math/coq: bash dependency missing...

hi, trying to build math/coq (8.10+beta2) I found it failed.

......
OCAMLC ide/coqide.mli
OCAMLOPT ide/coqide.ml
OCAMLOPT -a -o ide/ide.cmxa
OCAMLC ide/coqide_os_specific.mli
OCAMLOPT ide/coqide_os_specific.ml
OCAMLOPT -o bin/coqide
CHECK revision
env: bash: No such file or directory
gmake[1]: *** [Makefile.dev:34: revision] Error 127
gmake[1]: Leaving directory '/usr/ports/pobj/coq-8.10beta2/coq-8.10-beta2'
gmake: *** [Makefile:176: submake] Error 2
*** Error 2 in . (Makefile:58 'do-build')
*** Error 1 in . (/usr/ports/infrastructure/mk/bsd.port.mk:2777 '/usr/ports/pobj/coq-8.10beta2/.build_done')
*** Error 1 in . (/usr/ports/infrastructure/mk/bsd.port.mk:2002 '/usr/ports/packages/amd64/all/coq-8.10beta2.tgz')
*** Error 1 in . (/usr/ports/infrastructure/mk/bsd.port.mk:2468 '_internal-package')
*** Error 1 in /usr/ports/math/coq (/usr/ports/infrastructure/mk/bsd.port.mk:2447 'package')
Mon Sep 9 17:31:51 JST 2019


adding shells/bash to BUILD_DEPENDS, make package works.

--- coq/Makefile-1.41 Sat Sep 7 09:29:29 2019
+++ coq/Makefile Wed Sep 11 08:46:46 2019
@@ -25,6 +25,7 @@

BUILD_DEPENDS= x11/lablgtk3 \
math/ocaml-num \
+ shells/bash \
sysutils/findlib
RUN_DEPENDS= x11/lablgtk3



with this patch, make test still fails.
the log indicates that there's use of some invalid options to diff command.
I don't dig into details yet but suppose those options are for gnu diff?
anyway, bash should be added to BUILD_DEPENDS.

-- yozo.