clean up qt project, always refer to makefile-produced qbolt.a files

Makefile

@@ -33,11 +33,6 @@ build/win32/qbolt.a: *.go
 	CC=/usr/lib/mxe/usr/bin/i686-w64-mingw32.static-gcc CGO_ENABLED=1 GOARCH=386 GOOS=windows \
 		go build ${GOFLAGS} -buildmode=c-archive -o build/win32/qbolt.a
 
-# Copy shared library into place for builds straight out of the IDE
-	
-qbolt/qbolt.a: build/linux/qbolt.a
-	cp build/linux/qbolt.a qbolt/qbolt.a
-	
 # Linux binaries
 	
 build/linux/qbolt: build/linux/qbolt.a qbolt/*

qbolt/qbolt.pro

@@ -11,28 +11,21 @@ greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
 TARGET = qbolt
 TEMPLATE = app
 
-# The following define makes your compiler emit warnings if you use
-# any feature of Qt which as been marked as deprecated (the exact warnings
-# depend on your compiler). Please consult the documentation of the
-# deprecated API in order to know how to port your code away from it.
+# Enforce Qt deprecations
 DEFINES += QT_DEPRECATED_WARNINGS
-
-QMAKE_LIBS += qbolt.a
-
-QMAKE_CXXFLAGS += -fpermissive # needed for some CGO function pointer interop where the header only specifices void*
-
-# You can also make your code fail to compile if you use deprecated APIs.
-# In order to do so, uncomment the following line.
-# You can also select to disable deprecated APIs only up to a certain version of Qt.
-#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
+DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000
 
 win32: {
     # for some reason, qbolt_cgo.h never realises that Q_OS_WIN is defined for win32 builds... weird
     DEFINES += CGO_WINDOWS
-    #QMAKE_LFLAGS += -lntdll
+    QMAKE_LIBS += $$_PRO_FILE_PWD_/../build/win32/qbolt.a
     QMAKE_LIBS += -lntdll
 }
 
+linux: {
+    QMAKE_LIBS += $$_PRO_FILE_PWD_/../build/linux/qbolt.a
+}
+
 SOURCES += main.cpp\
         mainwindow.cpp \
     interop.cpp \