[Buildroot] [PATCH 1/1] package/hidapi: select glibc gconv libs copy

[Dan Walkes]

Hidapi source uses iconv_open UTF-16 conversion [1] which requires
gconv libararies when buiding with glibc in order to successfully
find serial number, manufacturer and product strings [2].

Use select in the config file to autmatically select gconv libararies
for inclusion on the target when building with glibc

Tested with ./utils/test-pkg -c hidapi.cfg -p hidapi and hidapi.cfg file
contents:
BR2_PACKAGE_HIDAPI=y
BR2_PACKAGE_EUDEV=y
BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_EUDEV=y
BR2_USE_MMU=y
BR2_USE_WCHAR=y

Also tested on x86-64 build target with application using hidapi

[1]: https://github.com/signal11/hidapi/blob/a6a622ffb680c55da0de787ff93b80280498330f/libusb/hid.c#L446
[2]: https://www.silabs.com/community/interface/forum.topic.html/cp2114_linux_sta-RtWg

Signed-off-by: Dan Walkes <danwalkes at trellis-logic.com>
Tested-by: Dan Walkes <danwalkes at trellis-logic.com>
---
 package/hidapi/Config.in | 1 +
 1 file changed, 1 insertion(+)

diff --git a/package/hidapi/Config.in b/package/hidapi/Config.in
index f6a31ba..d02ec23 100644
--- a/package/hidapi/Config.in
+++ b/package/hidapi/Config.in
@@ -5,6 +5,7 @@ config BR2_PACKAGE_HIDAPI
 	select BR2_PACKAGE_LIBUSB
 	select BR2_PACKAGE_LIBGUDEV
 	select BR2_PACKAGE_LIBICONV if !BR2_ENABLE_LOCALE
+	select BR2_TOOLCHAIN_GLIBC_GCONV_LIBS_COPY if BR2_TOOLCHAIN_USES_GLIBC # runtime UTF conversion support
 	help
 	  HIDAPI is a multi-platform library which allows an application
 	  to interface with USB and Bluetooth HID-Class devices on
-- 
2.7.4