[pkgsrc/trunk]: pkgsrc/mk/platform mk: Explicitly set arm64 flags on Darwin/a...

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

details:   https://anonhg.NetBSD.org/pkgsrc/rev/2b5bc2815eec
branches:  trunk
changeset: 770330:2b5bc2815eec
user:      jperkin <jperkin%pkgsrc.org@localhost>
date:      Mon Nov 29 12:38:44 2021 +0000

description:
mk: Explicitly set arm64 flags on Darwin/aarch64.

It's currently impossible to run system binaries inside an arm64 chroot, even
with SIP turned off, so the only way to build is to use an x86_64 chroot and
effectively cross-compile to arm64.

diffstat:

 mk/platform/Darwin.mk |  15 ++++++++++++++-
 1 files changed, 14 insertions(+), 1 deletions(-)

diffs (29 lines):

diff -r 3fd788b721f6 -r 2b5bc2815eec mk/platform/Darwin.mk
--- a/mk/platform/Darwin.mk     Mon Nov 29 12:31:56 2021 +0000
+++ b/mk/platform/Darwin.mk     Mon Nov 29 12:38:44 2021 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: Darwin.mk,v 1.108 2021/11/29 12:31:56 jperkin Exp $
+# $NetBSD: Darwin.mk,v 1.109 2021/11/29 12:38:44 jperkin Exp $
 #
 # Variable definitions for the Darwin operating system.
 
@@ -132,6 +132,19 @@
 .endif
 
 #
+# Explicitly pass arm64 flags when building for arm64 so that everything works
+# as expected when effectively cross-compiling inside an x86_64 chroot.
+#
+.if ${MACHINE_ARCH} == "aarch64"
+CWRAPPERS_APPEND.cc+=  -arch arm64
+CWRAPPERS_APPEND.cxx+= -arch arm64
+CWRAPPERS_APPEND.ld+=  -arch arm64
+_WRAP_EXTRA_ARGS.CC+=  -arch arm64
+_WRAP_EXTRA_ARGS.CXX+= -arch arm64
+_WRAP_EXTRA_ARGS.LD+=  -arch arm64
+.endif
+
+#
 # Newer macOS releases remove library files from the file system.  The only way
 # to test them is via dlopen(), which is obviously impractical for many things.
 #