On 21.03.2016 06:21, Roman Bogorodskiy wrote:
Currently nss plugin is automatically enabled if nss.h header exists and --without-nss-plugin is not specified. However, presence of the nss.h header does not guarantee a compatible interface, so check for struct gaih_addrtuple to make sure it's enabled only on platforms where it could be built. --- m4/virt-nss.m4 | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/m4/virt-nss.m4 b/m4/virt-nss.m4 index 3fa4ad3..bc054db 100644 --- a/m4/virt-nss.m4 +++ b/m4/virt-nss.m4 @@ -25,12 +25,14 @@ AC_DEFUN([LIBVIRT_CHECK_NSS],[
fail=0 if test "x$with_nss_plugin" != "xno" ; then - AC_CHECK_HEADERS([nss.h], [ + AC_CHECK_TYPE([struct gaih_addrtuple], [ with_nss_plugin=yes ],[ if test "x$with_nss_plugin" = "xyes" ; then fail = 1 fi + ],[ + #include <nss.h> ])
if test $fail = 1 ; then
While this would fix the build, it would disable the whole feature on freebsd. The problem is with the structure that is needed just for _nss_libvirt_gethostbyname4_r(). Should we change the code in that way that the function is built conditionally when the structure is present? That way we still could have _gethostbyname3_r() on systems providing the header file but not having the structure. Michal