CMAKE_VS_PLATFORM_TOOLSET may not be set.

E.g. for nmake.

CMakeLists.txt

@@ -180,6 +180,12 @@ endmacro()
 
 if(MSVC)
   zmq_check_cxx_flag_prepend("/W3")
+
+  if(MSVC_IDE)
+    set(MSVC_TOOLSET "-${CMAKE_VS_PLATFORM_TOOLSET}")
+  else()
+    set(MSVC_TOOLSET "")
+  endif()
 else()
   zmq_check_cxx_flag_prepend("-Wall")
 endif()
@@ -303,8 +309,8 @@ if(MSVC)
     set(OPENPGM_INCLUDE_DIRS ${OPENPGM_ROOT}/include)
     set(OPENPGM_LIBRARY_DIRS ${OPENPGM_ROOT}/lib)
     set(OPENPGM_LIBRARIES
-      optimized libpgm-${CMAKE_VS_PLATFORM_TOOLSET}-mt-${OPENPGM_VERSION_MAJOR}_${OPENPGM_VERSION_MINOR}_${OPENPGM_VERSION_MICRO}.lib
-      debug libpgm-${CMAKE_VS_PLATFORM_TOOLSET}-mt-gd-${OPENPGM_VERSION_MAJOR}_${OPENPGM_VERSION_MINOR}_${OPENPGM_VERSION_MICRO}.lib)
+      optimized libpgm${MSVC_TOOLSET}-mt-${OPENPGM_VERSION_MAJOR}_${OPENPGM_VERSION_MINOR}_${OPENPGM_VERSION_MICRO}.lib
+      debug libpgm${MSVC_TOOLSET}-mt-gd-${OPENPGM_VERSION_MAJOR}_${OPENPGM_VERSION_MINOR}_${OPENPGM_VERSION_MICRO}.lib)
   endif()
 else()
   if(WITH_OPENPGM)
@@ -601,15 +607,15 @@ if(MSVC)
   target_link_libraries(libzmq ${OPTIONAL_LIBRARIES})
   set_target_properties(libzmq PROPERTIES
     PUBLIC_HEADER "${public_headers}"
-    RELEASE_POSTFIX "-${CMAKE_VS_PLATFORM_TOOLSET}-mt-${ZMQ_VERSION_MAJOR}_${ZMQ_VERSION_MINOR}_${ZMQ_VERSION_PATCH}"
-    DEBUG_POSTFIX "-${CMAKE_VS_PLATFORM_TOOLSET}-mt-gd-${ZMQ_VERSION_MAJOR}_${ZMQ_VERSION_MINOR}_${ZMQ_VERSION_PATCH}"
+    RELEASE_POSTFIX "${MSVC_TOOLSET}-mt-${ZMQ_VERSION_MAJOR}_${ZMQ_VERSION_MINOR}_${ZMQ_VERSION_PATCH}"
+    DEBUG_POSTFIX "${MSVC_TOOLSET}-mt-gd-${ZMQ_VERSION_MAJOR}_${ZMQ_VERSION_MINOR}_${ZMQ_VERSION_PATCH}"
     RUNTIME_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/bin"
     COMPILE_DEFINITIONS "DLL_EXPORT")
   add_library(libzmq-static STATIC ${sources})
   set_target_properties(libzmq-static PROPERTIES
     PUBLIC_HEADER "${public_headers}"
-    RELEASE_POSTFIX "-${CMAKE_VS_PLATFORM_TOOLSET}-mt-s-${ZMQ_VERSION_MAJOR}_${ZMQ_VERSION_MINOR}_${ZMQ_VERSION_PATCH}"
-    DEBUG_POSTFIX "-${CMAKE_VS_PLATFORM_TOOLSET}-mt-sgd-${ZMQ_VERSION_MAJOR}_${ZMQ_VERSION_MINOR}_${ZMQ_VERSION_PATCH}"
+    RELEASE_POSTFIX "${MSVC_TOOLSET}-mt-s-${ZMQ_VERSION_MAJOR}_${ZMQ_VERSION_MINOR}_${ZMQ_VERSION_PATCH}"
+    DEBUG_POSTFIX "${MSVC_TOOLSET}-mt-sgd-${ZMQ_VERSION_MAJOR}_${ZMQ_VERSION_MINOR}_${ZMQ_VERSION_PATCH}"
     COMPILE_FLAGS "/D ZMQ_STATIC"
     OUTPUT_NAME "libzmq-static")
 else()
@@ -730,7 +736,7 @@ if(MSVC)
             PUBLIC_HEADER DESTINATION include
             COMPONENT SDK)
     if(NOT CMAKE_PDB_OUTPUT_DIRECTORY)
-      install(FILES ${CMAKE_CURRENT_BINARY_DIR}/bin/libzmq-${CMAKE_VS_PLATFORM_TOOLSET}-mt-gd-${ZMQ_VERSION_MAJOR}_${ZMQ_VERSION_MINOR}_${ZMQ_VERSION_PATCH}.pdb DESTINATION lib
+      install(FILES ${CMAKE_CURRENT_BINARY_DIR}/bin/libzmq${MSVC_TOOLSET}-mt-gd-${ZMQ_VERSION_MAJOR}_${ZMQ_VERSION_MINOR}_${ZMQ_VERSION_PATCH}.pdb DESTINATION lib
             COMPONENT SDK)
     endif()
   else()