diff --git a/.github/workflows/bigendian.yml b/.github/workflows/bigendian.yml
new file mode 100644
index 00000000..325a85fd
--- /dev/null
+++ b/.github/workflows/bigendian.yml
@@ -0,0 +1,27 @@
+name: Test Big Endian.
+
+on: [push, pull_request]
+
+jobs:
+  one:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Setup multiarch/qemu-user-static
+      run: |
+        docker run --rm --privileged multiarch/qemu-user-static:register --reset
+    - name: ubuntu-core:s390x-focal
+      uses: docker://multiarch/ubuntu-core:s390x-focal
+      with:
+        args: >
+          bash -c
+          "
+          apt-get update -y && 
+          DEBIAN_FRONTEND=noninteractive TZ=Etc/UTC apt-get -y install tzdata &&
+          apt-get install -y automake libtool make gcc pkg-config bison git &&
+          git clone https://github.com/VirusTotal/yara &&
+          cd yara &&
+          ./bootstrap.sh &&
+          ./configure --disable-proc-scan &&
+          make &&
+          make check
+          "
\ No newline at end of file
diff --git a/configure.ac b/configure.ac
index f13c31de..88cf44d3 100644
--- a/configure.ac
+++ b/configure.ac
@@ -42,7 +42,19 @@ case $host_alias in
      i?86-*-mingw*) CFLAGS="$CFLAGS -D__MINGW_USE_VC2005_COMPAT" ;;
 esac
 
-case $host_os in
+AC_ARG_ENABLE([proc-scan],
+  [AS_HELP_STRING([--disable-proc-scan], [disable process scanning])],
+  [if test x$enableval = xyes; then
+    AC_MSG_ERROR([
+*****************************************************************
+  Process scanning is enabled by default, remove --enable-proc-scan.
+*****************************************************************
+])
+  else
+    proc_interface=none
+    CFLAGS="$CFLAGS -DUSE_NO_PROC"
+  fi],
+  [case $host_os in
     darwin*) CFLAGS="$CFLAGS -I/opt/local/include"
              # Starting with Mac OS X 10.11 (El Capitan) the OpenSSL headers
              # are in /usr/local/opt/openssl/include
@@ -74,7 +86,9 @@ case $host_os in
             CFLAGS="$CFLAGS -DUSE_NO_PROC"
             proc_interface=none
             jemalloc_prefix= ;;
-esac
+  esac])
+
+
 
 ACX_PTHREAD(
     [LIBS="$PTHREAD_LIBS $LIBS"