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Diffstat (limited to 'ltdl/m4/obstack-printf.m4')
| -rwxr-xr-x | ltdl/m4/obstack-printf.m4 | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/ltdl/m4/obstack-printf.m4 b/ltdl/m4/obstack-printf.m4 new file mode 100755 index 00000000..b74a46bf --- /dev/null +++ b/ltdl/m4/obstack-printf.m4 @@ -0,0 +1,42 @@ +# obstack-printf.m4 serial 3 +dnl Copyright (C) 2008, 2009, 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, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Eric Blake. +dnl Test whether obstack_printf() exists. For now, we assume that +dnl obstack_vprintf behaves identically, so we only test for one. + +AC_DEFUN([gl_FUNC_OBSTACK_PRINTF], +[ + dnl Persuade glibc <stdio.h> to declare obstack_printf(), obstack_vprintf(). + AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) + + AC_REQUIRE([gl_STDIO_H_DEFAULTS]) + AC_CHECK_FUNCS_ONCE([obstack_printf]) + if test $ac_cv_func_obstack_printf = no ; then + gl_REPLACE_OBSTACK_PRINTF + fi + + gl_DECL_OBSTACK_PRINTF +]) + +AC_DEFUN([gl_REPLACE_OBSTACK_PRINTF], +[ + AC_REQUIRE([gl_STDIO_H_DEFAULTS]) + AC_LIBOBJ([obstack_printf]) + if test $ac_cv_func_obstack_printf = yes; then + REPLACE_OBSTACK_PRINTF=1 + fi +]) + +dnl Ensure obstack_printf() and obstack_vprintf() are declared +dnl (whether or not they are being replaced). +AC_DEFUN([gl_DECL_OBSTACK_PRINTF], +[ + AC_CHECK_DECLS_ONCE([obstack_printf]) + if test $ac_cv_have_decl_obstack_printf = no; then + HAVE_DECL_OBSTACK_PRINTF=0 + fi +]) |