diff options
Diffstat (limited to 'm4/ttyname_r.m4')
| -rw-r--r-- | m4/ttyname_r.m4 | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/m4/ttyname_r.m4 b/m4/ttyname_r.m4 index 7e87cc3350..ad760703ca 100644 --- a/m4/ttyname_r.m4 +++ b/m4/ttyname_r.m4 @@ -1,4 +1,4 @@ -# ttyname_r.m4 serial 5 +# ttyname_r.m4 serial 6 dnl Copyright (C) 2010 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, @@ -12,10 +12,16 @@ AC_DEFUN([gl_FUNC_TTYNAME_R], dnl ttyname_r(). AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) + AC_CHECK_DECLS_ONCE([ttyname_r]) + if test $ac_cv_have_decl_ttyname_r = no; then + HAVE_DECL_TTYNAME_R=0 + fi + AC_CHECK_FUNCS([ttyname_r]) if test $ac_cv_func_ttyname_r = no; then HAVE_TTYNAME_R=0 else + HAVE_TTYNAME_R=1 dnl On MacOS X 10.4 (and Solaris 10 without gl_USE_SYSTEM_EXTENSIONS) dnl the return type is 'char *', not 'int'. AC_CACHE_CHECK([whether ttyname_r is compatible with its POSIX signature], |