Make qt56-env.sh be sourced automatically

.travis.yml

@@ -11,7 +11,6 @@ before_install:
         - make arm_sdk_install
 
 script:
-        - . /opt/qt56/bin/qt56-env.sh
         - make config_new CCACHE=ccache GCS_EXTRA_CONF='osg osgearth'
         - make all_flight
         - make opfw_resource

make/tools.mk

@@ -552,9 +552,15 @@ ifeq ($(shell [ -d "$(QT_SDK_DIR)" ] && $(ECHO) "exists"), exists)
         export LD_LIBRARY_PATH := $(QT_SDK_DIR)/lib:$(LD_LIBRARY_PATH)
     endif
 else
-    # not installed, hope it's in the path...
-    # $(info $(EMPTY) WARNING     $(call toprel, $(QT_SDK_DIR)) not found (make qt_sdk_install), using system PATH)
-    QMAKE ?= qmake
+    OPT_QT := qt56
+    OPT_QT_ENV_SH := /opt/$(OPT_QT)/bin/$(OPT_QT)-env.sh
+    ifneq ($(wildcard $(OPT_QT_ENV_SH)),)
+        SHELL := /bin/bash
+        QMAKE := . $(OPT_QT_ENV_SH) && qmake
+    else
+        # not installed, hope it's in the path...
+        QMAKE := qmake
+    endif
 endif
 
 .PHONY: qt_sdk_version

package/linux/deb.mk

@@ -24,7 +24,6 @@ SED_SCRIPT           := $(SED_SCRIPT)' \
 			'
 
 # Ubuntu 14.04 (Trusty Tahr) use qt in /opt PPA
-OPT_QT               := qt56
 TRUSTY_DEPS_SED      := s/qml-module-.*/$(OPT_QT)quickcontrols/g; \
                         s/qt5-default.*/$(OPT_QT)-meta-minimal, $(OPT_QT)svg, $(OPT_QT)script, $(OPT_QT)serialport, $(OPT_QT)multimedia, $(OPT_QT)translations, $(OPT_QT)tools/g;
 
@@ -51,8 +50,6 @@ debian: $(DEB_DIR)
 	$(V1) $(SED_SCRIPT) debian/changelog debian/control
 ifeq ($(DEB_DIST), trusty)
 	$(V1) sed -i -e '$(TRUSTY_DEPS_SED)' debian/control
-	$(V1) sed -i -e 's,dh ,source /opt/$(OPT_QT)/bin/$(OPT_QT)-env.sh || true; dh ,' debian/rules
-	$(V1) echo "SHELL := /bin/bash" >> debian/rules
 endif
 
 .PHONY: package_src