[Buildroot] dosfstools build failure

[Will Moore]

Working in buildroot 2013.02, I get the following build failure with dosfstools
selected:

make[1]: Entering directory
`/home/apmdev/buildroot-2013.02/output/build/dosfstools-3.0.12'
/home/apmdev/buildroot-2013.02/output/host/usr/bin/i486-linux-gcc
-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -pipe -Os
-c -o charconv.o src/charconv.c
/home/apmdev/buildroot-2013.02/output/host/usr/bin/i486-linux-gcc
-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -pipe -Os
-c -o dosfslabel.o src/dosfslabel.c
src/charconv.c:2:19: fatal error: iconv.h: No such file or directory
compilation terminated.
/home/apmdev/buildroot-2013.02/output/host/usr/bin/i486-linux-gcc
-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -pipe -Os
-c -o mkdosfs.o src/mkdosfs.c

I built a buildroot internal toolchain out of tree with the following
configuration extracted by:

make savedefconfig O=/home/apmdev/toolchain/buildroot-2013.02

BR2_x86_i486=y
BR2_STRIP_none=y
BR2_PACKAGE_GDB_SERVER=y
BR2_PACKAGE_GDB_HOST=y
BR2_TOOLCHAIN_BUILDROOT_LARGEFILE=y
BR2_TOOLCHAIN_BUILDROOT_WCHAR=y

And built dosfstools with the above toolchain included as an external toolchain
with the following configuration extracted by:

make savedefconfig

BR2_x86_i486=y
BR2_STRIP_none=y
BR2_TOOLCHAIN_EXTERNAL=y
BR2_TOOLCHAIN_EXTERNAL_CUSTOM=y
BR2_TOOLCHAIN_EXTERNAL_PATH="/home/apmdev/toolchain/buildroot-2013.02/host/usr"
BR2_TOOLCHAIN_EXTERNAL_LARGEFILE=y
BR2_TOOLCHAIN_EXTERNAL_WCHAR=y
# BR2_TARGET_GENERIC_REMOUNT_ROOTFS_RW is not set
BR2_PACKAGE_DOSFSTOOLS=y
BR2_PACKAGE_DOSFSTOOLS_MKDOSFS=y

I can see that the dosfstools.mk has:

ifneq ($(BR2_ENABLE_LOCALE),y)
DOSFSTOOLS_DEPENDENCIES += libiconv
DOSFSTOOLS_LDFLAGS += -liconv
endif

I am sure I could fiddle about and fix my build but also quite sure that I could
break it for somebody else in my ignorance ... so suggestions as to how to fix
this correctly would be appreciated.

TIA,



Will