Mine

to `gdImagePng'
perfchart_png-perfchart.o(.text+0x3ad2): In function `main':
/var/lib/gforge/chroot/home/users/lmondesi/Backup/perfparse/perfparse-0.105.6/cgi/perfchart.c:277: undefined reference to `gdImageRectangle'
perfchart_png-perfchart.o(.text+0x3b12):/var/lib/gforge/chroot/home/users/lmondesi/Backup/perfparse/perfparse-0.105.6/cgi/perfchart.c:278: undefined reference to `gdImageRectangle'
perfchart_png-perfchart.o(.text+0x3b4f):/var/lib/gforge/chroot/home/users/lmondesi/Backup/perfparse/perfparse-0.105.6/cgi/perfchart.c:281: undefined reference to `gdImageFilledRectangle'
perfchart_png-perfchart.o(.text+0x3b8e):/var/lib/gforge/chroot/home/users/lmondesi/Backup/perfparse/perfparse-0.105.6/cgi/perfchart.c:282: undefined reference to `gdImageFilledRectangle'
perfchart_png-perfchart.o(.text+0x3bbc):/var/lib/gforge/chroot/home/users/lmondesi/Backup/perfparse/perfparse-0.105.6/cgi/perfchart.c:295: undefined reference to `gdImagePng'
collect2: ld returned 1 exit status
make[2]: *** [perfchart.png] Error 1
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/var/lib/gforge/chroot/home/users/lmondesi/Backup/perfparse/perfparse-0.105.6'
make: *** [all] Error 2