diff --git a/.github/workflows/compat.yml b/.github/workflows/compat.yml
new file mode 100644
index 0000000..962e5cc
--- /dev/null
+++ b/.github/workflows/compat.yml
@@ -0,0 +1,141 @@
+on: [push, pull_request]
+
+name: GNU findutils compatibility tests
+
+jobs:
+  gnu-tests:
+    name: Run GNU findutils tests
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout findutils
+      uses: actions/checkout@v2
+      with:
+        path: findutils
+    - name: Checkout GNU findutils
+      uses: actions/checkout@v2
+      with:
+        repository: gnu-mirror-unofficial/findutils
+        path: findutils.gnu
+        ref: 5768a03ddfb5e18b1682e339d6cdd24ff721c510
+        submodules: true
+    - uses: actions-rs/toolchain@v1
+      with:
+        profile: minimal
+        toolchain: stable
+        override: true
+    - name: Install dependencies
+      shell: bash
+      run: |
+        # Enable sources & install dependencies
+        sudo find /etc/apt/sources.list* -type f -exec sed -i 'p; s/^deb /deb-src /' '{}' +
+        sudo apt-get update
+        sudo apt-get build-dep findutils
+    - name: Run GNU tests
+      shell: bash
+      run: |
+        cd findutils
+        bash util/build-gnu.sh ||:
+    - name: Extract testing info
+      shell: bash
+      run: |
+        LOG_FILE=findutils.gnu/tests/test-suite.log
+        if test -f "$LOG_FILE"; then
+          TOTAL=$(sed -n "s/.*# TOTAL: \(.*\)/\1/p"  "$LOG_FILE"|tr -d '\r'|head -n1)
+          PASS=$(sed -n "s/.*# PASS: \(.*\)/\1/p" "$LOG_FILE"|tr -d '\r'|head -n1)
+          SKIP=$(sed -n "s/.*# SKIP: \(.*\)/\1/p" "$LOG_FILE"|tr -d '\r'|head -n1)
+          FAIL=$(sed -n "s/.*# FAIL: \(.*\)/\1/p" "$LOG_FILE"|tr -d '\r'|head -n1)
+          XPASS=$(sed -n "s/.*# XPASS: \(.*\)/\1/p" "$LOG_FILE"|tr -d '\r'|head -n1)
+          ERROR=$(sed -n "s/.*# ERROR: \(.*\)/\1/p" "$LOG_FILE"|tr -d '\r'|head -n1)
+          if [[ "$TOTAL" -eq 0 || "$TOTAL" -eq 1 ]]; then
+              echo "Error in the execution, failing early"
+              exit 1
+          fi
+          output="GNU tests summary = TOTAL: $TOTAL / PASS: $PASS / FAIL: $FAIL / ERROR: $ERROR"
+          echo "${output}"
+          if [[ "$FAIL" -gt 0 || "$ERROR" -gt 0 ]]; then echo "::warning ::${output}" ; fi
+          jq -n \
+                --arg date "$(date --rfc-email)" \
+                --arg sha "$GITHUB_SHA" \
+                --arg total "$TOTAL" \
+                --arg pass "$PASS" \
+                --arg skip "$SKIP" \
+                --arg fail "$FAIL" \
+                --arg xpass "$XPASS" \
+                --arg error "$ERROR" \
+                '{($date): { sha: $sha, total: $total, pass: $pass, skip: $skip, fail: $fail, xpass: $xpass, error: $error, }}' > gnu-result.json
+        else
+          echo "::error ::Failed to get summary of test results"
+        fi
+    - uses: actions/upload-artifact@v2
+      with:
+        name: gnu-test-report
+        path: findutils.gnu/tests/**/*.log
+    - uses: actions/upload-artifact@v2
+      with:
+        name: gnu-result
+        path: gnu-result.json
+
+  bfs-tests:
+    name: Run BFS tests
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout findutils
+      uses: actions/checkout@v2
+      with:
+        path: findutils
+    - name: Checkout BFS
+      uses: actions/checkout@v2
+      with:
+        repository: tavianator/bfs
+        path: bfs
+        ref: '2.3.1'
+    - uses: actions-rs/toolchain@v1
+      with:
+        profile: minimal
+        toolchain: stable
+        override: true
+    - name: Install dependencies
+      shell: bash
+      run: |
+        # Enable sources & install dependencies
+        sudo find /etc/apt/sources.list* -type f -exec sed -i 'p; s/^deb /deb-src /' '{}' +
+        sudo apt-get update
+        sudo apt-get build-dep bfs
+    - name: Run BFS tests
+      shell: bash
+      run: |
+        cd findutils
+        bash util/build-bfs.sh ||:
+    - name: Extract testing info
+      shell: bash
+      run: |
+        LOG_FILE=bfs/tests.log
+        if test -f "$LOG_FILE"; then
+          PASS=$(sed -n "s/^tests passed: \(.*\)/\1/p" "$LOG_FILE"|head -n1)
+          FAIL=$(sed -n "s/^tests failed: \(.*\)/\1/p" "$LOG_FILE"|head -n1)
+          TOTAL=$(($PASS + $FAIL))
+          if [[ "$TOTAL" -eq 0 || "$TOTAL" -eq 1 ]]; then
+              echo "Error in the execution, failing early"
+              exit 1
+          fi
+          output="BFS tests summary = TOTAL: $TOTAL / PASS: $PASS / FAIL: $FAIL"
+          echo "${output}"
+          if [[ "$FAIL" -gt 0 || "$ERROR" -gt 0 ]]; then echo "::warning ::${output}" ; fi
+          jq -n \
+                --arg date "$(date --rfc-email)" \
+                --arg sha "$GITHUB_SHA" \
+                --arg total "$TOTAL" \
+                --arg pass "$PASS" \
+                --arg fail "$FAIL" \
+                '{($date): { sha: $sha, total: $total, pass: $pass, fail: $fail, }}' > bfs-result.json
+        else
+          echo "::error ::Failed to get summary of test results"
+        fi
+    - uses: actions/upload-artifact@v2
+      with:
+        name: bfs-test-report
+        path: bfs/tests.log
+    - uses: actions/upload-artifact@v2
+      with:
+        name: bfs-result
+        path: bfs-result.json
diff --git a/util/build-bfs.sh b/util/build-bfs.sh
index 69aefff..4fe0e36 100644
--- a/util/build-bfs.sh
+++ b/util/build-bfs.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-set -e
+set -eo pipefail
 
 if ! test -d ../bfs; then
     echo "Could not find ../bfs"
@@ -20,4 +20,4 @@ if test "$#" -eq 0; then
     set -- --verbose --gnu
 fi
 
-./tests.sh --bfs="$FIND" "$@"
+./tests.sh --bfs="$FIND" "$@" | tee tests.log