why do we have prefix= calls instead of prefix=BUILD_ROOT_DIR?

src/SPC/builder/unix/library/imagemagick.php

@@ -80,17 +80,10 @@ trait imagemagick
                 'includearchdir=${prefix}/include/ImageMagick-7'
             );
         }
-        $filelist = [
+        $this->patchLaDependencyPrefix([
             'libMagick++-7.Q16HDRI.la',
             'libMagickCore-7.Q16HDRI.la',
             'libMagickWand-7.Q16HDRI.la',
-        ];
-        foreach ($filelist as $file) {
-            FileSystem::replaceFileStr(
-                BUILD_LIB_PATH . '/' . $file,
-                ' /lib/',
-                ' ' . BUILD_LIB_PATH . '/',
-            );
-        }
+        ]);
     }
 }