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# secure_getenv.m4
# serial 2
dnl Copyright 2013-2025 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
dnl This file is offered as-is, without any warranty.
AC_DEFUN([gl_FUNC_SECURE_GETENV],
[
dnl Persuade glibc <stdlib.h> to declare secure_getenv().
AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
AC_REQUIRE([gl_STDLIB_H_DEFAULTS])
AC_CHECK_FUNCS_ONCE([secure_getenv])
if test $ac_cv_func_secure_getenv = no; then
HAVE_SECURE_GETENV=0
fi
])
# Prerequisites of lib/secure_getenv.c.
AC_DEFUN([gl_PREREQ_SECURE_GETENV], [
AC_CHECK_FUNCS([__secure_getenv])
if test $ac_cv_func___secure_getenv = no; then
gl_CHECK_FUNCS_ANDROID([issetugid], [[#include <unistd.h>]])
fi
AC_CHECK_FUNCS_ONCE([getuid geteuid getgid getegid])
])
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