diff --git a/CMakeFilters.cmake b/CMakeFilters.cmake
index 141ab44..66b7efa 100644
--- a/CMakeFilters.cmake
+++ b/CMakeFilters.cmake
@@ -74,6 +74,7 @@ if (HDF5_ENABLE_Z_LIB_SUPPORT)
       set (H5_ZLIB_HEADER "zlib.h")
       set (ZLIB_INCLUDE_DIR_GEN ${ZLIB_INCLUDE_DIR})
       set (ZLIB_INCLUDE_DIRS ${ZLIB_INCLUDE_DIRS} ${ZLIB_INCLUDE_DIR})
+      set (zlib_PC_LIBS_PRIVATE "${ZLIB_LIBRARIES}")
     else ()
       if (HDF5_ALLOW_EXTERNAL_SUPPORT MATCHES "GIT" OR HDF5_ALLOW_EXTERNAL_SUPPORT MATCHES "TGZ")
         EXTERNAL_ZLIB_LIBRARY (${HDF5_ALLOW_EXTERNAL_SUPPORT})
@@ -128,8 +129,10 @@ if (HDF5_ENABLE_SZIP_SUPPORT)
     else()
         get_target_property(SZIP_STATIC_LIBRARY szip-shared IMPORTED_LOCATION_${upper_build_type})
     endif()
+    set(szip_PC_LIBS_PRIVATE "${SZIP_STATIC_LIBRARY}")
   elseif (TARGET szip-static)
     get_target_property(SZIP_STATIC_LIBRARY szip-static IMPORTED_LOCATION_${upper_build_type})
+    set(szip_PC_LIBS_PRIVATE "${SZIP_STATIC_LIBRARY}")
   elseif (SZIP_FOUND)
     set (H5_HAVE_FILTER_SZIP 1)
     set (H5_HAVE_SZLIB_H 1)
diff --git a/CMakeLists.txt b/CMakeLists.txt
index b75fdd2..a2e88fd 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -750,6 +750,9 @@ if (H5_HAVE_PARALLEL)
   if (MPI_C_LINK_FLAGS)
     set (CMAKE_EXE_LINKER_FLAGS "${MPI_C_LINK_FLAGS} ${CMAKE_EXE_LINKER_FLAGS}")
   endif ()
+  if(UNIX)
+    set(ompi-c_PC_LIBS_PRIVATE ${MPI_C_LIBRARIES})
+  endif()
 endif ()
 
 #option (DEFAULT_API_VERSION "Enable v1.12 API (v16, v18, v110, v112)" "v112")
diff --git a/c++/src/CMakeLists.txt b/c++/src/CMakeLists.txt
index 835d422..9a7176f 100644
--- a/c++/src/CMakeLists.txt
+++ b/c++/src/CMakeLists.txt
@@ -188,14 +188,14 @@ set (_PKG_CONFIG_VERSION "${HDF5_PACKAGE_VERSION}")
 set (_PKG_CONFIG_LIBS_PRIVATE)
 
 if (NOT ONLY_SHARED_LIBS)
-  set (_PKG_CONFIG_LIBS "${_PKG_CONFIG_LIBS} -l${HDF5_CPP_LIB_CORENAME}")
+  set (_PKG_CONFIG_LIBS "${_PKG_CONFIG_LIBS} -l${HDF5_CPP_LIB_CORENAME}${CMAKE_DEBUG_POSTFIX}")
 endif ()
 if (BUILD_SHARED_LIBS)
-  set (_PKG_CONFIG_SH_LIBS "${_PKG_CONFIG_SH_LIBS} -l${HDF5_CPP_LIB_CORENAME}")
+  set (_PKG_CONFIG_SH_LIBS "${_PKG_CONFIG_SH_LIBS} -l${HDF5_CPP_LIB_CORENAME}${CMAKE_DEBUG_POSTFIX}")
 endif ()
 
-set (_PKG_CONFIG_REQUIRES "${HDF5_LIB_CORENAME}-${HDF5_PACKAGE_VERSION}")
-set (_PKG_CONFIG_REQUIRES_PRIVATE "${HDF5_LIB_CORENAME}-${HDF5_PACKAGE_VERSION}")
+set (_PKG_CONFIG_REQUIRES "${HDF5_LIB_CORENAME}")
+set (_PKG_CONFIG_REQUIRES_PRIVATE "${HDF5_LIB_CORENAME}")
 
 configure_file (
     ${HDF_CONFIG_DIR}/libhdf5.pc.in
diff --git a/config/cmake_ext_mod/HDFMacros.cmake b/config/cmake_ext_mod/HDFMacros.cmake
index ae0ebca..095fae4 100644
--- a/config/cmake_ext_mod/HDFMacros.cmake
+++ b/config/cmake_ext_mod/HDFMacros.cmake
@@ -384,7 +384,7 @@ macro (HDF_DIR_PATHS package_prefix)
   endif ()
 
   #set the default debug suffix for all library targets
-    if(NOT CMAKE_DEBUG_POSTFIX)
+    if(NOT DEFINED CMAKE_DEBUG_POSTFIX)
       if (WIN32)
         set (CMAKE_DEBUG_POSTFIX "_D")
       else ()
diff --git a/fortran/src/CMakeLists.txt b/fortran/src/CMakeLists.txt
index e59a829..8da64dd 100644
--- a/fortran/src/CMakeLists.txt
+++ b/fortran/src/CMakeLists.txt
@@ -545,14 +545,14 @@ set (_PKG_CONFIG_VERSION "${HDF5_PACKAGE_VERSION}")
 set (_PKG_CONFIG_LIBS_PRIVATE)
 
 if (NOT ONLY_SHARED_LIBS)
-  set (_PKG_CONFIG_LIBS "${_PKG_CONFIG_LIBS} -l${HDF5_F90_LIB_CORENAME}")
+  set (_PKG_CONFIG_LIBS "${_PKG_CONFIG_LIBS} -l${HDF5_F90_LIB_CORENAME}${CMAKE_DEBUG_POSTFIX}")
 endif ()
 if (BUILD_SHARED_LIBS)
-  set (_PKG_CONFIG_SH_LIBS "${_PKG_CONFIG_SH_LIBS} -l${HDF5_F90_LIB_CORENAME}")
+  set (_PKG_CONFIG_SH_LIBS "${_PKG_CONFIG_SH_LIBS} -l${HDF5_F90_LIB_CORENAME}${CMAKE_DEBUG_POSTFIX}")
 endif ()
 
-set (_PKG_CONFIG_REQUIRES "${HDF5_LIB_CORENAME}-${HDF5_PACKAGE_VERSION}")
-set (_PKG_CONFIG_REQUIRES_PRIVATE "${HDF5_LIB_CORENAME}-${HDF5_PACKAGE_VERSION}")
+set (_PKG_CONFIG_REQUIRES "${HDF5_LIB_CORENAME}")
+set (_PKG_CONFIG_REQUIRES_PRIVATE "${HDF5_LIB_CORENAME}")
 
 configure_file (
     ${HDF_CONFIG_DIR}/libhdf5.pc.in
diff --git a/hl/c++/src/CMakeLists.txt b/hl/c++/src/CMakeLists.txt
index c516df1..89bd31f 100644
--- a/hl/c++/src/CMakeLists.txt
+++ b/hl/c++/src/CMakeLists.txt
@@ -99,14 +99,14 @@ set (_PKG_CONFIG_VERSION "${HDF5_PACKAGE_VERSION}")
 set (_PKG_CONFIG_LIBS_PRIVATE)
 
 if (NOT ONLY_SHARED_LIBS)
-  set (_PKG_CONFIG_LIBS "${_PKG_CONFIG_LIBS} -l${HDF5_HL_CPP_LIB_CORENAME}")
+  set (_PKG_CONFIG_LIBS "${_PKG_CONFIG_LIBS} -l${HDF5_HL_CPP_LIB_CORENAME}${CMAKE_DEBUG_POSTFIX}")
 endif ()
 if (BUILD_SHARED_LIBS)
-  set (_PKG_CONFIG_SH_LIBS "${_PKG_CONFIG_SH_LIBS} -l${HDF5_HL_CPP_LIB_CORENAME}")
+  set (_PKG_CONFIG_SH_LIBS "${_PKG_CONFIG_SH_LIBS} -l${HDF5_HL_CPP_LIB_CORENAME}${CMAKE_DEBUG_POSTFIX}")
 endif ()
 
-set (_PKG_CONFIG_REQUIRES "${HDF5_HL_LIB_CORENAME}-${HDF5_PACKAGE_VERSION}")
-set (_PKG_CONFIG_REQUIRES_PRIVATE "${HDF5_HL_LIB_CORENAME}-${HDF5_PACKAGE_VERSION}")
+set (_PKG_CONFIG_REQUIRES "${HDF5_HL_LIB_CORENAME}")
+set (_PKG_CONFIG_REQUIRES_PRIVATE "${HDF5_HL_LIB_CORENAME}")
 
 configure_file (
     ${HDF_CONFIG_DIR}/libhdf5.pc.in
diff --git a/hl/fortran/src/CMakeLists.txt b/hl/fortran/src/CMakeLists.txt
index 973299f..8eadfe5 100644
--- a/hl/fortran/src/CMakeLists.txt
+++ b/hl/fortran/src/CMakeLists.txt
@@ -332,14 +332,14 @@ set (_PKG_CONFIG_VERSION "${HDF5_PACKAGE_VERSION}")
 set (_PKG_CONFIG_LIBS_PRIVATE)
 
 if (NOT ONLY_SHARED_LIBS)
-  set (_PKG_CONFIG_LIBS "${_PKG_CONFIG_LIBS} -l${HDF5_HL_F90_LIB_CORENAME}")
+  set (_PKG_CONFIG_LIBS "${_PKG_CONFIG_LIBS} -l${HDF5_HL_F90_LIB_CORENAME}${CMAKE_DEBUG_POSTFIX}")
 endif ()
 if (BUILD_SHARED_LIBS)
-  set (_PKG_CONFIG_SH_LIBS "${_PKG_CONFIG_SH_LIBS} -l${HDF5_HL_F90_LIB_CORENAME}")
+  set (_PKG_CONFIG_SH_LIBS "${_PKG_CONFIG_SH_LIBS} -l${HDF5_HL_F90_LIB_CORENAME}${CMAKE_DEBUG_POSTFIX}")
 endif ()
 
-set (_PKG_CONFIG_REQUIRES "${HDF5_F90_LIB_CORENAME}-${HDF5_PACKAGE_VERSION}")
-set (_PKG_CONFIG_REQUIRES_PRIVATE "${HDF5_F90_LIB_CORENAME}-${HDF5_PACKAGE_VERSION}")
+set (_PKG_CONFIG_REQUIRES "${HDF5_F90_LIB_CORENAME}")
+set (_PKG_CONFIG_REQUIRES_PRIVATE "${HDF5_F90_LIB_CORENAME}")
 
 configure_file (
     ${HDF_CONFIG_DIR}/libhdf5.pc.in
diff --git a/hl/src/CMakeLists.txt b/hl/src/CMakeLists.txt
index 7678de8..2d398cc 100644
--- a/hl/src/CMakeLists.txt
+++ b/hl/src/CMakeLists.txt
@@ -131,14 +131,14 @@ set (_PKG_CONFIG_VERSION "${HDF5_PACKAGE_VERSION}")
 set (_PKG_CONFIG_LIBS_PRIVATE)
 
 if (NOT ONLY_SHARED_LIBS)
-  set (_PKG_CONFIG_LIBS "${_PKG_CONFIG_LIBS} -l${HDF5_HL_LIB_CORENAME}")
+  set (_PKG_CONFIG_LIBS "${_PKG_CONFIG_LIBS} -l${HDF5_HL_LIB_CORENAME}${CMAKE_DEBUG_POSTFIX}")
 endif ()
 if (BUILD_SHARED_LIBS)
-  set (_PKG_CONFIG_SH_LIBS "${_PKG_CONFIG_SH_LIBS} -l${HDF5_HL_LIB_CORENAME}")
+  set (_PKG_CONFIG_SH_LIBS "${_PKG_CONFIG_SH_LIBS} -l${HDF5_HL_LIB_CORENAME}${CMAKE_DEBUG_POSTFIX}")
 endif ()
 
-set (_PKG_CONFIG_REQUIRES "${HDF5_LIB_CORENAME}-${HDF5_PACKAGE_VERSION}")
-set (_PKG_CONFIG_REQUIRES_PRIVATE "${HDF5_LIB_CORENAME}-${HDF5_PACKAGE_VERSION}")
+set (_PKG_CONFIG_REQUIRES "${HDF5_LIB_CORENAME}")
+set (_PKG_CONFIG_REQUIRES_PRIVATE "${HDF5_LIB_CORENAME}")
 
 configure_file (
     ${HDF_CONFIG_DIR}/libhdf5.pc.in
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index b3c2226..ea80d60 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -1321,14 +1321,23 @@ foreach (libs ${LINK_LIBS} ${LINK_COMP_LIBS})
 endforeach ()
 
 if (NOT ONLY_SHARED_LIBS)
-  set (_PKG_CONFIG_LIBS "${_PKG_CONFIG_LIBS} -l${HDF5_LIB_CORENAME}")
+  set (_PKG_CONFIG_LIBS "${_PKG_CONFIG_LIBS} -l${HDF5_LIB_CORENAME}${CMAKE_DEBUG_POSTFIX}")
 endif ()
 if (BUILD_SHARED_LIBS)
-  set (_PKG_CONFIG_SH_LIBS "${_PKG_CONFIG_SH_LIBS} -l${HDF5_LIB_CORENAME}")
+  set (_PKG_CONFIG_SH_LIBS "${_PKG_CONFIG_SH_LIBS} -l${HDF5_LIB_CORENAME}${CMAKE_DEBUG_POSTFIX}")
 endif ()
 
 set (_PKG_CONFIG_REQUIRES)
 set (_PKG_CONFIG_REQUIRES_PRIVATE)
+set(_PKG_CONFIG_LIBS_PRIVATE " ${_PKG_CONFIG_LIBS_PRIVATE} ")
+foreach(_module IN ITEMS ompi-c szip zlib)
+    if(${_module}_PC_LIBS_PRIVATE)
+        foreach(_lib IN LISTS ${_module}_PC_LIBS_PRIVATE)
+            string(REPLACE " -l${_lib} " " " _PKG_CONFIG_LIBS_PRIVATE "${_PKG_CONFIG_LIBS_PRIVATE}")
+        endforeach()
+        string(APPEND _PKG_CONFIG_REQUIRES_PRIVATE " ${_module}")
+    endif()
+endforeach()
 
 configure_file (
     ${HDF_CONFIG_DIR}/libhdf5.pc.in