util: minor cleanups for loop_read() and friends

[elogind.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index 6446b3711e40cd8d74b27f8550dd040cc56a3729..57bbb1d002807bf2bda36598a309046853bc4e3c 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -20,7 +20,7 @@
 AC_PREREQ([2.64])
 
 AC_INIT([elogind],
-        [226.2],
+        [226.5],
         [https://github.com/elogind/elogind/issues],
         [elogind],
         [https://github.com/elogind/elogind])
@@ -113,8 +113,15 @@ fi
 # ------------------------------------------------------------------------------
 # Find running cgroup controller
 with_cgroupctrl=
-AS_IF(  [test -f /proc/self/cgroup],
-        [with_cgroupctrl=`grep "^1:" /proc/self/cgroup | cut -d ':' -f 2`])
+AS_IF(  [test -f /proc/self/cgroup], [
+        # If the init system is a cgroup controler, it will be position 1.
+        # Secondary controllers, like cgmanager, do not work.
+        with_cgroupctrl=`grep "^1:name=" /proc/self/cgroup | cut -d ':' -f 2`
+        AS_IF(  [test -z "$with_cgroupctrl"], [
+                # Try to be our own cgroup controller
+                with_cgroupctrl="name=elogind"
+        ])
+])
 AS_IF(  [test -z "$with_cgroupctrl"],
         AC_MSG_ERROR([No running cgroup controller found]))
 
@@ -243,7 +250,8 @@ AC_CHECK_SIZEOF(rlim_t,,[
 ])
 
 GPERF_TEST="$(echo foo,bar | ${GPERF} -L ANSI-C)"
-
+save_CFLAGS="$CFLAGS"
+CFLAGS="$CFLAGS -Wno-error"
 AC_COMPILE_IFELSE(
         [AC_LANG_PROGRAM([
                 #include <string.h>
@@ -261,6 +269,7 @@ AC_COMPILE_IFELSE(
                 [AC_MSG_ERROR([** unable to determine gperf len type])]
         )]
 )
+CFLAGS="$save_CFLAGS"
 
 AC_DEFINE_UNQUOTED([GPERF_LEN_TYPE], [$GPERF_LEN_TYPE], [gperf len type])
 
@@ -296,6 +305,13 @@ AC_CHECK_HEADERS([sys/capability.h], [], [AC_MSG_ERROR([*** POSIX caps headers n
 AC_CHECK_HEADERS([linux/btrfs.h], [], [])
 AC_CHECK_HEADERS([linux/memfd.h], [], [])
 
+AC_CHECK_HEADERS([printf.h], [have_printf_h=yes], [have_printf_h=no])
+AS_IF([test x$have_printf_h = xyes], [
+        AC_DEFINE(HAVE_PRINTF_H, 1, [Define if printf.h was found])
+])
+
+
+
 # unconditionally pull-in librt with old glibc versions
 dnl AC_SEARCH_LIBS([clock_gettime], [rt], [], [])
 dnl AC_SEARCH_LIBS([mq_unlink], [rt], [], [])