[PATCH 02/13] kernel: Build bin2c based on config option CONFIG_BUILD_BIN2C

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currently bin2c builds only if CONFIG_IKCONFIG=y. But bin2c will now be
used by kexec too.  So make it compilation dependent on CONFIG_BUILD_BIN2C
and this config option can be selected by CONFIG_KEXEC and CONFIG_IKCONFIG.

Signed-off-by: Vivek Goyal <vgoyal at redhat.com>
---
 arch/x86/Kconfig       | 1 +
 init/Kconfig           | 5 +++++
 scripts/basic/Makefile | 2 +-
 3 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 25d2c6f..213308a 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1555,6 +1555,7 @@ source kernel/Kconfig.hz
 
 config KEXEC
 	bool "kexec system call"
+	select BUILD_BIN2C
 	---help---
 	  kexec is a system call that implements the ability to shutdown your
 	  current kernel, and to start another kernel.  It is like a reboot
diff --git a/init/Kconfig b/init/Kconfig
index 9d3585b..de59f0e 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -773,8 +773,13 @@ endchoice
 
 endmenu # "RCU Subsystem"
 
+config BUILD_BIN2C
+	bool
+	default n
+
 config IKCONFIG
 	tristate "Kernel .config support"
+	select BUILD_BIN2C
 	---help---
 	  This option enables the complete Linux kernel ".config" file
 	  contents to be saved in the kernel. It provides documentation
diff --git a/scripts/basic/Makefile b/scripts/basic/Makefile
index afbc1cd..ec10d93 100644
--- a/scripts/basic/Makefile
+++ b/scripts/basic/Makefile
@@ -9,7 +9,7 @@
 # fixdep: 	 Used to generate dependency information during build process
 
 hostprogs-y	:= fixdep
-hostprogs-$(CONFIG_IKCONFIG)     += bin2c
+hostprogs-$(CONFIG_BUILD_BIN2C)     += bin2c
 always		:= $(hostprogs-y)
 
 # fixdep is needed to compile other host programs
-- 
1.9.0




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