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-rw-r--r--scripts/nix-profile-daemon.sh.in4
1 files changed, 2 insertions, 2 deletions
diff --git a/scripts/nix-profile-daemon.sh.in b/scripts/nix-profile-daemon.sh.in
index 52070e36a..1be9a0755 100644
--- a/scripts/nix-profile-daemon.sh.in
+++ b/scripts/nix-profile-daemon.sh.in
@@ -1,5 +1,5 @@
# Only execute this file once per shell.
-if [ -n "$__ETC_PROFILE_NIX_SOURCED" ]; then return; fi
+if [ -n "${__ETC_PROFILE_NIX_SOURCED:-}" ]; then return; fi
__ETC_PROFILE_NIX_SOURCED=1
# Set up secure multi-user builds: non-root users build through the
@@ -51,7 +51,7 @@ fi
# Set $NIX_SSL_CERT_FILE so that Nixpkgs applications like curl work.
-if [ ! -z "$NIX_SSL_CERT_FILE" ]; then
+if [ ! -z "${NIX_SSL_CERT_FILE:-}" ]; then
: # Allow users to override the NIX_SSL_CERT_FILE
elif [ -e /etc/ssl/certs/ca-certificates.crt ]; then # NixOS, Ubuntu, Debian, Gentoo, Arch
export NIX_SSL_CERT_FILE=/etc/ssl/certs/ca-certificates.crt