package/elfutils: Show a comment explaining that elfutils progs need glibc

The elfutils programs require Glibc to be used as the C library. Show a
comment when this libc isn't used in the toolchain.

Suggested-by: Yann E. MORIN <yann.morin@orange.com>
Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: Julien Olivain <ju.o@free.fr>

package/elfutils/Config.in

@@ -28,4 +28,7 @@ config BR2_PACKAGE_ELFUTILS_PROGS
 	  This option tells elfutils to not only install the libelf
 	  libraries, but also the elfutils programs.
 
+comment "elfutils programs needs a glibc toolchain"
+	depends on !BR2_TOOLCHAIN_USES_GLIBC
+
 endif