libc/glibc: use the multi-inclusion capability of the new kconfig

Now that kconfig can include a file multiple times, link the glibc/eglibc
common stuff to two .in.2 files.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>

config/config.mk

@@ -118,10 +118,6 @@ define build_gen_choice_in
 	    echo "source \"$${file}\"";                                         \
 	    echo "endif";                                                       \
 	  done;                                                                 \
-	  echo "";                                                              \
-	  for file in $(wildcard $(4)/*.in-common); do                          \
-	    echo "source \"$${file}\"";                                         \
-	  done;                                                                 \
 	 ) >$(1)
 	$(SILENT)(echo "# $(2) second part options";                            \
 	  echo "# Generated file, do not edit!!!";                              \

config/libc/eglibc.in.2

@@ -0,0 +1 @@
+glibc-eglibc.in-common

config/libc/glibc-eglibc.in-common

@@ -1,8 +1,6 @@
 # This file contains the common configuration options
 # that apply to both glibc and eglibc.
 
-if LIBC_glibc || LIBC_eglibc
-
 # Some architectures require the ports addon. List them one by one here:
 # This list must be carefully in sync with the architectures names
 # we can find in config/arch/*
@@ -18,8 +16,6 @@ config LIBC_glibc_familly
     default y
     select BINUTILS_FORCE_LD_BFD
 
-comment "glibc/eglibc common options"
-
 config LIBC_GLIBC_EXTRA_CONFIG
     string
     prompt "extra config"
@@ -152,7 +148,7 @@ endif
 
 if KERNEL_linux
 
-choice
+choice LIBC_GLIBC_SUPPORTED_KERNEL
     bool
     prompt "Minimum supported kernel version"
     default LIBC_GLIBC_KERNEL_VERSION_AS_HEADERS
@@ -247,5 +243,3 @@ config LIBC_GLIBC_MIN_KERNEL
     default LIBC_GLIBC_MIN_KERNEL_VERSION if LIBC_GLIBC_KERNEL_VERSION_CHOSEN
 
 endif # KERNEL_linux
-
-endif # LIBC_glibc || LIBC_eglibc

config/libc/glibc.in.2

@@ -0,0 +1 @@
+glibc-eglibc.in-common