autotools: allow enabling dmesg with --disable-all-programs

Signed-off-by: Henrik Lindström <henrik@lxm.se>
(cherry picked from commit 42aa4cd4f6383875d4163620b0590c4ab659b68b)

diff --git a/configure.ac b/configure.ac
index ff35bc402f81921bef8ff977f302e7f929422d14..3d50532f6eae96a3024c11b9f726c16a213654cf 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -2167,7 +2167,11 @@ UL_BUILD_INIT([readprofile], [check])
 UL_REQUIRES_LINUX([readprofile])
 AM_CONDITIONAL([BUILD_READPROFILE], [test "x$build_readprofile" = xyes])
 
-UL_BUILD_INIT([dmesg], [check])
+AC_ARG_ENABLE([dmesg],
+  AS_HELP_STRING([--disable-dmesg], [do not build dmesg]),
+  [], [UL_DEFAULT_ENABLE([dmesg], [check])]
+)
+UL_BUILD_INIT([dmesg])
 UL_REQUIRES_LINUX([dmesg])
 AM_CONDITIONAL([BUILD_DMESG], [test "x$build_dmesg" = xyes])