diff --git a/CHANGELOG b/CHANGELOG
index 49dde18232..7f4b2d5982 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -75,6 +75,7 @@ Build system
 
 ### Cmake
 
+- A file cmake.log containing the changed options is written to the cmake build directory.
 - removed replacement of the settings of RelWithDebInfo
 
 
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 05d0865006..9a262002c2 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -807,3 +807,161 @@ if(${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_CURRENT_SOURCE_DIR})
     include(FeatureSummary)
     feature_summary(WHAT ALL)
 endif()
+
+# --------------------------------------------------------------
+# write log file of non-default parameter settings
+file(WRITE ${CMAKE_BINARY_DIR}/cmake.log "")
+if(AUTOBUILD)
+  file(APPEND ${CMAKE_BINARY_DIR}/cmake.log "-DAUTOBUILD=on")
+endif()
+if(NOT SHARED)
+  file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DSHARED=off")
+endif()
+if(NOT ZLIB)
+  file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DZLIB=off")
+endif()
+if(NOT READLINE)
+  file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DREADLINE=off")
+endif()
+if(NOT GMP)
+  file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DGMP=off")
+endif()
+if(STATIC_GMP)
+  file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DSTATIC_GMP=on")
+endif()
+if(NOT PAPILO)
+  file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DPAPILO=off")
+else()
+  if(PAPILO_DIR)
+    file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DPAPILO_DIR=${PAPILO_DIR}")
+  endif()
+endif()
+if(NOT ZIMPL)
+  file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DZIMPL=off")
+else()
+  if(ZIMPL_DIR)
+    file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DZIMPL_DIR=${ZIMPL_DIR}")
+  endif()
+endif()
+if(NOT AMPL)
+  file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DAMPL=off")
+endif()
+if(NOT IPOPT)
+  file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DIPOPT=off")
+else()
+  if(IPOPT_DIR)
+    file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DIPOPT_DIR=${IPOPT_DIR}")
+  endif()
+endif()
+if(LAPACK)
+  file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DLAPACK=on")
+endif()
+if(WORHP)
+  file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DWORHP=on")
+  if(WORHP_DIR)
+    file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DWORHP_DIR=${WORHP_DIR}")
+  endif()
+endif()
+if(PARASCIP)
+  file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DPARASCIP=on")
+endif()
+if(NOT THREADSAFE)
+  file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DTHREADSAFE=off")
+endif()
+if(LPSCHECK)
+  file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DLPSCHECK=on")
+endif()
+if(LEGACY)
+  file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DLEGACY=on")
+endif()
+if(NOBLKBUFMEM)
+  file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DNOBLKBUFMEM=on")
+endif()
+if(NOBLKMEM)
+  file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DNOBLKMEM=on")
+endif()
+if(NOBUFMEM)
+  file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DNOBUFMEM=on")
+endif()
+if(DEBUGSOL)
+  file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DDEBUGSOL=on")
+endif()
+if(SANITIZE_ADDRESS)
+  file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DSANITIZE_ADDRESS=on")
+endif()
+if(SANITIZE_MEMORY)
+  file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DSANITIZE_MEMORY=on")
+endif()
+if(SANITIZE_UNDEFINED)
+  file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DSANITIZE_UNDEFINED=on")
+endif()
+if(SANITIZE_THREAD)
+  file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DSANITIZE_THREAD=on")
+endif()
+if(COVERAGE)
+  file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DCOVERAGE=on")
+endif()
+if(MT)
+  file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DMT=on")
+endif()
+if(CXXONLY)
+  file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DCXXONLY=on")
+endif()
+if(TPI STREQUAL "tny")
+  file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DTPI=tny")
+elseif(TPI STREQUAL "omp")
+  file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DTPI=omp")
+endif()
+if(EXPRINT STREQUAL "none")
+  file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DEXPRINT=none")
+endif()
+if(LPS STREQUAL "spx")
+  if(SOPLEX_DIR)
+    file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DSOPLEX_DIR=${SOPLEX_DIR}")
+  endif()
+elseif(LPS STREQUAL "cpx")
+  file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DLPS=${LPS}")
+  if(CPLEX_DIR)
+    file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DCPLEX_DIR=${CPLEX_DIR}")
+  endif()
+elseif(LPS STREQUAL "glop")
+  file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DLPS=${LPS}")
+  if(GLOP_DIR)
+    file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DGLOP_DIR=${GLOP_DIR}")
+  endif()
+elseif(LPS STREQUAL "grb")
+  file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DLPS=${LPS}")
+  if(GUROBI_DIR)
+    file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DGUROBI_DIR=${GUROBI_DIR}")
+  endif()
+elseif(LPS STREQUAL "qso")
+  file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DLPS=${LPS}")
+  if(QSO_DIR)
+    file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DQSO_DIR=${QSOI_DIR}")
+  endif()
+elseif(LPS STREQUAL "clp")
+  file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DLPS=${LPS}")
+  if(CLP_DIR)
+    file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DCLP_DIR=${CLP_DIR}")
+  endif()
+elseif(LPS STREQUAL "xprs")
+  file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DLPS=${LPS}")
+  if(XPRESS_DIR)
+    file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DXPRESS_DIR=${XPRESS_DIR}")
+  endif()
+elseif(LPS STREQUAL "msk")
+  file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DLPS=${LPS}")
+  if(MOSEK_DIR)
+    file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DMOSEK_DIR=${MOSEK_DIR}")
+  endif()
+elseif(LPS STREQUAL "highs")
+  file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DLPS=${LPS}")
+elseif(LPS STREQUAL "none")
+  file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DLPS=${LPS}")
+endif()
+if(NOT SYM STREQUAL "sbliss")
+  file(APPEND ${CMAKE_BINARY_DIR}/cmake.log " -DSYM=${SYM}")
+endif()
+file(APPEND ${CMAKE_BINARY_DIR}/cmake.log "\n")
+message(STATUS "Written file with changed options to ${CMAKE_BINARY_DIR}/cmake.log.")
+# --------------------------------------------------------------