* rs6000-tdep.c: Fix typo in comment.
* valops.c (call_function_by_hand): Set using_gcc to 2
for code compiled without -g, per comment in code.
* config/a29k/tm-a29k.h (STACK_ALIGN): Add comment.
* config/sparc/tm-sparc.h (STACK_ALIGN): Add comment.
* config/sparc/tm-sp64.h (STACK_ALIGN): Add comment.
* config/pyr/tm-pyr.h (STACK_ALIGN): Add comment.
* config/m88k/tm-m88k.h (STACK_ALIGN): Add comment.
* config/pa/tm-hppa.h (PUSH_ARGUMENTS): Enclose args in ()'s.
(STACK_ALIGN): Add comment, move to be with other associated
macros, and document.
* config/mips/tm-mips.h (PUSH_ARGUMENTS): Enclose args in ()'s.
(STACK_ALIGN): Remove completely, handled by PUSH_ARGUMENTS.
* config/alpha/tm-alpha.h (PUSH_ARGUMENTS): Enclose args in ()'s.
* config/rs6000/tm-rs6000.h (STACK_ALIGN): Remove completely,
handled by PUSH_ARGUMENTS.
(PUSH_ARGUMENTS): Enclose args in ()'s.
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