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Wrap ttyname_r check in AC_CACHE_CHECK (#14417)

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This enables cross-compiling to set the php_cv_func_ttyname_r variable
for adjusting the configuration manually.

In case of cross-compiling the AC_CHECK_FUNCS is additionally used to
guess whether the target has the ttyname_r. Current platforms mostly
either have working ttyname_r compatible with POSIX or not.
This commit is contained in:
Peter Kokot
2024-06-01 22:42:22 +02:00
committed by GitHub
parent bc6f3334d1
commit 8112889a73
1 changed files with 14 additions and 18 deletions
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32
ext/posix/config.m4
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@@ -27,24 +27,20 @@ dnl (first argument is not validated and has different error).
AS_IF([command -v ldd >/dev/null && ldd --version 2>&1 | grep -q "^musl"],[],
[AC_CHECK_FUNCS(pathconf fpathconf)])
AC_MSG_CHECKING([for working ttyname_r() implementation])
AC_RUN_IFELSE([AC_LANG_SOURCE([[
#include <unistd.h>
int main(int argc, char *argv[])
{
char buf[64];
return !ttyname_r(0, buf, 64);
}
]])],[
AC_MSG_RESULT([yes])
AC_DEFINE(HAVE_TTYNAME_R, 1, [Whether you have a working ttyname_r])
],[
AC_MSG_RESULT([no, posix_ttyname() will be thread-unsafe])
], [
AC_MSG_RESULT([no, cannot detect working ttyname_r() when cross compiling. posix_ttyname() will be thread-unsafe])
])
AC_CACHE_CHECK([for working ttyname_r() implementation],
[php_cv_func_ttyname_r],
[AC_RUN_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>], [[
char buf[64];
return !ttyname_r(0, buf, 64);
]])],
[php_cv_func_ttyname_r=yes],
[php_cv_func_ttyname_r=no],
[AC_CHECK_FUNC([ttyname_r],
[php_cv_func_ttyname_r=yes], [php_cv_func_ttyname_r=no])])])
AS_VAR_IF([php_cv_func_ttyname_r], [yes],
[AC_DEFINE([HAVE_TTYNAME_R], [1],
[Define to 1 if you have a working ttyname_r.])],
[AC_MSG_NOTICE([posix_ttyname() will be thread-unsafe])])
AC_CHECK_MEMBERS([struct utsname.domainname],,,[
#ifndef _GNU_SOURCE