[ptxdist] [PATCH 1/2] lvm2: make libaio dependency conditional

["Sven Püschel" <s.pueschel@pengutronix.de>]

When only using the device-mapper related part of lvm2, libaio is not
required. This requires us to only use the [install_]device-mapper
make targets to avoid trying to compile the lvm2 tools, which depend on
libaio.

Also move the lvm2 configuration file to the LVM_TOOLS option, as it
won't be built by the device-mapper target and doesn't seem to be
relevant for dmsetup alone.

Signed-off-by: Sven Püschel <s.pueschel@pengutronix.de>
---
 rules/lvm2.in   | 2 +-
 rules/lvm2.make | 7 ++++++-
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/rules/lvm2.in b/rules/lvm2.in
index f0b8123fc..dc1724ecc 100644
--- a/rules/lvm2.in
+++ b/rules/lvm2.in
@@ -4,7 +4,6 @@ menuconfig LVM2
 	tristate
 	select LIBC_DL
 	select GCCLIBS_GCC_S
-	select LIBAIO
 	select READLINE
 	select NCURSES
 	select SYSTEMD if LVM2_SYSTEMD
@@ -19,6 +18,7 @@ if LVM2
 config LVM2_LVM_TOOLS
 	bool
 	default y
+	select LIBAIO
 	prompt "install lvm tools"
 	help
 	  If disabled, only dmsetup and the dm-mapper library are installed.
diff --git a/rules/lvm2.make b/rules/lvm2.make
index 6e781c66f..d45c89356 100644
--- a/rules/lvm2.make
+++ b/rules/lvm2.make
@@ -90,6 +90,11 @@ LVM2_CONF_OPT := \
 	--with-device-gid=$(PTXCONF_LVM2_DEVICE_GID) \
 	--with-device-mode=$(PTXCONF_LVM2_DEVICE_MODE)
 
+ifndef PTXCONF_LVM2_LVM_TOOLS
+LVM2_MAKE_OPT := device-mapper
+LVM2_INSTALL_OPT := install_device-mapper
+endif
+
 # ----------------------------------------------------------------------------
 # Target-Install
 # ----------------------------------------------------------------------------
@@ -153,9 +158,9 @@ ifdef PTXCONF_LVM2_LVM_TOOLS
 	@$(call install_link, lvm2, lvm, /usr/sbin/vgs)
 	@$(call install_link, lvm2, lvm, /usr/sbin/vgscan)
 	@$(call install_link, lvm2, lvm, /usr/sbin/vgsplit)
-endif
 
 	@$(call install_alternative, lvm2, 0, 0, 0644, /etc/lvm/lvm.conf)
+endif
 
 	@$(call install_lib, lvm2, 0, 0, 0644, libdevmapper)
 	@$(call install_lib, lvm2, 0, 0, 0644, libdevmapper-event)
-- 
2.47.3