--- libSBML-5.18.0-Source/CMakeLists.txt.orig	2019-11-11 22:11:09.453656400 +0300
+++ libSBML-5.18.0-Source/CMakeLists.txt	2019-11-11 22:15:50.987759200 +0300
@@ -950,6 +950,7 @@
     set(FILE_SEP ";")
     if(MINGW)
         set(LIBSBML_LIBRARY sbml)
+        set(MISC_PREFIX "${CMAKE_INSTALL_DATADIR}/libsbml/")
     else()
         set(LIBSBML_LIBRARY libsbml)
     endif()
@@ -1317,8 +1318,8 @@
 file(APPEND "${CMAKE_CURRENT_BINARY_DIR}/libsbml.pc" "Version: ${PACKAGE_VERSION}\n")
 file(APPEND "${CMAKE_CURRENT_BINARY_DIR}/libsbml.pc" "\n")
 file(APPEND "${CMAKE_CURRENT_BINARY_DIR}/libsbml.pc" "prefix=${CMAKE_INSTALL_PREFIX}\n")
-file(APPEND "${CMAKE_CURRENT_BINARY_DIR}/libsbml.pc" "libdir=${CMAKE_INSTALL_FULL_LIBDIR}\n")
-file(APPEND "${CMAKE_CURRENT_BINARY_DIR}/libsbml.pc" "includedir=${CMAKE_INSTALL_FULL_INCLUDEDIR}\n")
+file(APPEND "${CMAKE_CURRENT_BINARY_DIR}/libsbml.pc" "libdir=\${prefix}/${CMAKE_INSTALL_LIBDIR}\n")
+file(APPEND "${CMAKE_CURRENT_BINARY_DIR}/libsbml.pc" "includedir=\${prefix}/${CMAKE_INSTALL_INCLUDEDIR}\n")
 file(APPEND "${CMAKE_CURRENT_BINARY_DIR}/libsbml.pc" "\n")
 file(APPEND "${CMAKE_CURRENT_BINARY_DIR}/libsbml.pc" "Libs: -L\${libdir} -lsbml\n")
 file(APPEND "${CMAKE_CURRENT_BINARY_DIR}/libsbml.pc" "Libs.private:        ${PRIVATE_LIBS}\n")
@@ -1331,7 +1332,7 @@
 file(APPEND "${CMAKE_CURRENT_BINARY_DIR}/libsbml.pc" "Requires.private: libxml-2.0 >= 2.6.22\n")
 endif()
 
-if (UNIX)
+if (UNIX OR MINGW)
 install(FILES "${CMAKE_CURRENT_BINARY_DIR}/libsbml.pc"
         DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
 endif()
--- libSBML-5.18.0-Source/src/bindings/python/CMakeLists.txt.orig	2019-11-11 22:18:45.782756900 +0300
+++ libSBML-5.18.0-Source/src/bindings/python/CMakeLists.txt	2019-11-11 22:18:53.304187100 +0300
@@ -324,7 +324,7 @@
 # Determine the python installation directory
 #
 set(PYTHON_PACKAGE_INSTALL_DIR)
-if (UNIX OR CYGWIN) 
+if (UNIX OR CYGWIN OR MINGW) 
     execute_process(COMMAND "${PYTHON_EXECUTABLE}" -c "import sys; sys.stdout.write('{}.{}'.format(*sys.version_info[:2]))"
         OUTPUT_VARIABLE PYTHON_VERSION)
     set(PYTHON_PACKAGE_INSTALL_DIR ${CMAKE_INSTALL_LIBDIR}/python${PYTHON_VERSION}/site-packages)
