Typo in shpgeo.c?

[a2435191]

I am using this project and when I run make I get the following warning:

shpgeo.c:1352:18: warning: using the result of an assignment as a condition without parentheses [-Wparentheses]
    if (highPart = psCShape->nParts)
        ~~~~~~~~~^~~~~~~~~~~~~~~~~~
shpgeo.c:1352:18: note: place parentheses around the assignment to silence this warning
    if (highPart = psCShape->nParts)
                 ^
        (                          )
shpgeo.c:1352:18: note: use '==' to turn this assignment into an equality comparison
    if (highPart = psCShape->nParts)
                 ^
                 ==

Looking inside shpgeo.c at line 1352 it seems like maybe it should be ==. But I am not sure what it's supposed to be!