path: root/dev-util/cmake/files/cmake-3.7.2-x32.patch

Backports from 3.9

Gentoo-bug: 426936

From 503f25d490e56dfc1d3dc894e1fc1bd3e7e89e81 Mon Sep 17 00:00:00 2001
From: Christian Schmidbauer <ch.schmidbauer@gmail.com>
Date: Sat, 25 Feb 2017 19:47:49 +0100
Subject: [PATCH] find_library: Allow custom lib suffix be used as find path

Add a new `CMAKE_FIND_LIBRARY_CUSTOM_LIB_SUFFIX` variable to allow use
of a custom suffix on `lib` directory names.  This is a more general
option than that added by commit v3.7.0-rc1~504^2 (Teach find_library
and find_package to search lib32 paths, 2016-06-10).  It allows the find
path to be more deterministic on custom setups.

See discussion in #10287 and #15994.
---
 Help/command/find_library.rst                      |  7 ++++++
 Help/manual/cmake-variables.7.rst                  |  1 +
 Help/prop_gbl/FIND_LIBRARY_USE_LIB32_PATHS.rst     |  2 ++
 Help/prop_gbl/FIND_LIBRARY_USE_LIB64_PATHS.rst     |  2 ++
 .../release/dev/find_library-custom-lib-suffix.rst |  6 +++++
 .../CMAKE_FIND_LIBRARY_CUSTOM_LIB_SUFFIX.rst       | 11 +++++++++
 Source/cmFindLibraryCommand.cxx                    | 28 ++++++++++++----------
 Tests/CMakeOnly/find_library/CMakeLists.txt        | 15 +++++++++++-
 .../CMakeOnly/find_library/lib/A/libXYZ/libtest2.a |  0
 Tests/CMakeOnly/find_library/lib/XYZ/libtest1.a    |  0
 .../CMakeOnly/find_library/libXYZ/A/lib/libtest4.a |  0
 .../find_library/libXYZ/A/libXYZ/libtest5.a        |  0
 Tests/CMakeOnly/find_library/libXYZ/A/libtest6.a   |  0
 Tests/CMakeOnly/find_library/libXYZ/libtest7.a     |  0
 14 files changed, 58 insertions(+), 14 deletions(-)
 create mode 100644 Help/release/dev/find_library-custom-lib-suffix.rst
 create mode 100644 Help/variable/CMAKE_FIND_LIBRARY_CUSTOM_LIB_SUFFIX.rst
 create mode 100644 Tests/CMakeOnly/find_library/lib/A/libXYZ/libtest2.a
 create mode 100644 Tests/CMakeOnly/find_library/lib/XYZ/libtest1.a
 create mode 100644 Tests/CMakeOnly/find_library/libXYZ/A/lib/libtest4.a
 create mode 100644 Tests/CMakeOnly/find_library/libXYZ/A/libXYZ/libtest5.a
 create mode 100644 Tests/CMakeOnly/find_library/libXYZ/A/libtest6.a
 create mode 100644 Tests/CMakeOnly/find_library/libXYZ/libtest7.a

diff --git a/Help/command/find_library.rst b/Help/command/find_library.rst
index 1eb50f7..e912040 100644
--- a/Help/command/find_library.rst
+++ b/Help/command/find_library.rst
@@ -49,6 +49,13 @@ path to the framework ``<fullPath>/A.framework``.  When a full path to a
 framework is used as a library, CMake will use a ``-framework A``, and a
 ``-F<fullPath>`` to link the framework to the target.
 
+If the :variable:`CMAKE_FIND_LIBRARY_CUSTOM_LIB_SUFFIX` variable is set all
+search paths will be tested as normal, with the suffix appended, and with
+all matches of ``lib/`` replaced with
+``lib${CMAKE_FIND_LIBRARY_CUSTOM_LIB_SUFFIX}/``.  This variable overrides
+the :prop_gbl:`FIND_LIBRARY_USE_LIB32_PATHS`
+and :prop_gbl:`FIND_LIBRARY_USE_LIB64_PATHS` global properties.
+
 If the :prop_gbl:`FIND_LIBRARY_USE_LIB32_PATHS` global property is set
 all search paths will be tested as normal, with ``32/`` appended, and
 with all matches of ``lib/`` replaced with ``lib32/``.  This property is
diff --git a/Help/manual/cmake-variables.7.rst b/Help/manual/cmake-variables.7.rst
index 259d87b..a25efe7 100644
--- a/Help/manual/cmake-variables.7.rst
+++ b/Help/manual/cmake-variables.7.rst
@@ -130,6 +130,7 @@ Variables that Change Behavior
    /variable/CMAKE_SYSROOT
    /variable/CMAKE_FIND_APPBUNDLE
    /variable/CMAKE_FIND_FRAMEWORK
+   /variable/CMAKE_FIND_LIBRARY_CUSTOM_LIB_SUFFIX
    /variable/CMAKE_FIND_LIBRARY_PREFIXES
    /variable/CMAKE_FIND_LIBRARY_SUFFIXES
    /variable/CMAKE_FIND_NO_INSTALL_PREFIX
diff --git a/Help/prop_gbl/FIND_LIBRARY_USE_LIB32_PATHS.rst b/Help/prop_gbl/FIND_LIBRARY_USE_LIB32_PATHS.rst
index ce18b65..8396026 100644
--- a/Help/prop_gbl/FIND_LIBRARY_USE_LIB32_PATHS.rst
+++ b/Help/prop_gbl/FIND_LIBRARY_USE_LIB32_PATHS.rst
@@ -8,3 +8,5 @@ Whether the :command:`find_library` command should automatically search
 :command:`find_library` command should automatically search the ``lib32``
 variant of directories called ``lib`` in the search path when building 32-bit
 binaries.
+
+See also the :variable:`CMAKE_FIND_LIBRARY_CUSTOM_LIB_SUFFIX` variable.
diff --git a/Help/prop_gbl/FIND_LIBRARY_USE_LIB64_PATHS.rst b/Help/prop_gbl/FIND_LIBRARY_USE_LIB64_PATHS.rst
index e52f8eb..ed343ba 100644
--- a/Help/prop_gbl/FIND_LIBRARY_USE_LIB64_PATHS.rst
+++ b/Help/prop_gbl/FIND_LIBRARY_USE_LIB64_PATHS.rst
@@ -8,3 +8,5 @@ FIND_LIBRARY_USE_LIB64_PATHS is a boolean specifying whether the
 :command:`find_library` command should automatically search the lib64
 variant of directories called lib in the search path when building
 64-bit binaries.
+
+See also the :variable:`CMAKE_FIND_LIBRARY_CUSTOM_LIB_SUFFIX` variable.
diff --git a/Help/release/dev/find_library-custom-lib-suffix.rst b/Help/release/dev/find_library-custom-lib-suffix.rst
new file mode 100644
index 0000000..824b27e
--- /dev/null
+++ b/Help/release/dev/find_library-custom-lib-suffix.rst
@@ -0,0 +1,6 @@
+find_library-custom-lib-suffix
+------------------------------
+
+* A :variable:`CMAKE_FIND_LIBRARY_CUSTOM_LIB_SUFFIX` variable was added to
+  tell the :command:`find_library` command to search in a ``lib<suffix>``
+  directory before each ``lib`` directory that would normally be searched.
diff --git a/Help/variable/CMAKE_FIND_LIBRARY_CUSTOM_LIB_SUFFIX.rst b/Help/variable/CMAKE_FIND_LIBRARY_CUSTOM_LIB_SUFFIX.rst
new file mode 100644
index 0000000..f7c6524
--- /dev/null
+++ b/Help/variable/CMAKE_FIND_LIBRARY_CUSTOM_LIB_SUFFIX.rst
@@ -0,0 +1,11 @@
+CMAKE_FIND_LIBRARY_CUSTOM_LIB_SUFFIX
+------------------------------------
+
+Specify a ``<suffix>`` to tell the :command:`find_library` command to
+search in a ``lib<suffix>`` directory before each ``lib`` directory that
+would normally be searched.
+
+This overrides the behavior of related global properties:
+
+* :prop_gbl:`FIND_LIBRARY_USE_LIB32_PATHS`
+* :prop_gbl:`FIND_LIBRARY_USE_LIB64_PATHS`
diff --git a/Source/cmFindLibraryCommand.cxx b/Source/cmFindLibraryCommand.cxx
index 2feedf3..c506d66 100644
--- a/Source/cmFindLibraryCommand.cxx
+++ b/Source/cmFindLibraryCommand.cxx
@@ -43,20 +43,22 @@ bool cmFindLibraryCommand::InitialPass(std::vector<std::string> const& argsIn,
     return true;
   }
 
-  if (this->Makefile->GetState()->GetGlobalPropertyAsBool(
-        "FIND_LIBRARY_USE_LIB32_PATHS")) {
-    // add special 32 bit paths if this is a 32 bit compile.
-    if (this->Makefile->PlatformIs32Bit()) {
-      this->AddArchitecturePaths("32");
-    }
+  // add custom lib<qual> paths instead of using fixed lib32 or lib64
+  if (const char* customLib = this->Makefile->GetDefinition(
+        "CMAKE_FIND_LIBRARY_CUSTOM_LIB_SUFFIX")) {
+    this->AddArchitecturePaths(customLib);
   }
-
-  if (this->Makefile->GetState()->GetGlobalPropertyAsBool(
-        "FIND_LIBRARY_USE_LIB64_PATHS")) {
-    // add special 64 bit paths if this is a 64 bit compile.
-    if (this->Makefile->PlatformIs64Bit()) {
-      this->AddArchitecturePaths("64");
-    }
+  // add special 32 bit paths if this is a 32 bit compile.
+  else if (this->Makefile->PlatformIs32Bit() &&
+           this->Makefile->GetState()->GetGlobalPropertyAsBool(
+             "FIND_LIBRARY_USE_LIB32_PATHS")) {
+    this->AddArchitecturePaths("32");
+  }
+  // add special 64 bit paths if this is a 64 bit compile.
+  else if (this->Makefile->PlatformIs64Bit() &&
+           this->Makefile->GetState()->GetGlobalPropertyAsBool(
+             "FIND_LIBRARY_USE_LIB64_PATHS")) {
+    this->AddArchitecturePaths("64");
   }
 
   std::string library = this->FindLibrary();
diff --git a/Tests/CMakeOnly/find_library/CMakeLists.txt b/Tests/CMakeOnly/find_library/CMakeLists.txt
index 9958650..9c1aad8 100644
--- a/Tests/CMakeOnly/find_library/CMakeLists.txt
+++ b/Tests/CMakeOnly/find_library/CMakeLists.txt
@@ -24,7 +24,7 @@ endmacro()
 macro(test_find_library_subst expected)
   get_filename_component(dir ${expected} PATH)
   get_filename_component(name ${expected} NAME)
-  string(REGEX REPLACE "lib/?64" "lib" dir "${dir}")
+  string(REGEX REPLACE "lib/?[36X][24Y][Z]*" "lib" dir "${dir}")
   test_find_library(", searched as ${dir}" "${expected}"
     NAMES ${name}
     PATHS ${CMAKE_CURRENT_SOURCE_DIR}/${dir}
@@ -79,3 +79,16 @@ test_find_library("" A/libtestA.a
   NAMES testB testA NAMES_PER_DIR
   PATHS ${CMAKE_CURRENT_SOURCE_DIR}/A ${CMAKE_CURRENT_SOURCE_DIR}/B
   )
+
+set(CMAKE_FIND_LIBRARY_CUSTOM_LIB_SUFFIX "XYZ")
+foreach(libXYZ
+    lib/XYZ/libtest1.a
+    lib/A/libXYZ/libtest2.a
+    lib/libtest3.a
+    libXYZ/A/lib/libtest4.a
+    libXYZ/A/libXYZ/libtest5.a
+    libXYZ/A/libtest6.a
+    libXYZ/libtest7.a
+    )
+  test_find_library_subst(${libXYZ})
+endforeach()
diff --git a/Tests/CMakeOnly/find_library/lib/A/libXYZ/libtest2.a b/Tests/CMakeOnly/find_library/lib/A/libXYZ/libtest2.a
new file mode 100644
index 0000000..e69de29
diff --git a/Tests/CMakeOnly/find_library/lib/XYZ/libtest1.a b/Tests/CMakeOnly/find_library/lib/XYZ/libtest1.a
new file mode 100644
index 0000000..e69de29
diff --git a/Tests/CMakeOnly/find_library/libXYZ/A/lib/libtest4.a b/Tests/CMakeOnly/find_library/libXYZ/A/lib/libtest4.a
new file mode 100644
index 0000000..e69de29
diff --git a/Tests/CMakeOnly/find_library/libXYZ/A/libXYZ/libtest5.a b/Tests/CMakeOnly/find_library/libXYZ/A/libXYZ/libtest5.a
new file mode 100644
index 0000000..e69de29
diff --git a/Tests/CMakeOnly/find_library/libXYZ/A/libtest6.a b/Tests/CMakeOnly/find_library/libXYZ/A/libtest6.a
new file mode 100644
index 0000000..e69de29
diff --git a/Tests/CMakeOnly/find_library/libXYZ/libtest7.a b/Tests/CMakeOnly/find_library/libXYZ/libtest7.a
new file mode 100644
index 0000000..e69de29
-- 
2.10.2

From 462cf254270fbd56bffc73b00dc28882fdb0bdd6 Mon Sep 17 00:00:00 2001
From: Steven Newbury <steve@snewbury.org.uk>
Date: Mon, 27 Feb 2017 21:06:51 +0000
Subject: [PATCH 1/4] Add support for x32-abi

Detect x32-abi through CMakeCompilerABI infrastruture and use this
information at runtime to determine the correct library paths with
`FIND_LIBRARY_USE_LIBX32_PATHS`.

Fixes: #15994
---
 Help/command/find_library.rst                          | 10 +++++++++-
 Help/manual/cmake-properties.7.rst                     |  1 +
 Help/prop_gbl/FIND_LIBRARY_USE_LIBX32_PATHS.rst        | 12 ++++++++++++
 Help/variable/CMAKE_FIND_LIBRARY_CUSTOM_LIB_SUFFIX.rst |  1 +
 Modules/CMakeCompilerABI.h                             |  4 ++++
 Modules/FindPkgConfig.cmake                            |  4 ++++
 Modules/Platform/UnixPaths.cmake                       |  1 +
 Source/cmExportInstallFileGenerator.cxx                |  4 +++-
 Source/cmFindLibraryCommand.cxx                        |  9 ++++++++-
 Source/cmFindPackageCommand.cxx                        | 11 +++++++++++
 Source/cmFindPackageCommand.h                          |  1 +
 Source/cmMakefile.cxx                                  | 17 +++++++++++++++++
 Source/cmMakefile.h                                    |  2 ++
 13 files changed, 74 insertions(+), 3 deletions(-)
 create mode 100644 Help/prop_gbl/FIND_LIBRARY_USE_LIBX32_PATHS.rst

diff --git a/Help/command/find_library.rst b/Help/command/find_library.rst
index e912040..f774f17 100644
--- a/Help/command/find_library.rst
+++ b/Help/command/find_library.rst
@@ -53,7 +53,8 @@ If the :variable:`CMAKE_FIND_LIBRARY_CUSTOM_LIB_SUFFIX` variable is set all
 search paths will be tested as normal, with the suffix appended, and with
 all matches of ``lib/`` replaced with
 ``lib${CMAKE_FIND_LIBRARY_CUSTOM_LIB_SUFFIX}/``.  This variable overrides
-the :prop_gbl:`FIND_LIBRARY_USE_LIB32_PATHS`
+the :prop_gbl:`FIND_LIBRARY_USE_LIB32_PATHS`,
+:prop_gbl:`FIND_LIBRARY_USE_LIBX32_PATHS`,
 and :prop_gbl:`FIND_LIBRARY_USE_LIB64_PATHS` global properties.
 
 If the :prop_gbl:`FIND_LIBRARY_USE_LIB32_PATHS` global property is set
@@ -63,6 +64,13 @@ automatically set for the platforms that are known to need it if at
 least one of the languages supported by the :command:`project` command
 is enabled.
 
+If the :prop_gbl:`FIND_LIBRARY_USE_LIBX32_PATHS` global property is set
+all search paths will be tested as normal, with ``x32/`` appended, and
+with all matches of ``lib/`` replaced with ``libx32/``.  This property is
+automatically set for the platforms that are known to need it if at
+least one of the languages supported by the :command:`project` command
+is enabled.
+
 If the :prop_gbl:`FIND_LIBRARY_USE_LIB64_PATHS` global property is set
 all search paths will be tested as normal, with ``64/`` appended, and
 with all matches of ``lib/`` replaced with ``lib64/``.  This property is
diff --git a/Help/manual/cmake-properties.7.rst b/Help/manual/cmake-properties.7.rst
index 5bd6365..2157ba5 100644
--- a/Help/manual/cmake-properties.7.rst
+++ b/Help/manual/cmake-properties.7.rst
@@ -26,6 +26,7 @@ Properties of Global Scope
    /prop_gbl/ENABLED_LANGUAGES
    /prop_gbl/FIND_LIBRARY_USE_LIB32_PATHS
    /prop_gbl/FIND_LIBRARY_USE_LIB64_PATHS
+   /prop_gbl/FIND_LIBRARY_USE_LIBX32_PATHS
    /prop_gbl/FIND_LIBRARY_USE_OPENBSD_VERSIONING
    /prop_gbl/GLOBAL_DEPENDS_DEBUG_MODE
    /prop_gbl/GLOBAL_DEPENDS_NO_CYCLES
diff --git a/Help/prop_gbl/FIND_LIBRARY_USE_LIBX32_PATHS.rst b/Help/prop_gbl/FIND_LIBRARY_USE_LIBX32_PATHS.rst
new file mode 100644
index 0000000..b87b09b
--- /dev/null
+++ b/Help/prop_gbl/FIND_LIBRARY_USE_LIBX32_PATHS.rst
@@ -0,0 +1,12 @@
+FIND_LIBRARY_USE_LIBX32_PATHS
+-----------------------------
+
+Whether the :command:`find_library` command should automatically search
+``libx32`` directories.
+
+``FIND_LIBRARY_USE_LIBX32_PATHS`` is a boolean specifying whether the
+:command:`find_library` command should automatically search the ``libx32``
+variant of directories called ``lib`` in the search path when building
+x32-abi binaries.
+
+See also the :variable:`CMAKE_FIND_LIBRARY_CUSTOM_LIB_SUFFIX` variable.
diff --git a/Help/variable/CMAKE_FIND_LIBRARY_CUSTOM_LIB_SUFFIX.rst b/Help/variable/CMAKE_FIND_LIBRARY_CUSTOM_LIB_SUFFIX.rst
index f7c6524..ada8955 100644
--- a/Help/variable/CMAKE_FIND_LIBRARY_CUSTOM_LIB_SUFFIX.rst
+++ b/Help/variable/CMAKE_FIND_LIBRARY_CUSTOM_LIB_SUFFIX.rst
@@ -9,3 +9,4 @@ This overrides the behavior of related global properties:
 
 * :prop_gbl:`FIND_LIBRARY_USE_LIB32_PATHS`
 * :prop_gbl:`FIND_LIBRARY_USE_LIB64_PATHS`
+* :prop_gbl:`FIND_LIBRARY_USE_LIBX32_PATHS`
diff --git a/Modules/CMakeCompilerABI.h b/Modules/CMakeCompilerABI.h
index f2714b4..ad481d6 100644
--- a/Modules/CMakeCompilerABI.h
+++ b/Modules/CMakeCompilerABI.h
@@ -25,6 +25,10 @@ const char info_sizeof_dptr[] = {
 #elif defined(__GNU__) && defined(__ELF__) && defined(__ARMEL__)
 #define ABI_ID "ELF ARM"
 
+#elif defined(__linux__) && defined(__ELF__) && defined(__amd64__) &&         \
+  defined(__ILP32__)
+#define ABI_ID "ELF X32"
+
 #elif defined(__ELF__)
 #define ABI_ID "ELF"
 #endif
diff --git a/Modules/FindPkgConfig.cmake b/Modules/FindPkgConfig.cmake
index a69081f..54572f0 100644
--- a/Modules/FindPkgConfig.cmake
+++ b/Modules/FindPkgConfig.cmake
@@ -312,6 +312,10 @@ macro(_pkg_check_modules_internal _is_required _is_silent _no_cmake_path _no_cma
           if(uselib64 AND CMAKE_SIZEOF_VOID_P EQUAL 8)
             list(APPEND _lib_dirs "lib64/pkgconfig")
           endif()
+          get_property(uselibx32 GLOBAL PROPERTY FIND_LIBRARY_USE_LIBX32_PATHS)
+          if(uselibx32 AND CMAKE_INTERNAL_PLATFORM_ABI STREQUAL "ELF X32")
+            list(APPEND _lib_dirs "libx32/pkgconfig")
+          endif()
         endif()
       endif()
       list(APPEND _lib_dirs "lib/pkgconfig")
diff --git a/Modules/Platform/UnixPaths.cmake b/Modules/Platform/UnixPaths.cmake
index b216d03..c1d2c03 100644
--- a/Modules/Platform/UnixPaths.cmake
+++ b/Modules/Platform/UnixPaths.cmake
@@ -86,3 +86,4 @@ list(APPEND CMAKE_CXX_IMPLICIT_INCLUDE_DIRECTORIES
 # Enable use of lib32 and lib64 search path variants by default.
 set_property(GLOBAL PROPERTY FIND_LIBRARY_USE_LIB32_PATHS TRUE)
 set_property(GLOBAL PROPERTY FIND_LIBRARY_USE_LIB64_PATHS TRUE)
+set_property(GLOBAL PROPERTY FIND_LIBRARY_USE_LIBX32_PATHS TRUE)
diff --git a/Source/cmExportInstallFileGenerator.cxx b/Source/cmExportInstallFileGenerator.cxx
index 64ea3c8..3b76a87 100644
--- a/Source/cmExportInstallFileGenerator.cxx
+++ b/Source/cmExportInstallFileGenerator.cxx
@@ -195,8 +195,10 @@ void cmExportInstallFileGenerator::GenerateImportPrefix(std::ostream& os)
        << " \"${CMAKE_CURRENT_LIST_FILE}\" PATH)\n";
     if (cmHasLiteralPrefix(absDestS.c_str(), "/lib/") ||
         cmHasLiteralPrefix(absDestS.c_str(), "/lib64/") ||
+        cmHasLiteralPrefix(absDestS.c_str(), "/libx32/") ||
         cmHasLiteralPrefix(absDestS.c_str(), "/usr/lib/") ||
-        cmHasLiteralPrefix(absDestS.c_str(), "/usr/lib64/")) {
+        cmHasLiteralPrefix(absDestS.c_str(), "/usr/lib64/") ||
+        cmHasLiteralPrefix(absDestS.c_str(), "/usr/libx32/")) {
       // Handle "/usr move" symlinks created by some Linux distros.
       /* clang-format off */
       os <<
diff --git a/Source/cmFindLibraryCommand.cxx b/Source/cmFindLibraryCommand.cxx
index 69f9078..e92d672 100644
--- a/Source/cmFindLibraryCommand.cxx
+++ b/Source/cmFindLibraryCommand.cxx
@@ -43,7 +43,8 @@ bool cmFindLibraryCommand::InitialPass(std::vector<std::string> const& argsIn,
     return true;
   }
 
-  // add custom lib<qual> paths instead of using fixed lib32 or lib64
+  // add custom lib<qual> paths instead of using fixed lib32, lib64 or
+  // libx32
   if (const char* customLib = this->Makefile->GetDefinition(
         "CMAKE_FIND_LIBRARY_CUSTOM_LIB_SUFFIX")) {
     this->AddArchitecturePaths(customLib);
@@ -60,6 +61,12 @@ bool cmFindLibraryCommand::InitialPass(std::vector<std::string> const& argsIn,
              "FIND_LIBRARY_USE_LIB64_PATHS")) {
     this->AddArchitecturePaths("64");
   }
+  // add special 32 bit paths if this is an x32 compile.
+  else if (this->Makefile->PlatformIsx32() &&
+           this->Makefile->GetState()->GetGlobalPropertyAsBool(
+             "FIND_LIBRARY_USE_LIBX32_PATHS")) {
+    this->AddArchitecturePaths("x32");
+  }
 
   std::string library = this->FindLibrary();
   if (library != "") {
diff --git a/Source/cmFindPackageCommand.cxx b/Source/cmFindPackageCommand.cxx
index 60de74f..4b29837 100644
--- a/Source/cmFindPackageCommand.cxx
+++ b/Source/cmFindPackageCommand.cxx
@@ -92,6 +92,7 @@ cmFindPackageCommand::cmFindPackageCommand()
   this->DebugMode = false;
   this->UseLib32Paths = false;
   this->UseLib64Paths = false;
+  this->UseLibx32Paths = false;
   this->PolicyScope = true;
   this->VersionMajor = 0;
   this->VersionMinor = 0;
@@ -173,6 +174,13 @@ bool cmFindPackageCommand::InitialPass(std::vector<std::string> const& args,
     this->UseLib64Paths = true;
   }
 
+  // Lookup whether libx32 paths should be used.
+  if (this->Makefile->PlatformIsx32() &&
+      this->Makefile->GetState()->GetGlobalPropertyAsBool(
+        "FIND_LIBRARY_USE_LIBX32_PATHS")) {
+    this->UseLibx32Paths = true;
+  }
+
   // Check if User Package Registry should be disabled
   if (this->Makefile->IsOn("CMAKE_FIND_PACKAGE_NO_PACKAGE_REGISTRY")) {
     this->NoUserRegistry = true;
@@ -2002,6 +2010,9 @@ bool cmFindPackageCommand::SearchPrefix(std::string const& prefix_in)
   if (this->UseLib64Paths) {
     common.push_back("lib64");
   }
+  if (this->UseLibx32Paths) {
+    common.push_back("libx32");
+  }
   common.push_back("lib");
   common.push_back("share");
 
diff --git a/Source/cmFindPackageCommand.h b/Source/cmFindPackageCommand.h
index d454892..61a8dd6 100644
--- a/Source/cmFindPackageCommand.h
+++ b/Source/cmFindPackageCommand.h
@@ -169,6 +169,7 @@ private:
   bool DebugMode;
   bool UseLib32Paths;
   bool UseLib64Paths;
+  bool UseLibx32Paths;
   bool PolicyScope;
   std::string LibraryArchitecture;
   std::vector<std::string> Names;
diff --git a/Source/cmMakefile.cxx b/Source/cmMakefile.cxx
index c75d101..da32dd7 100644
--- a/Source/cmMakefile.cxx
+++ b/Source/cmMakefile.cxx
@@ -2149,6 +2149,12 @@ bool cmMakefile::IsSet(const std::string& name) const
 
 bool cmMakefile::PlatformIs32Bit() const
 {
+  if (const char* plat_abi =
+        this->GetDefinition("CMAKE_INTERNAL_PLATFORM_ABI")) {
+    if (strcmp(plat_abi, "ELF X32") == 0) {
+      return false;
+    }
+  }
   if (const char* sizeof_dptr = this->GetDefinition("CMAKE_SIZEOF_VOID_P")) {
     return atoi(sizeof_dptr) == 4;
   }
@@ -2163,6 +2169,17 @@ bool cmMakefile::PlatformIs64Bit() const
   return false;
 }
 
+bool cmMakefile::PlatformIsx32() const
+{
+  if (const char* plat_abi =
+        this->GetDefinition("CMAKE_INTERNAL_PLATFORM_ABI")) {
+    if (strcmp(plat_abi, "ELF X32") == 0) {
+      return true;
+    }
+  }
+  return false;
+}
+
 bool cmMakefile::PlatformIsAppleIos() const
 {
   std::string sdkRoot;
diff --git a/Source/cmMakefile.h b/Source/cmMakefile.h
index 4d5ce98..4e48c88 100644
--- a/Source/cmMakefile.h
+++ b/Source/cmMakefile.h
@@ -436,6 +436,8 @@ public:
 
   /** Return whether the target platform is 64-bit.  */
   bool PlatformIs64Bit() const;
+  /** Return whether the target platform is x32.  */
+  bool PlatformIsx32() const;
 
   /** Return whether the target platform is Apple iOS.  */
   bool PlatformIsAppleIos() const;
-- 
2.10.2


From bed9c73decfcda0366984d990045e588928440ec Mon Sep 17 00:00:00 2001
From: Steven Newbury <steve@snewbury.org.uk>
Date: Mon, 27 Feb 2017 21:17:28 +0000
Subject: [PATCH 2/4] Modules: Add x32-abi support to hard-coded paths

Update hard-coded library paths in bundled CMake Modules for libx32 as
used with x32-abi.
---
 Modules/CPackRPM.cmake         | 2 +-
 Modules/FindDevIL.cmake        | 6 +++---
 Modules/FindGLEW.cmake         | 2 +-
 Modules/FindGTK2.cmake         | 2 ++
 Modules/FindIce.cmake          | 2 +-
 Modules/FindKDE3.cmake         | 2 ++
 Modules/FindOpenAL.cmake       | 2 +-
 Modules/GetPrerequisites.cmake | 2 +-
 8 files changed, 12 insertions(+), 8 deletions(-)

diff --git a/Modules/CPackRPM.cmake b/Modules/CPackRPM.cmake
index 722ee15..b32feb5 100644
--- a/Modules/CPackRPM.cmake
+++ b/Modules/CPackRPM.cmake
@@ -1044,7 +1044,7 @@ function(cpack_rpm_prepare_content_list)
   endif()
 
   if(NOT DEFINED CPACK_RPM_EXCLUDE_FROM_AUTO_FILELIST)
-    set(CPACK_RPM_EXCLUDE_FROM_AUTO_FILELIST /etc /etc/init.d /usr /usr/share /usr/share/doc /usr/bin /usr/lib /usr/lib64 /usr/include)
+    set(CPACK_RPM_EXCLUDE_FROM_AUTO_FILELIST /etc /etc/init.d /usr /usr/share /usr/share/doc /usr/bin /usr/lib /usr/lib64 /usr/libx32 /usr/include)
     if(CPACK_RPM_EXCLUDE_FROM_AUTO_FILELIST_ADDITION)
       if(CPACK_RPM_PACKAGE_DEBUG)
         message("CPackRPM:Debug: Adding ${CPACK_RPM_EXCLUDE_FROM_AUTO_FILELIST_ADDITION} to builtin omit list.")
diff --git a/Modules/FindDevIL.cmake b/Modules/FindDevIL.cmake
index 45fab82..4b868a2 100644
--- a/Modules/FindDevIL.cmake
+++ b/Modules/FindDevIL.cmake
@@ -45,7 +45,7 @@ find_path(IL_INCLUDE_DIR il.h
 
 find_library(IL_LIBRARIES
   NAMES IL DEVIL
-  PATH_SUFFIXES lib64 lib lib32
+  PATH_SUFFIXES libx32 lib64 lib lib32
   DOC "The file that corresponds to the base il library."
 )
 
@@ -53,7 +53,7 @@ find_library(IL_LIBRARIES
 
 find_library(ILUT_LIBRARIES
   NAMES ILUT
-  PATH_SUFFIXES lib64 lib lib32
+  PATH_SUFFIXES libx32 lib64 lib lib32
   DOC "The file that corresponds to the il (system?) utility library."
 )
 
@@ -61,7 +61,7 @@ find_library(ILUT_LIBRARIES
 
 find_library(ILU_LIBRARIES
   NAMES ILU
-  PATH_SUFFIXES lib64 lib lib32
+  PATH_SUFFIXES libx32 lib64 lib lib32
   DOC "The file that corresponds to the il utility library."
 )
 
diff --git a/Modules/FindGLEW.cmake b/Modules/FindGLEW.cmake
index d8609e6..11e8724 100644
--- a/Modules/FindGLEW.cmake
+++ b/Modules/FindGLEW.cmake
@@ -27,7 +27,7 @@
 find_path(GLEW_INCLUDE_DIR GL/glew.h)
 
 if(NOT GLEW_LIBRARY)
-  find_library(GLEW_LIBRARY_RELEASE NAMES GLEW glew32 glew glew32s PATH_SUFFIXES lib64)
+  find_library(GLEW_LIBRARY_RELEASE NAMES GLEW glew32 glew glew32s PATH_SUFFIXES lib64 libx32)
   find_library(GLEW_LIBRARY_DEBUG NAMES GLEWd glew32d glewd PATH_SUFFIXES lib64)
 
   include(${CMAKE_CURRENT_LIST_DIR}/SelectLibraryConfigurations.cmake)
diff --git a/Modules/FindGTK2.cmake b/Modules/FindGTK2.cmake
index 20d7924..2eca5f9 100644
--- a/Modules/FindGTK2.cmake
+++ b/Modules/FindGTK2.cmake
@@ -292,8 +292,10 @@ function(_GTK2_FIND_INCLUDE_DIR _var _hdr)
     find_path(GTK2_${_var}_INCLUDE_DIR ${_hdr}
         PATHS
             ${_gtk2_arch_dir}
+            /usr/local/libx32
             /usr/local/lib64
             /usr/local/lib
+            /usr/libx32
             /usr/lib64
             /usr/lib
             /usr/X11R6/include
diff --git a/Modules/FindIce.cmake b/Modules/FindIce.cmake
index a61d4a8..e0286ee 100644
--- a/Modules/FindIce.cmake
+++ b/Modules/FindIce.cmake
@@ -198,7 +198,7 @@ function(_Ice_FIND)
   endif()
   # Generic 64-bit and 32-bit directories
   list(APPEND ice_binary_suffixes "bin${_x64}" "bin")
-  list(APPEND ice_library_suffixes "${_lib64}" "lib${_x64}" "lib")
+  list(APPEND ice_library_suffixes "libx32" "${_lib64}" "lib${_x64}" "lib")
   list(APPEND ice_include_suffixes "include")
   list(APPEND ice_slice_suffixes "slice")
 
diff --git a/Modules/FindKDE3.cmake b/Modules/FindKDE3.cmake
index 62e2a50..03216a5 100644
--- a/Modules/FindKDE3.cmake
+++ b/Modules/FindKDE3.cmake
@@ -221,6 +221,8 @@ get_filename_component(KDE3_LIB_DIR ${KDE3_KDECORE_LIBRARY} PATH )
 if(NOT KDE3_LIBTOOL_DIR)
    if(KDE3_KDECORE_LIBRARY MATCHES lib64)
      set(KDE3_LIBTOOL_DIR /lib64/kde3)
+   elseif(KDE3_KDECORE_LIBRARY MATCHES libx32)
+     set(KDE3_LIBTOOL_DIR /libx32/kde3)
    else()
      set(KDE3_LIBTOOL_DIR /lib/kde3)
    endif()
diff --git a/Modules/FindOpenAL.cmake b/Modules/FindOpenAL.cmake
index 8622b4c..c3d202e 100644
--- a/Modules/FindOpenAL.cmake
+++ b/Modules/FindOpenAL.cmake
@@ -79,7 +79,7 @@ find_library(OPENAL_LIBRARY
   NAMES OpenAL al openal OpenAL32
   HINTS
     ENV OPENALDIR
-  PATH_SUFFIXES lib64 lib libs64 libs ${_OpenAL_ARCH_DIR}
+  PATH_SUFFIXES libx32 lib64 lib libs64 libs ${_OpenAL_ARCH_DIR}
   PATHS
   ~/Library/Frameworks
   /Library/Frameworks
diff --git a/Modules/GetPrerequisites.cmake b/Modules/GetPrerequisites.cmake
index 417af7c..a3b97ab 100644
--- a/Modules/GetPrerequisites.cmake
+++ b/Modules/GetPrerequisites.cmake
@@ -521,7 +521,7 @@ function(gp_resolved_file_type original_file file exepath dirs type_var)
     string(TOLOWER "${resolved_file}" lower)
 
     if(UNIX)
-      if(resolved_file MATCHES "^(/lib/|/lib32/|/lib64/|/usr/lib/|/usr/lib32/|/usr/lib64/|/usr/X11R6/|/usr/bin/)")
+      if(resolved_file MATCHES "^(/lib/|/lib32/|/libx32/|/lib64/|/usr/lib/|/usr/lib32/|/usr/libx32/|/usr/lib64/|/usr/X11R6/|/usr/bin/)")
         set(is_system 1)
       endif()
     endif()
-- 
2.10.2


From 5b6d354f70e1faddb006a7c98479f5d655a07b87 Mon Sep 17 00:00:00 2001
From: Brad King <brad.king@kitware.com>
Date: Mon, 6 Mar 2017 11:15:00 -0500
Subject: [PATCH 3/4] Help: Add notes for topic 'x32-abi'

---
 Help/release/dev/x32-abi.rst | 6 ++++++
 1 file changed, 6 insertions(+)
 create mode 100644 Help/release/dev/x32-abi.rst

diff --git a/Help/release/dev/x32-abi.rst b/Help/release/dev/x32-abi.rst
new file mode 100644
index 0000000..7571fac
--- /dev/null
+++ b/Help/release/dev/x32-abi.rst
@@ -0,0 +1,6 @@
+x32-abi
+-------
+
+* The :command:`find_library` command learned to search ``libx32`` paths
+  when the build targets the ``x32`` ABI.  See the
+  :prop_gbl:`FIND_LIBRARY_USE_LIBX32_PATHS` global property.
-- 
2.10.2


From d9bdcf34efa79dcdea4ded8e90b80a55db69fbf6 Mon Sep 17 00:00:00 2001
From: Steven Newbury <steve@snewbury.org.uk>
Date: Wed, 8 Mar 2017 17:13:29 +0000
Subject: [PATCH 4/4] Tests: Add x32 tests to test suite

---
 Tests/CMakeOnly/find_library/CMakeLists.txt              | 16 ++++++++++++++++
 Tests/CMakeOnly/find_library/lib/A/libx32/libtest3.a     |  0
 Tests/CMakeOnly/find_library/lib/x32/libtest2.a          |  0
 Tests/CMakeOnly/find_library/libx32/A/lib/libtest2.a     |  0
 Tests/CMakeOnly/find_library/libx32/A/libtest1.a         |  0
 Tests/CMakeOnly/find_library/libx32/A/libx32/libtest1.a  |  0
 Tests/CMakeOnly/find_library/libx32/libtest1.a           |  0
 .../FindPkgConfig_CMAKE_APPBUNDLE_PATH.cmake             |  5 ++++-
 .../FindPkgConfig_CMAKE_FRAMEWORK_PATH.cmake             |  5 ++++-
 .../FindPkgConfig/FindPkgConfig_PKGCONFIG_PATH.cmake     |  5 ++++-
 ...Config_PKGCONFIG_PATH_NO_CMAKE_ENVIRONMENT_PATH.cmake |  5 ++++-
 .../FindPkgConfig_PKGCONFIG_PATH_NO_CMAKE_PATH.cmake     |  5 ++++-
 .../FindPkgConfig/pc-bar/libx32/pkgconfig/.placeholder   |  0
 .../FindPkgConfig/pc-foo/libx32/pkgconfig/.placeholder   |  0
 14 files changed, 36 insertions(+), 5 deletions(-)
 create mode 100644 Tests/CMakeOnly/find_library/lib/A/libx32/libtest3.a
 create mode 100644 Tests/CMakeOnly/find_library/lib/x32/libtest2.a
 create mode 100644 Tests/CMakeOnly/find_library/libx32/A/lib/libtest2.a
 create mode 100644 Tests/CMakeOnly/find_library/libx32/A/libtest1.a
 create mode 100644 Tests/CMakeOnly/find_library/libx32/A/libx32/libtest1.a
 create mode 100644 Tests/CMakeOnly/find_library/libx32/libtest1.a
 create mode 100644 Tests/RunCMake/FindPkgConfig/pc-bar/libx32/pkgconfig/.placeholder
 create mode 100644 Tests/RunCMake/FindPkgConfig/pc-foo/libx32/pkgconfig/.placeholder

diff --git a/Tests/CMakeOnly/find_library/CMakeLists.txt b/Tests/CMakeOnly/find_library/CMakeLists.txt
index 9c1aad8..749cf42 100644
--- a/Tests/CMakeOnly/find_library/CMakeLists.txt
+++ b/Tests/CMakeOnly/find_library/CMakeLists.txt
@@ -33,9 +33,11 @@ endmacro()
 
 set(CMAKE_FIND_LIBRARY_PREFIXES "lib")
 set(CMAKE_FIND_LIBRARY_SUFFIXES ".a")
+set_property(GLOBAL PROPERTY FIND_LIBRARY_USE_LIBX32_PATHS TRUE)
 set_property(GLOBAL PROPERTY FIND_LIBRARY_USE_LIB32_PATHS TRUE)
 set_property(GLOBAL PROPERTY FIND_LIBRARY_USE_LIB64_PATHS TRUE)
 
+set(CMAKE_INTERNAL_PLATFORM_ABI "ELF")
 set(CMAKE_SIZEOF_VOID_P 4)
 foreach(lib
     lib/32/libtest5.a
@@ -67,6 +69,20 @@ foreach(lib64
   test_find_library_subst(${lib64})
 endforeach()
 
+set(CMAKE_INTERNAL_PLATFORM_ABI "ELF X32")
+set(CMAKE_SIZEOF_VOID_P 4)
+foreach(libx32
+    lib/x32/libtest2.a
+    lib/A/libx32/libtest3.a
+    lib/libtest3.a
+    libx32/A/lib/libtest2.a
+    libx32/A/libx32/libtest1.a
+    libx32/A/libtest1.a
+    libx32/libtest1.a
+    )
+  test_find_library_subst(${libx32})
+endforeach()
+
 test_find_library("" A/libtestA.a
   NAMES testA testB
   PATHS ${CMAKE_CURRENT_SOURCE_DIR}/A ${CMAKE_CURRENT_SOURCE_DIR}/B
diff --git a/Tests/CMakeOnly/find_library/lib/A/libx32/libtest3.a b/Tests/CMakeOnly/find_library/lib/A/libx32/libtest3.a
new file mode 100644
index 0000000..e69de29
diff --git a/Tests/CMakeOnly/find_library/lib/x32/libtest2.a b/Tests/CMakeOnly/find_library/lib/x32/libtest2.a
new file mode 100644
index 0000000..e69de29
diff --git a/Tests/CMakeOnly/find_library/libx32/A/lib/libtest2.a b/Tests/CMakeOnly/find_library/libx32/A/lib/libtest2.a
new file mode 100644
index 0000000..e69de29
diff --git a/Tests/CMakeOnly/find_library/libx32/A/libtest1.a b/Tests/CMakeOnly/find_library/libx32/A/libtest1.a
new file mode 100644
index 0000000..e69de29
diff --git a/Tests/CMakeOnly/find_library/libx32/A/libx32/libtest1.a b/Tests/CMakeOnly/find_library/libx32/A/libx32/libtest1.a
new file mode 100644
index 0000000..e69de29
diff --git a/Tests/CMakeOnly/find_library/libx32/libtest1.a b/Tests/CMakeOnly/find_library/libx32/libtest1.a
new file mode 100644
index 0000000..e69de29
diff --git a/Tests/RunCMake/FindPkgConfig/FindPkgConfig_CMAKE_APPBUNDLE_PATH.cmake b/Tests/RunCMake/FindPkgConfig/FindPkgConfig_CMAKE_APPBUNDLE_PATH.cmake
index 4a41533..2687efe 100644
--- a/Tests/RunCMake/FindPkgConfig/FindPkgConfig_CMAKE_APPBUNDLE_PATH.cmake
+++ b/Tests/RunCMake/FindPkgConfig/FindPkgConfig_CMAKE_APPBUNDLE_PATH.cmake
@@ -30,9 +30,12 @@ if(NOT DEFINED CMAKE_SYSTEM_NAME
     endif()
   else()
     # not debian, check the FIND_LIBRARY_USE_LIB32_PATHS and FIND_LIBRARY_USE_LIB64_PATHS properties
+    get_property(uselibx32 GLOBAL PROPERTY FIND_LIBRARY_USE_LIBX32_PATHS)
     get_property(uselib32 GLOBAL PROPERTY FIND_LIBRARY_USE_LIB32_PATHS)
     get_property(uselib64 GLOBAL PROPERTY FIND_LIBRARY_USE_LIB64_PATHS)
-    if(uselib32 AND CMAKE_SIZEOF_VOID_P EQUAL 4)
+    if(uselibx32 AND CMAKE_INTERNAL_PLATFORM_ABI STREQUAL "ELF X32")
+      set(expected_path "/baz:${CMAKE_CURRENT_SOURCE_DIR}/pc-foo/libx32/pkgconfig:${CMAKE_CURRENT_SOURCE_DIR}/pc-foo/lib/pkgconfig:${CMAKE_CURRENT_SOURCE_DIR}/pc-bar/libx32/pkgconfig:${CMAKE_CURRENT_SOURCE_DIR}/pc-bar/lib/pkgconfig")
+    elseif(uselib32 AND CMAKE_SIZEOF_VOID_P EQUAL 4)
       set(expected_path "/baz:${CMAKE_CURRENT_SOURCE_DIR}/pc-foo/lib32/pkgconfig:${CMAKE_CURRENT_SOURCE_DIR}/pc-foo/lib/pkgconfig:${CMAKE_CURRENT_SOURCE_DIR}/pc-bar/lib32/pkgconfig:${CMAKE_CURRENT_SOURCE_DIR}/pc-bar/lib/pkgconfig")
     elseif(uselib64 AND CMAKE_SIZEOF_VOID_P EQUAL 8)
       set(expected_path "/baz:${CMAKE_CURRENT_SOURCE_DIR}/pc-foo/lib64/pkgconfig:${CMAKE_CURRENT_SOURCE_DIR}/pc-foo/lib/pkgconfig:${CMAKE_CURRENT_SOURCE_DIR}/pc-bar/lib64/pkgconfig:${CMAKE_CURRENT_SOURCE_DIR}/pc-bar/lib/pkgconfig")
diff --git a/Tests/RunCMake/FindPkgConfig/FindPkgConfig_CMAKE_FRAMEWORK_PATH.cmake b/Tests/RunCMake/FindPkgConfig/FindPkgConfig_CMAKE_FRAMEWORK_PATH.cmake
index b66d02f..74cda25 100644
--- a/Tests/RunCMake/FindPkgConfig/FindPkgConfig_CMAKE_FRAMEWORK_PATH.cmake
+++ b/Tests/RunCMake/FindPkgConfig/FindPkgConfig_CMAKE_FRAMEWORK_PATH.cmake
@@ -30,9 +30,12 @@ if(NOT DEFINED CMAKE_SYSTEM_NAME
     endif()
   else()
     # not debian, check the FIND_LIBRARY_USE_LIB64_PATHS and FIND_LIBRARY_USE_LIB64_PATHS properties
+    get_property(uselibx32 GLOBAL PROPERTY FIND_LIBRARY_USE_LIBX32_PATHS)
     get_property(uselib32 GLOBAL PROPERTY FIND_LIBRARY_USE_LIB32_PATHS)
     get_property(uselib64 GLOBAL PROPERTY FIND_LIBRARY_USE_LIB64_PATHS)
-    if(uselib32 AND CMAKE_SIZEOF_VOID_P EQUAL 4)
+    if(uselibx32 AND CMAKE_INTERNAL_PLATFORM_ABI STREQUAL "ELF X32")
+      set(expected_path "/baz:${CMAKE_CURRENT_SOURCE_DIR}/pc-foo/libx32/pkgconfig:${CMAKE_CURRENT_SOURCE_DIR}/pc-foo/lib/pkgconfig:${CMAKE_CURRENT_SOURCE_DIR}/pc-bar/libx32/pkgconfig:${CMAKE_CURRENT_SOURCE_DIR}/pc-bar/lib/pkgconfig")
+    elseif(uselib32 AND CMAKE_SIZEOF_VOID_P EQUAL 4)
       set(expected_path "/baz:${CMAKE_CURRENT_SOURCE_DIR}/pc-foo/lib32/pkgconfig:${CMAKE_CURRENT_SOURCE_DIR}/pc-foo/lib/pkgconfig:${CMAKE_CURRENT_SOURCE_DIR}/pc-bar/lib32/pkgconfig:${CMAKE_CURRENT_SOURCE_DIR}/pc-bar/lib/pkgconfig")
     elseif(uselib64 AND CMAKE_SIZEOF_VOID_P EQUAL 8)
       set(expected_path "/baz:${CMAKE_CURRENT_SOURCE_DIR}/pc-foo/lib64/pkgconfig:${CMAKE_CURRENT_SOURCE_DIR}/pc-foo/lib/pkgconfig:${CMAKE_CURRENT_SOURCE_DIR}/pc-bar/lib64/pkgconfig:${CMAKE_CURRENT_SOURCE_DIR}/pc-bar/lib/pkgconfig")
diff --git a/Tests/RunCMake/FindPkgConfig/FindPkgConfig_PKGCONFIG_PATH.cmake b/Tests/RunCMake/FindPkgConfig/FindPkgConfig_PKGCONFIG_PATH.cmake
index bdecb8a..1defde8 100644
--- a/Tests/RunCMake/FindPkgConfig/FindPkgConfig_PKGCONFIG_PATH.cmake
+++ b/Tests/RunCMake/FindPkgConfig/FindPkgConfig_PKGCONFIG_PATH.cmake
@@ -30,9 +30,12 @@ if(NOT DEFINED CMAKE_SYSTEM_NAME
     endif()
   else()
     # not debian, check the FIND_LIBRARY_USE_LIB32_PATHS and FIND_LIBRARY_USE_LIB64_PATHS propertie
+    get_property(uselibx32 GLOBAL PROPERTY FIND_LIBRARY_USE_LIBX32_PATHS)
     get_property(uselib32 GLOBAL PROPERTY FIND_LIBRARY_USE_LIB32_PATHS)
     get_property(uselib64 GLOBAL PROPERTY FIND_LIBRARY_USE_LIB64_PATHS)
-    if(uselib32 AND CMAKE_SIZEOF_VOID_P EQUAL 4)
+    if(uselibx32 AND CMAKE_INTERNAL_PLATFORM_ABI STREQUAL "ELF X32")
+      set(expected_path "/baz:${CMAKE_CURRENT_SOURCE_DIR}/pc-foo/libx32/pkgconfig:${CMAKE_CURRENT_SOURCE_DIR}/pc-foo/lib/pkgconfig:${CMAKE_CURRENT_SOURCE_DIR}/pc-bar/libx32/pkgconfig:${CMAKE_CURRENT_SOURCE_DIR}/pc-bar/lib/pkgconfig")
+    elseif(uselib32 AND CMAKE_SIZEOF_VOID_P EQUAL 4)
       set(expected_path "/baz:${CMAKE_CURRENT_SOURCE_DIR}/pc-foo/lib32/pkgconfig:${CMAKE_CURRENT_SOURCE_DIR}/pc-foo/lib/pkgconfig:${CMAKE_CURRENT_SOURCE_DIR}/pc-bar/lib32/pkgconfig:${CMAKE_CURRENT_SOURCE_DIR}/pc-bar/lib/pkgconfig")
     elseif(uselib64 AND CMAKE_SIZEOF_VOID_P EQUAL 8)
       set(expected_path "/baz:${CMAKE_CURRENT_SOURCE_DIR}/pc-foo/lib64/pkgconfig:${CMAKE_CURRENT_SOURCE_DIR}/pc-foo/lib/pkgconfig:${CMAKE_CURRENT_SOURCE_DIR}/pc-bar/lib64/pkgconfig:${CMAKE_CURRENT_SOURCE_DIR}/pc-bar/lib/pkgconfig")
diff --git a/Tests/RunCMake/FindPkgConfig/FindPkgConfig_PKGCONFIG_PATH_NO_CMAKE_ENVIRONMENT_PATH.cmake b/Tests/RunCMake/FindPkgConfig/FindPkgConfig_PKGCONFIG_PATH_NO_CMAKE_ENVIRONMENT_PATH.cmake
index df67235..166a617 100644
--- a/Tests/RunCMake/FindPkgConfig/FindPkgConfig_PKGCONFIG_PATH_NO_CMAKE_ENVIRONMENT_PATH.cmake
+++ b/Tests/RunCMake/FindPkgConfig/FindPkgConfig_PKGCONFIG_PATH_NO_CMAKE_ENVIRONMENT_PATH.cmake
@@ -30,9 +30,12 @@ if(NOT DEFINED CMAKE_SYSTEM_NAME
     endif()
   else()
     # not debian, check the FIND_LIBRARY_USE_LIB32_PATHS and FIND_LIBRARY_USE_LIB64_PATHS properties
+    get_property(uselibx32 GLOBAL PROPERTY FIND_LIBRARY_USE_LIBX32_PATHS)
     get_property(uselib32 GLOBAL PROPERTY FIND_LIBRARY_USE_LIB32_PATHS)
     get_property(uselib64 GLOBAL PROPERTY FIND_LIBRARY_USE_LIB64_PATHS)
-    if(uselib32 AND CMAKE_SIZEOF_VOID_P EQUAL 4)
+    if(uselibx32 AND CMAKE_INTERNAL_PLATFORM_ABI STREQUAL "ELF X32")
+      set(expected_path "/baz:${CMAKE_CURRENT_SOURCE_DIR}/pc-foo/libx32/pkgconfig:${CMAKE_CURRENT_SOURCE_DIR}/pc-foo/lib/pkgconfig")
+    elseif(uselib32 AND CMAKE_SIZEOF_VOID_P EQUAL 4)
       set(expected_path "/baz:${CMAKE_CURRENT_SOURCE_DIR}/pc-foo/lib32/pkgconfig:${CMAKE_CURRENT_SOURCE_DIR}/pc-foo/lib/pkgconfig")
     elseif(uselib64 AND CMAKE_SIZEOF_VOID_P EQUAL 8)
       set(expected_path "/baz:${CMAKE_CURRENT_SOURCE_DIR}/pc-foo/lib64/pkgconfig:${CMAKE_CURRENT_SOURCE_DIR}/pc-foo/lib/pkgconfig")
diff --git a/Tests/RunCMake/FindPkgConfig/FindPkgConfig_PKGCONFIG_PATH_NO_CMAKE_PATH.cmake b/Tests/RunCMake/FindPkgConfig/FindPkgConfig_PKGCONFIG_PATH_NO_CMAKE_PATH.cmake
index 1351b6f..e4673b3 100644
--- a/Tests/RunCMake/FindPkgConfig/FindPkgConfig_PKGCONFIG_PATH_NO_CMAKE_PATH.cmake
+++ b/Tests/RunCMake/FindPkgConfig/FindPkgConfig_PKGCONFIG_PATH_NO_CMAKE_PATH.cmake
@@ -30,9 +30,12 @@ if(NOT DEFINED CMAKE_SYSTEM_NAME
     endif()
   else()
     # not debian, check the FIND_LIBRARY_USE_LIB64_PATHS and FIND_LIBRARY_USE_LIB32_PATHS properties
+    get_property(uselibx32 GLOBAL PROPERTY FIND_LIBRARY_USE_LIBX32_PATHS)
     get_property(uselib32 GLOBAL PROPERTY FIND_LIBRARY_USE_LIB32_PATHS)
     get_property(uselib64 GLOBAL PROPERTY FIND_LIBRARY_USE_LIB64_PATHS)
-    if(uselib32 AND CMAKE_SIZEOF_VOID_P EQUAL 4)
+    if(uselibx32 AND CMAKE_INTERNAL_PLATFORM_ABI STREQUAL "ELF X32")
+      set(expected_path "/baz:${CMAKE_CURRENT_SOURCE_DIR}/pc-bar/libx32/pkgconfig:${CMAKE_CURRENT_SOURCE_DIR}/pc-bar/lib/pkgconfig")
+    elseif(uselib32 AND CMAKE_SIZEOF_VOID_P EQUAL 4)
       set(expected_path "/baz:${CMAKE_CURRENT_SOURCE_DIR}/pc-bar/lib32/pkgconfig:${CMAKE_CURRENT_SOURCE_DIR}/pc-bar/lib/pkgconfig")
     elseif(uselib64 AND CMAKE_SIZEOF_VOID_P EQUAL 8)
       set(expected_path "/baz:${CMAKE_CURRENT_SOURCE_DIR}/pc-bar/lib64/pkgconfig:${CMAKE_CURRENT_SOURCE_DIR}/pc-bar/lib/pkgconfig")
diff --git a/Tests/RunCMake/FindPkgConfig/pc-bar/libx32/pkgconfig/.placeholder b/Tests/RunCMake/FindPkgConfig/pc-bar/libx32/pkgconfig/.placeholder
new file mode 100644
index 0000000..e69de29
diff --git a/Tests/RunCMake/FindPkgConfig/pc-foo/libx32/pkgconfig/.placeholder b/Tests/RunCMake/FindPkgConfig/pc-foo/libx32/pkgconfig/.placeholder
new file mode 100644
index 0000000..e69de29
-- 
2.10.2