fix visibility warnings

Author: jef-n

src/core/qgis.cpp

@@ -47,12 +47,12 @@ const int QGis::QGIS_VERSION_INT = VERSION_INT;
 const char* QGis::QGIS_RELEASE_NAME = RELEASE_NAME;
 
 #if GDAL_VERSION_NUM >= 1800
-const CORE_EXPORT QString GEOPROJ4 = "+proj=longlat +datum=WGS84 +no_defs";
+const QString GEOPROJ4 = "+proj=longlat +datum=WGS84 +no_defs";
 #else
-const CORE_EXPORT QString GEOPROJ4 = "+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs";
+const QString GEOPROJ4 = "+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs";
 #endif
 
-const CORE_EXPORT QString GEOWKT =
+const QString GEOWKT =
   "GEOGCS[\"WGS 84\", "
   "  DATUM[\"WGS_1984\", "
   "    SPHEROID[\"WGS 84\",6378137,298.257223563, "
@@ -65,13 +65,13 @@ const CORE_EXPORT QString GEOWKT =
   "  AXIS[\"Long\",EAST], "
   "  AUTHORITY[\"EPSG\",4326]]";
 
-const CORE_EXPORT QString PROJECT_SCALES =
+const QString PROJECT_SCALES =
   "1:1000000,1:500000,1:250000,1:100000,1:50000,1:25000,"
   "1:10000,1:5000,1:2500,1:1000,1:500";
 
-const CORE_EXPORT QString GEO_EPSG_CRS_AUTHID = "EPSG:4326";
+const QString GEO_EPSG_CRS_AUTHID = "EPSG:4326";
 
-const CORE_EXPORT QString GEO_NONE = "NONE";
+const QString GEO_NONE = "NONE";
 
 const double QGis::DEFAULT_IDENTIFY_RADIUS = 0.5;
 const double QGis::DEFAULT_SEARCH_RADIUS_MM = 2.;