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20 lines
493 B
Text
20 lines
493 B
Text
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dnl
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dnl Check for a symbol
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dnl
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AC_DEFUN(AC_CHECK_SYMBOL, [dnl
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AC_MSG_CHECKING(for $1)
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AC_CACHE_VAL(ac_cv_check_symbol_$1, [dnl
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AC_TRY_LINK(,
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changequote(,)dnl
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extern char *$1[]; puts(*$1);,
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changequote([,])dnl
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ac_cv_check_symbol_$1=yes, ac_cv_check_symbol_$1=no)])
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if test "$ac_cv_check_symbol_$1" = yes; then
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changequote(,)dnl
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ac_tr_symbol=`echo $1 | tr '[a-z]' '[A-Z]'`
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changequote([,])dnl
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AC_DEFINE_UNQUOTED(HAVE_${ac_tr_symbol})
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fi
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AC_MSG_RESULT($ac_cv_check_symbol_$1)])dnl
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dnl
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