HP-UX does not have seteuid in libX11-6.2.1/src/lcFile.c however this is only guarded by #ifdef __UNIX0S2__ # define seteuid setuid #endif there should instead by a configure test for it.
Created attachment 51579 [details] [review] patch
Fixed in 0ca4153a373e2af7a9eb3cef003393ab332bc79e
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