Add 'CMAKE_GCC_AR' and 'CMAKE_GCC_RANLIB' variables

Help/manual/cmake-variables.7.rst

@@ -40,6 +40,8 @@ Variables that Provide Information
    /variable/CMAKE_FIND_PACKAGE_NAME
    /variable/CMAKE_FIND_PACKAGE_SORT_DIRECTION
    /variable/CMAKE_FIND_PACKAGE_SORT_ORDER
+   /variable/CMAKE_GCC_AR
+   /variable/CMAKE_GCC_RANLIB
    /variable/CMAKE_GENERATOR
    /variable/CMAKE_GENERATOR_PLATFORM
    /variable/CMAKE_GENERATOR_TOOLSET

Help/release/dev/gcc_archiving_tools.rst

@@ -0,0 +1,8 @@
+gcc_archiving_tools
+-------------------
+
+* The :variable:`CMAKE_GCC_AR` variable with the path to GCC wrapper of ``ar``
+  utility was added.
+
+* The :variable:`CMAKE_GCC_RANLIB` variable with the path to GCC wrapper of
+  ``ranlib`` utility was added.

Help/variable/CMAKE_GCC_AR.rst

@@ -0,0 +1,7 @@
+CMAKE_GCC_AR
+------------
+
+A wrapper around ``ar`` adding the appropriate ``--plugin`` option for the
+GCC compiler. For other compilers variable is not defined.
+
+See also :variable:`CMAKE_AR`.

Help/variable/CMAKE_GCC_RANLIB.rst

@@ -0,0 +1,7 @@
+CMAKE_GCC_RANLIB
+----------------
+
+A wrapper around ``ranlib`` adding the appropriate ``--plugin`` option for the
+GCC compiler. For other compilers variable is not defined.
+
+See also :variable:`CMAKE_RANLIB`.

Modules/CMakeASMCompiler.cmake.in

@@ -1,7 +1,9 @@
 set(CMAKE_ASM@ASM_DIALECT@_COMPILER "@_CMAKE_ASM_COMPILER@")
 set(CMAKE_ASM@ASM_DIALECT@_COMPILER_ARG1 "@_CMAKE_ASM_COMPILER_ARG1@")
 set(CMAKE_AR "@CMAKE_AR@")
+set(CMAKE_GCC_AR "@CMAKE_GCC_AR@")
 set(CMAKE_RANLIB "@CMAKE_RANLIB@")
+set(CMAKE_GCC_RANLIB "@CMAKE_GCC_RANLIB@")
 set(CMAKE_LINKER "@CMAKE_LINKER@")
 set(CMAKE_ASM@ASM_DIALECT@_COMPILER_LOADED 1)
 set(CMAKE_ASM@ASM_DIALECT@_COMPILER_ID "@_CMAKE_ASM_COMPILER_ID@")

Modules/CMakeCCompiler.cmake.in

@@ -14,7 +14,9 @@ set(CMAKE_C_SIMULATE_ID "@CMAKE_C_SIMULATE_ID@")
 set(CMAKE_C_SIMULATE_VERSION "@CMAKE_C_SIMULATE_VERSION@")
 @SET_MSVC_C_ARCHITECTURE_ID@
 set(CMAKE_AR "@CMAKE_AR@")
+set(CMAKE_GCC_AR "@CMAKE_GCC_AR@")
 set(CMAKE_RANLIB "@CMAKE_RANLIB@")
+set(CMAKE_GCC_RANLIB "@CMAKE_GCC_RANLIB@")
 set(CMAKE_LINKER "@CMAKE_LINKER@")
 set(CMAKE_COMPILER_IS_GNUCC @CMAKE_COMPILER_IS_GNUCC@)
 set(CMAKE_C_COMPILER_LOADED 1)

Modules/CMakeCXXCompiler.cmake.in

@@ -15,7 +15,9 @@ set(CMAKE_CXX_SIMULATE_ID "@CMAKE_CXX_SIMULATE_ID@")
 set(CMAKE_CXX_SIMULATE_VERSION "@CMAKE_CXX_SIMULATE_VERSION@")
 @SET_MSVC_CXX_ARCHITECTURE_ID@
 set(CMAKE_AR "@CMAKE_AR@")
+set(CMAKE_GCC_AR "@CMAKE_GCC_AR@")
 set(CMAKE_RANLIB "@CMAKE_RANLIB@")
+set(CMAKE_GCC_RANLIB "@CMAKE_GCC_RANLIB@")
 set(CMAKE_LINKER "@CMAKE_LINKER@")
 set(CMAKE_COMPILER_IS_GNUCXX @CMAKE_COMPILER_IS_GNUCXX@)
 set(CMAKE_CXX_COMPILER_LOADED 1)

Modules/CMakeDetermineCCompiler.cmake

@@ -166,6 +166,10 @@ if (CMAKE_CROSSCOMPILING  AND NOT _CMAKE_TOOLCHAIN_PREFIX)
 endif ()
 
 include(CMakeFindBinUtils)
+set(_CMAKE_PROCESSING_LANGUAGE "C")
+include(Compiler/${CMAKE_C_COMPILER_ID}-FindBinUtils OPTIONAL)
+unset(_CMAKE_PROCESSING_LANGUAGE)
+
 if(MSVC_C_ARCHITECTURE_ID)
   set(SET_MSVC_C_ARCHITECTURE_ID
     "set(MSVC_C_ARCHITECTURE_ID ${MSVC_C_ARCHITECTURE_ID})")

Modules/CMakeDetermineCXXCompiler.cmake

@@ -161,6 +161,10 @@ if (CMAKE_CROSSCOMPILING  AND NOT  _CMAKE_TOOLCHAIN_PREFIX)
 endif ()
 
 include(CMakeFindBinUtils)
+set(_CMAKE_PROCESSING_LANGUAGE "CXX")
+include(Compiler/${CMAKE_CXX_COMPILER_ID}-FindBinUtils OPTIONAL)
+unset(_CMAKE_PROCESSING_LANGUAGE)
+
 if(MSVC_CXX_ARCHITECTURE_ID)
   set(SET_MSVC_CXX_ARCHITECTURE_ID
     "set(MSVC_CXX_ARCHITECTURE_ID ${MSVC_CXX_ARCHITECTURE_ID})")

Modules/CMakeDetermineFortranCompiler.cmake

@@ -255,6 +255,9 @@ if (CMAKE_CROSSCOMPILING  AND NOT _CMAKE_TOOLCHAIN_PREFIX)
 endif ()
 
 include(CMakeFindBinUtils)
+set(_CMAKE_PROCESSING_LANGUAGE "Fortran")
+include(Compiler/${CMAKE_Fortran_COMPILER_ID}-FindBinUtils OPTIONAL)
+unset(_CMAKE_PROCESSING_LANGUAGE)
 
 if(MSVC_Fortran_ARCHITECTURE_ID)
   set(SET_MSVC_Fortran_ARCHITECTURE_ID

Modules/CMakeFortranCompiler.cmake.in

@@ -8,7 +8,9 @@ set(CMAKE_Fortran_SIMULATE_ID "@CMAKE_Fortran_SIMULATE_ID@")
 set(CMAKE_Fortran_SIMULATE_VERSION "@CMAKE_Fortran_SIMULATE_VERSION@")
 @SET_MSVC_Fortran_ARCHITECTURE_ID@
 set(CMAKE_AR "@CMAKE_AR@")
+set(CMAKE_GCC_AR "@CMAKE_GCC_AR@")
 set(CMAKE_RANLIB "@CMAKE_RANLIB@")
+set(CMAKE_GCC_RANLIB "@CMAKE_GCC_RANLIB@")
 set(CMAKE_COMPILER_IS_GNUG77 @CMAKE_COMPILER_IS_GNUG77@)
 set(CMAKE_Fortran_COMPILER_LOADED 1)
 set(CMAKE_Fortran_COMPILER_WORKS @CMAKE_Fortran_COMPILER_WORKS@)

Modules/Compiler/GNU-FindBinUtils.cmake

@@ -0,0 +1,27 @@
+cmake_policy(SET CMP0054 NEW)
+
+if("${_CMAKE_PROCESSING_LANGUAGE}" STREQUAL "")
+  message(FATAL_ERROR "Internal error: _CMAKE_PROCESSING_LANGUAGE is not set")
+endif()
+
+string(REGEX MATCH "^([0-9]+\\.[0-9]+)" __version_x_y
+    "${CMAKE_${_CMAKE_PROCESSING_LANGUAGE}_COMPILER_VERSION}")
+
+# Try to find tools in the same directory as GCC itself
+get_filename_component(__gcc_hints "${CMAKE_${_CMAKE_PROCESSING_LANGUAGE}_COMPILER}" DIRECTORY)
+
+# http://manpages.ubuntu.com/manpages/wily/en/man1/gcc-ar.1.html
+find_program(CMAKE_GCC_AR NAMES
+    "${_CMAKE_TOOLCHAIN_PREFIX}gcc-ar"
+    "${_CMAKE_TOOLCHAIN_PREFIX}gcc-ar-${__version_x_y}"
+    HINTS ${__gcc_hints}
+    DOC "A wrapper around 'ar' adding the appropriate '--plugin' option for the GCC compiler"
+)
+
+# http://manpages.ubuntu.com/manpages/wily/en/man1/gcc-ranlib.1.html
+find_program(CMAKE_GCC_RANLIB NAMES
+    "${_CMAKE_TOOLCHAIN_PREFIX}gcc-ranlib"
+    "${_CMAKE_TOOLCHAIN_PREFIX}gcc-ranlib-${__version_x_y}"
+    HINTS ${__gcc_hints}
+    DOC "A wrapper around 'ranlib' adding the appropriate '--plugin' option for the GCC compiler"
+)