[neon/qt/qt5webkit/Neon/testing] debian: bring back resicv branch

[Harald Sitter]

Git commit 72bb0e1012732348d4d8afa9af90be3444c9c93a by Harald Sitter.
Committed on 18/05/2021 at 12:33.
Pushed by sitter into branch 'Neon/testing'.

bring back resicv branch

this was removed in e62ebb91f7538d2c169290bf343fd37837b0e9fc but never undone after.
notably the riscv bit doesn't even make sense as neon doesn't build on that arch
so it being there or not makes no functional difference. when it is there it doesn't
show up in the diff to debian though - that is a plus in my book

M  +5    -0    debian/rules

https://invent.kde.org/neon/qt/qt5webkit/commit/72bb0e1012732348d4d8afa9af90be3444c9c93a

diff --git a/debian/rules b/debian/rules
index df41039..5e8e46d 100755
--- a/debian/rules
+++ b/debian/rules
@@ -47,6 +47,11 @@ endif
 
 EXTRA_CMAKE_ARGUMENTS += -DCMAKE_BUILD_TYPE=Release
 
+# webkit2gtk does a similar thing, see their prefer-pthread.patch
+ifeq ($(DEB_HOST_ARCH),riscv64)
+    EXTRA_CMAKE_ARGUMENTS += -DTHREADS_PREFER_PTHREAD_FLAG=ON
+endif
+
 %:
 	dh $@ --buildsystem=cmake+ninja --with pkgkde_symbolshelper