Merge topic 'implicit-incs-cleanup'

1293ed8507 ParseImplicitIncludeInfo: keep implicit incl. consistent when rerunning cmake
eaf53158f4 CrayPrgEnv/ParseImplicitIncludes: simplify for new implict include parser
ef8f237686 ParseImplicitIncludeInfo: add SunPro Fortran and PGI compiler, Cray fix

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !2894

38 files changed, 409 insertions, 179 deletions

diff --git a/Modules/CMakeDetermineCompilerABI.cmake b/Modules/CMakeDetermineCompilerABI.cmake
index e55b83f..fd1d5fb 100644
--- a/Modules/CMakeDetermineCompilerABI.cmake
+++ b/Modules/CMakeDetermineCompilerABI.cmake
@@ -89,16 +89,18 @@ function(CMAKE_DETERMINE_COMPILER_ABI lang src)
       endif()
 
       # Parse implicit include directory for this language, if available.
-      set (implicit_incdirs "")
       if(CMAKE_${lang}_VERBOSE_FLAG)
+        set (implicit_incdirs "")
         cmake_parse_implicit_include_info("${OUTPUT}" "${lang}"
           implicit_incdirs log rv)
         file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
           "Parsed ${lang} implicit include dir info from above output: rv=${rv}\n${log}\n\n")
-        if("${rv}" STREQUAL "done")  # update parent if parse completed ok
-          set(CMAKE_${lang}_IMPLICIT_INCLUDE_DIRECTORIES "${implicit_incdirs}" PARENT_SCOPE)
+        if("${rv}" STREQUAL "done")
+          # We parsed implicit include directories, so override the default initializer.
+          set(_CMAKE_${lang}_IMPLICIT_INCLUDE_DIRECTORIES_INIT "${implicit_incdirs}")
         endif()
       endif()
+      set(CMAKE_${lang}_IMPLICIT_INCLUDE_DIRECTORIES "${_CMAKE_${lang}_IMPLICIT_INCLUDE_DIRECTORIES_INIT}" PARENT_SCOPE)
 
       # Parse implicit linker information for this language, if available.
       set(implicit_dirs "")
diff --git a/Modules/CMakeParseImplicitIncludeInfo.cmake b/Modules/CMakeParseImplicitIncludeInfo.cmake
index 211406d..21e24b7 100644
--- a/Modules/CMakeParseImplicitIncludeInfo.cmake
+++ b/Modules/CMakeParseImplicitIncludeInfo.cmake
@@ -27,9 +27,52 @@ function(cmake_parse_implicit_include_line line lang id_var log_var state_var)
     endif()
   endif()
 
+  # PGI compiler
+  if("${CMAKE_${lang}_COMPILER_ID}" STREQUAL "PGI")
+    # pgc++ verbose output differs
+    if(("${lang}" STREQUAL "C" OR "${lang}" STREQUAL "Fortran") AND
+        "${line}" MATCHES "^/" AND
+        "${line}" MATCHES "/pgc |/pgf901 |/pgftnc " AND
+        "${line}" MATCHES " -cmdline ")
+      # cmdline has unparsed cmdline, remove it
+      string(REGEX REPLACE "-cmdline .*" "" line "${line}")
+      if("${line}" MATCHES " -nostdinc ")
+        set(rv "")    # defined, but empty
+      else()
+        string(REGEX MATCHALL " -stdinc ([^ ]*)" incs "${line}")
+        foreach(inc IN LISTS incs)
+          string(REGEX REPLACE " -stdinc ([^ ]*)" "\\1" idir "${inc}")
+          string(REPLACE ":" ";" idir "${idir}")
+          list(APPEND rv ${idir})
+        endforeach()
+      endif()
+      if(DEFINED rv)
+        string(APPEND log "  got implicit includes via PGI C/F parser!\n")
+      else()
+        string(APPEND log "  warning: PGI C/F parse failed!\n")
+      endif()
+    elseif("${lang}" STREQUAL "CXX" AND "${line}" MATCHES "^/" AND
+           "${line}" MATCHES "/pggpp1 " AND "${line}" MATCHES " -I")
+      # oddly, -Mnostdinc does not get rid of system -I's, at least in
+      # PGI 18.10.1 ...
+      string(REGEX MATCHALL " (-I ?)([^ ]*)" incs "${line}")
+      foreach(inc IN LISTS incs)
+        string(REGEX REPLACE " (-I ?)([^ ]*)" "\\2" idir "${inc}")
+        if(NOT "${idir}" STREQUAL "-")   # filter out "-I-"
+          list(APPEND rv "${idir}")
+        endif()
+      endforeach()
+      if(DEFINED rv)
+        string(APPEND log "  got implicit includes via PGI CXX parser!\n")
+      else()
+        string(APPEND log "  warning: PGI CXX parse failed!\n")
+      endif()
+    endif()
+  endif()
+
   # SunPro compiler
   if("${CMAKE_${lang}_COMPILER_ID}" STREQUAL "SunPro" AND
-     "${line}" MATCHES "-D__SUNPRO_C")
+     ("${line}" MATCHES "-D__SUNPRO_C" OR "${line}" MATCHES "-D__SUNPRO_F") )
     string(REGEX MATCHALL " (-I ?)([^ ]*)" incs "${line}")
     foreach(inc IN LISTS incs)
       string(REGEX REPLACE " (-I ?)([^ ]*)" "\\2" idir "${inc}")
@@ -38,8 +81,10 @@ function(cmake_parse_implicit_include_line line lang id_var log_var state_var)
       endif()
     endforeach()
     if(rv)
-      # /usr/include appears to be hardwired in
-      list(APPEND rv "/usr/include")
+      if ("${lang}" STREQUAL "C" OR "${lang}" STREQUAL "CXX")
+        # /usr/include appears to be hardwired in
+        list(APPEND rv "/usr/include")
+      endif()
       string(APPEND log "  got implicit includes via sunpro parser!\n")
     else()
       string(APPEND log "  warning: sunpro parse failed!\n")
diff --git a/Modules/Compiler/Cray-C.cmake b/Modules/Compiler/Cray-C.cmake
index d34154c..b3c96ee 100644
--- a/Modules/Compiler/Cray-C.cmake
+++ b/Modules/Compiler/Cray-C.cmake
@@ -8,13 +8,13 @@ string(APPEND CMAKE_C_FLAGS_MINSIZEREL_INIT " -DNDEBUG")
 string(APPEND CMAKE_C_FLAGS_RELEASE_INIT " -DNDEBUG")
 
 if (CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL 8.1)
-  set(CMAKE_C90_STANDARD_COMPILE_OPTION  -h noc99,conform)
-  set(CMAKE_C90_EXTENSION_COMPILE_OPTION -h noc99,gnu)
-  set(CMAKE_C99_STANDARD_COMPILE_OPTION  -h c99,conform)
-  set(CMAKE_C99_EXTENSION_COMPILE_OPTION -h c99,gnu)
+  set(CMAKE_C90_STANDARD_COMPILE_OPTION  "-h noc99,conform")
+  set(CMAKE_C90_EXTENSION_COMPILE_OPTION "-h noc99,gnu")
+  set(CMAKE_C99_STANDARD_COMPILE_OPTION  "-h c99,conform")
+  set(CMAKE_C99_EXTENSION_COMPILE_OPTION "-h c99,gnu")
   if (CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL 8.5)
-    set(CMAKE_C11_STANDARD_COMPILE_OPTION  -h std=c11,conform)
-    set(CMAKE_C11_EXTENSION_COMPILE_OPTION -h std=c11,gnu)
+    set(CMAKE_C11_STANDARD_COMPILE_OPTION  "-h std=c11,conform")
+    set(CMAKE_C11_EXTENSION_COMPILE_OPTION "-h std=c11,gnu")
   endif ()
 endif ()
 
diff --git a/Modules/Compiler/Cray-CXX.cmake b/Modules/Compiler/Cray-CXX.cmake
index ff97e92..bbb5718 100644
--- a/Modules/Compiler/Cray-CXX.cmake
+++ b/Modules/Compiler/Cray-CXX.cmake
@@ -2,21 +2,21 @@
 # file Copyright.txt or https://cmake.org/licensing for details.
 
 include(Compiler/Cray)
-__compiler_cray(C)
+__compiler_cray(CXX)
 
 string(APPEND CMAKE_CXX_FLAGS_MINSIZEREL_INIT " -DNDEBUG")
 string(APPEND CMAKE_CXX_FLAGS_RELEASE_INIT " -DNDEBUG")
 
 if (CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 8.1)
-  set(CMAKE_CXX98_STANDARD_COMPILE_OPTION  -h conform)
-  set(CMAKE_CXX98_EXTENSION_COMPILE_OPTION -h gnu)
+  set(CMAKE_CXX98_STANDARD_COMPILE_OPTION  "-h conform")
+  set(CMAKE_CXX98_EXTENSION_COMPILE_OPTION "-h gnu")
   if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 8.4)
-    set(CMAKE_CXX11_STANDARD_COMPILE_OPTION  -h std=c++11)
-    set(CMAKE_CXX11_EXTENSION_COMPILE_OPTION -h std=c++11,gnu)
+    set(CMAKE_CXX11_STANDARD_COMPILE_OPTION  "-h std=c++11")
+    set(CMAKE_CXX11_EXTENSION_COMPILE_OPTION "-h std=c++11,gnu")
   endif()
   if(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 8.6)
-    set(CMAKE_CXX14_STANDARD_COMPILE_OPTION  -h std=c++14)
-    set(CMAKE_CXX14_EXTENSION_COMPILE_OPTION -h std=c++14,gnu)
+    set(CMAKE_CXX14_STANDARD_COMPILE_OPTION  "-h std=c++14")
+    set(CMAKE_CXX14_EXTENSION_COMPILE_OPTION "-h std=c++14,gnu")
   endif ()
 endif ()
 
diff --git a/Modules/Compiler/CrayPrgEnv-C.cmake b/Modules/Compiler/CrayPrgEnv-C.cmake
index 6b461ce..76aa93b 100644
--- a/Modules/Compiler/CrayPrgEnv-C.cmake
+++ b/Modules/Compiler/CrayPrgEnv-C.cmake
@@ -4,8 +4,4 @@ endif()
 set(__craylinux_crayprgenv_c 1)
 
 include(Compiler/CrayPrgEnv)
-macro(__CrayPrgEnv_setup_C compiler_cmd link_cmd)
-  __CrayPrgEnv_setup(C
-    ${CMAKE_ROOT}/Modules/CMakeCCompilerABI.c
-    ${compiler_cmd} ${link_cmd})
-endmacro()
+__CrayPrgEnv_setup(C)
diff --git a/Modules/Compiler/CrayPrgEnv-CXX.cmake b/Modules/Compiler/CrayPrgEnv-CXX.cmake
index aad85b6..442370e 100644
--- a/Modules/Compiler/CrayPrgEnv-CXX.cmake
+++ b/Modules/Compiler/CrayPrgEnv-CXX.cmake
@@ -4,8 +4,4 @@ endif()
 set(__craylinux_crayprgenv_cxx 1)
 
 include(Compiler/CrayPrgEnv)
-macro(__CrayPrgEnv_setup_CXX compiler_cmd link_cmd)
-  __CrayPrgEnv_setup(CXX
-    ${CMAKE_ROOT}/Modules/CMakeCXXCompilerABI.cpp
-    ${compiler_cmd} ${link_cmd})
-endmacro()
+__CrayPrgEnv_setup(CXX)
diff --git a/Modules/Compiler/CrayPrgEnv-Cray-C.cmake b/Modules/Compiler/CrayPrgEnv-Cray-C.cmake
deleted file mode 100644
index 547a4b4..0000000
--- a/Modules/Compiler/CrayPrgEnv-Cray-C.cmake
+++ /dev/null
@@ -1,7 +0,0 @@
-if(__craylinux_crayprgenv_cray_c)
-  return()
-endif()
-set(__craylinux_crayprgenv_cray_c 1)
-
-include(Compiler/CrayPrgEnv-C)
-__CrayPrgEnv_setup_C("/opt/cray/cce/.*/ccfe" "/opt/cray/cce/.*/ld")
diff --git a/Modules/Compiler/CrayPrgEnv-Cray-CXX.cmake b/Modules/Compiler/CrayPrgEnv-Cray-CXX.cmake
deleted file mode 100644
index df8452c..0000000
--- a/Modules/Compiler/CrayPrgEnv-Cray-CXX.cmake
+++ /dev/null
@@ -1,7 +0,0 @@
-if(__craylinux_crayprgenv_cray_cxx)
-  return()
-endif()
-set(__craylinux_crayprgenv_cray_cxx 1)
-
-include(Compiler/CrayPrgEnv-CXX)
-__CrayPrgEnv_setup_CXX("/opt/cray/cce/.*/ccfe" "/opt/cray/cce/.*/ld")
diff --git a/Modules/Compiler/CrayPrgEnv-Cray-Fortran.cmake b/Modules/Compiler/CrayPrgEnv-Cray-Fortran.cmake
deleted file mode 100644
index 9f46a04..0000000
--- a/Modules/Compiler/CrayPrgEnv-Cray-Fortran.cmake
+++ /dev/null
@@ -1,7 +0,0 @@
-if(__craylinux_crayprgenv_cray_fortran)
-  return()
-endif()
-set(__craylinux_crayprgenv_cray_fortran 1)
-
-include(Compiler/CrayPrgEnv-Fortran)
-__CrayPrgEnv_setup_Fortran("/opt/cray/cce/.*/ftnfe" "/opt/cray/cce/.*/ld")
diff --git a/Modules/Compiler/CrayPrgEnv-Fortran.cmake b/Modules/Compiler/CrayPrgEnv-Fortran.cmake
index 9c4d269..85f82d3 100644
--- a/Modules/Compiler/CrayPrgEnv-Fortran.cmake
+++ b/Modules/Compiler/CrayPrgEnv-Fortran.cmake
@@ -4,8 +4,4 @@ endif()
 set(__craylinux_crayprgenv_fortran 1)
 
 include(Compiler/CrayPrgEnv)
-macro(__CrayPrgEnv_setup_Fortran compiler_cmd link_cmd)
-  __CrayPrgEnv_setup(Fortran
-    ${CMAKE_ROOT}/Modules/CMakeFortranCompilerABI.F
-    ${compiler_cmd} ${link_cmd})
-endmacro()
+__CrayPrgEnv_setup(Fortran)
diff --git a/Modules/Compiler/CrayPrgEnv-GNU-C.cmake b/Modules/Compiler/CrayPrgEnv-GNU-C.cmake
deleted file mode 100644
index 248081b..0000000
--- a/Modules/Compiler/CrayPrgEnv-GNU-C.cmake
+++ /dev/null
@@ -1,7 +0,0 @@
-if(__craylinux_crayprgenv_gnu_c)
-  return()
-endif()
-set(__craylinux_crayprgenv_gnu_c 1)
-
-include(Compiler/CrayPrgEnv-C)
-__CrayPrgEnv_setup_C("/opt/gcc/.*/cc1" "/opt/gcc/.*/collect2")
diff --git a/Modules/Compiler/CrayPrgEnv-GNU-CXX.cmake b/Modules/Compiler/CrayPrgEnv-GNU-CXX.cmake
deleted file mode 100644
index be4eb6d..0000000
--- a/Modules/Compiler/CrayPrgEnv-GNU-CXX.cmake
+++ /dev/null
@@ -1,7 +0,0 @@
-if(__craylinux_crayprgenv_gnu_cxx)
-  return()
-endif()
-set(__craylinux_crayprgenv_gnu_cxx 1)
-
-include(Compiler/CrayPrgEnv-CXX)
-__CrayPrgEnv_setup_CXX("/opt/gcc/.*/cc1plus" "/opt/gcc/.*/collect2")
diff --git a/Modules/Compiler/CrayPrgEnv-GNU-Fortran.cmake b/Modules/Compiler/CrayPrgEnv-GNU-Fortran.cmake
deleted file mode 100644
index 8bd23ff..0000000
--- a/Modules/Compiler/CrayPrgEnv-GNU-Fortran.cmake
+++ /dev/null
@@ -1,7 +0,0 @@
-if(__craylinux_crayprgenv_gnu_fortran)
-  return()
-endif()
-set(__craylinux_crayprgenv_gnu_fortran 1)
-
-include(Compiler/CrayPrgEnv-Fortran)
-__CrayPrgEnv_setup_Fortran("/opt/gcc/.*/f951" "/opt/gcc/.*/collect2")
diff --git a/Modules/Compiler/CrayPrgEnv-Intel-C.cmake b/Modules/Compiler/CrayPrgEnv-Intel-C.cmake
deleted file mode 100644
index 83c4e38..0000000
--- a/Modules/Compiler/CrayPrgEnv-Intel-C.cmake
+++ /dev/null
@@ -1,7 +0,0 @@
-if(__craylinux_crayprgenv_intel_c)
-  return()
-endif()
-set(__craylinux_crayprgenv_intel_c 1)
-
-include(Compiler/CrayPrgEnv-C)
-__CrayPrgEnv_setup_C("/opt/intel/.*/mcpcom" "^ld ")
diff --git a/Modules/Compiler/CrayPrgEnv-Intel-CXX.cmake b/Modules/Compiler/CrayPrgEnv-Intel-CXX.cmake
deleted file mode 100644
index 3c3c3e6..0000000
--- a/Modules/Compiler/CrayPrgEnv-Intel-CXX.cmake
+++ /dev/null
@@ -1,7 +0,0 @@
-if(__craylinux_crayprgenv_intel_cxx)
-  return()
-endif()
-set(__craylinux_crayprgenv_intel_cxx 1)
-
-include(Compiler/CrayPrgEnv-CXX)
-__CrayPrgEnv_setup_CXX("/opt/intel/.*/mcpcom" "^ld ")
diff --git a/Modules/Compiler/CrayPrgEnv-Intel-Fortran.cmake b/Modules/Compiler/CrayPrgEnv-Intel-Fortran.cmake
deleted file mode 100644
index 08a316d..0000000
--- a/Modules/Compiler/CrayPrgEnv-Intel-Fortran.cmake
+++ /dev/null
@@ -1,7 +0,0 @@
-if(__craylinux_crayprgenv_intel_fortran)
-  return()
-endif()
-set(__craylinux_crayprgenv_intel_fortran 1)
-
-include(Compiler/CrayPrgEnv-Fortran)
-__CrayPrgEnv_setup_Fortran("/opt/intel/.*/fortcom" "^ld ")
diff --git a/Modules/Compiler/CrayPrgEnv-PGI-C.cmake b/Modules/Compiler/CrayPrgEnv-PGI-C.cmake
deleted file mode 100644
index f45767c..0000000
--- a/Modules/Compiler/CrayPrgEnv-PGI-C.cmake
+++ /dev/null
@@ -1,7 +0,0 @@
-if(__craylinux_crayprgenv_pgi_c)
-  return()
-endif()
-set(__craylinux_crayprgenv_pgi_c 1)
-
-include(Compiler/CrayPrgEnv-C)
-__CrayPrgEnv_setup_C("/opt/pgi/[^ ]*/pgc" "/usr/bin/ld")
diff --git a/Modules/Compiler/CrayPrgEnv-PGI-CXX.cmake b/Modules/Compiler/CrayPrgEnv-PGI-CXX.cmake
deleted file mode 100644
index a2a286f..0000000
--- a/Modules/Compiler/CrayPrgEnv-PGI-CXX.cmake
+++ /dev/null
@@ -1,7 +0,0 @@
-if(__craylinux_crayprgenv_pgi_cxx)
-  return()
-endif()
-set(__craylinux_crayprgenv_pgi_cxx 1)
-
-include(Compiler/CrayPrgEnv-CXX)
-__CrayPrgEnv_setup_CXX("/opt/pgi/[^ ]*/pgcpp" "/usr/bin/ld")
diff --git a/Modules/Compiler/CrayPrgEnv-PGI-Fortran.cmake b/Modules/Compiler/CrayPrgEnv-PGI-Fortran.cmake
deleted file mode 100644
index f6ba7c0..0000000
--- a/Modules/Compiler/CrayPrgEnv-PGI-Fortran.cmake
+++ /dev/null
@@ -1,7 +0,0 @@
-if(__craylinux_crayprgenv_pgi_fortran)
-  return()
-endif()
-set(__craylinux_crayprgenv_pgi_fortran 1)
-
-include(Compiler/CrayPrgEnv-Fortran)
-__CrayPrgEnv_setup_Fortran("/opt/pgi/[^ ]*/pgf" "/usr/bin/ld")
diff --git a/Modules/Compiler/CrayPrgEnv.cmake b/Modules/Compiler/CrayPrgEnv.cmake
index 05e3fc7..6c1c770 100644
--- a/Modules/Compiler/CrayPrgEnv.cmake
+++ b/Modules/Compiler/CrayPrgEnv.cmake
@@ -4,54 +4,7 @@ if(__craylinux_crayprgenv)
 endif()
 set(__craylinux_crayprgenv 1)
 
-macro(__cray_extract_args cmd tag_regex out_var make_absolute)
-  string(REGEX MATCHALL "${tag_regex}" args "${cmd}")
-  foreach(arg IN LISTS args)
-    string(REGEX REPLACE "^${tag_regex}$" "\\2" param "${arg}")
-    if(make_absolute)
-      get_filename_component(param "${param}" ABSOLUTE)
-    endif()
-    list(APPEND ${out_var} ${param})
-  endforeach()
-endmacro()
-
-function(__cray_extract_implicit src compiler_cmd link_cmd lang include_dirs_var link_dirs_var link_libs_var)
-  set(BIN "${CMAKE_PLATFORM_INFO_DIR}/CrayExtractImplicit_${lang}.bin")
-  execute_process(
-    COMMAND ${CMAKE_${lang}_COMPILER} ${CMAKE_${lang}_VERBOSE_FLAG} -o ${BIN}
-    RESULT_VARIABLE result
-    OUTPUT_VARIABLE output
-    ERROR_VARIABLE error
-    )
-  if(EXISTS "${BIN}")
-    file(REMOVE "${BIN}")
-  endif()
-  set(include_dirs)
-  set(link_dirs)
-  set(link_libs)
-  string(REGEX REPLACE "\r?\n" ";" output_lines "${output}\n${error}")
-  foreach(line IN LISTS output_lines)
-    if("${line}" MATCHES "${compiler_cmd}")
-      __cray_extract_args("${line}" " -(I ?|isystem )([^ ]*)" include_dirs 1)
-      set(processed_include 1)
-    endif()
-    if("${line}" MATCHES "${link_cmd}")
-      __cray_extract_args("${line}" " -(L ?)([^ ]*)" link_dirs 1)
-      __cray_extract_args("${line}" " -(l ?)([^ ]*)" link_libs 0)
-      set(processed_link 1)
-    endif()
-    if(processed_include AND processed_link)
-      break()
-    endif()
-  endforeach()
-
-  set(${include_dirs_var} "${include_dirs}" PARENT_SCOPE)
-  set(${link_dirs_var}    "${link_dirs}" PARENT_SCOPE)
-  set(${link_libs_var}    "${link_libs}" PARENT_SCOPE)
-  set(CRAY_${lang}_EXTRACTED_IMPLICIT 1 CACHE INTERNAL "" FORCE)
-endfunction()
-
-macro(__CrayPrgEnv_setup lang test_src compiler_cmd link_cmd)
+macro(__CrayPrgEnv_setup lang)
   if(DEFINED ENV{CRAYPE_VERSION})
     message(STATUS "Cray Programming Environment $ENV{CRAYPE_VERSION} ${lang}")
   elseif(DEFINED ENV{ASYNCPE_VERSION})
@@ -81,12 +34,4 @@ macro(__CrayPrgEnv_setup lang test_src compiler_cmd link_cmd)
     set(CMAKE_FIND_LIBRARY_SUFFIXES ".a")
     set(CMAKE_LINK_SEARCH_START_STATIC TRUE)
   endif()
-  if(NOT CRAY_${lang}_EXTRACTED_IMPLICIT)
-    __cray_extract_implicit(
-      ${test_src} ${compiler_cmd} ${link_cmd} ${lang}
-      CMAKE_${lang}_IMPLICIT_INCLUDE_DIRECTORIES
-      CMAKE_${lang}_IMPLICIT_LINK_DIRECTORIES
-      CMAKE_${lang}_IMPLICIT_LINK_LIBRARIES
-      )
-  endif()
 endmacro()
diff --git a/Modules/Platform/UnixPaths.cmake b/Modules/Platform/UnixPaths.cmake
index fc22fce..4ae4514 100644
--- a/Modules/Platform/UnixPaths.cmake
+++ b/Modules/Platform/UnixPaths.cmake
@@ -69,14 +69,17 @@ list(APPEND CMAKE_PLATFORM_IMPLICIT_INCLUDE_DIRECTORIES
   )
 
 # Default per-language values.  These may be later replaced after
-# parsing the implicit link directories from compiler output.
-list(APPEND CMAKE_C_IMPLICIT_INCLUDE_DIRECTORIES
+# parsing the implicit directory information from compiler output.
+set(_CMAKE_C_IMPLICIT_INCLUDE_DIRECTORIES_INIT
+  ${CMAKE_C_IMPLICIT_INCLUDE_DIRECTORIES}
   /usr/include
   )
-list(APPEND CMAKE_CXX_IMPLICIT_INCLUDE_DIRECTORIES
+set(_CMAKE_CXX_IMPLICIT_INCLUDE_DIRECTORIES_INIT
+  ${CMAKE_CXX_IMPLICIT_INCLUDE_DIRECTORIES}
   /usr/include
   )
-list(APPEND CMAKE_CUDA_IMPLICIT_INCLUDE_DIRECTORIES
+set(_CMAKE_CUDA_IMPLICIT_INCLUDE_DIRECTORIES_INIT
+  ${CMAKE_CUDA_IMPLICIT_INCLUDE_DIRECTORIES}
   /usr/include
   )
 
diff --git a/Tests/RunCMake/ParseImplicitIncludeInfo/ParseImplicitIncludeInfo.cmake b/Tests/RunCMake/ParseImplicitIncludeInfo/ParseImplicitIncludeInfo.cmake
index a9029dc..ce8d45b 100644
--- a/Tests/RunCMake/ParseImplicitIncludeInfo/ParseImplicitIncludeInfo.cmake
+++ b/Tests/RunCMake/ParseImplicitIncludeInfo/ParseImplicitIncludeInfo.cmake
@@ -21,6 +21,10 @@ set(targets
   freebsd-C-Clang-3.3.0 freebsd-CXX-Clang-3.3.0 freebsd-Fortran-GNU-4.6.4
   linux-C-GNU-7.3.0 linux-CXX-GNU-7.3.0 linux-Fortran-GNU-7.3.0
   linux-C-Intel-18.0.0.20170811 linux-CXX-Intel-18.0.0.20170811
+  linux-C-PGI-18.10.1 linux-CXX-PGI-18.10.1
+    linux-Fortran-PGI-18.10.1 linux_pgf77-Fortran-PGI-18.10.1
+    linux_nostdinc-C-PGI-18.10.1 linux_nostdinc-CXX-PGI-18.10.1
+    linux_nostdinc-Fortran-PGI-18.10.1
   linux-C-XL-12.1.0 linux-CXX-XL-12.1.0 linux-Fortran-XL-14.1.0
     linux_nostdinc-C-XL-12.1.0 linux_nostdinc-CXX-XL-12.1.0
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+/usr/bin/ld /usr/lib/x86_64-linux-gnu/crt1.o /usr/lib/x86_64-linux-gnu/crti.o /mnt/pgi/linux86-64/18.10/lib/trace_init.o /usr/lib/gcc/x86_64-linux-gnu/7/crtbegin.o /mnt/pgi/linux86-64/18.10/lib/initmp.o /mnt/pgi/linux86-64/18.10/lib/pgfmain.o --eh-frame-hdr -m elf_x86_64 -dynamic-linker /lib64/ld-linux-x86-64.so.2 /mnt/pgi/linux86-64/18.10/lib/pgi.ld -L/mnt/pgi/linux86-64/18.10/lib -L/usr/lib64 -L/usr/lib/gcc/x86_64-linux-gnu/7 CMakeFiles/cmTC_ea063.dir/CMakeFortranCompilerABI.F.o -rpath /mnt/pgi/linux86-64/18.10/lib -rpath /usr/lib/gcc/x86_64-linux-gnu/7/../../../../lib64 -o cmTC_ea063 -L/usr/lib/gcc/x86_64-linux-gnu/7/../../../../lib64 -lpgftnrtl -lpgmp -lnuma -lpthread --start-group -lpgmath -lnspgc -lpgc --end-group -lrt -lpthread -lm -lgcc -lc -lgcc -lgcc_s /usr/lib/gcc/x86_64-linux-gnu/7/crtend.o /usr/lib/x86_64-linux-gnu/crtn.o
+make[1]: Leaving directory '/tmp/ii/CMakeFiles/CMakeTmp'
diff --git a/Tests/RunCMake/ParseImplicitIncludeInfo/data/linux_pgf77-Fortran-PGI-18.10.1.output b/Tests/RunCMake/ParseImplicitIncludeInfo/data/linux_pgf77-Fortran-PGI-18.10.1.output
new file mode 100644
index 0000000..289c530
--- /dev/null
+++ b/Tests/RunCMake/ParseImplicitIncludeInfo/data/linux_pgf77-Fortran-PGI-18.10.1.output
@@ -0,0 +1 @@
+/mnt/pgi/linux86-64/18.10/include-gcc70;/mnt/pgi/linux86-64/18.10/include;/usr/lib/gcc/x86_64-linux-gnu/7/include;/usr/local/include;/usr/lib/gcc/x86_64-linux-gnu/7/include-fixed;/usr/include/x86_64-linux-gnu;/usr/include
diff --git a/Tests/RunCMake/ParseImplicitIncludeInfo/data/sunos-Fortran-SunPro-8.8.0.input b/Tests/RunCMake/ParseImplicitIncludeInfo/data/sunos-Fortran-SunPro-8.8.0.input
new file mode 100644
index 0000000..4a2bedd
--- /dev/null
+++ b/Tests/RunCMake/ParseImplicitIncludeInfo/data/sunos-Fortran-SunPro-8.8.0.input
@@ -0,0 +1,40 @@
+CMAKE_LANG=Fortran
+CMAKE_Fortran_COMPILER_ABI=
+CMAKE_Fortran_COMPILER_AR=
+CMAKE_Fortran_COMPILER_ARCHITECTURE_ID=
+CMAKE_Fortran_COMPILER_EXTERNAL_TOOLCHAIN=
+CMAKE_Fortran_COMPILER_ID=SunPro
+CMAKE_Fortran_COMPILER_LAUNCHER=
+CMAKE_Fortran_COMPILER_LOADED=1
+CMAKE_Fortran_COMPILER_RANLIB=
+CMAKE_Fortran_COMPILER_TARGET=
+CMAKE_Fortran_COMPILER_VERSION=8.8.0
+CMAKE_Fortran_COMPILER_VERSION_INTERAL=
+Change Dir: /tmp/ii/CMakeFiles/CMakeTmp
+
+Run Build Command:"/opt/csw/bin/gmake" "cmTC_adcec/fast"
+/opt/csw/bin/gmake -f CMakeFiles/cmTC_adcec.dir/build.make CMakeFiles/cmTC_adcec.dir/build
+gmake[1]: Entering directory '/tmp/ii/CMakeFiles/CMakeTmp'
+Building Fortran object CMakeFiles/cmTC_adcec.dir/CMakeFortranCompilerABI.F.o
+/opt/developerstudio12.6/bin/sunf95   -v -c /tmp/CMake/Modules/CMakeFortranCompilerABI.F -o CMakeFiles/cmTC_adcec.dir/CMakeFortranCompilerABI.F.o
+### f90: Note: NLSPATH = /opt/developerstudio12.6/bin/../lib/locale/%L/LC_MESSAGES/%N.cat:/opt/developerstudio12.6/bin/../../lib/locale/%L/LC_MESSAGES/%N.cat
+###     command line files and options (expanded):
+### -v -c /tmp/CMake/Modules/CMakeFortranCompilerABI.F -o CMakeFiles/cmTC_adcec.dir/CMakeFortranCompilerABI.F.o
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+/opt/developerstudio12.6/lib/compilers/bin/f90comp -E/tmp/CMake/Modules/CMakeFortranCompilerABI.F -m3 -ev -xall -xivdep=loop -H "/opt/developerstudio12.6/bin/f90 -v -c " -I/opt/developerstudio12.6/lib/compilers/include/f95 -p/opt/developerstudio12.6/lib/compilers/modules -m32 -y-m32 -xmemalign=8i -iorounding=processor-defined -xhasc=yes -xdebuginfo=%none -y-xdebuginfo=%none -y-xglobalize=no -xcache=generic -y-xcache=generic -y-xassume_control=optimize -xassume_control=optimize -y-xdbggen=dwarf+incl -keepmod=yes -y-ir -y/tmp/f90comp.1548681160.26580.02.ir /tmp/fpp.1548681160.26580.01.f
+/opt/developerstudio12.6/lib/compilers/bin/cg -Qy -fsimple=0 -xarch=sparcvis2 -m32 -xchip=generic -xcache=generic -comdat -ftrap=division,invalid,overflow -xdebuginfo=%none -xbuiltin=%none -xcode=abs32 -xannotate=yes -xmemalign=8i -xprefetch=auto,explicit -xprefetch_auto_type=no%indirect_array_access -xcheck=stkovf -xcheck=noreturn -xvector=no -oo CMakeFiles/cmTC_adcec.dir/CMakeFortranCompilerABI.F.o -ir /tmp/f90comp.1548681160.26580.02.ir
+rm /tmp/f90comp.1548681160.26580.02.ir
+rm /tmp/fpp.1548681160.26580.01.f
+Linking Fortran executable cmTC_adcec
+/tmp/CMake/bin/cmake -E cmake_link_script CMakeFiles/cmTC_adcec.dir/link.txt --verbose=1
+/opt/developerstudio12.6/bin/sunf95   -v   CMakeFiles/cmTC_adcec.dir/CMakeFortranCompilerABI.F.o  -o cmTC_adcec
+### f90: Note: NLSPATH = /opt/developerstudio12.6/bin/../lib/locale/%L/LC_MESSAGES/%N.cat:/opt/developerstudio12.6/bin/../../lib/locale/%L/LC_MESSAGES/%N.cat
+###     command line files and options (expanded):
+### -v CMakeFiles/cmTC_adcec.dir/CMakeFortranCompilerABI.F.o -o cmTC_adcec
+### f90: Note: LD_LIBRARY_PATH = (null)
+### f90: Note: LD_RUN_PATH     = (null)
+### f90: Note: LD_OPTIONS      = (null)
+ln -s /opt/developerstudio12.6/lib/compilers /tmp/lib_link.1548681161.26655.01
+/usr/ccs/bin/ld -zld32=-S/tmp/lib_link.1548681161.26655.01/libldstab_ws.so -zld64=-S/tmp/lib_link.1548681161.26655.01/sparcv9/libldstab_ws.so -zld32=-S/tmp/lib_link.1548681161.26655.01/libld_annotate.so -zld64=-S/tmp/lib_link.1548681161.26655.01/sparcv9/libld_annotate.so /opt/developerstudio12.6/lib/compilers/crti.o /opt/developerstudio12.6/lib/compilers/crt1.o /opt/developerstudio12.6/lib/compilers/misalign.o /opt/developerstudio12.6/lib/compilers/values-xi.o CMakeFiles/cmTC_adcec.dir/CMakeFortranCompilerABI.F.o -o cmTC_adcec -Y "P,/opt/developerstudio12.6/lib/compilers/sparcvis2:/opt/developerstudio12.6/lib/compilers:/opt/developerstudio12.6/lib:/usr/ccs/lib:/lib:/usr/lib" -Qy -R/opt/developerstudio12.6/lib -t -lfsu -lsunmath -lmtsk -lm -lc /opt/developerstudio12.6/lib/compilers/crtn.o
+rm /tmp/lib_link.1548681161.26655.01
+gmake[1]: Leaving directory '/tmp/ii/CMakeFiles/CMakeTmp'
diff --git a/Tests/RunCMake/ParseImplicitIncludeInfo/data/sunos-Fortran-SunPro-8.8.0.output b/Tests/RunCMake/ParseImplicitIncludeInfo/data/sunos-Fortran-SunPro-8.8.0.output
new file mode 100644
index 0000000..3c31e16
--- /dev/null
+++ b/Tests/RunCMake/ParseImplicitIncludeInfo/data/sunos-Fortran-SunPro-8.8.0.output
@@ -0,0 +1 @@
+/opt/developerstudio12.6/lib/compilers/include/f95