diff --git a/.github/workflows/linux_thirdparty.yml b/.github/workflows/linux_thirdparty.yml
index 8ea362d..462daf8 100644
--- a/.github/workflows/linux_thirdparty.yml
+++ b/.github/workflows/linux_thirdparty.yml
@@ -60,6 +60,7 @@ jobs:
           - thirdparty: build_musl
           - thirdparty: build_nano
           - thirdparty: build_sdl
+          - thirdparty: build_zig
     steps:
       - name: Download artifact
         uses: actions/download-artifact@v4
diff --git a/scripts/linux_thirdparty.bash b/scripts/linux_thirdparty.bash
index a532304..2fbb1a2 100644
--- a/scripts/linux_thirdparty.bash
+++ b/scripts/linux_thirdparty.bash
@@ -105,7 +105,7 @@ test_metalang99() {
  github_tar hirrolot interface99 v1.0.1
  sh scripts/test-all.sh
  github_tar hirrolot metalang99 v1.13.3
- sh scripts/test.sh
+ sh scripts/test-all.sh
 }
 
 test_oniguruma_jq() {
@@ -153,7 +153,7 @@ test_perl() {
  export NO_NETWORK_TESTING=1
  ./Configure -des -Dcc="$CC" -Accflags=-fPIC -Alibs="-lpthread -ldl -lm -lcrypt -lutil -lc" \
    -Alibpth="/usr/local/lib /lib /usr/lib /lib64 /usr/lib64 /lib/x86_64-linux-gnu /usr/lib/x86_64-linux-gnu"
- make test -j4
+ make -j4 test_prep && HARNESS_OPTIONS=j4 make test_harness
 }
 
 test_php() {
@@ -278,6 +278,15 @@ build_sdl() {
  make
 }
 
+build_zig() {
+ github_clone fuhsnn zig wasm2c-stack
+ sed -i 's/stack-size=0x1000000/stack-size=0x4000000/g' bootstrap.c
+ cp lib/zig.h stage1/
+ "$CC" bootstrap.c -o _bootstrap
+ ./_bootstrap
+ ./zig2 test --show-builtin
+}
+
 # run a test
 
 if [[ $(type -t "$1") != function ]]; then