c83d4f3dbb
git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@4191 ec53bebd-3082-4978-b11e-865c3cabbd6b
31 lines
760 B
Plaintext
31 lines
760 B
Plaintext
dnl $Id$
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dnl
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dnl
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dnl Check if a particular struct has a particular field
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dnl
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dnl AC_HAVE_STRUCT_FIELD(includes, struct, type, field)
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AC_DEFUN(AC_HAVE_STRUCT_FIELD, [
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AC_MSG_CHECKING([if $2 has a field $4])
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AC_CACHE_VAL(ac_cv_struct_$2_$4, [
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AC_TRY_COMPILE([$1],
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[struct $2 foo; $3 bar = foo.$4; ],
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eval "ac_cv_struct_$2_$4=yes",
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eval "ac_cv_struct_$2_$4=no")
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])
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changequote(, )dnl
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eval "ac_tr_var=HAVE_STRUCT_`echo $2 | tr '[a-z]' '[A-Z]'`_`echo $4 | tr '[a-z]' '[A-Z]'`"
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changequote([, ])dnl
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define([foo], [[HAVE_STRUCT_]translit($2, [a-z], [A-Z])[_]translit($4, [a-z], [A-Z])])
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: << END
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@@@syms="$syms foo"@@@
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END
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undefine([foo])
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AC_MSG_RESULT($ac_cv_struct_$2_$4)
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if eval "test \"\$ac_cv_struct_$2_$4\" = yes"; then
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AC_DEFINE_UNQUOTED($ac_tr_var)
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fi
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])
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