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m4/cap-ng.m4
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Steve Grubb
Detect CAPNG_AMBIENT in cap-ng.m4 to aid conditional compilation
04 окт 2020, 23:28
04 окт 2020, 23:28
39b0518
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# libcap-ng.m4 - Checks for the libcap-ng support # Copyright (c) 2009 Steve Grubb sgrubb@redhat.com # AC_DEFUN([LIBCAP_NG_PATH], [ AC_ARG_WITH(libcap-ng, [ --with-libcap-ng=[auto/yes/no] Add Libcap-ng support [default=auto]],, with_libcap_ng=auto) # Check for Libcap-ng API # # libcap-ng detection if test x$with_libcap_ng = xno ; then have_libcap_ng=no; else # Start by checking for header file AC_CHECK_HEADER(cap-ng.h, capng_headers=yes, capng_headers=no) # See if we have libcap-ng library AC_CHECK_LIB(cap-ng, capng_clear, CAPNG_LDADD=-lcap-ng,) # Check results are usable if test x$with_libcap_ng = xyes -a x$CAPNG_LDADD = x ; then AC_MSG_ERROR(libcap-ng support was requested and the library was not found) fi if test x$CAPNG_LDADD != x -a $capng_headers = no ; then AC_MSG_ERROR(libcap-ng libraries found but headers are missing) fi fi AC_SUBST(CAPNG_LDADD) AC_MSG_CHECKING(whether to use libcap-ng) if test x$CAPNG_LDADD != x ; then AC_DEFINE(HAVE_LIBCAP_NG,1,[libcap-ng support]) AC_CHECK_DECLS([CAPNG_AMBIENT], [], [], [[#include <cap-ng.h>]]) AC_MSG_RESULT(yes) else AC_MSG_RESULT(no) fi ])