c83d4f3dbb
git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@4191 ec53bebd-3082-4978-b11e-865c3cabbd6b
31 lines
669 B
Plaintext
31 lines
669 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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AC_DEFUN(AC_NEED_DECLARATION, [
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AC_MSG_CHECKING([if $3 needs a declaration])
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AC_CACHE_VAL(ac_cv_var_$3_declaration, [
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AC_TRY_COMPILE([$1],
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[$2 foo = ($2)$3; ],
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eval "ac_cv_var_$3_declaration=no",
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eval "ac_cv_var_$3_declaration=yes")
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])
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changequote(, )dnl
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eval "ac_tr_var=NEED_`echo $3 | tr '[a-z]' '[A-Z]'`_DECLARATION"
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changequote([, ])dnl
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define([foo], [NEED_]translit($3, [a-z], [A-Z])[_DECLARATION])
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: << END
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@@@syms="$syms foo"@@@
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END
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undefine([foo])
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AC_MSG_RESULT($ac_cv_var_$3_declaration)
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if eval "test \"\$ac_cv_var_$3_declaration\" = yes"; then
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AC_DEFINE_UNQUOTED($ac_tr_var)
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fi
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])
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