only try to define it if it isn't yet defined..
commit6055ff407264f520571f5857d536cc5a6b94a7a6
authorNicJA <NicJA@fb15a70f-31f2-0310-bbcc-cdcc74a49acc>
Fri, 24 Mar 2017 15:04:40 +0000 (24 15:04 +0000)
committerNicJA <NicJA@fb15a70f-31f2-0310-bbcc-cdcc74a49acc>
Fri, 24 Mar 2017 15:04:40 +0000 (24 15:04 +0000)
tree27097ed0a19a339c9f2443e8ddba4cad5e56d7bf
parenta0f30aec9c803c10c7bece7c4bb49dfc682b90b4
only try to define it if it isn't yet defined..

git-svn-id: https://svn.aros.org/svn/aros/trunk/AROS@54270 fb15a70f-31f2-0310-bbcc-cdcc74a49acc
workbench/libs/icon/icon_init.c