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29 lines
942 B
Plaintext
29 lines
942 B
Plaintext
#serial 3
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dnl From Jim Meyering.
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dnl
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dnl See if the glibc *_unlocked I/O macros are available.
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dnl Use only those *_unlocked macros that are declared.
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dnl
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AC_DEFUN(jm_FUNC_GLIBC_UNLOCKED_IO,
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[
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io_functions='clearerr_unlocked feof_unlocked ferror_unlocked
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fflush_unlocked fputc_unlocked fread_unlocked fwrite_unlocked
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getc_unlocked getchar_unlocked putc_unlocked putchar_unlocked'
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for jm_io_func in $io_functions; do
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# Check for the existence of each function only if its declared.
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# Otherwise, we'd get the Solaris5.5.1 functions that are not
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# declared, and that have been removed from Solaris5.6. The resulting
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# 5.5.1 binaries would not run on 5.6 due to shared library differences.
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AC_CHECK_DECLS(($jm_io_func),
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jm_declared=yes,
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jm_declared=no,
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[#include <stdio.h>])
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if test $jm_declared = yes; then
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AC_CHECK_FUNCS($jm_io_func)
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fi
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done
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]
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)
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