Bug#949864: qgis: FTBFS with default python3.8

[Gianfranco Costamagna]

Source: qgis
Version: 3.4.15+dfsg-1
Severity: serious
tags: patch

Hello, when built on experimental, the python3-config command needs a new flag to find correctly the python3.8 library (thanks Doko for the suggestion)


so, the following (unfortunately non-retro-compatible) patch, fixes the issue:


--- qgis-3.4.15+dfsg/debian/changelog	2020-01-22 05:57:39.000000000 +0100
+++ qgis-3.4.15+dfsg/debian/changelog	2020-01-25 22:17:14.000000000 +0100
@@ -1,3 +1,10 @@
+qgis (3.4.15+dfsg-1.1) experimental; urgency=medium
+
+  * Manually add --embed to rules file to fix FTBFS due to change in
+    behaviour of python3-config --ldflags (from doko) (Closes: #-1)
+
+ -- Gianfranco Costamagna <locutusofborg at debian.org>  Sat, 25 Jan 2020 22:17:14 +0100
+
 qgis (3.4.15+dfsg-1) unstable; urgency=medium
 
   * Move from experimental to unstable.
diff -Nru qgis-3.4.15+dfsg/debian/rules qgis-3.4.15+dfsg/debian/rules
--- qgis-3.4.15+dfsg/debian/rules	2019-11-11 09:07:24.000000000 +0100
+++ qgis-3.4.15+dfsg/debian/rules	2020-01-25 22:17:14.000000000 +0100
@@ -93,7 +93,7 @@
 	-DWITH_SERVER_PLUGINS=TRUE \
 	-DWITH_QWTPOLAR=FALSE \
 	-DQT_PLUGINS_DIR=$(QT_PLUGINS_DIR) \
-	-DPYTHON_LIBRARY=$(shell python3-config --ldflags | sed -e 's\#-L\(.*\) -L/usr/lib -l\([^ ]*\) .*$$\#\1/lib\2.so\#')
+	-DPYTHON_LIBRARY=$(shell python3-config --ldflags --embed | sed -e 's\#-L\(.*\) -L/usr/lib -l\([^ ]*\) .*$$\#\1/lib\2.so\#')
 
 ifneq ($(SHA),)
 	CMAKE_OPTS += -DSHA=$(SHA)