Fix for #7289, add CMake option to enable building with Qt jom (nmake…

…) on Windows

- Can now compile using NMake with jom directly from QtCreator using MSVC compiler (2008) and OSGeo4W devel libs
- Make app capable of running from build directory
- Caveat: may be better way to do it; could have better warning control

CMakeLists.txt

@@ -125,6 +125,11 @@ SET (ENABLE_TESTS TRUE CACHE BOOL "Build unit tests?")
 # if set to other directory than expected
 MARK_AS_ADVANCED(LIBRARY_OUTPUT_PATH)
 
+IF (MSVC AND CMAKE_GENERATOR MATCHES "NMake")
+  # following variable is also used in qgsconfig.h
+  SET (USING_NMAKE TRUE)
+ENDIF (MSVC AND CMAKE_GENERATOR MATCHES "NMake")
+
 #############################################################
 # check if lexer and parser are not missing
 # http://www.mail-archive.com/cmake@cmake.org/msg02861.html
@@ -295,7 +300,9 @@ FIND_PROGRAM(QT_LRELEASE_EXECUTABLE
 IF (PEDANTIC)
   MESSAGE (STATUS "Pedantic compiler settings enabled")
   IF(MSVC)
-    ADD_DEFINITIONS( /W4 )
+    IF (NOT USING_NMAKE)
+      ADD_DEFINITIONS( /W4 )
+    ENDIF (NOT USING_NMAKE)
 
     # disable warnings
     ADD_DEFINITIONS( /wd4100 )  # unused formal parameters
@@ -305,6 +312,9 @@ IF (PEDANTIC)
     ADD_DEFINITIONS( /wd4512 )  # assignment operator could not be generated (sqlite3_index_info)
     ADD_DEFINITIONS( /wd4610 )  # user defined constructor required (sqlite3_index_info)
     ADD_DEFINITIONS( /wd4706 )  # assignment within conditional expression (pal)
+    IF (USING_NMAKE)
+      ADD_DEFINITIONS( /wd4999 )  # unknown warnings
+    ENDIF (USING_NMAKE)
   ELSE (MSVC)
     # add warnings via flags (not as definitions as on Mac -Wall can not be overridden per language )
     SET(_warnings "-Wall -Wextra -Wno-long-long -Wformat-security -Wno-strict-aliasing")
@@ -372,8 +382,10 @@ IF (WIN32)
     ADD_DEFINITIONS(-D_CRT_NONSTDC_NO_WARNINGS)
 
     IF (CMAKE_BUILD_TYPE MATCHES Debug OR CMAKE_BUILD_TYPE MATCHES RelWithDebInfo)
-      MESSAGE (STATUS "Generating browse files")
-      ADD_DEFINITIONS( /FR )
+      IF (NOT USING_NMAKE)
+        MESSAGE (STATUS "Generating browse files")
+        ADD_DEFINITIONS( /FR )
+      ENDIF (NOT USING_NMAKE)
     ENDIF (CMAKE_BUILD_TYPE MATCHES Debug OR CMAKE_BUILD_TYPE MATCHES RelWithDebInfo)
 
     IF (INSTALL_DEPS)

cmake_templates/qgsconfig.h.in

@@ -32,6 +32,8 @@
 //used by Mac to find system Qt plugins when bundle is run from build directory
 #define QTPLUGINSDIR "${QT_PLUGINS_DIR}"
 
+#cmakedefine USING_NMAKE
+
 #cmakedefine HAVE_POSTGRESQL
 
 #cmakedefine HAVE_SPATIALITE

src/core/qgsapplication.cpp

@@ -118,7 +118,7 @@ void QgsApplication::init( QString customConfigPath )
   {
     // we run from source directory - not installed to destination (specified prefix)
     ABISYM( mPrefixPath ) = QString(); // set invalid path
-#ifdef _MSC_VER
+#if defined(_MSC_VER) && ! defined(USING_NMAKE)
     setPluginPath( ABISYM( mBuildOutputPath ) + "/" + QString( QGIS_PLUGIN_SUBDIR ) + "/" + ABISYM( mCfgIntDir ) );
 #else
     setPluginPath( ABISYM( mBuildOutputPath ) + "/" + QString( QGIS_PLUGIN_SUBDIR ) );

src/crssync/CMakeLists.txt

@@ -12,17 +12,17 @@ TARGET_LINK_LIBRARIES(crssync
   ${GDAL_LIBRARY}
 )
 
-IF(MSVC)
+IF(MSVC AND NOT USING_NMAKE)
 	ADD_CUSTOM_TARGET(synccrsdb
 		COMMAND ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/${CMAKE_CFG_INTDIR}/crssync.exe
 		DEPENDS crssync
 	)
-ELSE(MSVC)
+ELSE(MSVC AND NOT USING_NMAKE)
 	ADD_CUSTOM_TARGET(synccrsdb
 		COMMAND ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/crssync
 		DEPENDS crssync
 	)
-ENDIF(MSVC)
+ENDIF(MSVC AND NOT USING_NMAKE)
 
 INSTALL(CODE "MESSAGE(\"Installing crssync ...\")")
 INSTALL(TARGETS crssync RUNTIME DESTINATION ${QGIS_LIBEXEC_DIR})

src/helpviewer/main.cpp

@@ -41,14 +41,18 @@ int main( int argc, char ** argv )
   {
     context = argv[1];
   }
+
+  if ( !QgsApplication::isRunningFromBuildDir() )
+  {
 #if defined(Q_WS_MACX)
-  // If we're on Mac, we have the resource library way above us...
-  a.setPkgDataPath( QgsApplication::prefixPath() + "/../../../../" + QString( QGIS_DATA_SUBDIR ) );
+    // If we're on Mac, we have the resource library way above us...
+    a.setPkgDataPath( QgsApplication::prefixPath() + "/../../../../" + QString( QGIS_DATA_SUBDIR ) );
 #elif defined(Q_WS_WIN)
-  a.setPkgDataPath( QgsApplication::prefixPath() + "/" QGIS_DATA_SUBDIR );
+    a.setPkgDataPath( QgsApplication::prefixPath() + "/" QGIS_DATA_SUBDIR );
 #else
-  a.setPkgDataPath( QgsApplication::prefixPath() + "/../" QGIS_DATA_SUBDIR );
+    a.setPkgDataPath( QgsApplication::prefixPath() + "/../" QGIS_DATA_SUBDIR );
 #endif
+  }
 
   QString i18nPath = QgsApplication::i18nPath();
   if ( myTranslationCode.isEmpty() )