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dnl $1: linker lib name
dnl $2: included file
dnl $3: tested class
dnl $4: emitted variable
AC_DEFUN([AC_CPP_CHECK_CLASS],
[AC_LANG_PUSH([C++])
SAVED_LDFLAGS=$LDFLAGS
LDFLAGS="$LDFLAGS -l$1"
AC_MSG_CHECKING([for class $3 in $1 library])
AC_LINK_IFELSE(
[AC_LANG_PROGRAM([#include <$2>],
[$3 *x = NULL])],
[TEST_LIBS="$TEST_LIBS -l$1"] [RESULT=1],
[RESULT=])
if test -z $RESULT; then
AC_MSG_RESULT([not found])
else
AC_DEFINE([$4], [1], [Defined if class $3 has been found in $1 library])
AC_MSG_RESULT([ok])
fi
$4=$RESULT
AC_SUBST([$4])
LDFLAGS=$SAVED_LDFLAGS
AC_LANG_POP([C++])])
|
