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Howto:Build and run FlightGear on Raspberry Pi 4: Difference between revisions
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Howto:Build and run FlightGear on Raspberry Pi 4 (view source)
Revision as of 17:45, 10 April 2020
, 10 April 2020→Build Order
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It updates fgdata between the building of SimGear and FlightGear so that the translations | It updates fgdata between the building of SimGear and FlightGear so that the translations | ||
tool can be handled properly..." | tool can be handled properly..." | ||
===Patching=== | |||
There could come a time when the source needs to be patched before compiling. In this case the <code>patch</code> command can be used along with it's argument <code>-p</code>. For example; the OpenSceneGraph-3.4.0 requires the '0007-Explicit-signed-char-type-for-portability-base64.patch' patch, in order for it to compile for the ARM architecture. | |||
The argument ,<code>-p</code> adjusts the path of the patch. Below is an example of a snippet from a patch. You will need to navigate the terminal into the root folder of OpenSceneGraph-3.4.0 source. Reference the line ,<code>--- openscenegraph-3.4.orig/src/osgDB/ConvertBase64.cpp</code>. The folder <code>openscenegraph-3.4.orig/</code> can not be used, in our example. In this case, one of the path folders need to be ignored, hence <code>-p1</code>. If two path folders needed to be ignored; <code>-p2</code>. | |||
<syntaxhighlight>Index: openscenegraph-3.4/src/osgDB/ConvertBase64.cpp | |||
=================================================================== | |||
--- openscenegraph-3.4.orig/src/osgDB/ConvertBase64.cpp | |||
+++ openscenegraph-3.4/src/osgDB/ConvertBase64.cpp | |||
@@ -28,7 +28,7 @@ namespace osgDB | |||
int base64_decode_value(char value_in) | |||
{ | |||
- static const char decoding[] = {62,-1,-1,-1,63,52,53,54,55,56,57,58,59,60,61,-1,-1,-1,-2,-1,-1,-1,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,-1,-1,-1,-1,-1,-1,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51}; | |||
+ static const signed char decoding[] = {62,-1,-1,-1,63,52,53,54,55,56,57,58,59,60,61,-1,-1,-1,-2,-1,-1,-1,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,-1,-1,-1,-1,-1,-1,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51}; | |||
static const char decoding_size = sizeof(decoding); | |||
value_in -= 43; | |||
if (value_in < 0 || value_in > decoding_size) return -1;</syntaxhighlight> | |||
===PLIB=== | ===PLIB=== | ||