spack/var/spack/repos/builtin/packages/fmt/fmt-use-cmake-cxx-standard_3.0.0.patch

diff --git a/support/cmake/cxx11.cmake b/support/cmake/cxx11.cmake
index 31ea106..8581b9a 100644
--- a/support/cmake/cxx11.cmake
+++ b/support/cmake/cxx11.cmake
@@ -37,6 +37,10 @@ if (FMT_USE_CPP11)
   endif ()
 endif ()
 
+if (CMAKE_CXX_STANDARD)
+  set(CPP11_FLAG )
+endif ()
+
 set(CMAKE_REQUIRED_FLAGS ${CPP11_FLAG})
 
 # Check if variadic templates are working and not affected by GCC bug 39653:
fmt: Add version 5.3.0 with cxxstd variant support (#11799) * fmt: Add cxxstd variant, plus cmake/c++ patches Spack supported versions of fmt default to C++11 for versions less than 5, C++14 greater than 5, with fmt implementing fallbacks to whatever compiler supports. To give better ABI compatibility and use of newer standards, provide a `cxxstd` variant defaulting to 11 with 98-17 options. Use cmake_args to set CMAKE_CXX_STANDARD as appropriate, plus use of `FMT_USE_CPP11` option for C++98 builds. Use `conflicts` to disable use of certain standards in versions that don't support, or fail the build, with those standards. Add patches to unify use of `CMAKE_CXX_STANDARD` in 3.0 versions, remove hard-coding of compiler flags in `fmt-config.cmake`, and prevent use of C++11 features in 4.1.0 when in supported C++98 mode. Default to not building documents as no dependency on Doxygen is yet present, and they are not part of the "all" build. * Use CMake to enforce C++ standard support Fail configure step if fmt tries to build with a cxxstd variant not supported by the compiler (or known to CMake). * fmt: New version 5.3.0 2019-06-25 19:01:31 +08:00			`diff --git a/support/cmake/cxx11.cmake b/support/cmake/cxx11.cmake`
			`index 31ea106..8581b9a 100644`
			`--- a/support/cmake/cxx11.cmake`
			`+++ b/support/cmake/cxx11.cmake`
			`@@ -37,6 +37,10 @@ if (FMT_USE_CPP11)`
			`endif ()`
			`endif ()`

			`+if (CMAKE_CXX_STANDARD)`
			`+ set(CPP11_FLAG )`
			`+endif ()`
			`+`
			`set(CMAKE_REQUIRED_FLAGS ${CPP11_FLAG})`

			`# Check if variadic templates are working and not affected by GCC bug 39653:`