[Buildroot] [PATCH] qt: QT_COORD_TYPE_DOUBLE should only be set on soft float

[Richard Genoud]

If QT_COORD_TYPE_DOUBLE is forced and hard float is used, Qt compilation
breaks because it can't find hard coded operations on double.

Moreover, QT_COORD_TYPE is float only if QT_NO_FPU is set.
(cf src/corelib/global/qglobal.h)

So, we can safely make the QT_COORD_TYPE_DOUBLE option depend on
BR2_SOFT_FLOAT.

Reported-by: Peter Korsgaard <peter at korsgaard.com>
Signed-off-by: Richard Genoud <richard.genoud at gmail.com>
---
 package/qt/Config.in | 1 +
 1 file changed, 1 insertion(+)

based on master 2a15ce89ac5a
Compiled for:
cortexA8 in hard float/soft float with and without QT_COORD_TYPE_DOUBLE
x86_64
arm926t with and without QT_COORD_TYPE_DOUBLE

diff --git a/package/qt/Config.in b/package/qt/Config.in
index 83fdeec812bb..9568b7010cff 100644
--- a/package/qt/Config.in
+++ b/package/qt/Config.in
@@ -121,6 +121,7 @@ config BR2_PACKAGE_QT_CONFIG_FILE
 	  file, which Buildroot will give to Qt at compile time.
 
 config BR2_PACKAGE_QT_QT_COORD_TYPE_DOUBLE
+	depends on BR2_SOFT_FLOAT
 	bool "QT_COORD_TYPE to double"
 	help
 	  Set QT_COORD_TYPE to double. On ARM-based platforms, qreal
-- 
2.3.4