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Diffstat (limited to 'src/ChangeLog')
| -rw-r--r-- | src/ChangeLog | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/ChangeLog b/src/ChangeLog index b1b4dc8bbcd..fb59e9e24dc 100644 --- a/src/ChangeLog +++ b/src/ChangeLog @@ -1,3 +1,25 @@ +2012-09-15 Paul Eggert <eggert@cs.ucla.edu> + + Port better to POSIX hosts lacking _setjmp (Bug#12446). + * lisp.h: Include <setjmp.h> here, since we use its symbols here. + All instances of '#include <setjmp.h>' removed, if the + only reason for the instance was because "lisp.h" was included. + (sys_jmp_buf, sys_setjmp, sys_longjmp): New symbols. + Unless otherwise specified, replace all uses of jmp_buf, _setjmp, + and _longjmp with the new symbols. Emacs already uses _setjmp if + available, so this change affects only POSIXish hosts that have + sigsetjmp but not _setjmp, such as some versions of Solaris and + Unixware. (Also, POSIX-2008 marks _setjmp as obsolescent.) + * image.c (_setjmp, _longjmp) [HAVE_PNG && !HAVE__SETJMP]: New macros. + (png_load_body) [HAVE_PNG]: + (PNG_LONGJMP) [HAVE_PNG && PNG_LIBPNG_VER < 10500]: + (PNG_JMPBUF) [HAVE_PNG && PNG_LIBPNG_VER >= 10500]: + Use _setjmp and _longjmp rather than sys_setjmp and sys_longjmp, + since PNG requires jmp_buf. This is the only exception to the + general rule that we now use sys_setjmp and sys_longjmp. + This exception is OK since this code does not change the signal + mask or longjmp out of a signal handler. + 2012-09-14 Paul Eggert <eggert@cs.ucla.edu> * alloc.c [!SYSTEM_MALLOC && !SYNC_INPUT && HAVE_PTHREAD]: |