Submitted upstream at https://gitlab.kitware.com/cmake/cmake/-/merge_requests/7670.

diff --git a/Source/cmCurl.cxx b/Source/cmCurl.cxx
index 28ee24dfe9..fc5405213a 100644
--- a/Source/cmCurl.cxx
+++ b/Source/cmCurl.cxx
@@ -38,6 +38,14 @@ std::string cmCurlSetCAInfo(::CURL* curl, const std::string& cafile)
     ::CURLcode res = ::curl_easy_setopt(curl, CURLOPT_CAINFO, cafile.c_str());
     check_curl_result(res, "Unable to set TLS/SSL Verify CAINFO: ");
   }
+  /* Honor the user-configurable OpenSSL environment variables. */
+  else if (cmSystemTools::GetEnv("SSL_CERT_FILE", e)) {
+    ::CURLcode res = ::curl_easy_setopt(curl, CURLOPT_CAINFO, e.c_str());
+    check_curl_result(res, "Unable to set TLS/SSL Verify CAINFO: ");
+  } else if (cmSystemTools::GetEnv("SSL_CERT_DIR", e)) {
+    ::CURLcode res = ::curl_easy_setopt(curl, CURLOPT_CAPATH, e.c_str());
+    check_curl_result(res, "Unable to set TLS/SSL Verify CAINFO: ");
+  }
 #ifdef CMAKE_FIND_CAFILE
 #  define CMAKE_CAFILE_FEDORA "/etc/pki/tls/certs/ca-bundle.crt"
   else if (cmSystemTools::FileExists(CMAKE_CAFILE_FEDORA, true)) {
?id=ad9768eb9c742a9beee38214fc19f9f07e4e45c9'>refs</a><a class='active' href='/guix/log/etc/guix-daemon.service.in'>log</a><a href='/guix/tree/etc/guix-daemon.service.in?id=ad9768eb9c742a9beee38214fc19f9f07e4e45c9'>tree</a><a href='/guix/commit/etc/guix-daemon.service.in?id=ad9768eb9c742a9beee38214fc19f9f07e4e45c9'>commit</a><a href='/guix/diff/etc/guix-daemon.service.in?id=ad9768eb9c742a9beee38214fc19f9f07e4e45c9'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/etc/guix-daemon.service.in'>
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<div class='path'>path: <a href='/guix/log/?id=ad9768eb9c742a9beee38214fc19f9f07e4e45c9'>root</a>/<a href='/guix/log/etc?id=ad9768eb9c742a9beee38214fc19f9f07e4e45c9'>etc</a>/<a href='/guix/log/etc/guix-daemon.service.in?id=ad9768eb9c742a9beee38214fc19f9f07e4e45c9'>guix-daemon.service.in</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/etc/guix-daemon.service.in?id=ad9768eb9c742a9beee38214fc19f9f07e4e45c9&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2022-10-23 02:00:26 +0200'>2022-10-23</span></td><td><a href='/guix/commit/etc/guix-daemon.service.in?id=068f1a1905099f32beec9a8c4904efbb4c503981'>etc: systemd services shouldn't ‘RemainAfterExit’.</a><span class='msg-avail'>...<span class='msg-tooltip'>* etc/guix-daemon.service.in (RemainAfterExit): Don't.
* etc/guix-publish.service.in (RemainAfterExit): Likewise don't.
</span></span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2022-10-23 02:00:25 +0200'>2022-10-23</span></td><td><a href='/guix/commit/etc/guix-daemon.service.in?id=0f6ec662f626eb5ff0685a20ca7e153dae7442e6'>etc: Add ‘Restart=always’ to both systemd services.</a><span class='msg-avail'>...<span class='msg-tooltip'>* etc/guix-daemon.service.in (Restart): ‘Always’ do.
* etc/guix-publish.service.in (Restart): Likewise.
</span></span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2022-10-23 02:00:00 +0200'>2022-10-23</span></td><td><a href='/guix/commit/etc/guix-daemon.service.in?id=f16d91295a743d43b1604103b1399a621badea8c'>etc: Add ‘OOMPolicy=continue’ to guix-daemon.service.</a><span class='msg-avail'>...<span class='msg-tooltip'>* etc/guix-daemon.service.in (OOMPolicy): Continue.
</span></span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2021-07-07 23:54:20 -0400'>2021-07-07</span></td><td><a href='/guix/commit/etc/guix-daemon.service.in?id=4cbe0127a668cbcc64087c5d311308b59d39b104'>guix-install.sh: Prompt for configuring substitutes discovery.</a><span class='msg-avail'>...<span class='msg-tooltip'>Also ensure prompt_yes_no always print the message with a trailing space,
which is more pleasing to the eye.

* etc/guix-daemon.conf.in &lt;--discover=no&gt;: New guix-daemon option.
* etc/guix-daemon.service.in: Likewise.
* etc/init.d/guix-daemon.in: Likewise.
* etc/openrc/guix-daemon.in: Likewise.
* etc/guix-install.sh (configure_substitute_discovery): New procedure.
(sys_enable_guix_daemon): Ask the user whether automatic substitute discovery
should be enabled.  Set the '--discover' argument accordingly.
(prompt_yes_no): Add a trailing space to the message.
(sys_authorize_build_farms): Remove trailing space from the message argument.
* NEWS (Distribution): Add news.
</span></span></td><td>Maxim Cournoyer</td></tr>