Android: Add CMAKE_<LANG>_ANDROID_TOOLCHAIN_MACHINE

Expose the binutils' machine name (typically used as a prefix on the
tool names) publicly.  This is expected to match the `gcc -dumpmachine`
value.

Suggested-by: Ruslan Baratov <ruslan_baratov@yahoo.com>

5 files changed, 18 insertions, 2 deletions

diff --git a/Help/manual/cmake-variables.7.rst b/Help/manual/cmake-variables.7.rst
index 57a5c1a..d68265d 100644
--- a/Help/manual/cmake-variables.7.rst
+++ b/Help/manual/cmake-variables.7.rst
@@ -355,6 +355,7 @@ Variables for Languages
    /variable/CMAKE_Fortran_MODDIR_FLAG
    /variable/CMAKE_Fortran_MODOUT_FLAG
    /variable/CMAKE_INTERNAL_PLATFORM_ABI
+   /variable/CMAKE_LANG_ANDROID_TOOLCHAIN_MACHINE
    /variable/CMAKE_LANG_ANDROID_TOOLCHAIN_PREFIX
    /variable/CMAKE_LANG_ANDROID_TOOLCHAIN_SUFFIX
    /variable/CMAKE_LANG_ARCHIVE_APPEND
diff --git a/Help/release/dev/android-info-variables.rst b/Help/release/dev/android-info-variables.rst
index 9330c62..e173342 100644
--- a/Help/release/dev/android-info-variables.rst
+++ b/Help/release/dev/android-info-variables.rst
@@ -1,6 +1,10 @@
 android-info-variables
 ----------------------
 
+* When :ref:`Cross Compiling for Android`, a new
+  :variable:`CMAKE_<LANG>_ANDROID_TOOLCHAIN_MACHINE` variable is
+  now set to indicate the binutils' machine name.
+
 * When :ref:`Cross Compiling for Android with the NDK`, the
   :variable:`CMAKE_ANDROID_NDK_TOOLCHAIN_VERSION` variable is
   now set by CMake if it is not set by the user or toolchain file.
diff --git a/Help/variable/CMAKE_LANG_ANDROID_TOOLCHAIN_MACHINE.rst b/Help/variable/CMAKE_LANG_ANDROID_TOOLCHAIN_MACHINE.rst
new file mode 100644
index 0000000..d336364
--- /dev/null
+++ b/Help/variable/CMAKE_LANG_ANDROID_TOOLCHAIN_MACHINE.rst
@@ -0,0 +1,9 @@
+CMAKE_<LANG>_ANDROID_TOOLCHAIN_MACHINE
+--------------------------------------
+
+When :ref:`Cross Compiling for Android` this variable contains the
+toolchain binutils machine name (e.g. ``gcc -dumpmachine``).  The
+binutils typically have a ``<machine>-`` prefix on their name.
+
+See also :variable:`CMAKE_<LANG>_ANDROID_TOOLCHAIN_PREFIX`
+and :variable:`CMAKE_<LANG>_ANDROID_TOOLCHAIN_SUFFIX`.
diff --git a/Help/variable/CMAKE_LANG_ANDROID_TOOLCHAIN_PREFIX.rst b/Help/variable/CMAKE_LANG_ANDROID_TOOLCHAIN_PREFIX.rst
index b51422f..db04af3 100644
--- a/Help/variable/CMAKE_LANG_ANDROID_TOOLCHAIN_PREFIX.rst
+++ b/Help/variable/CMAKE_LANG_ANDROID_TOOLCHAIN_PREFIX.rst
@@ -4,7 +4,8 @@ CMAKE_<LANG>_ANDROID_TOOLCHAIN_PREFIX
 When :ref:`Cross Compiling for Android` this variable contains the absolute
 path prefixing the toolchain GNU compiler and its binutils.
 
-See also :variable:`CMAKE_<LANG>_ANDROID_TOOLCHAIN_SUFFIX`.
+See also :variable:`CMAKE_<LANG>_ANDROID_TOOLCHAIN_SUFFIX`
+and :variable:`CMAKE_<LANG>_ANDROID_TOOLCHAIN_MACHINE`.
 
 For example, the path to the linker is::
 
diff --git a/Help/variable/CMAKE_LANG_ANDROID_TOOLCHAIN_SUFFIX.rst b/Help/variable/CMAKE_LANG_ANDROID_TOOLCHAIN_SUFFIX.rst
index a4af640..159eb22 100644
--- a/Help/variable/CMAKE_LANG_ANDROID_TOOLCHAIN_SUFFIX.rst
+++ b/Help/variable/CMAKE_LANG_ANDROID_TOOLCHAIN_SUFFIX.rst
@@ -4,4 +4,5 @@ CMAKE_<LANG>_ANDROID_TOOLCHAIN_SUFFIX
 When :ref:`Cross Compiling for Android` this variable contains the
 host platform suffix of the toolchain GNU compiler and its binutils.
 
-See also :variable:`CMAKE_<LANG>_ANDROID_TOOLCHAIN_PREFIX`.
+See also :variable:`CMAKE_<LANG>_ANDROID_TOOLCHAIN_PREFIX`
+and :variable:`CMAKE_<LANG>_ANDROID_TOOLCHAIN_MACHINE`.