql/*.sql)
+DESCRIPTION  = A Postgres data type for the Semantic Version format with support for btree and hash indexing.
+REPO_URL     = https://github.com/theory/pg-semver
+DATA         = $(wildcard sql/*--*.sql) sql/$(EXTENSION)--$(EXTVERSION).sql
 DOCS         = $(wildcard doc/*.mmd)
 TESTS        = $(wildcard test/sql/*.sql)
 REGRESS      = $(patsubst test/sql/%.sql,%,$(TESTS))
@@ -22,6 +24,7 @@ endif
 
 PGXS := $(shell $(PG_CONFIG) --pgxs)
 include $(PGXS)
+include ./trunk.mk
 
 all: sql/$(EXTENSION)--$(EXTVERSION).sql
 
diff --git a/docker-compose.yml b/docker-compose.yml
new file mode 100644
index 0000000..323723e
--- /dev/null
+++ b/docker-compose.yml
@@ -0,0 +1,37 @@
+version: "3.9"
+name: trunking
+
+# Name the network for all of the services to join.
+networks:
+  default:
+    name: pgxnnet
+
+services:
+  zot:
+    image: ghcr.io/project-zot/zot-linux-arm64:latest
+    container_name: zot
+    ports:
+      - 5000:5000
+    hostname: zot
+
+  linux:
+    image: pgxn/pgxn-tools
+    platform: "linux/amd64"
+    container_name: linux
+    # stdin_open: true
+    # tty: true # Keep it running
+    working_dir: /work
+    volumes:
+      - ".:/work"
+    entrypoint:
+      - "/bin/sh"
+      - -ecx
+      - |
+          cd /tmp
+          curl -LO "https://github.com/oras-project/oras/releases/download/v1.2.0/oras_1.2.0_linux_amd64.tar.gz"
+          mkdir -p oras-install/
+          tar -zxf oras_1.2.0_*.tar.gz -C oras-install/
+          sudo mv oras-install/oras /usr/local/bin/
+          rm -rf oras_1.2.0_*.tar.gz oras-install/
+          pg-start 16 rsync jq
+          tail -f /dev/null
diff --git a/install_trunk b/install_trunk
new file mode 100755
index 0000000..1186036
--- /dev/null
+++ b/install_trunk
@@ -0,0 +1,155 @@
+#!/bin/bash
+
+# POC for installing Trunk format binaries created with trunk.mk. Requires:
+#
+# * bash
+# * tar
+# * shasum
+# * jq
+# * uname
+# * pg_config
+# * rsync
+
+trap 'exit' ERR
+set -E
+
+install_trunk() {
+    local trunk=$1
+
+    if [ -z "$trunk" ]; then
+        printf "Usage:\n\n  %s PACKAGE_PATH\n" "$0"
+        exit 1
+    fi
+
+    # Determine the platform.
+    local my_os my_osv my_arch platform
+    my_os=$(uname | tr '[:upper:]' '[:lower:]')
+    my_osv=$(uname -r)
+    my_arch="$(uname -m)"
+    if [ "$my_arch" == "x86_64" ]; then my_arch=amd64; fi
+    if [ "$my_os" == "darwin" ]; then
+        platform="$my_os/$my_arch:$my_osv"
+    else
+        platform="$my_os/$my_arch"
+    fi
+
+    # Fetch the file name.
+    local file
+    file=$(oras manifest fetch --plain-http --platform "$platform" "$trunk" | jq -r '.layers[0].annotations["org.opencontainers.image.title"]')
+
+    # Download.
+    oras pull --no-tty --plain-http --platform "$platform" "$trunk"
+
+    # Unpack.
+    printf "Unpacking %s\n" "$file"
+    tar zxf "$file"
+
+    # Go into the directory
+    local dir="${file%.*}"
+    cd "$dir" || exit
+
+    # Verify the checksums.
+    printf "Verifying all checksums..."
+    shasum --check -b --strict < digests
+    printf "Done!\n"
+
+    # Verify the Trunk version
+    printf "Verifying compatibility with Trunk package 0.1.0\n" 
+    local tv
+    tv=$(jq -r .trunk trunk.json)
+    if [ "$tv" != "0.1.0" ]; then
+        printf "Unsupported Trunk format version %s\n" "$tv"
+        exit 1
+    fi
+
+    # Verify the Postgres version.
+    printf "Verifying compatibility with PostgreSQL %s\n" "$my_pg"
+    local pkg_pg my_pg
+    pkg_pg=$(jq -r .postgres.version trunk.json)
+    my_pg=$(pg_config --version | sed -E 's/^[^ ]+ ([^ ]+).*$/\1/')
+    if [ "$pkg_pg" != "$my_pg" ]; then
+        printf "Trunk package contains binaries for Postgres %s but this host runs Postgres %s\n" "$pkg_pg" "$my_pg"
+        exit 1
+    fi
+
+    printf "Verifying compatibility with %s/%s:%s \n" "$my_os" "$my_arch" "$my_osv"
+    local pkg_os
+    pkg_os=$(jq -r .platform.os trunk.json)
+    if [ "$pkg_os" != "any" ]; then
+        # Verify the OS
+        if [ "$pkg_os" != "$my_os" ]; then
+            printf "Trunk package contains %s binaries but this host runs %s\n" "$pkg_os" "$my_os"
+            exit 1
+        fi
+
+        # Verify the architecture.
+        local pkg_arch
+        pkg_arch=$(jq -r .platform.arch trunk.json)
+        if [ "$pkg_arch" != "$my_arch" ]; then
+            printf "Trunk package contains %s binaries but this host runs %s\n" "$pkg_arch" "$my_arch"
+            exit 1
+        fi
+    fi
+    
+    # Make sure we have install directories.
+    if [ ! -d 'install' ]; then
+        printf "Package contains no install files; exiting\n"
+        exit 1
+    fi
+
+    cd 'install' || exit
+    for subdir in *; do
+        [[ -d "$subdir" ]] || continue
+        case $subdir in
+            share)
+                install_dir "$subdir" "$(pg_config --sharedir)"
+                ;;
+            pkglib)
+                install_dir "$subdir" "$(pg_config --pkglibdir)"
+                ;;
+            pkginclude)
+                install_dir "$subdir" "$(pg_config --pkgincludedir)"
+                ;;
+            lib)
+                install_dir "$subdir" "$(pg_config --libdir)"
+                ;;
+            include)
+                install_dir "$subdir" "$(pg_config --includedir)"
+                ;;
+            bin)
+                install_dir "$subdir" "$(pg_config --bindir)"
+                ;;
+            doc)
+                install_dir "$subdir" "$(pg_config --docdir)"
+                ;;
+            man)
+                install_dir "$subdir" "$(pg_config --mandir)"
+                ;;
+            html)
+                install_dir "$subdir" "$(pg_config --htmldir)"
+                ;;
+            locale)
+                install_dir "$subdir" "$(pg_config --localedir)"
+                ;;
+            sysconf)
+                install_dir "$subdir" "$(pg_config --sysconfdir)"
+                ;;
+            *)
+                printf "Unknown install directory %s; skipping\n" "$subdir"
+                ;;
+        esac
+    done
+
+}
+
+install_dir() {
+    local src="$1"
+    local dst="$2"
+    printf "Installing %s into %s..." "$src" "$dst"
+    cd "$src" || exit
+    rsync -q -a -v . "$dst" || exit
+    printf "Done\n"
+    cd ..
+}
+
+install_trunk "$@"
diff --git a/push_trunk b/push_trunk
new file mode 100755
index 0000000..cd5d993
--- /dev/null
+++ b/push_trunk
@@ -0,0 +1,96 @@
+#!/bin/bash
+
+# POC for publishing Trunk packages to an OCI repository with an image index
+# to allow pulling a platform-specific binary. Requires:
+#
+# * oras
+# * jq
+# * zot: docker run -d -p 5000:5000 --name oras-quickstart ghcr.io/project-zot/zot-linux-arm64:latest
+#
+# Inspired by the Homebrew implementation of the pattern as referenced in
+# https://github.com/oras-project/oras/issues/237, and with thanks to the
+# denizens of the #oras and #zot channels on the CNCF Slack.
+
+set -e
+
+# Onlyl testing semver for Darwin and Linux rn.
+REPO=localhost:5000/theory/semver
+LINUX_AMD64_TRUNK=semver-0.32.1+pg16-linux-amd64
+DARWIN_ARM64_TRUNK=semver-0.32.1+pg16-darwin-arm64-23.5.0
+
+# OCI types to create.
+ARTIFACT_TYPE=application/vnd.pgxn.trunk.layer.v1
+MEDIA_TYPE=application/vnd.oci.image.layer.v1.tar+gzip
+CONFIG_TYPE=application/vnd.oci.image.config.v1+json
+OCI_DIR=oci_dir
+INDEX_FILE=image_index.json
+
+# Push the Darwin image and grab the resulting digest.
+DIGEST_DARWIN_ARM64=$(oras push --no-tty \
+  --oci-layout "$OCI_DIR" \
+  --artifact-type "${ARTIFACT_TYPE}" \
+  --config "${DARWIN_ARM64_TRUNK}_config.json":"$CONFIG_TYPE" \
+  --format go-template='{{.digest}}' \
+  --annotation-file "${DARWIN_ARM64_TRUNK}_annotations.json" \
+  "$DARWIN_ARM64_TRUNK.trunk":"$MEDIA_TYPE"
+)
+
+# Push the Linux image and grab the resulting digest.
+DIGEST_LINUX_AMD64=$(oras push --no-tty \
+  --oci-layout "$OCI_DIR" \
+  --artifact-type "${ARTIFACT_TYPE}" \
+  --config "${LINUX_AMD64_TRUNK}_config.json":"$CONFIG_TYPE" \
+  --format go-template='{{.digest}}' \
+  --annotation-file "${LINUX_AMD64_TRUNK}_annotations.json" \
+  "$LINUX_AMD64_TRUNK.trunk":"$MEDIA_TYPE"
+)
+
+
+# Create the image manifest for Darwin.
+trunk_anno=$(jq -c '.["$manifest"] | with_entries(select(.key | startswith("org.pgxn.trunk.")))' "${DARWIN_ARM64_TRUNK}_annotations.json")
+DARWIN_ARM64_MANIFEST=$(oras manifest fetch --oci-layout "$OCI_DIR@${DIGEST_DARWIN_ARM64}" --pretty --descriptor | jq --argjson anno "$trunk_anno" '{
+  mediaType: .mediaType,
+  size: .size,
+  digest: .digest,
+  platform: {
+    architecture: "arm64",
+    os: "darwin",
+    "os.version": "23.5.0"
+  },
+  annotations: $anno
+}')
+
+# Create the image manifest for Linux.
+trunk_anno=$(jq -c '.["$manifest"] | with_entries(select(.key | startswith("org.pgxn.trunk.")))' "${LINUX_AMD64_TRUNK}_annotations.json")
+LINUX_AMD64_MANIFEST=$(oras manifest fetch --oci-layout "$OCI_DIR@${DIGEST_LINUX_AMD64}" --pretty --descriptor | jq --argjson anno "$trunk_anno"  '{
+  mediaType: .mediaType,
+  size: .size,
+  digest: .digest,
+  platform: {
+    architecture: "amd64",
+    os: "linux"
+  },
+  annotations: $anno
+}')
+
+# Write out the resulting image index.
+jq -n --argjson amd64 "$LINUX_AMD64_MANIFEST" --argjson arm64 "$DARWIN_ARM64_MANIFEST" --argjson annotations "$(cat semver_annotations.json)" '{
+  schemaVersion: 2,
+  mediaType: "application/vnd.oci.image.index.v1+json",
+  manifests: [$amd64, $arm64],
+  annotations: $annotations
+}' > "$INDEX_FILE"
+
+# Push the image index to the registry
+oras manifest push --oci-layout ./"$OCI_DIR":image-index "$INDEX_FILE"
+
+# View the local manifest
+#oras manifest get --pretty --oci-layout ./"$OCI_DIR":image-index
+
+# Push the index and artifacts to the registry
+oras cp --from-oci-layout ./"$OCI_DIR":image-index --to-plain-http "${REPO}:v1"
+
+# View the remote image index manifest.
+oras manifest get --plain-http "${REPO}:v1" | jq
+
+rm -rf "$OCI_DIR" "$INDEX_FILE"
diff --git a/trunk.mk b/trunk.mk
new file mode 100644
index 0000000..7057243
--- /dev/null
+++ b/trunk.mk
@@ -0,0 +1,290 @@
+# Trunk packaging. To use, create a standard PGXS Makefile for your extension.
+# The only extra variables are DISTVERSION, TITLE, DESCRIPTION, LICENSE,
+# LANGUAGE, VENDOR, URL, and REPO_URL.
+#
+# ``` make
+# DISTVERSION  = 1.2.1
+# LICENSE      = mit
+# LANGUAGE     = c
+# TITLE        = Bike
+# DESCRIPTION  = A bicycle inside your database.
+#
+# EXTENSION    = bike
+# MODULEDIR    = $(EXTENSION)
+# DATA         = $(wildcard sql/*.sql)
+# DOCS         = $(wildcard doc/*.mmd)
+# MODULES      = $(patsubst %.c,%,$(wildcard src/*.c))
+# PG_CONFIG   ?= pg_config
+#
+# PGXS := $(shell $(PG_CONFIG) --pgxs)
+# include $(PGXS)
+# include ./trunk.mk
+# ```
+#
+# Then build it:
+# 
+# ``` sh
+# make trunk BUILD_TAG=2
+# ```
+#
+# This will create a file with a name similar to
+#
+# bike-1.2.1+2-c-pg16-darwin_aarch64.trunk
+#
+# Requires:
+#
+# * pg_config
+# * PGXS (from `pg_config --pgxs`)
+# * tar
+# * shasum
+# * jq
+
+LAUNGUAGE      ?= c
+LICENSE        ?= PostgreSQL
+TITLE          ?= $(EXTENSION)
+VENDOR         ?= PGXN
+URL            ?= $(REPO_URL)
+
+pkg_arch       := $(shell uname -m)
+ifeq ($(pkg_arch),x86_64)
+pkg_arch       := amd64
+endif
+ifeq ($(PORTNAME),darwin)
+pkg_os_ver     := $(shell uname -r)
+pkg            := $(EXTENSION)-$(DISTVERSION)+pg$(MAJORVERSION)-$(PORTNAME)-$(pkg_arch)-$(pkg_os_ver)
+else
+pkg            := $(EXTENSION)-$(DISTVERSION)+pg$(MAJORVERSION)-$(PORTNAME)-$(pkg_arch)
+endif
+pkg_dir 	   := $(pkg)
+pkg_installdir := $(pkg_dir)/install
+pkg_sharedir   := $(pkg_installdir)/share
+pkg_libdir     := $(pkg_installdir)/lib
+pkg_pkglibdir  := $(pkg_installdir)/pkglib
+pkg_docdir     := $(pkg_installdir)/doc/$(docmoduledir)
+pkg_bindir     := $(pkg_installdir)/bin
+pkg_incdir     := $(pkg_installdir)/include/server/$(docmoduledir)
+ifdef SO_MAJOR_VERSION
+pkg_pkgconfigdir = $(pkg_libdir)/pkgconfig
+endif
+pkg_info_files ?= $(wildcard README* readme* Readme* LICENSE* license* License* CHANGE* change* Change*)
+EXTRA_CLEAN    += $(EXTENSION)-$(DISTVERSION)+*/
+
+# Phony target to create the trunk and OCI JSON files.
+trunk: $(pkg).trunk $(pkg)_config.json $(pkg)_annotations.json $(EXTENSION)_annotations.json
+
+# Use jq to create the OCI image index annoations.
+# https://github.com/opencontainers/image-spec/blob/main/annotations.md
+$(EXTENSION)_annotations.json:
+	jq -n \
+	    --arg org.opencontainers.image.created "$$(date +%Y-%m-%dT%TZ)" \
+		--arg org.opencontainers.image.licenses "$(LICENSE)" \
+		--arg org.opencontainers.image.title "$(TITLE)" \
+		--arg org.opencontainers.image.description "$(DESCRIPTION)" \
+		--arg org.opencontainers.image.source "$(REPO_URL)" \
+		--arg org.opencontainers.image.vendor "$(VENDOR)" \
+		--arg org.opencontainers.image.ref.name "$(DISTVERSION)" \
+		--arg org.opencontainers.image.version "$(DISTVERSION)" \
+		--arg org.opencontainers.image.url "$(URL)" \
+		'$$ARGS.named | with_entries(select(.value |. !=null and . != ""))' > $@
+
+# Use jq to create the OCI image configuration.
+$(pkg)_config.json:
+	@jq -n \
+		--arg os "$(PORTNAME)" \
+		--arg os.version "$(pkg_os_ver)" \
+		--arg architecture "$(pkg_arch)" \
+		--arg created "$$(date +%Y-%m-%dT%TZ)" \
+		'$$ARGS.named | with_entries(select(.value |. !=null and . != ""))' > $@
+
+# Use jq to create the OCI image manifest annotations.
+$(pkg)_annotations.json: $(pkg).trunk $(pkg)_config.json
+	@anno=$$(jq -n \
+	    --arg org.opencontainers.image.created "$$(date +%Y-%m-%dT%TZ)" \
+		--arg org.opencontainers.image.title "$(pkg).trunk" \
+		--arg org.opencontainers.image.licenses "$(LICENSE)" \
+		--arg org.opencontainers.image.description "$(DESCRIPTION)" \
+		--arg org.opencontainers.image.source "$(REPO_URL)" \
+		--arg org.opencontainers.image.vendor "$(VENDOR)" \
+		--arg org.opencontainers.image.ref.name "$(DISTVERSION)" \
+		--arg org.opencontainers.image.version "$(DISTVERSION)" \
+		--arg org.opencontainers.image.url "$(URL)" \
+		--arg org.pgxn.trunk.pg.version "$(VERSION)" \
+		--arg org.pgxn.trunk.pg.major "$(MAJORVERSION)" \
+		--arg org.pgxn.trunk.pg.version_num "$(VERSION_NUM)" \
+		--arg org.pgxn.trunk.version "0.1.0" \
+		'$$ARGS.named | with_entries(select(.value |. !=null and . != ""))' \
+	) && jq -n \
+		--argjson '$$manifest' "$$anno" \
+		'$$ARGS.named' > $@
+
+$(pkg).trunk: package
+	tar zcvf $@ $(pkg_dir)
+
+# Use jq to build trunk.json. XXX Add dependencies
+$(pkg_dir)/trunk.json: pkg_dirs
+	@pg=$$(jq -n \
+		--arg version "$(VERSION)" \
+		--arg major "$(MAJORVERSION)" \
+		--argjson number "$(VERSION_NUM)" \
+		--arg libs "$(LIBS)" \
+		--arg cppflags "$(CPPFLAGS)" \
+		--arg cflags "$(CFLAGS)" \
+		--arg ldflags "$(LDFLAGS)" \
+		'$$ARGS.named' \
+	) && pkg=$$(jq -n \
+		--arg name "$(EXTENSION)" \
+		--arg version $(DISTVERSION) \
+		--arg language "$(LAUNGUAGE)" \
+		--arg license "$(LICENSE)" \
+		'$$ARGS.named' \
+	) && plat=$$(jq -n \
+		--arg os "$(PORTNAME)" \
+		--arg version "$(pkg_os_ver)" \
+		--arg arch $(pkg_arch) \
+		'$$ARGS.named | with_entries(select(.value |. !=null and . != ""))' \
+	) && jq -n \
+		--arg trunk 0.1.0 \
+		--argjson package "$$pkg" \
+		--argjson postgres "$$pg" \
+		--argjson platform "$$plat" \
+		'$$ARGS.named' > $@
+
+
+# Based on install in https://github.com/postgres/postgres/blob/REL_17_BETA1/src/makefiles/pgxs.mk#L237C1-L276
+package: all pkg_dirs $(pkg_dir)/trunk.json
+ifneq (,$(EXTENSION))
+	$(INSTALL_DATA) $(addprefix $(srcdir)/, $(addsuffix .control, $(EXTENSION))) '$(pkg_sharedir)/extension/'
+endif # EXTENSION
+ifneq (,$(DATA)$(DATA_built))
+	$(INSTALL_DATA) $(addprefix $(srcdir)/, $(DATA)) $(DATA_built) '$(pkg_sharedir)/$(datamoduledir)/'
+endif # DATA
+ifneq (,$(DATA_TSEARCH))
+	$(INSTALL_DATA) $(addprefix $(srcdir)/, $(DATA_TSEARCH)) '$(pkg_sharedir)/tsearch_data/'
+endif # DATA_TSEARCH
+ifdef MODULES
+	$(INSTALL_SHLIB) $(addsuffix $(DLSUFFIX), $(MODULES)) '$(pkg_pkglibdir)/'
+ifeq ($(with_llvm), yes)
+	$(foreach mod, $(MODULES), $(call package_llvm_module,$(mod),$(mod).bc))
+endif # with_llvm
+endif # MODULES
+ifdef DOCS
+ifdef docdir
+	$(INSTALL_DATA) $(addprefix $(srcdir)/, $(DOCS)) '$(pkg_docdir)/'
+endif # docdir
+endif # DOCS
+ifdef PROGRAM
+	$(INSTALL_PROGRAM) $(PROGRAM)$(X) '$(pkg_bindir)'
+endif # PROGRAM
+ifdef SCRIPTS
+	$(INSTALL_SCRIPT) $(addprefix $(srcdir)/, $(SCRIPTS)) '$(pkg_bindir)/'
+endif # SCRIPTS
+ifdef SCRIPTS_built
+	$(INSTALL_SCRIPT) $(SCRIPTS_built) '$(pkg_bindir)/'
+endif # SCRIPTS_built
+ifneq (,$(strip $(HEADER_dirs)))
+	$(foreach dir,$(HEADER_dirs),$(call package_headers,$(dir),$(HEADER_files_$(dir))))
+endif # HEADERS
+ifdef MODULE_big
+ifeq ($(with_llvm), yes)
+	$(call package_llvm_module,$(MODULE_big),$(OBJS))
+endif # with_llvm
+package: package-lib
+endif # MODULE_big
+ifneq (,$(pkg_info_files))
+	$(INSTALL_DATA) $(addprefix $(srcdir)/, $(pkg_info_files)) '$(pkg_dir)/'
+endif
+	rm -f "$(pkg_dir)/digests"
+	cd "$(pkg_dir)/" && find * -type f | xargs shasum --tag -ba 256 > digests
+
+# Based on installdirs in https://github.com/postgres/postgres/blob/REL_17_BETA1/src/makefiles/pgxs.mk#L279C1-L303
+pkg_dirs:
+ifneq (,$(EXTENSION))
+	$(MKDIR_P) '$(pkg_sharedir)/extension'
+endif
+ifneq (,$(DATA)$(DATA_built))
+	$(MKDIR_P) '$(pkg_sharedir)/$(datamoduledir)'
+endif
+ifneq (,$(DATA_TSEARCH))
+	$(MKDIR_P) '$(pkg_sharedir)/tsearch_data'
+endif
+ifneq (,$(MODULES))
+	$(MKDIR_P) '$(pkg_pkglibdir)'
+endif
+ifdef DOCS
+	$(MKDIR_P) '$(pkg_docdir)'
+endif
+ifneq (,$(PROGRAM)$(SCRIPTS)$(SCRIPTS_built))
+	$(MKDIR_P) '$(pkg_bindir)'
+endif
+ifdef MODULE_big
+pkg_dirs: pkg_dirs-lib
+endif # MODULE_big
+
+
+# Based on https://github.com/postgres/postgres/blob/REL_17_BETA1/src/Makefile.shlib#L364-L399.
+.PHONY: package-lib package-lib-static package-lib-shared installdirs-lib
+package-lib: package-lib-shared
+ifdef soname
+package-lib: package-lib-static
+package-lib: package-lib-pc
+endif
+
+package-lib-pc: lib$(NAME).pc installdirs-lib
+	$(INSTALL_DATA) $< '$(pkg_pkgconfigdir)/lib$(NAME).pc'
+
+package-lib-static: $(stlib) installdirs-lib
+	$(INSTALL_STLIB) $< '$(pkg_libdir)/$(stlib)'
+
+package-lib-shared: $(shlib) installdirs-lib
+ifdef soname
+# we don't install $(shlib) on AIX
+# (see http://archives.postgresql.org/message-id/52EF20B2E3209443BC37736D00C3C1380A6E79FE@EXADV1.host.magwien.gv.at)
+ifneq ($(PORTNAME), aix)
+	$(INSTALL_SHLIB) $< '$(pkg_libdir)/$(shlib)'
+ifneq ($(PORTNAME), cygwin)
+ifneq ($(PORTNAME), win32)
+ifneq ($(shlib), $(shlib_major))
+	cd '$(pkg_libdir)' && \
+	rm -f $(shlib_major) && \
+	$(LN_S) $(shlib) $(shlib_major)
+endif
+ifneq ($(shlib), $(shlib_bare))
+	cd '$(pkg_libdir)' && \
+	rm -f $(shlib_bare) && \
+	$(LN_S) $(shlib) $(shlib_bare)
+endif
+endif # not win32
+endif # not cygwin
+endif # not aix
+ifneq (,$(findstring $(PORTNAME),win32 cygwin))
+	$(INSTALL_SHLIB) $< '$(DESTDIR)$(bindir)/$(shlib)'
+endif
+else # no soname
+	$(INSTALL_SHLIB) $< '$(DESTDIR)$(pkglibdir)/$(shlib)'
+endif
+
+
+# Based on installdirs-lib in https://github.com/postgres/postgres/blob/REL_17_BETA1/src/Makefile.shlib#L402-L407.
+pkg_dirs-lib:
+ifdef soname
+	$(MKDIR_P) '$(pkg_libdir)' '$(pkg_pkgconfigdir)' $(if $(findstring $(PORTNAME),win32 cygwin),'$(pkg_bindir)')
+else
+	$(MKDIR_P) '$(pkg_pkgconfigdir)'
+endif
+
+
+# Based on install_llvm_module in https://github.com/postgres/postgres/blob/REL_17_BETA1/src/Makefile.global.in#L1090-L1107.
+define package_llvm_module
+$(MKDIR_P) '$(DESTDIR)${bitcodedir}/$(1)'
+$(MKDIR_P) $(sort $(dir $(addprefix '$(pkg_pkglibdir)/bitcode'/$(1)/, $(2))))
+$(foreach obj, ${2}, $(INSTALL_DATA) $(patsubst %.o,%.bc, $(obj)) '$(pkg_pkglibdir)/bitcode'/$(1)/$(dir $(obj))
+)
+cd '$(pkg_pkglibdir)/bitcode' && $(LLVM_BINPATH)/llvm-lto -thinlto -thinlto-action=thinlink -o $(1).index.bc $(addprefix $(1)/,$(patsubst %.o,%.bc, $(2)))
+endef
+
+
+# Based on install_headers in https://github.com/postgres/postgres/blob/REL_17_BETA1/src/makefiles/pgxs.mk#L202-L207
+define package_headers
+$(MKDIR_P) '$(pkg_incdir)/$(1)/'
+$(INSTALL_DATA) $(2) '$(pkg_incdir)/$(1)/'
+endef