source Cargo.nail-env to allow setting RUSTFLAGS etc.

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

diff --git a/nailing-cargo b/nailing-cargo
index 6bbbce78bb423c7779110f5333460db11763f236..fd1fea0cf125818bb79c8b6d635a1a992c47a3e3 100755 (executable)
--- a/nailing-cargo
+++ b/nailing-cargo
@@ -45,6 +45,10 @@ sed='
 /^ *\[dependencies\]/,/^ \[/{
 '
 
+if test -e ../Cargo.nail-env; then
+       . ../Cargo.nail-env
+fi
+
 exec 204<../Cargo.nail
 while read <&204 what where; do
        if [ "x$what" = x- ]; then continue; fi