From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Petazzoni Date: Sat, 20 Oct 2018 15:25:35 +0200 Subject: [Buildroot] [PATCH] qt5: use ccache for building host code Message-ID: <20181020132535.24508-1-thomas.petazzoni@bootlin.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net qt5 currently doesn't use HOSTCC/HOSTCXX, so it doesn't use ccache when building all its host code (especially qmake). This means that even with ccache enabled and a hot cache, it still takes a long time to build qt5base. Before this patch, building qt5base takes: - 446 seconds with a cold ccache - 185 seconds with a hot ccache This is because the ccache is not used for host code. After this patch, building qt5base takes: - 450 seconds with a cold ccache - 15 seconds with a hot ccache Signed-off-by: Thomas Petazzoni --- package/qt5/qt5base/qt5base.mk | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/package/qt5/qt5base/qt5base.mk b/package/qt5/qt5base/qt5base.mk index ab2b883fc4..d9f7af7196 100644 --- a/package/qt5/qt5base/qt5base.mk +++ b/package/qt5/qt5base/qt5base.mk @@ -264,6 +264,13 @@ define QT5BASE_CONFIGURE_ARCH_CONFIG endef endif +# This allows to use ccache when available +define QT5BASE_CONFIGURE_HOSTCC + $(SED) 's,^QMAKE_COMPILER\s*=.*,QMAKE_COMPILER=$(HOSTCC),' $(@D)/mkspecs/common/g++-base.conf + $(SED) 's,^QMAKE_CC\s*=.*,QMAKE_CC=$(HOSTCC),' $(@D)/mkspecs/common/g++-base.conf + $(SED) 's,^QMAKE_CXX\s*=.*,QMAKE_CXX=$(HOSTCXX),' $(@D)/mkspecs/common/g++-base.conf +endef + define QT5BASE_CONFIGURE_CMDS mkdir -p $(@D)/mkspecs/devices/linux-buildroot-g++/ sed 's/@EGLFS_DEVICE@/$(QT5BASE_EGLFS_DEVICE)/g' \ @@ -274,6 +281,7 @@ define QT5BASE_CONFIGURE_CMDS $(QT5BASE_CONFIGURE_CONFIG_FILE) touch $(QT5BASE_ARCH_CONFIG_FILE) $(QT5BASE_CONFIGURE_ARCH_CONFIG) + $(QT5BASE_CONFIGURE_HOSTCC) (cd $(@D); \ $(TARGET_MAKE_ENV) \ PKG_CONFIG="$(PKG_CONFIG_HOST_BINARY)" \ -- 2.14.4