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dnl dummies provided by dlfcn.c if not available
save_LIBS="$LIBS"
LIBS=""
AC_SEARCH_LIBS(dlopen, dl)
if test "$ac_cv_search_dlopen" != no; then
AC_CHECK_HEADERS(dlfcn.h)
libreplace_cv_dlfcn=no
AC_CHECK_FUNCS([dlopen dlsym dlerror dlclose],[],[libreplace_cv_dlfcn=yes])
if test x"${libreplace_cv_dlfcn}" = x"yes";then
LIBREPLACEOBJ="${LIBREPLACEOBJ} dlfcn.o"
fi
fi
LIBDL="$LIBS"
AC_SUBST(LIBDL)
LIBS="$save_LIBS"
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