Below patch removes use of sbrk from mkhybrid. sbrk is only used here when mkhybrid is run in verbose mode to print a diagnostic (see src/mkisofs.c).
ok? Index: src/config.h =================================================================== RCS file: /cvs/src/gnu/usr.sbin/mkhybrid/src/config.h,v retrieving revision 1.1 diff -u -p -u -r1.1 config.h --- src/config.h 10 Oct 2000 20:40:12 -0000 1.1 +++ src/config.h 10 Nov 2018 18:33:54 -0000 @@ -20,7 +20,7 @@ #define HAVE_MEMMOVE 1 /* Define if you have the sbrk function. */ -#define HAVE_SBRK 1 +/* #undef HAVE_SBRK */ /* Define if you have the <dirent.h> header file. */ #define HAVE_DIRENT_H 1
