CMakeLists.txt: consistent whitespace in atomics check

Previous CMakeLists.txt rules used to mix TAB and SPACE indentation.
Consistently use TAB instead. This amends commit 4da54b6be6a1 which
introduced the check for the atomics library.

[ no change in behaviour, see whitespace ignoring diff to verify ]

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7791b1b138daa601b888f1f59ffe1c1d445e95c3..6bb72303b4320024da0ca4d708bb1107ea7ddc2c 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -151,41 +151,41 @@ find_package(Threads REQUIRED)
 
 # Helper for checking for atomics
 function(check_working_cxx_atomics varname additional_lib)
-  include(CheckCXXSourceCompiles)
-  include(CMakePushCheckState)
-  cmake_push_check_state()
-  set(CMAKE_REQUIRED_FLAGS "-std=c++11")
-  set(CMAKE_REQUIRED_LIBRARIES "${additional_lib}")
-  set(CMAKE_REQUIRED_QUIET 1)
-  CHECK_CXX_SOURCE_COMPILES("
+       include(CheckCXXSourceCompiles)
+       include(CMakePushCheckState)
+       cmake_push_check_state()
+       set(CMAKE_REQUIRED_FLAGS "-std=c++11")
+       set(CMAKE_REQUIRED_LIBRARIES "${additional_lib}")
+       set(CMAKE_REQUIRED_QUIET 1)
+       CHECK_CXX_SOURCE_COMPILES("
 #include <atomic>
 std::atomic<int> x;
 int main() {
-  return std::atomic_fetch_add_explicit(&x, 1, std::memory_order_seq_cst);
+       return std::atomic_fetch_add_explicit(&x, 1, std::memory_order_seq_cst);
 }
 " ${varname})
-  cmake_pop_check_state()
+       cmake_pop_check_state()
 endfunction(check_working_cxx_atomics)
 
 # First check if atomics work without the library.
 # If not, check if the library exists, and atomics work with it.
 check_working_cxx_atomics(HAVE_CXX_ATOMICS_WITHOUT_LIB "")
 if(HAVE_CXX_ATOMICS_WITHOUT_LIB)
-  message(STATUS "Atomics provided by the C-library - yes")
+       message(STATUS "Atomics provided by the C-library - yes")
 else()
-  message(STATUS "Atomics provided by the C-library - no")
-  find_library(LIBATOMIC_LIBRARY NAMES atomic PATH_SUFFIXES lib)
-  if(LIBATOMIC_LIBRARY)
-    check_working_cxx_atomics(HAVE_CXX_ATOMICS_WITH_LIB "${LIBATOMIC_LIBRARY}")
-    if (HAVE_CXX_ATOMICS_WITH_LIB)
-      message(STATUS "Atomics provided by libatomic - yes")
-    else()
-      message(STATUS "Atomics provided by libatomic - no")
-      message(FATAL_ERROR "Compiler must support std::atomic!")
-    endif()
-  else()
-    message(FATAL_ERROR "Compiler appears to require libatomic, but cannot find it.")
-  endif()
+       message(STATUS "Atomics provided by the C-library - no")
+       find_library(LIBATOMIC_LIBRARY NAMES atomic PATH_SUFFIXES lib)
+       if(LIBATOMIC_LIBRARY)
+               check_working_cxx_atomics(HAVE_CXX_ATOMICS_WITH_LIB "${LIBATOMIC_LIBRARY}")
+               if (HAVE_CXX_ATOMICS_WITH_LIB)
+                       message(STATUS "Atomics provided by libatomic - yes")
+               else()
+                       message(STATUS "Atomics provided by libatomic - no")
+                       message(FATAL_ERROR "Compiler must support std::atomic!")
+               endif()
+       else()
+               message(FATAL_ERROR "Compiler appears to require libatomic, but cannot find it.")
+       endif()
 endif()
 
 # Check availability of features which depend on library versions.