By default commands such as "ctest" would not look for certificates
at all: <https://issues.guix.gnu.org/issue/37371>.

This changes CMake such that commands honor SSL_CERT_FILE and SSL_CERT_DIR
as well as /etc/ssl/certs.

--- cmake-3.13.1/Source/cmCurl.cxx	2019-09-10 17:27:36.926907260 +0200
+++ cmake-3.13.1/Source/cmCurl.cxx	2019-09-10 17:52:35.475903919 +0200
@@ -2,11 +2,8 @@
    file Copyright.txt or https://cmake.org/licensing for details.  */
 #include "cmCurl.h"
 
-#if !defined(CMAKE_USE_SYSTEM_CURL) && !defined(_WIN32) &&                    \
-  !defined(__APPLE__) && !defined(CURL_CA_BUNDLE) && !defined(CURL_CA_PATH)
 #  define CMAKE_FIND_CAFILE
 #  include "cmSystemTools.h"
-#endif
 #include "cmStringAlgorithms.h"
 
 // curl versions before 7.21.5 did not provide this error code
@@ -30,6 +27,19 @@
     ::CURLcode res = ::curl_easy_setopt(curl, CURLOPT_CAINFO, cafile);
     check_curl_result(res, "Unable to set TLS/SSL Verify CAINFO: ");
   }
+
+  /* Honor the usual 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)) {
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<div class='path'>path: <a href='/guix/log/?id=d41e9ce19478143883c2c81d9d1bbac6d4e6760a'>root</a>/<a href='/guix/log/gnu?id=d41e9ce19478143883c2c81d9d1bbac6d4e6760a'>gnu</a>/<a href='/guix/log/gnu/services?id=d41e9ce19478143883c2c81d9d1bbac6d4e6760a'>services</a>/<a href='/guix/log/gnu/services/sddm.scm?id=d41e9ce19478143883c2c81d9d1bbac6d4e6760a'>sddm.scm</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/gnu/services/sddm.scm?id=d41e9ce19478143883c2c81d9d1bbac6d4e6760a&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2024-07-18 10:45:19 +0800'>2024-07-18</span></td><td><a href='/guix/commit/gnu/services/sddm.scm?id=8b5c21269f2191fabf5ecfc4f4d03eb68b04b943'>services: sddm: Adjust pass env.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/services/sddm.scm (sddm-shepherd-service): Adjust pass env when sddm
build with qt6.

Change-Id: Iabaa22824db8048c7c86921010b970226f85b7a5
</span></span></td><td>Zheng Junjie</td></tr>
<tr><td><span title='2024-03-19 18:52:16 +0800'>2024-03-19</span></td><td><a href='/guix/commit/gnu/services/sddm.scm?id=3ea55fada0593cd05c686cef2f6a59ba65933ef5'>services: sddm: Add extension for localed-service-type.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/services/sddm.scm (sddm-service-type): Add extension for
localed-service-type.
* gnu/services/xorg.scm (xorg-configuration-keyboard-layout): Export it.

Change-Id: I26e6475b733d69f1baf00786e302a3ec6d3c4a74
Signed-off-by: 宋文武 &lt;iyzsong@member.fsf.org&gt;
</span></span></td><td>Zheng Junjie</td></tr>
<tr><td><span title='2023-08-02 22:27:43 +0800'>2023-08-02</span></td><td><a href='/guix/commit/gnu/services/sddm.scm?id=7e056197d7bf8f888fe52db9d5ee34ec253ffff9'>services: sddm: Set some environment variables for the breeze theme.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/services/sddm.scm (sddm-service-type): Pass #:environment-variables to
make-forkexec-constructor.

Signed-off-by: 宋文武 &lt;iyzsong@member.fsf.org&gt;
</span></span></td><td>Zheng Junjie</td></tr>