X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=configure.ac;h=945adfcbee9632ef8e24a96ae5603c135ed838dc;hp=84644e163fed7ed76f7def335cc5475884cf5dc7;hb=65e3a2cf7c3b399853dd309f702ca5078b7d16ea;hpb=d6bc8348d5be8576a475ac8ced2b0146e60fb71f

diff --git a/configure.ac b/configure.ac
index 84644e163..945adfcbe 100644
--- a/configure.ac
+++ b/configure.ac
@@ -183,7 +183,6 @@ CC_CHECK_FLAGS_APPEND([with_cflags], [CFLAGS], [\
         -Wno-unused-parameter \
         -Wno-missing-field-initializers \
         -Wno-unused-result \
-        -Wno-typedef-redefinition \
         -Werror=overflow \
         -Wdate-time \
         -Wnested-externs \
@@ -198,6 +197,13 @@ CC_CHECK_FLAGS_APPEND([with_cflags], [CFLAGS], [\
         -fstack-protector-strong \
         -fPIE \
         --param=ssp-buffer-size=4])
+
+AS_CASE([$CC], [*clang*],
+        [CC_CHECK_FLAGS_APPEND([with_cppflags], [CPPFLAGS], [\
+               -Wno-typedef-redefinition \
+               -Wno-gnu-variable-sized-type-not-at-end \
+        ])])
+
 AS_CASE([$CFLAGS], [*-O[[12345\ ]]*],
         [CC_CHECK_FLAGS_APPEND([with_cflags], [CFLAGS], [\
                -flto -ffat-lto-objects])],
@@ -283,6 +289,7 @@ AM_CONDITIONAL([HAVE_PYTHON_DEVEL], [test "$have_python_devel" = "yes"])
 AC_SEARCH_LIBS([dlsym], [dl], [], [AC_MSG_ERROR([*** Dynamic linking loader library not found])])
 AC_CHECK_HEADERS([sys/capability.h], [], [AC_MSG_ERROR([*** POSIX caps headers not found])])
 AC_CHECK_HEADERS([linux/btrfs.h], [], [])
+AC_CHECK_HEADERS([linux/memfd.h], [], [])
 
 # unconditionally pull-in librt with old glibc versions
 AC_SEARCH_LIBS([clock_gettime], [rt], [], [])
@@ -300,6 +307,7 @@ AC_SUBST(RT_LIBS)
 LIBS="$save_LIBS"
 
 AC_CHECK_FUNCS([fanotify_init fanotify_mark])
+AC_CHECK_FUNCS([memfd_create])
 AC_CHECK_FUNCS([__secure_getenv secure_getenv])
 AC_CHECK_DECLS([gettid, pivot_root, name_to_handle_at, setns, LO_FLAGS_PARTSCAN],
                [], [], [[
@@ -345,6 +353,16 @@ AS_IF([test "x$enable_dbus" != "xno"], [
                 [AC_MSG_ERROR([*** dbus-1 support requested but libraries not found])])])
 AM_CONDITIONAL(HAVE_DBUS, [test "$have_dbus" = "yes"])
 
+# ------------------------------------------------------------------------------
+have_utmp=yes
+AC_ARG_ENABLE([utmp], AS_HELP_STRING([--disable-utmp], [disable utmp/wtmp log handling]),
+        AS_CASE("x${enableval}",
+                [xyes], [have_utmp=yes],
+                [xno],  [have_utmp=no],
+                AC_MSG_ERROR(bad value ${enableval} for --enable-utmp)))
+AS_IF([test "x$have_utmp" = "xyes"], [AC_DEFINE(HAVE_UTMP, 1, [Define if utmp/wtmp support is enabled])])
+AM_CONDITIONAL([HAVE_UTMP], [test "x$have_utmp" = "xyes"])
+
 # ------------------------------------------------------------------------------
 have_compat_libs=no
 AC_ARG_ENABLE([compat_libs], AS_HELP_STRING([--enable-compat-libs],[Enable creation of compatibility libraries]),
@@ -1372,6 +1390,7 @@ AC_MSG_RESULT([
         Split /usr:              ${enable_split_usr}
         SysV compatibility:      ${SYSTEM_SYSV_COMPAT}
         compatibility libraries: ${have_compat_libs}
+        utmp/wtmp support:       ${have_utmp}
 
         prefix:                  ${prefix}
         rootprefix:              ${with_rootprefix}