Please describe the problem:
gimp 2.2.11 fails to compile for me, relevant snip from the log:

png.o(.text+0x86d): In function `load_image':
/usr/obj/local/gimp/005/src/plug-ins/common/png.c:1015: undefined reference to
`png_read_destroy'
png.o(.text+0x16ca): In function `save_image':
/usr/obj/local/gimp/005/src/plug-ins/common/png.c:1444: undefined reference to
`png_write_destroy'
collect2: ld returned 1 exit status
gmake[3]: *** [png] Error 1


Steps to reproduce:
1. 
2. 
3. 


Actual results:


Expected results:


Does this happen every time?


Other information:
png.h is located in /usr/local/include (symlink to
/usr/local/include/libpng12/png.h).  configure is finding it:

checking png.h usability... yes
checking png.h presence... yes
checking for png.h... yes
checking for png_structp in png.h... yes