diff options
Diffstat (limited to 'm4')
| -rw-r--r-- | m4/fpending.m4 | 72 |
1 files changed, 0 insertions, 72 deletions
diff --git a/m4/fpending.m4 b/m4/fpending.m4 deleted file mode 100644 index d086ac635..000000000 --- a/m4/fpending.m4 +++ /dev/null @@ -1,72 +0,0 @@ -#serial 4 - -dnl From Jim Meyering -dnl Using code from emacs, based on suggestions from Paul Eggert -dnl and Ulrich Drepper. - -dnl Find out how to determine the number of pending output bytes on a stream. -dnl glibc (2.1.93 and newer) and Solaris provide __fpending. On other systems, -dnl we have to grub around in the FILE struct. - -AC_DEFUN([gl_FUNC_FPENDING], -[ - AC_CHECK_HEADERS(stdio_ext.h) - AC_REPLACE_FUNCS([__fpending]) - fp_headers=' -# if HAVE_STDIO_EXT_H -# include <stdio_ext.h> -# endif -' - AC_CHECK_DECLS([__fpending], , , $fp_headers) - if test $ac_cv_func___fpending = no; then - AC_CACHE_CHECK( - [how to determine the number of pending output bytes on a stream], - ac_cv_sys_pending_output_n_bytes, - [ - for ac_expr in \ - \ - '# glibc2' \ - 'fp->_IO_write_ptr - fp->_IO_write_base' \ - \ - '# traditional Unix' \ - 'fp->_ptr - fp->_base' \ - \ - '# BSD' \ - 'fp->_p - fp->_bf._base' \ - \ - '# SCO, Unixware' \ - 'fp->__ptr - fp->__base' \ - \ - '# old glibc?' \ - 'fp->__bufp - fp->__buffer' \ - \ - '# old glibc iostream?' \ - 'fp->_pptr - fp->_pbase' \ - \ - '# VMS' \ - '(*fp)->_ptr - (*fp)->_base' \ - \ - '# e.g., DGUX R4.11; the info is not available' \ - 1 \ - ; do - - # Skip each embedded comment. - case "$ac_expr" in '#'*) continue;; esac - - AC_TRY_COMPILE( - [#include <stdio.h> - ], - [FILE *fp = stdin; (void) ($ac_expr);], - fp_done=yes - ) - test "$fp_done" = yes && break - done - - ac_cv_sys_pending_output_n_bytes=$ac_expr - ] - ) - AC_DEFINE_UNQUOTED(PENDING_OUTPUT_N_BYTES, - $ac_cv_sys_pending_output_n_bytes, - [the number of pending output bytes on stream `fp']) - fi -]) |