c83d4f3dbb
git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@4191 ec53bebd-3082-4978-b11e-865c3cabbd6b
31 lines
693 B
Plaintext
31 lines
693 B
Plaintext
dnl $Id$
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dnl
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dnl
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dnl Check if we need the declaration of a variable
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dnl
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dnl AC_HAVE_DECLARATION(includes, variable)
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AC_DEFUN(AC_CHECK_DECLARATION, [
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AC_MSG_CHECKING([if $2 is properly declared])
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AC_CACHE_VAL(ac_cv_var_$2_declaration, [
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AC_TRY_COMPILE([$1
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extern struct { int foo; } $2;],
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[$2.foo = 1;],
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eval "ac_cv_var_$2_declaration=no",
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eval "ac_cv_var_$2_declaration=yes")
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])
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ac_tr_var=[HAVE_]translit($2, [a-z], [A-Z])[_DECLARATION]
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define([foo], [HAVE_]translit($2, [a-z], [A-Z])[_DECLARATION])
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: << END
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@@@syms="$syms foo"@@@
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END
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undefine([foo])
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AC_MSG_RESULT($ac_cv_var_$2_declaration)
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if eval "test \"\$ac_cv_var_$2_declaration\" = yes"; then
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AC_DEFINE_UNQUOTED($ac_tr_var)
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fi
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])
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