add sqlsrv support

src/SPC/builder/linux/LinuxBuilder.php

@@ -144,6 +144,7 @@ class LinuxBuilder extends BuilderBase
         // prepare build php envs
         $envs_build_php = SystemUtil::makeEnvVarString([
             'CFLAGS' => $cflags,
+            'CPPFLAGS' => '-I' . BUILD_INCLUDE_PATH,
             'LIBS' => '-ldl -lpthread',
         ]);
 

src/SPC/builder/linux/library/unixodbc.php

@@ -0,0 +1,12 @@
+<?php
+
+declare(strict_types=1);
+
+namespace SPC\builder\linux\library;
+
+class unixodbc extends LinuxLibraryBase
+{
+    use \SPC\builder\unix\library\unixodbc;
+
+    public const NAME = 'unixodbc';
+}