config: fix style issues when source-ing files

Always enclose the sourced file between double-quotes (purely for
consistency; enclosing or not are both allowed by the kconfig language).

config/binutils.in

@@ -38,8 +38,8 @@ endif # ! ARCH_USE_MMU
 
 endchoice
 
-source config/binutils/binutils.in
-source config/binutils/elf2flt.in
-source config/binutils/sstrip.in
+source "config/binutils/binutils.in"
+source "config/binutils/elf2flt.in"
+source "config/binutils/sstrip.in"
 
 endmenu

config/cc.in

@@ -8,7 +8,7 @@ config CC
 config CC_VERSION
     string
 
-source config.gen/cc.in
+source "config.gen/cc.in"
 
 config CC_SUPPORT_CXX
     bool

config/companion_libs.in

@@ -139,32 +139,32 @@ config LIBELF_TARGET
 if GMP || GMP_TARGET
 comment "GMP version needed to build for target"
     depends on !GMP
-source config/companion_libs/gmp.in
+source "config/companion_libs/gmp.in"
 endif
 if MPFR || MPFR_TARGET
 comment "MPFR version needed to build for target"
     depends on !MPFR
-source config/companion_libs/mpfr.in
+source "config/companion_libs/mpfr.in"
 endif
 if PPL || PPL_TARGET
 comment "PPL version needed to build for target"
     depends on !PPL
-source config/companion_libs/ppl.in
+source "config/companion_libs/ppl.in"
 endif
 if CLOOG || CLOOG_TARGET
 comment "CLOOG version needed to build for target"
     depends on !CLOOG
-source config/companion_libs/cloog.in
+source "config/companion_libs/cloog.in"
 endif
 if MPC || MPC_TARGET
 comment "MPC version needed to build for target"
     depends on !MPC
-source config/companion_libs/mpc.in
+source "config/companion_libs/mpc.in"
 endif
 if LIBELF || LIBELF_TARGET
 comment "libelf version needed to build for target"
     depends on !LIBELF
-source config/companion_libs/libelf.in
+source "config/companion_libs/libelf.in"
 endif
 
 config FOO

config/config.in

@@ -1,13 +1,13 @@
-source config/backend.in
+source "config/backend.in"
 if ! BACKEND_ERROR
-source config/global.in
-source config/target.in
-source config/toolchain.in
-source config/kernel.in
-source config/binutils.in
-source config/cc.in
-source config/libc.in
-source config/debug.in
-source config/companion_libs.in
-source config/companion_tools.in
+source "config/global.in"
+source "config/target.in"
+source "config/toolchain.in"
+source "config/kernel.in"
+source "config/binutils.in"
+source "config/cc.in"
+source "config/libc.in"
+source "config/debug.in"
+source "config/companion_libs.in"
+source "config/companion_tools.in"
 endif # ! BACKEND_ERROR

config/config.mk

@@ -103,12 +103,12 @@ define build_gen_choice_in
 	    echo "if $(3)_$${_entry}";                                          \
 	    echo "config $(3)";                                                 \
 	    echo "    default \"$${entry}\" if $(3)_$${_entry}";                \
-	    echo "source $${file}";                                             \
+	    echo "source \"$${file}\"";                                         \
 	    echo "endif";                                                       \
 	  done;                                                                 \
 	  echo "";                                                              \
 	  for file in $(wildcard $(4)/*.in-common); do                          \
-	    echo "source $${file}";                                             \
+	    echo "source \"$${file}\"";                                         \
 	  done;                                                                 \
 	 ) >$(1)
 endef
@@ -138,7 +138,7 @@ define build_gen_menu_in
 	      echo "    $${dep_val#\# }";                                       \
 	    fi;                                                                 \
 	    echo "if $(3)_$${_entry}";                                          \
-	    echo "source $${file}";                                             \
+	    echo "source \"$${file}\"";                                         \
 	    echo "endif";                                                       \
 	    echo "";                                                            \
 	  done;                                                                 \

config/debug.in

@@ -1,3 +1,3 @@
 menu "Debug facilities"
-source config.gen/debug.in
+source "config.gen/debug.in"
 endmenu

config/kernel.in

@@ -21,7 +21,7 @@ config KERNEL
 config KERNEL_VERSION
     string
 
-source config.gen/kernel.in
+source "config.gen/kernel.in"
 
 comment "Common kernel options"
 

config/libc.in

@@ -19,7 +19,7 @@ config LIBC_VERSION
       So if you want to be able to re-build your toolchain later, you will
       have to save your C library tarball by yourself.
 
-source config.gen/libc.in
+source "config.gen/libc.in"
 
 config LIBC_SUPPORT_NPTL
     bool

config/target.in

@@ -39,7 +39,7 @@ config TARGET_LDFLAGS
 
 comment "General target options"
 
-source config.gen/arch.in
+source "config.gen/arch.in"
 
 #--------------------------------------
 config ARCH_SUPPORTS_BOTH_MMU