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-rw-r--r--src/libstore/download.cc7
-rw-r--r--src/libstore/globals.cc10
2 files changed, 13 insertions, 4 deletions
diff --git a/src/libstore/download.cc b/src/libstore/download.cc
index 63e498f0603a..33ab1f027829 100644
--- a/src/libstore/download.cc
+++ b/src/libstore/download.cc
@@ -221,9 +221,10 @@ struct CurlDownloader : public Downloader
             if (request.head)
                 curl_easy_setopt(req, CURLOPT_NOBODY, 1);
 
-            if (request.verifyTLS)
-                curl_easy_setopt(req, CURLOPT_CAINFO, settings.caFile.c_str());
-            else {
+            if (request.verifyTLS) {
+                if (settings.caFile != "")
+                    curl_easy_setopt(req, CURLOPT_CAINFO, settings.caFile.c_str());
+            } else {
                 curl_easy_setopt(req, CURLOPT_SSL_VERIFYPEER, 0);
                 curl_easy_setopt(req, CURLOPT_SSL_VERIFYHOST, 0);
             }
diff --git a/src/libstore/globals.cc b/src/libstore/globals.cc
index 2aceed27051d..935018132d31 100644
--- a/src/libstore/globals.cc
+++ b/src/libstore/globals.cc
@@ -41,7 +41,15 @@ Settings::Settings()
 {
     buildUsersGroup = getuid() == 0 ? "nixbld" : "";
     lockCPU = getEnv("NIX_AFFINITY_HACK", "1") == "1";
-    caFile = getEnv("NIX_SSL_CERT_FILE", getEnv("SSL_CERT_FILE", "/etc/ssl/certs/ca-certificates.crt"));
+
+    caFile = getEnv("NIX_SSL_CERT_FILE", getEnv("SSL_CERT_FILE", ""));
+    if (caFile == "") {
+        for (auto & fn : {"/etc/ssl/certs/ca-certificates.crt", "/nix/var/nix/profiles/default/etc/ssl/certs/ca-bundle.crt"})
+            if (pathExists(fn)) {
+                caFile = fn;
+                break;
+            }
+    }
 
     /* Backwards compatibility. */
     auto s = getEnv("NIX_REMOTE_SYSTEMS");