Fixes paths, drops hardcoded archs, fixes unknown test function error:
https://forum.qt.io/topic/35403/qmake-gives-unknown-test-function-for

Notice that in the context of this port build64 does not necessarily mean 64-bit arch,
but just uses doubles. CsoundLib64 builds fine on 32-bit.

--- qcs-macx.pro	2020-07-03 05:55:55.000000000 +0800
+++ qcs-macx.pro	2023-12-31 14:53:05.000000000 +0800
@@ -5,18 +5,6 @@
 	message(Building CsoundQt for Macintosh OS X.)
 }
 
-i386:  {
-CONFIG += i386
-QMAKE_CXXFLAGS += -arch i386
-} else:universal {
-QMAKE_CXXFLAGS += -arch i386
-CONFIG += i386
-CONFIG += ppc
-} else {
-CONFIG += x86_64
-QMAKE_CXXFLAGS += -arch x86_64
-}
-
 build32: MAC_LIB = CsoundLib
 build64: MAC_LIB = CsoundLib64
 
@@ -24,25 +12,21 @@
 HOME_DIRECTORY =
 
 # Set default paths
-CSOUND_FRAMEWORK_DIR = /Library/Frameworks/$${MAC_LIB}.framework/Versions/Current
-DEFAULT_CSOUND_API_INCLUDE_DIRS =  $${CSOUND_FRAMEWORK_DIR}/Headers \
-        $${CSOUND_FRAMEWORK_DIR}/Headers \
-        /usr/local/include/csound
+CSOUND_FRAMEWORK_DIR = @PREFIX@/Library/Frameworks/$${MAC_LIB}.framework/Versions/6.0
+DEFAULT_CSOUND_API_INCLUDE_DIRS = $${CSOUND_FRAMEWORK_DIR}/Headers \
+        @PREFIX@/include/csound
 DEFAULT_CSOUND_INTERFACES_INCLUDE_DIRS = $${DEFAULT_CSOUND_API_INCLUDE_DIRS}
-DEFAULT_CSOUND_LIBRARY_DIRS = $${HOME_DIRECTORY}/$${CSOUND_FRAMEWORK_DIR} \
-        $${CSOUND_FRAMEWORK_DIR} \
-        /usr/local/lib
+DEFAULT_CSOUND_LIBRARY_DIRS = $${CSOUND_FRAMEWORK_DIR} \
+        @PREFIX@/lib
 build32:DEFAULT_CSOUND_LIBS = CsoundLib
 build64:DEFAULT_CSOUND_LIBS = CsoundLib64
 
 # For OS X, the PythonQt.1.0.0.dylib and the libPythonQt.1.dylib must be on /usr/local/lib or other lib path
-DEFAULT_PYTHON_INCLUDE_DIR = /usr/local/include \
-        /usr/include
-DEFAULT_PYTHONQT_LIBRARY_DIRS = /usr/local/lib \
-        /usr/lib
+DEFAULT_PYTHON_INCLUDE_DIR = @PREFIX@/include
+DEFAULT_PYTHONQT_LIBRARY_DIRS = @PREFIX@/lib
 
-PYTHONQT_VARIANTS =  "PythonQt3.2" "PythonQt3.1" "PythonQt3.0" "PythonQt" "PythonQt2.0.1"
-for (pyqtdir, PYTHONQT_VARIANTS) {
+PYTHONQT_VARIANTS = "PythonQt3.2" "PythonQt3.1" "PythonQt3.0" "PythonQt" "PythonQt2.0.1"
+for(pyqtdir, PYTHONQT_VARIANTS) {
 	DEFAULT_PYTHONQT_SRC_DIRS += ../../../$$pyqtdir \
 		../$$pyqtdir \
 		$$pyqtdir
@@ -69,8 +53,8 @@
 RESOURCES += "src/quteapp_d_osx.qrc"
 }
 #LIBS += -framework QtCore -framework QtGui -framework QtXml
-LCSOUND = -F$${HOME_DIRECTORY}/Library/Frameworks -F/Library/Frameworks -framework $${MAC_LIB}
-csound6: LCSND = -L/usr/local/lib -lcsnd6.6.0
+LCSOUND = -F@PREFIX@/Library/Frameworks -framework $${MAC_LIB}
+csound6: LCSND = -L@PREFIX@/lib -lcsnd6.6.0
 else: LCSND = -l_csnd
 
 QMAKE_INFO_PLIST = $${PWD}/src/MyInfo.plist

--- qcs.pro	2020-07-03 05:55:55.000000000 +0800
+++ qcs.pro	2023-12-31 18:20:56.000000000 +0800
@@ -34,6 +34,15 @@
 # qmake qcs.pro INSTALL_DIR=~ SHARE_DIR=~/.local/share
 ################################################################################
 
+QMAKE_CC=@CC@
+QMAKE_CXX=@CXX@
+QMAKE_CFLAGS=@CFLAGS@
+QMAKE_CXXFLAGS=@CXXFLAGS@
+QMAKE_LFLAGS=@LFLAGS@
+QMAKE_LINK_C=@CC@
+QMAKE_LINK_C_SHLIB=@CC@
+QMAKE_LINK=@CXX@
+QMAKE_LINK_SHLIB=@CXX@
 
 DEFINES += NOMINMAX
 # DEFINES += USE_WIDGET_MUTEX
@@ -46,7 +55,7 @@
 greaterThan(QT_MAJOR_VERSION, 4){
 CONFIG += c++11
 } else {
-QMAKE_CXXFLAGS += -std=c++0x
+QMAKE_CXXFLAGS += -std=c++11
 }
 
 !csound5 {
@@ -170,11 +179,14 @@
 CONFIG += c++11
 }
 
+CSOUND_API_INCLUDE_DIR = @PREFIX@/Library/Frameworks/$${MAC_LIB}.framework/Versions/6.0/Headers
+CSOUND_INTERFACES_INCLUDE_DIR = @PREFIX@/include/csound
+
 INCLUDEPATH *= $${CSOUND_API_INCLUDE_DIR}
 INCLUDEPATH *= $${CSOUND_INTERFACES_INCLUDE_DIR}
 
 #DESTDIR = $${_PRO_FILE_PWD_}/bin
-DESTDIR = bin
+DESTDIR = @DESTDIR@
 MOC_DIR = build/moc
 UI_DIR = build/ui
 RCC_DIR = build/rc
@@ -194,10 +206,10 @@
 # use 'sudo make install' for system wide installation
 unix:!macx {
     isEmpty(INSTALL_DIR) {
-		INSTALL_DIR=/usr/local  # ~  #for HOME
+		INSTALL_DIR=@PREFIX@  # ~  #for HOME
     }
 	isEmpty(SHARE_DIR) {
-        SHARE_DIR=/usr/share # ~/.local/share for HOME install
+        SHARE_DIR=@PREFIX@/share # ~/.local/share for HOME install
 	}
 
 	target.path = $$INSTALL_DIR/bin

--- config.pri	2020-07-03 05:55:55.000000000 +0800
+++ config.pri	2023-12-31 14:55:46.000000000 +0800
@@ -10,7 +10,7 @@
 OBJECTS_DIR = "$${TMPDIR}/obj"
 
 RTMIDI_VERSIONS = "rtmidi-4.0.0" "rtmidi-3.0.0" "rtmidi-2.1.1" "rtmidi-2.1.0" "rtmidi-2.0.1" "rtmidi-1.0.15"
-for (rtdir, RTMIDI_VERSIONS) {
+for(rtdir, RTMIDI_VERSIONS) {
 	DEFAULT_RTMIDI_DIRNAME=$$rtdir
 	DEFAULT_RTMIDI_DIRS += $${DEFAULT_RTMIDI_DIRNAME} \
 	  ../$${DEFAULT_RTMIDI_DIRNAME} \
@@ -128,19 +128,12 @@
 rtmidi {
 # check if RTMIDI is found in system
 unix:!macx {
-    exists("/usr/include/rtmidi")  {
-		RTMIDI_DIR = "/usr/include/rtmidi"
-		!no_messages:message(RtMidi found in /usr/include/rtmidi)
+    exists("@PREFIX@/include/rtmidi")  {
+		RTMIDI_DIR = "@PREFIX@/include/rtmidi"
+		!no_messages:message(RtMidi found in @PREFIX@/include/rtmidi)
         CONFIG -= rtmidi
         CONFIG += system_rtmidi
     }
-    exists("/usr/local/include/rtmidi")  {
-        RTMIDI_DIR = "/usr/local/include/rtmidi"
-        !no_messages:message(RtMidi found in /usr/local/include/rtmidi)
-        CONFIG -= rtmidi
-        CONFIG += system_rtmidi
-    }
-
 }
 
 isEmpty(RTMIDI_DIR) {