Texinfo 5.x breaks the build, so use older one.

bootstrap.sh

@@ -143,6 +143,7 @@ function unpack_sources {
   tar -xzf "${ARCHIVES}/${LIBAMIGA_SRC}"
   popd
 
+  unpack_clean "${TEXINFO}" "${TEXINFO_SRC}"
   unpack_clean "${BISON}" "${BISON_SRC}"
   unpack_clean "${GAWK}" "${GAWK_SRC}"
 
@@ -174,6 +175,13 @@ function build_tools {
 
   pushd "${BUILD_DIR}"
 
+  mkdir_empty "${TEXINFO}"
+  pushd "${TEXINFO}"
+  "${SOURCES}/${TEXINFO}/configure" \
+    --prefix="${HOST_DIR}"
+  ${MAKE} && make install
+  popd
+
   mkdir_empty "${GAWK}"
   pushd "${GAWK}"
   "${SOURCES}/${GAWK}/configure" \