Add workflow check with clang c23

.github/workflows/build-c23-yaz.yaml

@@ -0,0 +1,27 @@
+# Build yaz from source with clang c23
+name: Build complete YAZ
+on: [push, pull_request]
+jobs:
+ build-complete:
+  runs-on: ubuntu-latest
+  steps:
+   - uses: actions/checkout@v4
+     with:
+      fetch-depth: 1
+   - name: Update packages
+     run: sudo apt update
+   - name: Install required and optional dependencies
+     run: >
+      sudo apt install autoconf automake libtool clang make bison
+      tclsh xsltproc docbook docbook-xml docbook-xsl
+      pkg-config libxslt1-dev libgnutls28-dev
+      libreadline-dev libwrap0-dev libicu-dev
+      libhiredis-dev libmemcached-dev
+   - name: Run buildconf
+     run: ./buildconf.sh
+   - name: Run configure
+     run: >
+      CC=clang CFLAGS="-std=c23" ./configure --enable-tcpd --with-xslt --with-gnutls --with-icu
+      --with-memcached --with-redis
+   - name: Run Make check
+     run: make -j4 check

.github/workflows/build-complete-yaz.yaml

@@ -1,4 +1,4 @@
-# Build yaz from source
+# Build yaz from source with gcc default + dist check
 name: Build complete YAZ
 on: [push, pull_request]
 jobs:

.github/workflows/build-minimal-yaz.yaml

@@ -1,4 +1,4 @@
-# Build minimal yaz from source
+# Build minimal yaz from source with gcc c89
 name: Build minimal YAZ
 on: [pull_request]
 jobs: