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From 6f2eb03433bcb2d3c351efed848a1f8554a7ff78 Mon Sep 17 00:00:00 2001
From: Karel Zak <kzak@redhat.com>
Date: Mon, 20 Feb 2017 14:17:37 +0100
Subject: [PATCH] build-sys: fix --disable-all-programs --enable-schedutils
* add UL_ENABLE_ALIAS(NAME, MASTERNAME) to initialize $enable_<name>
according to MASTERNAME. Note that we have to use $build_<mastername>,
the $enable_<mastername> is just AC_ARG_ENABLE() stuff only. The
$build_ is evaluated and modified by our UL_...() functions.
* add enable-schedutils.conf to have build-system regression test for
this use-case
Addresses: https://github.com/karelzak/util-linux/issues/415
Signed-off-by: Karel Zak <kzak@redhat.com>
---
configure.ac | 14 ++++++++------
m4/ul.m4 | 15 +++++++++++++++
tools/config-gen.d/enable-schedutils.conf | 3 +++
3 files changed, 26 insertions(+), 6 deletions(-)
create mode 100644 tools/config-gen.d/enable-schedutils.conf
diff --git a/configure.ac b/configure.ac
index ad241fe..be282f0 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1909,8 +1909,9 @@ AC_ARG_ENABLE([schedutils],
)
UL_BUILD_INIT([schedutils])
-UL_BUILD_INIT([ionice], [check])
-UL_REQUIRES_BUILD([ionice], [schedutils])
+
+UL_ENABLE_ALIAS([ionice], [schedutils])
+UL_BUILD_INIT([ionice])
UL_REQUIRES_SYSCALL_CHECK([ionice],
[UL_CHECK_SYSCALL([ioprio_set],
[alpha], [442],
@@ -1937,8 +1938,9 @@ UL_REQUIRES_SYSCALL_CHECK([ionice],
AM_CONDITIONAL([BUILD_IONICE], [test "x$build_ionice" = xyes])
-UL_BUILD_INIT([taskset], [check])
-UL_REQUIRES_BUILD([taskset], [schedutils])
+
+UL_ENABLE_ALIAS([taskset], [schedutils])
+UL_BUILD_INIT([taskset])
UL_REQUIRES_HAVE([taskset], [cpu_set_t], [cpu_set_t type])
UL_REQUIRES_SYSCALL_CHECK([taskset],
[UL_CHECK_SYSCALL([sched_getaffinity])],
@@ -1950,8 +1952,8 @@ have_schedsetter=no
AS_IF([test "x$ac_cv_func_sched_setscheduler" = xyes], [have_schedsetter=yes],
[test "x$ac_cv_func_sched_setattr" = xyes], [have_schedsetter=yes])
-UL_BUILD_INIT([chrt], [check])
-UL_REQUIRES_BUILD([chrt], [schedutils])
+UL_ENABLE_ALIAS([chrt], [schedutils])
+UL_BUILD_INIT([chrt])
UL_REQUIRES_HAVE([chrt], [schedsetter], [sched_set functions])
AM_CONDITIONAL([BUILD_CHRT], [test "x$build_chrt" = xyes])
diff --git a/m4/ul.m4 b/m4/ul.m4
index f8a0dd7..ed7227c 100644
--- a/m4/ul.m4
+++ b/m4/ul.m4
@@ -429,6 +429,21 @@ AC_DEFUN([UL_DEFAULT_ENABLE], [
fi
])
+
+dnl UL_ENABLE_ALIAS(NAME, MASTERNAME)
+dnl
+dnl Initializes $enable_<name> variable according to $build_<mastername>. This
+dnl is usefull for example if you want to use one --enable-mastername option
+dnl for group of programs.
+dnl
+AC_DEFUN([UL_ENABLE_ALIAS], [
+ m4_define([suffix], $1)
+ m4_define([mastersuffix], $2)
+
+ enable_[]suffix=$build_[]mastersuffix
+])
+
+
dnl UL_NCURSES_CHECK(NAME)
dnl
dnl Initializes $have_<name>, NCURSES_LIBS and NCURSES_CFLAGS variables according to
diff --git a/tools/config-gen.d/enable-schedutils.conf b/tools/config-gen.d/enable-schedutils.conf
new file mode 100644
index 0000000..08deee4
--- /dev/null
+++ b/tools/config-gen.d/enable-schedutils.conf
@@ -0,0 +1,3 @@
+include:disable-all.conf
+
+--enable-schedutils
--
2.7.4
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