qt4: add eglibc-gconv-utf-16 to QtCore RRECOMMENDS when using glibc

This fixes the following warnings when running Qt applications:
QIconvCodec::convertFromUnicode: using Latin-1 for conversion, iconv_open failed QIconvCodec::convertToUnicode: using Latin-1 for conversion, iconv_open failed

Qt's QString class stores strings internally using UTF-16 encoding. The UTF-16 iconv module is needed to convert between the system's local 8-bit representation and QString's UTF-16 encoding.

For example, the following functions would be affected:
QString::fromLocal8Bit(...) QString::toLocal8Bit(...)

If the UTF-16 iconv module couldn't be loaded, it would use Latin-1 encoding instead of the system's encoding for conversion.

[YOCTO #349]

Signed-off-by Jonathan Liu <[email protected]>

---
 meta/recipes-qt/qt4/qt4.inc | 1 +
 1 file changed, 1 insertion(+)

meta/recipes-qt/qt4/qt4.inc +0 -0

index 828e30a..ebe0ea5 100644
@@ -134,6 +134,7 @@ FILES_${QT_BASE_NAME}-demos-doc =
 "${docdir}/${QT_DIR_NAME}/qch/qt.qch" RRECOMMENDS_${PN} = "${LIB_PACKAGES}

${OTHER_PACKAGES}"
RRECOMMENDS_${PN}-dev = "${DEV_PACKAGES}" RRECOMMENDS_${PN}-dbg = "${DBG_PACKAGES}"
+RRECOMMENDS_${QT_BASE_LIB}core4_append_libc-glibc = " eglibc-gconv-utf-16"

 RRECOMMENDS_${QT_BASE_NAME}-demos += " \
             ${QT_BASE_NAME}-examples \
             ${QT_BASE_NAME}-plugin-sqldriver-sqlite \