Index: apertium/apertium-header.sh
--- apertium/apertium-header.sh.orig
+++ apertium/apertium-header.sh
@@ -129,7 +129,7 @@ apply_invert_setvars () {
 }
 
 setvar_wrap () {
-    gawk -v var="${AP_SETVAR}" '
+    awk -v var="${AP_SETVAR}" '
 BEGIN           { RS="\0|\n"; }
 NR==1    && var { printf "[<STREAMCMD:SETVAR:%s>]", var }
                 { printf "%s%s", $0, RT }
@@ -138,7 +138,7 @@ RT=="\0"        { fflush() }'
 }
 setvar_unwrap () {
     # Only strip SETVAR if *we* inserted it, allow keeping it if it was manually inserted (for debugs)
-    gawk -v var="${AP_SETVAR}" '
+    awk -v var="${AP_SETVAR}" '
 BEGIN           { RS="\0|\n"; }
             var { gsub(/\[<STREAMCMD:SETVAR:[^>]*>]/, "") }
                 { printf "%s%s", $0, RT }
@@ -176,15 +176,15 @@ test_zip () {
   fi
 }
 
-test_gawk () {
-  if ! command -v gawk &>/dev/null; then
-    echo "Error: Install 'gawk' in your system"
+test_awk () {
+  if ! command -v awk &>/dev/null; then
+    echo "Error: Install 'awk' in your system"
     exit 1
   fi
 }
 
 translate_latex() {
-  test_gawk
+  test_awk
 
   if [[ -z "$INFILE" || "$INFILE" = /dev/stdin ]]; then
     INFILE=$(mktemp "$TMPDIR/apertium.XXXXXXXX")
