Patch 8.1.2253

[Bram Moolenaar]

Patch 8.1.2253
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)
Files: runtime/doc/Makefile


*** ../vim-8.1.2252/runtime/doc/Makefile 2019-11-03 21:46:16.425213135 +0100
--- runtime/doc/Makefile 2019-11-04 21:22:35.145308509 +0100
***************
*** 323,331 ****
# 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"; \
else echo "vim executable $(VIMEXE) not found; help tags not updated"; fi

# Use "doctags" to generate the tags file. Only works for English!
--- 323,331 ----
# Use Vim to generate the tags file. Can only be used when Vim has been
# compiled and installed. Supports multiple languages.
vimtags: $(DOCS)
! @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!
*** ../vim-8.1.2252/src/version.c 2019-11-04 20:36:46.128633933 +0100
--- src/version.c 2019-11-04 21:24:30.808840203 +0100
***************
*** 743,744 ****
--- 743,746 ----
{ /* Add new patch number below this line */
+ /**/
+ 2253,
/**/

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/// Bram Moolenaar -- Br...@Moolenaar.net -- http://www.Moolenaar.net \\\
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