Fix linux build error on tests

Author: ChaseSunstrom

include/core/registry.hpp

@@ -81,7 +81,7 @@ struct package_setup {
 
   // platform-specific overrides
   platform_setup windows;
-  platform_setup linux;
+  platform_setup linux_os;  // Can't use 'linux' - it's a predefined macro on Linux
   platform_setup macos;
 
   bool has_setup() const { return !commands.empty(); }

src/core/commands/command_build.cpp

@@ -461,11 +461,11 @@ static bool run_package_setup(
     required_tools = pkg.setup.macos.required_tools;
   }
 #else
-  if (!pkg.setup.linux.commands.empty()) {
-    commands = pkg.setup.linux.commands;
+  if (!pkg.setup.linux_os.commands.empty()) {
+    commands = pkg.setup.linux_os.commands;
   }
-  if (!pkg.setup.linux.required_tools.empty()) {
-    required_tools = pkg.setup.linux.required_tools;
+  if (!pkg.setup.linux_os.required_tools.empty()) {
+    required_tools = pkg.setup.linux_os.required_tools;
   }
 #endif
 

src/core/registry.cpp

@@ -522,8 +522,8 @@ registry::load_package_file(const std::string &name) const {
       info.setup.windows.required_tools = reader.get_string_array("setup.windows.requires");
     }
     if (reader.has_key("setup.linux")) {
-      info.setup.linux.commands = reader.get_string_array("setup.linux.commands");
-      info.setup.linux.required_tools = reader.get_string_array("setup.linux.requires");
+      info.setup.linux_os.commands = reader.get_string_array("setup.linux.commands");
+      info.setup.linux_os.required_tools = reader.get_string_array("setup.linux.requires");
     }
     if (reader.has_key("setup.macos")) {
       info.setup.macos.commands = reader.get_string_array("setup.macos.commands");

src/core/workspace/workspace.cpp

@@ -1146,8 +1146,8 @@ void configure_index_dependencies_fetchcontent_phase1(
     }
 
     cmakelists << "  else()\n";  // LINUX
-    auto linux_cmds = pkg_info.setup.linux.commands.empty() ?
-                      pkg_info.setup.commands : pkg_info.setup.linux.commands;
+    auto linux_cmds = pkg_info.setup.linux_os.commands.empty() ?
+                      pkg_info.setup.commands : pkg_info.setup.linux_os.commands;
     for (const auto &cmd : linux_cmds) {
       std::string cmake_cmd = cmd;
       cforge_size_t pos;