Please fix compiler warnings:
gindatapage.c: In function ‘dataPlaceToPage’:
gindatapage.c:706:24: warning: unused variable ‘pageBackup’ [-Wunused-variable]
gindatapage.c: In function ‘updateItemIndexes’:
gindatapage.c:1182:6: warning: variable ‘totalsize’ set but not used [-Wunused-but-set-variable]
gindatapage.c: In function ‘dataPlaceToPage’:
gindatapage.c:633:28: warning: ‘startI’ may be used uninitialized in this function [-Wuninitialized]
gindatapage.c:617:21: note: ‘startI’ was declared here
