about summary refs log tree commit diff
path: root/pkgs/stdenv/generic/setup.sh
diff options
context:
space:
mode:
Diffstat (limited to 'pkgs/stdenv/generic/setup.sh')
-rw-r--r--pkgs/stdenv/generic/setup.sh15
1 files changed, 14 insertions, 1 deletions
diff --git a/pkgs/stdenv/generic/setup.sh b/pkgs/stdenv/generic/setup.sh
index 7d25472993c5..b49846fa050c 100644
--- a/pkgs/stdenv/generic/setup.sh
+++ b/pkgs/stdenv/generic/setup.sh
@@ -180,6 +180,17 @@ installBin() {
 }
 
 
+# Return success if the specified file is an ELF object.
+isELF() {
+    local fn="$1"
+    local magic
+    exec {fd}< "$fn"
+    read -n 4 -u $fd magic
+    exec {fd}<&-
+    if [[ "$magic" =~ ELF ]]; then return 0; else return 1; fi
+}
+
+
 ######################################################################
 # Initialisation.
 
@@ -373,7 +384,9 @@ paxmark() { true; }
 
 # Prevent OpenSSL-based applications from using certificates in
 # /etc/ssl.
-export SSL_CERT_FILE=/no-cert-file.crt
+if [ -z "$SSL_CERT_FILE" ]; then
+  export SSL_CERT_FILE=/no-cert-file.crt
+fi
 
 
 ######################################################################