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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
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<head>
<title>
Autoconf Macro: ac_check_struct_for
</title>
<link rel="stylesheet" type="text/css" href="ac-archive.css">
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<body>
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<a href="http://autoconf-archive.cryp.to/ac_check_struct_for.m4">Download
M4 Source</a>
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<hr>
<h1>
ac_check_struct_for
</h1>
<h2>
Synopsis
</h2>
<p class="indent" style="white-space:nowrap;">
<code>AC_CHECK_STRUCT_FOR(INCLUDES,STRUCT,MEMBER,DEFINE,[no])</code>
</p>
<h2>
Description
</h2>
<div class="indent">
<p>
Checks STRUCT for MEMBER and defines DEFINE if found.
</p>
</div>
<h2>
Author
</h2>
<p class="indent">
Wes Hardaker <wjhardaker@ucdavis.edu>
</p>
<h2>
Last Modified
</h2>
<p class="indent">
2000-09-19
</p>
<h2>
M4 Source Code
</h2>
<div class="indent">
<pre class="m4source">
AC_DEFUN([AC_CHECK_STRUCT_FOR],[
ac_safe_struct=`echo "$2" | sed 'y%./+-%__p_%'`
ac_safe_member=`echo "$3" | sed 'y%./+-%__p_%'`
ac_safe_all="ac_cv_struct_${ac_safe_struct}_has_${ac_safe_member}"
changequote(, )dnl
ac_uc_define=STRUCT_`echo "${ac_safe_struct}_HAS_${ac_safe_member}" | sed 'y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%'`
changequote([, ])dnl
AC_MSG_CHECKING([for $2.$3])
AC_CACHE_VAL($ac_safe_all,
[
if test "x$4" = "x"; then
defineit="= 0"
elif test "x$4" = "xno"; then
defineit=""
else
defineit="$4"
fi
AC_TRY_COMPILE([
$1
],[
struct $2 testit;
testit.$3 $defineit;
], eval "${ac_safe_all}=yes", eval "${ac_safe_all}=no" )
])
if eval "test \"x$`echo ${ac_safe_all}`\" = \"xyes\""; then
AC_MSG_RESULT(yes)
AC_DEFINE_UNQUOTED($ac_uc_define)
else
AC_MSG_RESULT(no)
fi
])
</pre>
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