From 345950ac1b15595edc73ff5ea126cd2b1f9ff627 Mon Sep 17 00:00:00 2001
From: Kurtis Rader <krader@skepticism.us>
Date: Wed, 19 Oct 2016 13:35:30 -0700
Subject: [PATCH] workaround broken groff man page config

Fixes #2673
---
 Makefile.in                            |  2 ++
 share/functions/__fish_print_help.fish |  5 +++--
 share/groff/fish.tmac                  | 14 ++++++++++++++
 3 files changed, 19 insertions(+), 2 deletions(-)
 create mode 100644 share/groff/fish.tmac

diff --git a/Makefile.in b/Makefile.in
index adea719c5..243d8fde4 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -650,6 +650,7 @@ install-force: all install-translations | show-datadir show-sysconfdir show-extr
 	$v $(INSTALL) -m 755 -d $(DESTDIR)$(datadir)/fish
 	$v $(INSTALL) -m 755 -d $(DESTDIR)$(datadir)/fish/completions
 	$v $(INSTALL) -m 755 -d $(DESTDIR)$(datadir)/fish/functions
+	$v $(INSTALL) -m 755 -d $(DESTDIR)$(datadir)/fish/groff
 	$v $(INSTALL) -m 755 -d $(DESTDIR)$(datadir)/fish/man/man1
 	$v $(INSTALL) -m 755 -d $(DESTDIR)$(datadir)/fish/tools
 	$v $(INSTALL) -m 755 -d $(DESTDIR)$(datadir)/fish/tools/web_config
@@ -674,6 +675,7 @@ install-force: all install-translations | show-datadir show-sysconfdir show-extr
 		$(INSTALL) -m 644 $$i $(DESTDIR)$(datadir)/fish/functions/; \
 	done;
 	@echo "Installing $(bo)man pages$(sgr0)";
+	$v $(INSTALL) -m 644 share/groff/* $(DESTDIR)$(datadir)/fish/groff/
 	$v for i in $(wildcard share/man/man1/*.1); do \
 		$(INSTALL) -m 644 $$i $(DESTDIR)$(datadir)/fish/man/man1/; \
 	done;
diff --git a/share/functions/__fish_print_help.fish b/share/functions/__fish_print_help.fish
index 265f96159..31190e552 100644
--- a/share/functions/__fish_print_help.fish
+++ b/share/functions/__fish_print_help.fish
@@ -39,10 +39,11 @@ function __fish_print_help --description "Print help message for the specified f
 		set cols (math $cols - 4) # leave a bit of space on the right
 		set rLL -rLL=$cols[1]n
 	end
+    set -lx GROFF_TMAC_PATH $__fish_datadir/groff
     if test -e "$__fish_datadir/man/man1/$item.1"
-	    set help (nroff -man -c -t $rLL "$__fish_datadir/man/man1/$item.1" ^/dev/null)
+            set help (nroff -c -man -mfish -t $rLL "$__fish_datadir/man/man1/$item.1" ^/dev/null)
     else if test -e "$__fish_datadir/man/man1/$item.1.gz"
-	    set help (gunzip -c "$__fish_datadir/man/man1/$item.1.gz" ^/dev/null | nroff -man -c -t $rLL ^/dev/null)
+            set help (gunzip -c "$__fish_datadir/man/man1/$item.1.gz" ^/dev/null | nroff -c -man -mfish -t $rLL ^/dev/null)
     end
 
 	# The original implementation trimmed off the top 5 lines and bottom 3 lines
diff --git a/share/groff/fish.tmac b/share/groff/fish.tmac
new file mode 100644
index 000000000..cf8dbe8fa
--- /dev/null
+++ b/share/groff/fish.tmac
@@ -0,0 +1,14 @@
+.\" This is needed on systems that ship with groff versions older than 1.20;
+.\" such as macOS up thru Sierra (10.12). See fish issue #2673.
+.\"
+.\" For UTF-8, map some characters conservatively for the sake
+.\" of easy cut and paste.
+.
+.if '\*[.T]'utf8' \{\
+.  rchar \- - ' `
+.
+.  char \- \N'45'
+.  char  - \N'45'
+.  char  ' \N'39'
+.  char  ` \N'96'
+.\}