makepkg: add support for CARCH environment var

Add support for overriding configuration in /etc/makepkg.conf and
~/.makepkg.conf by setting the environment variable CARCH similar to
how SRCDEST and PKGDEST behave.

Fixes FS#35030.

Signed-off-by: Allan McRae <allan@archlinux.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/scripts/makepkg.sh.in b/scripts/makepkg.sh.in
index fca2f2e3..1d737d07 100644
--- a/scripts/makepkg.sh.in
+++ b/scripts/makepkg.sh.in
@@ -2638,6 +2638,7 @@ trap 'trap_exit USR1 "$(gettext "An unknown error has occurred. Exiting...")"' E
 [[ -n ${SRCEXT} ]] && _SRCEXT=${SRCEXT}
 [[ -n ${GPGKEY} ]] && _GPGKEY=${GPGKEY}
 [[ -n ${PACKAGER} ]] && _PACKAGER=${PACKAGER}
+[[ -n ${CARCH} ]] && _CARCH=${CARCH}
 
 # default config is makepkg.conf
 MAKEPKG_CONF=${MAKEPKG_CONF:-$confdir/makepkg.conf}
@@ -2737,6 +2738,7 @@ PKGEXT=${_PKGEXT:-$PKGEXT}
 SRCEXT=${_SRCEXT:-$SRCEXT}
 GPGKEY=${_GPGKEY:-$GPGKEY}
 PACKAGER=${_PACKAGER:-$PACKAGER}
+CARCH=${_CARCH:-$CARCH}
 
 if (( ! INFAKEROOT )); then
 	if (( EUID == 0 && ! ASROOT )); then