[neon/qt6/qt6-mqtt/Neon/unstable_jammy] debian: make it build

[Carlos De Maine]

Git commit 82a11e0a98f761443405f56b81bd0836d65a1c0f by Carlos De Maine.
Committed on 26/07/2024 at 23:43.
Pushed by carlosdem into branch 'Neon/unstable_jammy'.

make it build

M  +3    -0    debian/control
M  +24   -4    debian/rules

https://invent.kde.org/neon/qt6/qt6-mqtt/-/commit/82a11e0a98f761443405f56b81bd0836d65a1c0f

diff --git a/debian/control b/debian/control
index 9b69640..66cc99b 100644
--- a/debian/control
+++ b/debian/control
@@ -5,6 +5,9 @@ Maintainer: KDE neon <neon at kde.org>
 Build-Depends: cmake,
                debhelper,
                debhelper-compat (= 13),
+               g++-12,
+               gcc-12,
+               mold,
                ninja-build,
                pkg-config,
                pkg-kde-tools,
diff --git a/debian/rules b/debian/rules
index 0d56bff..e2abeb2 100755
--- a/debian/rules
+++ b/debian/rules
@@ -1,17 +1,37 @@
 #!/usr/bin/make -f
-
 include /usr/share/dpkg/architecture.mk
 
 export DEB_BUILD_MAINT_OPTIONS = hardening=+all optimize=+lto
 
+# need gcc 12.1 for mold to be able to process --gdb-index
+export CC=gcc-12
+export CXX=g++-12
+
+# QT_HOST_PATH isn't passed in cross-builds
+ifneq ($(DEB_BUILD_ARCH),$(DEB_HOST_ARCH))
+	extra_cmake_args += -DQT_HOST_PATH=/usr
+endif
+
 %:
 	dh $@ --with pkgkde_symbolshelper --buildsystem=cmake+ninja
 
 override_dh_auto_configure:
 	dh_auto_configure -- \
-		--log-level=STATUS \
-		-DCMAKE_LIBRARY_PATH=$(DEB_HOST_MULTIARCH)
+		-DCMAKE_MESSAGE_LOG_LEVEL=STATUS \
+		-DCMAKE_LIBRARY_PATH=$(DEB_HOST_MULTIARCH) \
+		-DCMAKE_INTERPROCEDURAL_OPTIMIZATION=ON \
+		-DQT_UNITY_BUILD=ON \
+		$(extra_cmake_args)
+
+override_dh_auto_build-indep:
+	dh_auto_build -- docs
+
+override_dh_auto_install-indep:
+	DESTDIR=$(CURDIR)/debian/tmp dh_auto_build -- install_docs
+	# Remove build path from index files.
+	find $(CURDIR)/debian/tmp/usr/share/qt6/doc -type f -name *.index -exec \
+               sed -i 's@$(CURDIR)/@@g' {} \;
 
-execute_after_dh_auto_install:
+execute_after_dh_auto_install-arch:
 	# Reproducible builds: remove build paths from .prl files
 	sed -i -e '/^QMAKE_PRL_BUILD_DIR/d' debian/tmp/usr/lib/$(DEB_HOST_MULTIARCH)/libQt6*.prl