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Jim Meyering
2001-07-02 07:40:17 +00:00
parent 5a3ec90c81
commit 39b654069a
1 changed files with 0 additions and 35 deletions
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35
m4/jm-glibc-io.m4
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@@ -1,35 +0,0 @@
#serial 4
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,
[
# Kludge (not executed) to make autoheader do the right thing.
if test a = b; then
AC_CHECK_DECLS([clearerr_unlocked, feof_unlocked, ferror_unlocked,
fflush_unlocked, fputc_unlocked, fread_unlocked, fwrite_unlocked,
getc_unlocked, getchar_unlocked, putc_unlocked, putchar_unlocked])
fi
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 $io_functions; do
# Check for the existence of each function only if its declared.
# Otherwise, we'd get the Solaris5.5.1 functions that are not
# declared, and that have been removed from Solaris5.6. The resulting
# 5.5.1 binaries would not run on 5.6 due to shared library differences.
AC_CHECK_DECLS([$jm_io_func],
jm_declared=yes,
jm_declared=no,
[#include <stdio.h>])
if test $jm_declared = yes; then
AC_CHECK_FUNCS($jm_io_func)
fi
done
]
)