mirror of
https://github.com/coreutils/coreutils.git
synced 2024-11-28 20:44:42 +08:00
29 lines
948 B
Plaintext
29 lines
948 B
Plaintext
#serial 2
|
|
|
|
dnl From Jim Meyering.
|
|
dnl
|
|
dnl See if the glibc *_unlocked I/O macros are available.
|
|
dnl Use only those *_unlocked macros that are declared.
|
|
dnl
|
|
|
|
AC_DEFUN(jm_FUNC_GLIBC_UNLOCKED_IO,
|
|
[
|
|
io_functions='clearerr_unlocked feof_unlocked ferror_unlocked
|
|
fflush_unlocked fputc_unlocked fread_unlocked fwrite_unlocked
|
|
getc_unlocked getchar_unlocked putc_unlocked putchar_unlocked'
|
|
for jm_io_func in $io_functions; do
|
|
# Check for the existence of each function only if its declared.
|
|
# Otherwise, we'd get the Solaris5.5.1 functions that are not
|
|
# declared, and that have been removed from Solaris5.6. The resulting
|
|
# 5.5.1 binaries would not run on 5.6 due to shared library differences.
|
|
jm_CHECK_DECLARATIONS([#include <stdio.h>
|
|
], $jm_io_func,
|
|
jm_declared=yes,
|
|
jm_declared=no)
|
|
if test $jm_declared = yes; then
|
|
AC_CHECK_FUNCS($jm_io_func)
|
|
fi
|
|
done
|
|
]
|
|
)
|