two patches

[Steven Pelletier]

Below are two patch specific to Apple/macOS versions of rcs.

With the release of macOS High Sierra (10.13), Apple is enforcing that printf (and related) format strings that contain a %n specifier must be in write-protected memory.  This causes rcsdiff to take an illegal instruction trap shortly after startup.  Running rcsdiff without arguments will reproduce the issue.  The patch, rcs-apple_snprintf.patch, fixes that problem.  This fix is limited to a one line change to lib/vasnprintf.c  It is worth noting that old binaries will no longer function after the OS upgrade.

The second patch is for an old compile error where _Noreturn isn’t properly defined on Apple platforms.  rcs-apple_noreturn.patch, fixes that.  This fix is a one line change to lib/config.h.in

rcs-apple_noreturn.patch
Description: Binary data

rcs-apple_snprintf.patch
Description: Binary data

Steven Pelletier

SquareTurn Technology, Inc.

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Boston, MA 02111