40 lines
1.3 KiB
Plaintext
40 lines
1.3 KiB
Plaintext
# getusershell.m4
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# serial 8
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dnl Copyright (C) 2002-2003, 2006, 2008-2024 Free Software Foundation, Inc.
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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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dnl This file is offered as-is, without any warranty.
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AC_DEFUN([gl_FUNC_GETUSERSHELL],
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[
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AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
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AC_REQUIRE([AC_CANONICAL_HOST])
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dnl Persuade glibc <unistd.h> to declare {get,set,end}usershell().
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AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
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dnl Check whether the getusershell function exists.
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AC_CHECK_FUNCS_ONCE([getusershell])
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if test $ac_cv_func_getusershell = yes; then
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HAVE_GETUSERSHELL=1
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dnl Check whether getusershell is declared.
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AC_CHECK_DECLS([getusershell])
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if test $ac_cv_have_decl_getusershell = no; then
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HAVE_DECL_GETUSERSHELL=0
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fi
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else
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HAVE_GETUSERSHELL=0
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dnl Assume that on platforms which declare it, the function exists.
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HAVE_DECL_GETUSERSHELL=0
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fi
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dnl Replace the function on musl unconditionally.
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dnl See: https://www.openwall.com/lists/musl/2024/05/18/1
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case "$host_os" in
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*-musl* | midipix*) REPLACE_GETUSERSHELL=1 ;;
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esac
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])
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# Prerequisites of lib/getusershell.c.
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AC_DEFUN([gl_PREREQ_GETUSERSHELL], [:])
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