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Modernize: use sigaction() whenever possible. Remove uses of common.

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bsd_signal() may not be defined, and there is really no reason to even
try to use it if sigaction() is avaiable; using sigaction() guarantees
the semantics we really want.

Replace uses of common variables with explicit instantiation and
extern declarations in a header file.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
This commit is contained in:
H. Peter Anvin 2024-05-29 15:34:57 -07:00
parent 9c0908a778
commit 1f4b33a1f7
9 changed files with 64 additions and 42 deletions
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4
configure.ac
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@ -89,6 +89,9 @@ AC_CHECK_FUNCS(setreuid)
AC_CHECK_FUNCS(setregid)
AC_CHECK_FUNCS(initgroups)
AC_CHECK_FUNCS(setgroups)
AC_CHECK_FUNCS(sigaction)
AC_CHECK_FUNCS(bsd_signal)
AC_CHECK_TYPES(sighandler_t)
dnl Solaris 8 has [u]intmax_t but not strtoumax(). How utterly braindamaged.
AC_CHECK_FUNCS(strtoumax)
@ -120,7 +123,6 @@ OBJROOT=`pwd`
XTRA=false
PA_SEARCH_LIBS_AND_ADD(xmalloc, iberty)
PA_SEARCH_LIBS_AND_ADD(xstrdup, iberty)
PA_SEARCH_LIBS_AND_ADD(bsd_signal, bsd, bsdsignal)
PA_SEARCH_LIBS_AND_ADD(getopt_long, getopt, getopt_long)
PA_SEARCH_LIBS_AND_ADD(getaddrinfo, [nsl resolv])
if $pa_add_getaddrinfo