Unify IfcParse's dllimport/export macros with IfcGeom.

src/ifcparse/ifc_parse_api.h

@@ -0,0 +1,37 @@
+/********************************************************************************
+*                                                                              *
+* This file is part of IfcOpenShell.                                           *
+*                                                                              *
+* IfcOpenShell is free software: you can redistribute it and/or modify         *
+* it under the terms of the Lesser GNU General Public License as published by  *
+* the Free Software Foundation, either version 3.0 of the License, or          *
+* (at your option) any later version.                                          *
+*                                                                              *
+* IfcOpenShell is distributed in the hope that it will be useful,              *
+* but WITHOUT ANY WARRANTY; without even the implied warranty of               *
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the                 *
+* Lesser GNU General Public License for more details.                          *
+*                                                                              *
+* You should have received a copy of the Lesser GNU General Public License     *
+* along with this program. If not, see <http://www.gnu.org/licenses/>.         *
+*                                                                              *
+********************************************************************************/
+
+#ifndef IFC_PARSE_API_H
+#define IFC_PARSE_API_H
+
+#ifdef BUILD_SHARED_LIBS
+  #ifdef _WIN32
+    #ifdef IFC_PARSE_EXPORTS
+      #define IFC_PARSE_API __declspec(dllexport)
+    #else
+      #define IFC_PARSE_API __declspec(dllimport)
+    #endif
+  #else // simply assume *nix + GCC-like compiler
+    #define IFC_PARSE_API __attribute__((visibility("default")))
+  #endif
+#else
+  #define IFC_PARSE_API
+#endif
+
+#endif