elfutils: towards uClibc support: gettext

elfutils is annoying: it needs gettext even if locale support is
disabled...

Heavily based from work done by Stefan Fröberg, but with many further
modifications by Thomas Petazzoni.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

package/elfutils/Config.in

@@ -12,6 +12,7 @@ config BR2_PACKAGE_ELFUTILS
 	       BR2_TOOLCHAIN_BUILDROOT   || \
 	       BR2_TOOLCHAIN_CTNG_uClibc || \
 	       BR2_TOOLCHAIN_EXTERNAL_UCLIBC
+	select BR2_PACKAGE_GETTEXT if BR2_NEEDS_GETTEXT
 	depends on BR2_LARGEFILE
 	help
 	  Libraries/utilities to handle ELF objects (drop in

package/elfutils/elfutils.mk

@@ -25,6 +25,17 @@ ELFUTILS_CONF_ENV += \
         CPPFLAGS="$(filter-out -D_FILE_OFFSET_BITS=64,$(TARGET_CPPFLAGS))"
 endif
 
+ELFUTILS_LDFLAGS = $(TARGET_LDFLAGS)
+
+# Unconditionnally requires gettext.
+ifeq ($(BR2_NEEDS_GETTEXT),y)
+ELFUTILS_DEPENDENCIES += gettext
+ELFUTILS_LDFLAGS += -lintl
+endif
+
+ELFUTILS_CONF_ENV += \
+	LDFLAGS="$(ELFUTILS_LDFLAGS)"
+
 ifeq ($(BR2_TOOLCHAIN_BUILDROOT)$(BR2_TOOLCHAIN_EXTERNAL_UCLIBC)$(BR2_TOOLCHAIN_CTNG_uClibc),y)
  ELFUTILS_DEPENDENCIES += argp-standalone
 endif