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Port minor AC_FUNC_ALLOCA fixes from Gnulib

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* lib/autoconf/functions.m4 (_AC_LIBOBJ_ALLOCA, AC_FUNC_ALLOCA):
Use ' not ` in generated comments, as per current GNU coding style.
(_AC_LIBOBJ_ALLOCA): Use plain # instead of unnecessary quadrigraph.
This patch is adapted from Gnulib.
This commit is contained in:
Paul Eggert 2020-12-11 15:18:41 -08:00
parent 8f19de6df0
commit 2f3f782cdd
1 changed files with 5 additions and 5 deletions
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10
lib/autoconf/functions.m4
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@ -358,8 +358,8 @@ AN_FUNCTION([getwd], [warn: getwd is deprecated, use getcwd instead])
# _AC_LIBOBJ_ALLOCA
# -----------------
# Set up the LIBOBJ replacement of `alloca'. Well, not exactly
# AC_LIBOBJ since we actually set the output variable `ALLOCA'.
# Set up the LIBOBJ replacement of 'alloca'. Well, not exactly
# AC_LIBOBJ since we actually set the output variable 'ALLOCA'.
# Nevertheless, for Automake, AC_LIBSOURCES it.
m4_define([_AC_LIBOBJ_ALLOCA],
[# The SVR3 libPW and SVR4 libucb both contain incompatible functions
@ -368,7 +368,7 @@ m4_define([_AC_LIBOBJ_ALLOCA],
# use ar to extract alloca.o from them instead of compiling alloca.c.
AC_LIBSOURCES(alloca.c)
AC_SUBST([ALLOCA], [\${LIBOBJDIR}alloca.$ac_objext])dnl
AC_DEFINE(C_ALLOCA, 1, [Define to 1 if using `alloca.c'.])
AC_DEFINE(C_ALLOCA, 1, [Define to 1 if using 'alloca.c'.])
AC_CACHE_CHECK([stack direction for C alloca],
[ac_cv_c_stack_direction],
@ -400,7 +400,7 @@ AH_VERBATIM([STACK_DIRECTION],
STACK_DIRECTION > 0 => grows toward higher addresses
STACK_DIRECTION < 0 => grows toward lower addresses
STACK_DIRECTION = 0 => direction of growth unknown */
@%:@undef STACK_DIRECTION])dnl
#undef STACK_DIRECTION])dnl
AC_DEFINE_UNQUOTED(STACK_DIRECTION, $ac_cv_c_stack_direction)
])# _AC_LIBOBJ_ALLOCA
@ -453,7 +453,7 @@ fi
if test $ac_cv_func_alloca_works = yes; then
AC_DEFINE(HAVE_ALLOCA, 1,
[Define to 1 if you have `alloca', as a function or macro.])
[Define to 1 if you have 'alloca', as a function or macro.])
else
_AC_LIBOBJ_ALLOCA
fi