Put it into toolchain manager to skip in unit test

Author: crazywhalecc

src/SPC/toolchain/ToolchainManager.php

@@ -7,6 +7,7 @@
 use SPC\builder\linux\SystemUtil;
 use SPC\exception\WrongUsageException;
 use SPC\util\GlobalEnvManager;
+use SPC\util\PkgConfigUtil;
 use SPC\util\SPCTarget;
 
 class ToolchainManager
@@ -56,6 +57,15 @@ public static function afterInitToolchain(): void
         if (SPCTarget::getLibc() === 'glibc' && SystemUtil::isMuslDist()) {
             throw new WrongUsageException('You are linking against glibc dynamically, which is only supported on glibc distros.');
         }
+
+        // init pkg-config for unix
+        if (is_unix()) {
+            if (($found = PkgConfigUtil::findPkgConfig()) === null) {
+                throw new WrongUsageException('Cannot find pkg-config executable. Please run `doctor` to fix this.');
+            }
+            GlobalEnvManager::putenv("PKG_CONFIG={$found}");
+        }
+
         $toolchain = getenv('SPC_TOOLCHAIN');
         /* @var ToolchainInterface $toolchain */
         $instance = new $toolchain();

src/SPC/util/GlobalEnvManager.php

@@ -122,14 +122,6 @@ public static function afterInit(): void
                 self::putenv("YACC={$yacc}");
             }
         }
-
-        // init pkg-config for unix
-        if (is_unix()) {
-            if (($found = PkgConfigUtil::findPkgConfig()) === null) {
-                throw new WrongUsageException('Cannot find pkg-config executable. Please run `doctor` to fix this.');
-            }
-            self::putenv("PKG_CONFIG={$found}");
-        }
     }
 
     private static function readIniFile(): array