updated build system

support/src/utils/unix.cpp

@@ -22,6 +22,7 @@
 #if !defined(_WIN32)
 
 #include "utils/unix.hpp"
+
 #include "utils/collection.hpp"
 #include "utils/error.hpp"
 
@@ -39,8 +40,8 @@ namespace {
   while (true) {
     auto group_count{static_cast<int>(groups.size())};
     if (group_count > max_group_count) {
-      repertory::utils::error::handle_error(
-          function_name, "getgrouplist failed: too many groups");
+      repertory::utils::error::handle_error(function_name,
+                                            "group list has too many groups");
       break;
     }
 
@@ -51,8 +52,8 @@ namespace {
     if (res < 0) {
       if (orig_count == 0U) {
         repertory::utils::error::handle_error(
-            function_name,
-            fmt::format("failed to get group list|error|{}", errno));
+            function_name, std::string{"failed to get group list|error|"} +
+                               std::to_string(errno));
       }
 
       break;
@@ -70,7 +71,8 @@ namespace {
   auto res = getgrouplist(pass->pw_name, pass->pw_gid, nullptr, &group_count);
   if (res >= 0) {
     repertory::utils::error::raise_error(
-        function_name, fmt::format("failed to get group list|error|{}", errno));
+        function_name, std::string{"failed to get group list count|error|"} +
+                           std::to_string(errno));
   }
 #endif // defined(__APPLE__)
 
@@ -79,7 +81,8 @@ namespace {
   res = getgrouplist(pass->pw_name, pass->pw_gid, groups.data(), &group_count);
   if (res >= 0) {
     repertory::utils::error::raise_error(
-        function_name, fmt::format("failed to get group list|error|{}", errno));
+        function_name,
+        std::string{"failed to get group list|error|"} + std::to_string(errno));
   }
 #endif // !defined(__APPLE__)