diff --git a/.gitlab-ci/meson/libstdc++.native b/.gitlab-ci/meson/libstdc++.native
new file mode 100644
index 0000000..3116043
--- /dev/null
+++ b/.gitlab-ci/meson/libstdc++.native
@@ -0,0 +1,3 @@
+[built-in options]
+cpp_args = ['-stdlib=libstdc++']
+cpp_link_args = ['-stdlib=libstdc++']
diff --git a/gitlab-ci.yml b/gitlab-ci.yml
index 6256335..6ff88b2 100644
--- a/gitlab-ci.yml
+++ b/gitlab-ci.yml
@@ -29,7 +29,12 @@ variables:
   # clang fails to link with ASan if --no-undefined is enabled.
   MESON_CLANG_OPTIONS: >-
     -D b_lundef=false
+  MESON_CLANG_LIBCPP_OPTIONS: >-
+    ${MESON_CLANG_OPTIONS}
     --native-file $CI_PROJECT_DIR/.gitlab-ci/meson/libc++.native
+  MESON_CLANG_LIBSTDCPP_OPTIONS: >-
+    ${MESON_CLANG_OPTIONS}
+    --native-file $CI_PROJECT_DIR/.gitlab-ci/meson/libstdc++.native
   PACKAGES: >-
     ca-certificates
     git
@@ -199,7 +204,7 @@ build-full:debian:12:
         CXX: clang++
         MESON_OPTIONS: >-
           ${MESON_ALL_OPTIONS}
-          ${MESON_CLANG_OPTIONS}
+          ${MESON_CLANG_LIBCPP_OPTIONS}
           -D qcam=disabled
       - ARCH: amd64
         BUILD_TYPE: release
@@ -207,7 +212,7 @@ build-full:debian:12:
         CXX: clang++
         MESON_OPTIONS: >-
           ${MESON_ALL_OPTIONS}
-          ${MESON_CLANG_OPTIONS}
+          ${MESON_CLANG_LIBCPP_OPTIONS}
           -D qcam=disabled

 build-full:debian:12:as-subproject:
@@ -256,13 +261,11 @@ build-full:debian:13:
       - ARCH: amd64
         CC: clang
         CXX: clang++
-        MESON_OPTIONS: >-
-          ${MESON_ALL_OPTIONS}
-          ${MESON_CLANG_OPTIONS}
-          -D qcam=disabled
-          -D cpp_debugstl=false
-        # `cpp_debugstl=false` needed approximately between meson 1.4.0 and 1.9.3
-        # with clang 18 or later due to https://github.com/mesonbuild/meson/issues/13812
+        MESON_OPTIONS:
+          # `cpp_debugstl=false` needed approximately between meson 1.4.0 and 1.9.3
+          # with clang 18 or later due to https://github.com/mesonbuild/meson/issues/13812
+          - ${MESON_ALL_OPTIONS} ${MESON_CLANG_LIBCPP_OPTIONS} -D qcam=disabled -D cpp_debugstl=false
+          - ${MESON_ALL_OPTIONS} ${MESON_CLANG_LIBSTDCPP_OPTIONS}
       - ARCH: armhf
       - ARCH: arm64