[pkgsrc/trunk]: pkgsrc/mk/build mk/build/build.mk: use the login shell by def...

[rillig <rillig%pkgsrc.org@localhost>]

details:   https://anonhg.NetBSD.org/pkgsrc/rev/0ebf5e0c4e5d
branches:  trunk
changeset: 429888:0ebf5e0c4e5d
user:      rillig <rillig%pkgsrc.org@localhost>
date:      Sat Apr 25 21:36:17 2020 +0000

description:
mk/build/build.mk: use the login shell by default for build-env

diffstat:

 mk/build/build.mk |  6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diffs (23 lines):

diff -r 6a06359b60a3 -r 0ebf5e0c4e5d mk/build/build.mk
--- a/mk/build/build.mk Sat Apr 25 21:33:34 2020 +0000
+++ b/mk/build/build.mk Sat Apr 25 21:36:17 2020 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: build.mk,v 1.32 2020/02/25 05:30:14 rillig Exp $
+# $NetBSD: build.mk,v 1.33 2020/04/25 21:36:17 rillig Exp $
 #
 # This file defines what happens in the build phase, excluding the
 # self-test, which is defined in test.mk.
@@ -202,11 +202,11 @@
 # BUILD_ENV_SHELL
 #      The shell to start.
 #
-#      Default: ${SH}
+#      Default: ${SHELL}, fallback ${SH}
 #
 # Keywords: debug build
 
-BUILD_ENV_SHELL?=      ${SH}
+BUILD_ENV_SHELL?=      ${SHELL:U${SH}}
 build-env: .PHONY ${_PKGSRC_BARRIER:Ubarrier:D_build-env}
 _build-env: .PHONY configure
        @${STEP_MSG} "Entering the build environment for ${PKGNAME}"