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Diffstat (limited to 'm4/getusershell.m4')
| -rw-r--r-- | m4/getusershell.m4 | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/m4/getusershell.m4 b/m4/getusershell.m4 new file mode 100644 index 0000000..cd7755b --- /dev/null +++ b/m4/getusershell.m4 @@ -0,0 +1,28 @@ +# getusershell.m4 serial 7 +dnl Copyright (C) 2002-2003, 2006, 2008-2018 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. + +AC_DEFUN([gl_FUNC_GETUSERSHELL], +[ + AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) + + dnl Persuade glibc <unistd.h> to declare {get,set,end}usershell(). + AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) + + dnl Check whether the getusershell function exists. + AC_CHECK_FUNCS_ONCE([getusershell]) + if test $ac_cv_func_getusershell = yes; then + HAVE_GETUSERSHELL=1 + dnl Check whether getusershell is declared. + AC_CHECK_DECLS([getusershell]) + if test $ac_cv_have_decl_getusershell = no; then + HAVE_DECL_GETUSERSHELL=0 + fi + else + HAVE_GETUSERSHELL=0 + dnl Assume that on platforms which declare it, the function exists. + HAVE_DECL_GETUSERSHELL=0 + fi +]) |