f5da09d81b
git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@14149 ec53bebd-3082-4978-b11e-865c3cabbd6b
24 lines
649 B
Plaintext
24 lines
649 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_COMPILE_IFELSE([AC_LANG_SOURCE([[$1
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extern struct { int foo; } $2;]],[[$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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define(foo, [HAVE_]translit($2, [a-z], [A-Z])[_DECLARATION])
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AC_MSG_RESULT($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(foo, 1, [define if your system declares $2])
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fi
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undefine([foo])
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])
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