49 lines
1.4 KiB
Plaintext
49 lines
1.4 KiB
Plaintext
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dnl @synopsis AC_CHECK_SYMBOL(SYMBOL, HEADER... [,ACTION-IF-FOUND [,ACTION-IF-NOT-FOUND]])
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dnl
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dnl a wrapper around AC_EGREP_HEADER the shellvar $ac_found will hold
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dnl the HEADER-name that had been containing the symbol. This value is
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dnl shown to the user.
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dnl
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dnl @category C
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dnl @author Guido U. Draheim <guidod@gmx.de>
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dnl @version 2006-10-13
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dnl @license GPLWithACException
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AC_DEFUN([AC_CHECK_SYMBOL],
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[AC_MSG_CHECKING([for $1 in $2])
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AC_CACHE_VAL(ac_cv_func_$1,
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[AC_REQUIRE_CPP()dnl
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changequote(, )dnl
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symbol="[^a-zA-Z_0-9]$1[^a-zA-Z_0-9]"
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changequote([, ])dnl
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ac_found=no
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for ac_header in $2 ; do
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ac_safe=`echo "$ac_header" | sed 'y%./+-%__p_%' `
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if test $ac_found != "yes" ; then
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if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
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AC_EGREP_HEADER( $symbol, $ac_header, [ac_found="$ac_header"] )
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fi
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fi
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done
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if test "$ac_found" != "no" ; then
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AC_MSG_RESULT($ac_found)
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ifelse([$3], , :, [$3])
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else
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AC_MSG_RESULT(no)
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ifelse([$4], , , [$4
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])dnl
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fi
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])])
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dnl AC_CHECK_SYMBOLS( symbol..., header... [, action-if-found [, action-if-not-found]])
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AC_DEFUN([AC_CHECK_SYMBOLS],
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[for ac_func in $1
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do
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P4_CHECK_SYMBOL($ac_func, $2,
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[changequote(, )dnl
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ac_tr_func=HAVE_`echo $ac_func | sed -e 'y:abcdefghijklmnopqrstuvwxyz:ABCDEFGHIJKLMNOPQRSTUVWXYZ:' -e 's:[[^A-Z0-9]]:_:'`
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changequote([, ])dnl
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AC_DEFINE_UNQUOTED($ac_tr_func) $2], $3)dnl
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done
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])
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