Run groff with warnings enabled for "make lint".

Author: millert

configure

@@ -674,6 +674,7 @@ PYTHON
 FLEX
 YFLAGS
 YACC
+GROFFPROG
 TRPROG
 UNAMEPROG
 SHA1SUM
@@ -17601,6 +17602,53 @@ printf "%s\n" "no" >&6; }
 fi
 
 
+# Extract the first word of "groff", so it can be a program name with args.
+set dummy groff; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_GROFFPROG+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) case $GROFFPROG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_GROFFPROG="$GROFFPROG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_GROFFPROG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  test -z "$ac_cv_path_GROFFPROG" && ac_cv_path_GROFFPROG="groff"
+  ;;
+esac ;;
+esac
+fi
+GROFFPROG=$ac_cv_path_GROFFPROG
+if test -n "$GROFFPROG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $GROFFPROG" >&5
+printf "%s\n" "$GROFFPROG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for mandoc or nroff" >&5
 printf %s "checking for mandoc or nroff... " >&6; }
 if test ${ac_cv_path_NROFF+y}

configure.ac

@@ -1726,6 +1726,7 @@ dnl
 AC_PATH_PROG(SHA1SUM, [sha1sum], [openssl dgst -sha1])
 AC_PATH_PROG(UNAMEPROG, [uname], [uname])
 AC_PATH_PROG(TRPROG, [tr], [tr])
+AC_PATH_PROG(GROFFPROG, [groff], [groff])
 AC_CACHE_CHECK([for mandoc or nroff], [ac_cv_path_NROFF], [
     AC_PATH_PROGS_FEATURE_CHECK([NROFF], [mandoc nroff], [ac_cv_path_NROFF="$ac_path_NROFF"], [ac_cv_path_NROFF=no])
 ])

docs/Makefile.in

@@ -36,6 +36,7 @@ MANDOC = mandoc
 MANCOMPRESS = @MANCOMPRESS@
 MANCOMPRESSEXT = @MANCOMPRESSEXT@
 TR = @TRPROG@
+GROFF = @GROFFPROG@
 
 # Our install program supports extra flags...
 INSTALL = $(SHELL) $(scriptdir)/install-sh -c
@@ -126,6 +127,10 @@ lint: all
 	    for m in $(DOCS); do \
 		echo $(MANDOC) -Tlint -Wwarning $$m; \
 		$(MANDOC) -Tlint -Wwarning $$m || rval=`expr $$rval + $$?`; \
+		if [ -n "$(GROFF)" ]; then \
+		    echo $(GROFF) -mandoc -K utf8 -rF0 -rHY=0 -ww -b -z $$m; \
+		    $(GROFF) -mandoc -K utf8 -rF0 -rHY=0 -ww -b -z $$m || rval=`expr $$rval + $$?`; \
+		fi; \
 	    done; \
 	    exit $$rval; \
 	fi