Fix issue #4010 (#4041)

Enable some code blocks that were wrongly disabled when the legacy engine is disabled at compile time.

src/ccmain/pagesegmain.cpp

@@ -332,11 +332,11 @@ ColumnFinder *Tesseract::SetupPageSegAndDetectOrientation(PageSegMode pageseg_mo
 
     finder->SetupAndFilterNoise(pageseg_mode, *photo_mask_pix, to_block);
 
-#ifndef DISABLED_LEGACY_ENGINE
-
+  #ifndef DISABLED_LEGACY_ENGINE
     if (equ_detect_) {
       equ_detect_->LabelSpecialText(to_block);
     }
+  #endif
 
     BLOBNBOX_CLIST osd_blobs;
     // osd_orientation is the number of 90 degree rotations to make the
@@ -350,6 +350,8 @@ ColumnFinder *Tesseract::SetupPageSegAndDetectOrientation(PageSegMode pageseg_mo
       vertical_text = finder->IsVerticallyAlignedText(textord_tabfind_vertical_text_ratio, to_block,
                                                       &osd_blobs);
     }
+
+  #ifndef DISABLED_LEGACY_ENGINE
     if (PSM_OSD_ENABLED(pageseg_mode) && osd_tess != nullptr && osr != nullptr) {
       std::vector<int> osd_scripts;
       if (osd_tess != this) {
@@ -400,10 +402,10 @@ ColumnFinder *Tesseract::SetupPageSegAndDetectOrientation(PageSegMode pageseg_mo
         }
       }
     }
+  #endif // ndef DISABLED_LEGACY_ENGINE
+
     osd_blobs.shallow_clear();
     finder->CorrectOrientation(to_block, vertical_text, osd_orientation);
-
-#endif // ndef DISABLED_LEGACY_ENGINE
   }
 
   return finder;