build: UNSET cache variables for FIND_IMAGEMAGICK_API
authorMike Stroyan <stroyan@google.com>
Tue, 20 Sep 2016 15:05:28 +0000 (09:05 -0600)
committerMike Stroyan <stroyan@google.com>
Mon, 26 Sep 2016 18:58:15 +0000 (12:58 -0600)
commit4267e83cd2c8c292ab3af6378575ae750bb32e86
treeeb430c3a8e5634bba274c0d4f769d2ecb53e02c8
parentc3cbf376f476966c6e155733b8cfa514312ba3d8
build: UNSET cache variables for FIND_IMAGEMAGICK_API

The way that the ImageMagick component search calls find_path
multiple times with the same variable but different names
does not expect old cache values in the variable.
cmake/FindImageMagick.cmake