1 # libcap-ng.m4 - Checks for the libcap-ng support 2 # Copyright (c) 2009 Steve Grubb sgrubb (a] redhat.com 3 # 4 AC_DEFUN([LIBCAP_NG_PATH], 5 [ 6 AC_ARG_WITH(libcap-ng, 7 [ --with-libcap-ng=[auto/yes/no] Add Libcap-ng support [default=auto]],, 8 with_libcap_ng=auto) 9 10 # Check for Libcap-ng API 11 # 12 # libcap-ng detection 13 14 if test x$with_libcap_ng = xno ; then 15 have_libcap_ng=no; 16 else 17 # Start by checking for header file 18 AC_CHECK_HEADER(cap-ng.h, capng_headers=yes, capng_headers=no) 19 20 # See if we have libcap-ng library 21 AC_CHECK_LIB(cap-ng, capng_clear, 22 CAPNG_LDADD=-lcap-ng,) 23 24 # Check results are usable 25 if test x$with_libcap_ng = xyes -a x$CAPNG_LDADD = x ; then 26 AC_MSG_ERROR(libcap-ng support was requested and the library was not found) 27 fi 28 if test x$CAPNG_LDADD != x -a $capng_headers = no ; then 29 AC_MSG_ERROR(libcap-ng libraries found but headers are missing) 30 fi 31 fi 32 AC_SUBST(CAPNG_LDADD) 33 AC_MSG_CHECKING(whether to use libcap-ng) 34 if test x$CAPNG_LDADD != x ; then 35 AC_DEFINE(HAVE_LIBCAP_NG,1,[libcap-ng support]) 36 AC_MSG_RESULT(yes) 37 else 38 AC_MSG_RESULT(no) 39 fi 40 ]) 41
