# HG changeset patch
# User Bram Moolenaar <Bram@vim.org>
# Date 1572899403 -3600
# Node ID 59c56c97049d2ec07b2dfb3853395fc3dce5348c
# Parent  7ca13352c0ddeb14846d15d368724f37943ef502
patch 8.1.2253: using "which" to check for an executable is not reliable

Commit: https://github.com/vim/vim/commit/ad4de52510d5b4a949c0c9e25b5d5333744820b3
Author: Bram Moolenaar <Bram@vim.org>
Date:   Mon Nov 4 21:24:48 2019 +0100

    patch 8.1.2253: using "which" to check for an executable is not reliable

    Problem:    Using "which" to check for an executable is not reliable.
    Solution:   Use "command -v" instead.  Also exit with error code when
                generating tags has an error. (closes #5174)

diff --git a/runtime/doc/Makefile b/runtime/doc/Makefile
--- a/runtime/doc/Makefile
+++ b/runtime/doc/Makefile
@@ -323,9 +323,9 @@ all: tags vim.man evim.man vimdiff.man v
 # Use Vim to generate the tags file.  Can only be used when Vim has been
 # compiled and installed.  Supports multiple languages.
 vimtags: $(DOCS)
-	@if which $(VIMEXE) >/dev/null; then \
-	  $(VIMEXE) --clean -eX -u doctags.vim >/dev/null; \
-	  echo "help tags updated"; \
+	@if command -v $(VIMEXE); then \
+	    $(VIMEXE) --clean -eX -u doctags.vim >/dev/null && \
+	      echo "help tags updated"; \
 	  else echo "vim executable $(VIMEXE) not found; help tags not updated"; fi
 
 # Use "doctags" to generate the tags file.  Only works for English!
diff --git a/src/version.c b/src/version.c
--- a/src/version.c
+++ b/src/version.c
@@ -742,6 +742,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2253,
+/**/
     2252,
 /**/
     2251,