23 lines
662 B
Plaintext
23 lines
662 B
Plaintext
dnl $Id: need-proto.m4 14166 2004-08-26 12:35:42Z joda $
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dnl
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dnl
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dnl Check if we need the prototype for a function
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dnl
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dnl AC_NEED_PROTO(includes, function)
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AC_DEFUN([AC_NEED_PROTO], [
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if test "$ac_cv_func_$2+set" != set -o "$ac_cv_func_$2" = yes; then
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AC_CACHE_CHECK([if $2 needs a prototype], ac_cv_func_$2_noproto,
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[$1
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struct foo { int foo; } xx;
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extern int $2 (struct foo*);]],[[$2(&xx)]])],
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[eval "ac_cv_func_$2_noproto=yes"],
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[eval "ac_cv_func_$2_noproto=no"]))
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if test "$ac_cv_func_$2_noproto" = yes; then
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AC_DEFINE(AS_TR_CPP(NEED_[]$2[]_PROTO), 1,
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[define if the system is missing a prototype for $2()])
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fi
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fi
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])
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