From dc1e9165cdee8ddea73d29e92757db4af0dbfb5f Mon Sep 17 00:00:00 2001
From: Simon Hudon <simon@bluerock.io>
Date: Mon, 31 Aug 2026 15:45:45 -0400
Subject: [PATCH 1/2] clang version check: we only support LLVM 22 now

---
 dev/check_ver/clang.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/dev/check_ver/clang.sh b/dev/check_ver/clang.sh
index e9e0c9c6..1ca046b6 100755
--- a/dev/check_ver/clang.sh
+++ b/dev/check_ver/clang.sh
@@ -5,9 +5,9 @@
 
 PROG="clang"
 URL="https://apt.llvm.org"
-MIN="18.0.0"
+MIN="22.0.0"
 FIRST_UNSUPPORTED="22.0.0"
-RECOMMENDED="19.*.*"
+RECOMMENDED="22.*.*"
 
 print_ver() {
   VER="$(clang --version | grep "clang version" | sed -r 's/^.*clang version ([0-9.]+).*$/\1/')"

From 5488667f8db1f9b546ac1ffddf695efb7c8275f9 Mon Sep 17 00:00:00 2001
From: Simon Hudon <simon@bluerock.io>
Date: Mon, 31 Aug 2026 16:36:28 -0400
Subject: [PATCH 2/2] clang version: add stricter requirements when building
 full workspace

---
 Makefile               |  2 +-
 dev/check_ver/clang.sh | 11 ++++++++---
 dev/rules.mk           |  8 ++++++--
 3 files changed, 15 insertions(+), 6 deletions(-)

diff --git a/Makefile b/Makefile
index cc6cf546..eed96382 100644
--- a/Makefile
+++ b/Makefile
@@ -26,7 +26,7 @@ ide-prepare:
 		${CPP2V}
 
 .PHONY: stage1
-stage1: ide-prepare ast-prepare-bluerock
+stage1: dev-check-ver-full-workspace ide-prepare ast-prepare-bluerock
 
 .PHONY: pipeline-deps
 pipeline-deps:
diff --git a/dev/check_ver/clang.sh b/dev/check_ver/clang.sh
index 1ca046b6..3384cdeb 100755
--- a/dev/check_ver/clang.sh
+++ b/dev/check_ver/clang.sh
@@ -5,9 +5,14 @@
 
 PROG="clang"
 URL="https://apt.llvm.org"
-MIN="22.0.0"
-FIRST_UNSUPPORTED="22.0.0"
-RECOMMENDED="22.*.*"
+FIRST_UNSUPPORTED="23.0.0"
+if [[ $# -gt 0 ]] && [[ "$1" -eq "--full-workspace" ]]; then
+  MIN="22.0.0"
+  RECOMMENDED="22.*.*"
+else
+  MIN="18.0.0"
+  RECOMMENDED="19.*.*"
+fi
 
 print_ver() {
   VER="$(clang --version | grep "clang version" | sed -r 's/^.*clang version ([0-9.]+).*$/\1/')"
diff --git a/dev/rules.mk b/dev/rules.mk
index 091da256..54e17c14 100644
--- a/dev/rules.mk
+++ b/dev/rules.mk
@@ -2,16 +2,20 @@
 
 define check_ver_target
 DEV_CHECK_VER_TARGETS += dev-check-ver-$1
-.PHONY: dev-check-ver-$1
+.PHONY: dev-check-ver-$1 dev-check-ver-$1-full-workspace
 dev-check-ver-$1: dev/check_ver/$1.sh
 	$$(Q)./$$<
 endef
 
+dev-check-ver-clang-full-workspace: dev/check_ver/clang.sh
+	$$(Q)./$$< --full-workspace
+
 DEV_PROGS = make clang opam rust uv bash
 $(foreach prog,$(DEV_PROGS),$(eval $(call check_ver_target,$(prog))))
 
 .PHONY: dev-check-ver
 dev-check-ver: $(DEV_CHECK_VER_TARGETS) dev-check-ver-sed
+dev-check-ver-full-workspace: dev-check-ver dev-check-ver-clang-full-workspace
 
 .PHONY: dev-check-ver-sed
 # Reject systems where `sed` is not GNU `sed` and `gsed` is not available.
@@ -22,7 +26,7 @@ dev-check-ver-sed:
 
 # Setting up the development environment.
 
-.PHONY: dev-setup
+.PHONY: dev-setup dev-setup-full-workspace
 dev-setup: dev-check-ver dev-setup-opam
 
 .PHONY: dev-setup-opam