cmake: change include guard

cmake-format will indent the body of the include guard. Use a
style which does not put the body inside the guard.
https://cmake.org/Wiki/CMake_Performance_Tips#Use_an_include_guard

Rename cbuild/cmake/aom_config.c.cmake to .template to simplify
upcoming formatting.

Change-Id: I70724683d5e581f1b4f69418ed185e0b92df27c3

aom_dsp/aom_dsp.cmake

diff --git a/aom_dsp/aom_dsp.cmake b/aom_dsp/aom_dsp.cmake
index 4a19d1e..51fe930 100644
--- a/aom_dsp/aom_dsp.cmake
+++ b/aom_dsp/aom_dsp.cmake
@@ -8,7 +8,9 @@
 ## Media Patent License 1.0 was not distributed with this source code in the
 ## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
 ##
-if (NOT AOM_AOM_DSP_AOM_DSP_CMAKE_)
+if (AOM_AOM_DSP_AOM_DSP_CMAKE_)
+  return()
+endif ()  # AOM_AOM_DSP_AOM_DSP_CMAKE_
 set(AOM_AOM_DSP_AOM_DSP_CMAKE_ 1)
 
 set(AOM_DSP_COMMON_SOURCES
@@ -472,5 +474,3 @@
   # $AOM_LIB_TARGETS.
   set(AOM_LIB_TARGETS ${AOM_LIB_TARGETS} PARENT_SCOPE)
 endfunction ()
-
-endif ()  # AOM_AOM_DSP_AOM_DSP_CMAKE_

aom_mem/aom_mem.cmake

diff --git a/aom_mem/aom_mem.cmake b/aom_mem/aom_mem.cmake
index a142824..3af78d0 100644
--- a/aom_mem/aom_mem.cmake
+++ b/aom_mem/aom_mem.cmake
@@ -8,7 +8,9 @@
 ## Media Patent License 1.0 was not distributed with this source code in the
 ## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
 ##
-if (NOT AOM_AOM_MEM_AOM_MEM_CMAKE_)
+if (AOM_AOM_MEM_AOM_MEM_CMAKE_)
+  return()
+endif ()  # AOM_AOM_MEM_AOM_MEM_CMAKE_
 set(AOM_AOM_MEM_AOM_MEM_CMAKE_ 1)
 
 set(AOM_MEM_SOURCES
@@ -23,5 +25,3 @@
   set(AOM_LIB_TARGETS ${AOM_LIB_TARGETS} aom_mem PARENT_SCOPE)
   target_sources(aom PRIVATE $<TARGET_OBJECTS:aom_mem>)
 endfunction ()
-
-endif ()  # AOM_AOM_MEM_AOM_MEM_CMAKE_

aom_ports/aom_ports.cmake

diff --git a/aom_ports/aom_ports.cmake b/aom_ports/aom_ports.cmake
index e1ffb56..7e28342 100644
--- a/aom_ports/aom_ports.cmake
+++ b/aom_ports/aom_ports.cmake
@@ -8,7 +8,9 @@
 ## Media Patent License 1.0 was not distributed with this source code in the
 ## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
 ##
-if (NOT AOM_AOM_PORTS_AOM_PORTS_CMAKE_)
+if (AOM_AOM_PORTS_AOM_PORTS_CMAKE_)
+  return()
+endif ()  # AOM_AOM_PORTS_AOM_PORTS_CMAKE_
 set(AOM_AOM_PORTS_AOM_PORTS_CMAKE_ 1)
 
 set(AOM_PORTS_INCLUDES
@@ -66,5 +68,3 @@
     endif ()
   endif ()
 endfunction ()
-
-endif ()  # AOM_AOM_PORTS_AOM_PORTS_CMAKE_

aom_scale/aom_scale.cmake

diff --git a/aom_scale/aom_scale.cmake b/aom_scale/aom_scale.cmake
index 1c00b59..d9c7a71 100644
--- a/aom_scale/aom_scale.cmake
+++ b/aom_scale/aom_scale.cmake
@@ -8,7 +8,9 @@
 ## Media Patent License 1.0 was not distributed with this source code in the
 ## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
 ##
-if (NOT AOM_AOM_SCALE_AOM_SCALE_CMAKE_)
+if (AOM_AOM_SCALE_AOM_SCALE_CMAKE_)
+  return()
+endif ()  # AOM_AOM_SCALE_AOM_SCALE_CMAKE_
 set(AOM_AOM_SCALE_AOM_SCALE_CMAKE_ 1)
 
 set(AOM_SCALE_SOURCES
@@ -35,5 +37,3 @@
 
   set(AOM_LIB_TARGETS ${AOM_LIB_TARGETS} aom_scale PARENT_SCOPE)
 endfunction ()
-
-endif ()  # AOM_AOM_SCALE_AOM_SCALE_CMAKE_

aom_util/aom_util.cmake

diff --git a/aom_util/aom_util.cmake b/aom_util/aom_util.cmake
index 34e2261..9fa6947 100644
--- a/aom_util/aom_util.cmake
+++ b/aom_util/aom_util.cmake
@@ -8,7 +8,9 @@
 ## Media Patent License 1.0 was not distributed with this source code in the
 ## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
 ##
-if (NOT AOM_AOM_UTIL_AOM_UTIL_CMAKE_)
+if (AOM_AOM_UTIL_AOM_UTIL_CMAKE_)
+  return()
+endif ()  # AOM_AOM_UTIL_AOM_UTIL_CMAKE_
 set(AOM_AOM_UTIL_AOM_UTIL_CMAKE_ 1)
 
 set(AOM_UTIL_SOURCES
@@ -25,5 +27,3 @@
   set(AOM_LIB_TARGETS ${AOM_LIB_TARGETS} aom_util PARENT_SCOPE)
   target_sources(aom PRIVATE $<TARGET_OBJECTS:aom_util>)
 endfunction ()
-
-endif ()  # AOM_AOM_UTIL_AOM_UTIL_CMAKE_

av1/av1.cmake

diff --git a/av1/av1.cmake b/av1/av1.cmake
index 9be05d2..7b6b976 100644
--- a/av1/av1.cmake
+++ b/av1/av1.cmake
@@ -8,7 +8,9 @@
 ## Media Patent License 1.0 was not distributed with this source code in the
 ## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
 ##
-if (NOT AOM_AV1_AV1_CMAKE_)
+if (AOM_AV1_AV1_CMAKE_)
+  return()
+endif ()  # AOM_AV1_AV1_CMAKE_
 set(AOM_AV1_AV1_CMAKE_ 1)
 
 set(AOM_AV1_COMMON_SOURCES
@@ -625,5 +627,3 @@
 
 function (setup_av1_test_targets)
 endfunction ()
-
-endif ()  # AOM_AV1_AV1_CMAKE_

build/cmake/aom_config.c.template

diff --git a/build/cmake/aom_config.c.cmake b/build/cmake/aom_config.c.template
similarity index 100%
rename from build/cmake/aom_config.c.cmake
rename to build/cmake/aom_config.c.template

build/cmake/aom_configure.cmake

diff --git a/build/cmake/aom_configure.cmake b/build/cmake/aom_configure.cmake
index d9f480b..20b6daa 100644
--- a/build/cmake/aom_configure.cmake
+++ b/build/cmake/aom_configure.cmake
@@ -8,7 +8,9 @@
 ## Media Patent License 1.0 was not distributed with this source code in the
 ## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
 ##
-if (NOT AOM_BUILD_CMAKE_AOM_CONFIGURE_CMAKE_)
+if (AOM_BUILD_CMAKE_AOM_CONFIGURE_CMAKE_)
+  return()
+endif ()  # AOM_BUILD_CMAKE_AOM_CONFIGURE_CMAKE_
 set(AOM_BUILD_CMAKE_AOM_CONFIGURE_CMAKE_ 1)
 
 include(FindGit)
@@ -313,7 +315,7 @@
   message("--- Git missing, version will be read from CHANGELOG.")
 endif ()
 
-configure_file("${AOM_ROOT}/build/cmake/aom_config.c.cmake"
+configure_file("${AOM_ROOT}/build/cmake/aom_config.c.template"
                "${AOM_CONFIG_DIR}/aom_config.c")
 
 # Find Perl and generate the RTCD sources.
@@ -375,5 +377,3 @@
     -DHAVE_PTHREAD_H=${HAVE_PTHREAD_H}
     -P "${AOM_ROOT}/build/cmake/pkg_config.cmake")
 endif ()
-
-endif ()  # AOM_BUILD_CMAKE_AOM_CONFIGURE_CMAKE_

build/cmake/aom_experiment_deps.cmake

diff --git a/build/cmake/aom_experiment_deps.cmake b/build/cmake/aom_experiment_deps.cmake
index c8b15c8..9e8a532 100644
--- a/build/cmake/aom_experiment_deps.cmake
+++ b/build/cmake/aom_experiment_deps.cmake
@@ -8,7 +8,9 @@
 ## Media Patent License 1.0 was not distributed with this source code in the
 ## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
 ##
-if (NOT AOM_BUILD_CMAKE_AOM_EXPERIMENT_DEPS_CMAKE_)
+if (AOM_BUILD_CMAKE_AOM_EXPERIMENT_DEPS_CMAKE_)
+  return()
+endif ()  # AOM_BUILD_CMAKE_AOM_EXPERIMENT_DEPS_CMAKE_
 set(AOM_BUILD_CMAKE_AOM_EXPERIMENT_DEPS_CMAKE_ 1)
 
 # Adjusts CONFIG_* CMake variables to address conflicts between active AV1
@@ -26,5 +28,3 @@
   endif()
 
 endmacro ()
-
-endif ()  # AOM_BUILD_CMAKE_AOM_EXPERIMENT_DEPS_CMAKE_

build/cmake/aom_optimization.cmake

diff --git a/build/cmake/aom_optimization.cmake b/build/cmake/aom_optimization.cmake
index f5ea3d1..15c7074 100644
--- a/build/cmake/aom_optimization.cmake
+++ b/build/cmake/aom_optimization.cmake
@@ -8,7 +8,9 @@
 ## Media Patent License 1.0 was not distributed with this source code in the
 ## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
 ##
-if (NOT AOM_BUILD_CMAKE_AOM_OPTIMIZATION_CMAKE_)
+if (AOM_BUILD_CMAKE_AOM_OPTIMIZATION_CMAKE_)
+  return()
+endif ()  # AOM_BUILD_CMAKE_AOM_OPTIMIZATION_CMAKE_
 set(AOM_BUILD_CMAKE_AOM_OPTIMIZATION_CMAKE_ 1)
 
 include("${AOM_ROOT}/build/cmake/util.cmake")
@@ -263,5 +265,3 @@
   set_property(SOURCE ${source} PROPERTY OBJECT_DEPENDS ${output})
   set_property(SOURCE ${output} PROPERTY GENERATED)
 endfunction ()
-
-endif ()  # AOM_BUILD_CMAKE_AOM_OPTIMIZATION_CMAKE_

build/cmake/compiler_flags.cmake

diff --git a/build/cmake/compiler_flags.cmake b/build/cmake/compiler_flags.cmake
index b252995..93b1bbf 100644
--- a/build/cmake/compiler_flags.cmake
+++ b/build/cmake/compiler_flags.cmake
@@ -8,7 +8,9 @@
 ## Media Patent License 1.0 was not distributed with this source code in the
 ## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
 ##
-if (NOT AOM_BUILD_CMAKE_COMPILER_FLAGS_CMAKE_)
+if (AOM_BUILD_CMAKE_COMPILER_FLAGS_CMAKE_)
+  return()
+endif ()  # AOM_BUILD_CMAKE_COMPILER_FLAGS_CMAKE_
 set(AOM_BUILD_CMAKE_COMPILER_FLAGS_CMAKE_ 1)
 
 include(CheckCCompilerFlag)
@@ -368,5 +370,3 @@
     endif ()
   endif ()
 endfunction ()
-
-endif ()  # AOM_BUILD_CMAKE_COMPILER_FLAGS_CMAKE_

build/cmake/compiler_tests.cmake

diff --git a/build/cmake/compiler_tests.cmake b/build/cmake/compiler_tests.cmake
index 8a73ec8..d58a185 100644
--- a/build/cmake/compiler_tests.cmake
+++ b/build/cmake/compiler_tests.cmake
@@ -8,7 +8,9 @@
 ## Media Patent License 1.0 was not distributed with this source code in the
 ## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
 ##
-if (NOT AOM_BUILD_CMAKE_COMPILER_TESTS_CMAKE_)
+if (AOM_BUILD_CMAKE_COMPILER_TESTS_CMAKE_)
+  return()
+endif ()  # AOM_BUILD_CMAKE_COMPILER_TESTS_CMAKE_
 set(AOM_BUILD_CMAKE_COMPILER_TESTS_CMAKE_ 1)
 
 include(CheckCSourceCompiles)
@@ -170,5 +172,3 @@
     set(${result} "__inline" PARENT_SCOPE)
   endif ()
 endfunction ()
-
-endif ()  # AOM_BUILD_CMAKE_COMPILER_TESTS_CMAKE_

build/cmake/cpu.cmake

diff --git a/build/cmake/cpu.cmake b/build/cmake/cpu.cmake
index 0e3eb73..9c643d4 100644
--- a/build/cmake/cpu.cmake
+++ b/build/cmake/cpu.cmake
@@ -9,7 +9,6 @@
 ## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
 ##
 
-
 if ("${AOM_TARGET_CPU}" STREQUAL "arm64")
   set(ARCH_ARM 1)
   set(RTCD_ARCH_ARM "yes")

build/cmake/exports.cmake

diff --git a/build/cmake/exports.cmake b/build/cmake/exports.cmake
index 8153aad..b4cbf1e 100644
--- a/build/cmake/exports.cmake
+++ b/build/cmake/exports.cmake
@@ -8,7 +8,9 @@
 ## Media Patent License 1.0 was not distributed with this source code in the
 ## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
 ##
-if (NOT AOM_BUILD_CMAKE_EXPORTS_CMAKE_)
+if (AOM_BUILD_CMAKE_EXPORTS_CMAKE_)
+  return()
+endif ()  # AOM_BUILD_CMAKE_EXPORTS_CMAKE_
 set(AOM_BUILD_CMAKE_EXPORTS_CMAKE_ 1)
 
 include("${AOM_ROOT}/build/cmake/exports_sources.cmake")
@@ -61,5 +63,3 @@
                  "-Wl,--version-script,${aom_sym_file}")
   endif ()
 endfunction ()
-
-endif ()  # AOM_BUILD_CMAKE_EXPORTS_CMAKE_

build/cmake/exports_sources.cmake

diff --git a/build/cmake/exports_sources.cmake b/build/cmake/exports_sources.cmake
index 36f79ee..db34cb2 100644
--- a/build/cmake/exports_sources.cmake
+++ b/build/cmake/exports_sources.cmake
@@ -8,7 +8,9 @@
 ## Media Patent License 1.0 was not distributed with this source code in the
 ## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
 ##
-if (NOT AOM_BUILD_CMAKE_EXPORTS_SOURCES_CMAKE_)
+if (AOM_BUILD_CMAKE_EXPORTS_SOURCES_CMAKE_)
+  return()
+endif ()  # AOM_BUILD_CMAKE_EXPORTS_SOURCES_CMAKE_
 set(AOM_BUILD_CMAKE_EXPORTS_SOURCES_CMAKE_ 1)
 
 set(AOM_EXPORTS_SOURCES "${AOM_ROOT}/aom/exports_com")
@@ -26,5 +28,3 @@
       "${AOM_ROOT}/aom/exports_enc"
       "${AOM_ROOT}/av1/exports_enc")
 endif ()
-
-endif ()  # AOM_BUILD_CMAKE_EXPORTS_SOURCES_CMAKE_

build/cmake/msvc_runtime.cmake

diff --git a/build/cmake/msvc_runtime.cmake b/build/cmake/msvc_runtime.cmake
index 3da5f7d..1e5542a 100644
--- a/build/cmake/msvc_runtime.cmake
+++ b/build/cmake/msvc_runtime.cmake
@@ -8,7 +8,9 @@
 ## Media Patent License 1.0 was not distributed with this source code in the
 ## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
 ##
-if (NOT AOM_BUILD_CMAKE_MSVC_RUNTIME_CMAKE_)
+if (AOM_BUILD_CMAKE_MSVC_RUNTIME_CMAKE_)
+  return()
+endif ()  # AOM_BUILD_CMAKE_MSVC_RUNTIME_CMAKE_
 set(AOM_BUILD_CMAKE_MSVC_RUNTIME_CMAKE_ 1)
 
 if (MSVC)
@@ -26,5 +28,3 @@
     endforeach (flag_var)
   endif ()
 endif ()
-
-endif ()  # AOM_BUILD_CMAKE_MSVC_RUNTIME_CMAKE_

build/cmake/sanitizers.cmake

diff --git a/build/cmake/sanitizers.cmake b/build/cmake/sanitizers.cmake
index 2b90678..6828c1d 100644
--- a/build/cmake/sanitizers.cmake
+++ b/build/cmake/sanitizers.cmake
@@ -8,7 +8,9 @@
 ## Media Patent License 1.0 was not distributed with this source code in the
 ## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
 ##
-if (NOT AOM_BUILD_CMAKE_SANITIZERS_CMAKE_)
+if (AOM_BUILD_CMAKE_SANITIZERS_CMAKE_)
+  return()
+endif()  # AOM_BUILD_CMAKE_SANITIZERS_CMAKE_
 set(AOM_BUILD_CMAKE_SANITIZERS_CMAKE_ 1)
 
 if (MSVC OR NOT SANITIZE)
@@ -25,5 +27,3 @@
 
 # Make callstacks accurate.
 require_compiler_flag("-fno-omit-frame-pointer -fno-optimize-sibling-calls" YES)
-
-endif()  # AOM_BUILD_CMAKE_SANITIZERS_CMAKE_

build/cmake/toolchains/arm-ios-common.cmake

diff --git a/build/cmake/toolchains/arm-ios-common.cmake b/build/cmake/toolchains/arm-ios-common.cmake
index 8929f3b..ba96da3 100644
--- a/build/cmake/toolchains/arm-ios-common.cmake
+++ b/build/cmake/toolchains/arm-ios-common.cmake
@@ -8,7 +8,9 @@
 ## Media Patent License 1.0 was not distributed with this source code in the
 ## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
 ##
-if (NOT AOM_BUILD_CMAKE_TOOLCHAINS_ARM_IOS_COMMON_CMAKE_)
+if (AOM_BUILD_CMAKE_TOOLCHAINS_ARM_IOS_COMMON_CMAKE_)
+  return()
+endif ()  # AOM_BUILD_CMAKE_TOOLCHAINS_ARM_IOS_COMMON_CMAKE_
 set(AOM_BUILD_CMAKE_ARM_IOS_COMMON_CMAKE_ 1)
 
 set(CMAKE_SYSTEM_NAME "Darwin")
@@ -27,5 +29,3 @@
 set(CONFIG_RUNTIME_CPU_DETECT 0 CACHE NUMBER "")
 
 # TODO(tomfinegan): Handle bit code embedding.
-
-endif ()  # AOM_BUILD_CMAKE_TOOLCHAINS_ARM_IOS_COMMON_CMAKE_

build/cmake/toolchains/arm64-ios.cmake

diff --git a/build/cmake/toolchains/arm64-ios.cmake b/build/cmake/toolchains/arm64-ios.cmake
index 434809d..ce9d5c4 100644
--- a/build/cmake/toolchains/arm64-ios.cmake
+++ b/build/cmake/toolchains/arm64-ios.cmake
@@ -8,7 +8,9 @@
 ## Media Patent License 1.0 was not distributed with this source code in the
 ## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
 ##
-if (NOT AOM_BUILD_CMAKE_TOOLCHAINS_ARM64_IOS_CMAKE_)
+if (AOM_BUILD_CMAKE_TOOLCHAINS_ARM64_IOS_CMAKE_)
+  return()
+endif ()  # AOM_BUILD_CMAKE_TOOLCHAINS_ARM64_IOS_CMAKE_
 set(AOM_BUILD_CMAKE_TOOLCHAINS_ARM64_IOS_CMAKE_ 1)
 
 if (XCODE)
@@ -20,5 +22,3 @@
 set(CMAKE_OSX_ARCHITECTURES "arm64")
 
 include("${CMAKE_CURRENT_LIST_DIR}/arm-ios-common.cmake")
-
-endif ()  # AOM_BUILD_CMAKE_TOOLCHAINS_ARM64_IOS_CMAKE_

build/cmake/toolchains/arm64-linux-gcc.cmake

diff --git a/build/cmake/toolchains/arm64-linux-gcc.cmake b/build/cmake/toolchains/arm64-linux-gcc.cmake
index 303f1cf..a309e77 100644
--- a/build/cmake/toolchains/arm64-linux-gcc.cmake
+++ b/build/cmake/toolchains/arm64-linux-gcc.cmake
@@ -8,7 +8,9 @@
 ## Media Patent License 1.0 was not distributed with this source code in the
 ## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
 ##
-if (NOT AOM_BUILD_CMAKE_TOOLCHAINS_ARM64_LINUX_GCC_CMAKE_)
+if (AOM_BUILD_CMAKE_TOOLCHAINS_ARM64_LINUX_GCC_CMAKE_)
+  return()
+endif ()  # AOM_BUILD_CMAKE_TOOLCHAINS_ARM64_LINUX_GCC_CMAKE_
 set(AOM_BUILD_CMAKE_TOOLCHAINS_ARM64_LINUX_GCC_CMAKE_ 1)
 
 set(CMAKE_SYSTEM_NAME "Linux")
@@ -31,5 +33,3 @@
 
 # No runtime cpu detect for arm64-linux-gcc.
 set(CONFIG_RUNTIME_CPU_DETECT 0 CACHE NUMBER "")
-
-endif ()  # AOM_BUILD_CMAKE_TOOLCHAINS_ARM64_LINUX_GCC_CMAKE_

build/cmake/toolchains/arm64-mingw-gcc.cmake

diff --git a/build/cmake/toolchains/arm64-mingw-gcc.cmake b/build/cmake/toolchains/arm64-mingw-gcc.cmake
index 56f1c17..cbf9b1b 100644
--- a/build/cmake/toolchains/arm64-mingw-gcc.cmake
+++ b/build/cmake/toolchains/arm64-mingw-gcc.cmake
@@ -8,7 +8,9 @@
 ## Media Patent License 1.0 was not distributed with this source code in the
 ## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
 ##
-if (NOT AOM_BUILD_CMAKE_TOOLCHAINS_ARM64_MINGW_GCC_CMAKE_)
+if (AOM_BUILD_CMAKE_TOOLCHAINS_ARM64_MINGW_GCC_CMAKE_)
+  return()
+endif ()  # AOM_BUILD_CMAKE_TOOLCHAINS_ARM64_MINGW_GCC_CMAKE_
 set(AOM_BUILD_CMAKE_TOOLCHAINS_ARM64_MINGW_GCC_CMAKE_ 1)
 
 set(CMAKE_SYSTEM_PROCESSOR "arm64")
@@ -26,5 +28,3 @@
 
 # Disable the use of the gtest's CMake support.
 set(AOM_DISABLE_GTEST_CMAKE 1)
-
-endif ()  # AOM_BUILD_CMAKE_TOOLCHAINS_ARM64_MINGW_GCC_CMAKE_

build/cmake/toolchains/armv7-ios.cmake

diff --git a/build/cmake/toolchains/armv7-ios.cmake b/build/cmake/toolchains/armv7-ios.cmake
index c1e72ce..d05c14e 100644
--- a/build/cmake/toolchains/armv7-ios.cmake
+++ b/build/cmake/toolchains/armv7-ios.cmake
@@ -8,7 +8,9 @@
 ## Media Patent License 1.0 was not distributed with this source code in the
 ## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
 ##
-if (NOT AOM_BUILD_CMAKE_TOOLCHAINS_ARMV7_IOS_CMAKE_)
+if (AOM_BUILD_CMAKE_TOOLCHAINS_ARMV7_IOS_CMAKE_)
+  return()
+endif ()  # AOM_BUILD_CMAKE_TOOLCHAINS_ARMV7_IOS_CMAKE_
 set(AOM_BUILD_CMAKE_TOOLCHAINS_ARMV7_IOS_CMAKE_ 1)
 
 if (XCODE)
@@ -26,5 +28,3 @@
 
 # No runtime cpu detect for armv7s-ios.
 set(CONFIG_RUNTIME_CPU_DETECT 0 CACHE NUMBER "")
-
-endif ()  # AOM_BUILD_CMAKE_TOOLCHAINS_ARMV7_IOS_CMAKE_

build/cmake/toolchains/armv7-linux-gcc.cmake

diff --git a/build/cmake/toolchains/armv7-linux-gcc.cmake b/build/cmake/toolchains/armv7-linux-gcc.cmake
index 13a7377..7e43b3e 100644
--- a/build/cmake/toolchains/armv7-linux-gcc.cmake
+++ b/build/cmake/toolchains/armv7-linux-gcc.cmake
@@ -8,7 +8,9 @@
 ## Media Patent License 1.0 was not distributed with this source code in the
 ## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
 ##
-if (NOT AOM_BUILD_CMAKE_TOOLCHAINS_ARMV7_LINUX_GCC_CMAKE_)
+if (AOM_BUILD_CMAKE_TOOLCHAINS_ARMV7_LINUX_GCC_CMAKE_)
+  return()
+endif ()  # AOM_BUILD_CMAKE_TOOLCHAINS_ARMV7_LINUX_GCC_CMAKE_
 set(AOM_BUILD_CMAKE_TOOLCHAINS_ARMV7_LINUX_GCC_CMAKE_ 1)
 
 set(CMAKE_SYSTEM_NAME "Linux")
@@ -44,5 +46,3 @@
 
 # No runtime cpu detect for armv7-linux-gcc.
 set(CONFIG_RUNTIME_CPU_DETECT 0 CACHE NUMBER "")
-
-endif ()  # AOM_BUILD_CMAKE_TOOLCHAINS_ARMV7_LINUX_GCC_CMAKE_

build/cmake/toolchains/armv7-mingw-gcc.cmake

diff --git a/build/cmake/toolchains/armv7-mingw-gcc.cmake b/build/cmake/toolchains/armv7-mingw-gcc.cmake
index f80dc0c..9fa4a56 100644
--- a/build/cmake/toolchains/armv7-mingw-gcc.cmake
+++ b/build/cmake/toolchains/armv7-mingw-gcc.cmake
@@ -8,7 +8,9 @@
 ## Media Patent License 1.0 was not distributed with this source code in the
 ## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
 ##
-if (NOT AOM_BUILD_CMAKE_TOOLCHAINS_ARMV7_MINGW_GCC_CMAKE_)
+if (AOM_BUILD_CMAKE_TOOLCHAINS_ARMV7_MINGW_GCC_CMAKE_)
+  return()
+endif ()  # AOM_BUILD_CMAKE_TOOLCHAINS_ARMV7_MINGW_GCC_CMAKE_
 set(AOM_BUILD_CMAKE_TOOLCHAINS_ARMV7_MINGW_GCC_CMAKE_ 1)
 
 set(CMAKE_SYSTEM_PROCESSOR "armv7")
@@ -32,5 +34,3 @@
 
 # Disable the use of the gtest's CMake support.
 set(AOM_DISABLE_GTEST_CMAKE 1)
-
-endif ()  # AOM_BUILD_CMAKE_TOOLCHAINS_ARMV7_MINGW_GCC_CMAKE_

build/cmake/toolchains/armv7s-ios.cmake

diff --git a/build/cmake/toolchains/armv7s-ios.cmake b/build/cmake/toolchains/armv7s-ios.cmake
index bdb627c..59d98aa 100644
--- a/build/cmake/toolchains/armv7s-ios.cmake
+++ b/build/cmake/toolchains/armv7s-ios.cmake
@@ -8,7 +8,9 @@
 ## Media Patent License 1.0 was not distributed with this source code in the
 ## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
 ##
-if (NOT AOM_BUILD_CMAKE_TOOLCHAINS_ARMV7S_IOS_CMAKE_)
+if (AOM_BUILD_CMAKE_TOOLCHAINS_ARMV7S_IOS_CMAKE_)
+  return()
+endif ()  # AOM_BUILD_CMAKE_TOOLCHAINS_ARMV7S_IOS_CMAKE_
 set(AOM_BUILD_CMAKE_TOOLCHAINS_ARMV7S_IOS_CMAKE_ 1)
 
 if (XCODE)
@@ -26,5 +28,3 @@
 
 # No runtime cpu detect for armv7s-ios.
 set(CONFIG_RUNTIME_CPU_DETECT 0 CACHE NUMBER "")
-
-endif ()  # AOM_BUILD_CMAKE_TOOLCHAINS_ARMV7S_IOS_CMAKE_

build/cmake/toolchains/ios-simulator-common.cmake

diff --git a/build/cmake/toolchains/ios-simulator-common.cmake b/build/cmake/toolchains/ios-simulator-common.cmake
index 7a28e32..9bb465a 100644
--- a/build/cmake/toolchains/ios-simulator-common.cmake
+++ b/build/cmake/toolchains/ios-simulator-common.cmake
@@ -8,7 +8,9 @@
 ## Media Patent License 1.0 was not distributed with this source code in the
 ## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
 ##
-if (NOT AOM_BUILD_CMAKE_TOOLCHAINS_IOS_SIMULATOR_COMMON_CMAKE_)
+if (AOM_BUILD_CMAKE_TOOLCHAINS_IOS_SIMULATOR_COMMON_CMAKE_)
+  return()
+endif ()  # AOM_BUILD_CMAKE_TOOLCHAINS_IOS_SIMULATOR_COMMON_CMAKE_
 set(AOM_BUILD_CMAKE_IOS_SIMULATOR_COMMON_CMAKE_ 1)
 
 set(CMAKE_SYSTEM_NAME "Darwin")
@@ -19,5 +21,3 @@
 set(CMAKE_CXX_COMPILER_ARG1 "-arch ${CMAKE_SYSTEM_PROCESSOR}")
 
 # TODO(tomfinegan): Handle bit code embedding.
-
-endif ()  # AOM_BUILD_CMAKE_TOOLCHAINS_IOS_SIMULATOR_COMMON_CMAKE_

build/cmake/toolchains/mips32-linux-gcc.cmake

diff --git a/build/cmake/toolchains/mips32-linux-gcc.cmake b/build/cmake/toolchains/mips32-linux-gcc.cmake
index b452e36..af6f3de 100644
--- a/build/cmake/toolchains/mips32-linux-gcc.cmake
+++ b/build/cmake/toolchains/mips32-linux-gcc.cmake
@@ -8,7 +8,9 @@
 ## Media Patent License 1.0 was not distributed with this source code in the
 ## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
 ##
-if (NOT AOM_BUILD_CMAKE_TOOLCHAINS_MIPS32_LINUX_GCC_CMAKE_)
+if (AOM_BUILD_CMAKE_TOOLCHAINS_MIPS32_LINUX_GCC_CMAKE_)
+  return()
+endif ()  # AOM_BUILD_CMAKE_TOOLCHAINS_MIPS32_LINUX_GCC_CMAKE_
 set(AOM_BUILD_CMAKE_TOOLCHAINS_MIPS32_LINUX_GCC_CMAKE_ 1)
 
 set(CMAKE_SYSTEM_NAME "Linux")
@@ -71,5 +73,3 @@
 endif ()
 
 set(CONFIG_RUNTIME_CPU_DETECT 0 CACHE NUMBER "" FORCE)
-
-endif ()  # AOM_BUILD_CMAKE_TOOLCHAINS_MIPS32_LINUX_GCC_CMAKE_

build/cmake/toolchains/mips64-linux-gcc.cmake

diff --git a/build/cmake/toolchains/mips64-linux-gcc.cmake b/build/cmake/toolchains/mips64-linux-gcc.cmake
index 0b63d77..a5a02f2 100644
--- a/build/cmake/toolchains/mips64-linux-gcc.cmake
+++ b/build/cmake/toolchains/mips64-linux-gcc.cmake
@@ -8,7 +8,9 @@
 ## Media Patent License 1.0 was not distributed with this source code in the
 ## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
 ##
-if (NOT AOM_BUILD_CMAKE_TOOLCHAINS_MIPS64_LINUX_GCC_CMAKE_)
+if (AOM_BUILD_CMAKE_TOOLCHAINS_MIPS64_LINUX_GCC_CMAKE_)
+  return()
+endif ()  # AOM_BUILD_CMAKE_TOOLCHAINS_MIPS64_LINUX_GCC_CMAKE_
 set(AOM_BUILD_CMAKE_TOOLCHAINS_MIPS64_LINUX_GCC_CMAKE_ 1)
 
 set(CMAKE_SYSTEM_NAME "Linux")
@@ -48,5 +50,3 @@
 endif ()
 
 set(CONFIG_RUNTIME_CPU_DETECT 0 CACHE NUMBER "" FORCE)
-
-endif ()  # AOM_BUILD_CMAKE_TOOLCHAINS_MIPS64_LINUX_GCC_CMAKE_

build/cmake/toolchains/ppc-linux-gcc.cmake

diff --git a/build/cmake/toolchains/ppc-linux-gcc.cmake b/build/cmake/toolchains/ppc-linux-gcc.cmake
index c7a0364..e16ac7d 100644
--- a/build/cmake/toolchains/ppc-linux-gcc.cmake
+++ b/build/cmake/toolchains/ppc-linux-gcc.cmake
@@ -8,7 +8,9 @@
 ## Media Patent License 1.0 was not distributed with this source code in the
 ## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
 ##
-if (NOT AOM_BUILD_CMAKE_TOOLCHAINS_PPC_LINUX_GCC_CMAKE_)
+if (AOM_BUILD_CMAKE_TOOLCHAINS_PPC_LINUX_GCC_CMAKE_)
+  return()
+endif ()  # AOM_BUILD_CMAKE_TOOLCHAINS_PPC_LINUX_GCC_CMAKE_
 set(AOM_BUILD_CMAKE_TOOLCHAINS_PPC_LINUX_GCC_CMAKE_ 1)
 
 set(CMAKE_SYSTEM_NAME "Linux")
@@ -24,5 +26,3 @@
 set(CMAKE_SYSTEM_PROCESSOR "ppc")
 
 set(CONFIG_RUNTIME_CPU_DETECT 0 CACHE NUMBER "")
-
-endif ()  # AOM_BUILD_CMAKE_TOOLCHAINS_PPC_LINUX_GCC_CMAKE_

build/cmake/toolchains/x86-ios-simulator.cmake

diff --git a/build/cmake/toolchains/x86-ios-simulator.cmake b/build/cmake/toolchains/x86-ios-simulator.cmake
index 295156c..842fca0 100644
--- a/build/cmake/toolchains/x86-ios-simulator.cmake
+++ b/build/cmake/toolchains/x86-ios-simulator.cmake
@@ -8,7 +8,9 @@
 ## Media Patent License 1.0 was not distributed with this source code in the
 ## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
 ##
-if (NOT AOM_BUILD_CMAKE_TOOLCHAINS_X86_IOS_SIMULATOR_CMAKE_)
+if (AOM_BUILD_CMAKE_TOOLCHAINS_X86_IOS_SIMULATOR_CMAKE_)
+  return()
+endif ()  # AOM_BUILD_CMAKE_TOOLCHAINS_X86_IOS_SIMULATOR_CMAKE_
 set(AOM_BUILD_CMAKE_TOOLCHAINS_X86_IOS_SIMULATOR_CMAKE_ 1)
 
 if (XCODE)
@@ -23,5 +25,3 @@
 set(CONFIG_PIC 1 CACHE NUMBER "")
 
 include("${CMAKE_CURRENT_LIST_DIR}/ios-simulator-common.cmake")
-
-endif ()  # AOM_BUILD_CMAKE_TOOLCHAINS_X86_IOS_SIMULATOR_CMAKE_

build/cmake/toolchains/x86-linux.cmake

diff --git a/build/cmake/toolchains/x86-linux.cmake b/build/cmake/toolchains/x86-linux.cmake
index 42cc614..9695da6 100644
--- a/build/cmake/toolchains/x86-linux.cmake
+++ b/build/cmake/toolchains/x86-linux.cmake
@@ -8,12 +8,12 @@
 ## Media Patent License 1.0 was not distributed with this source code in the
 ## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
 ##
-if (NOT AOM_BUILD_CMAKE_TOOLCHAINS_X86_LINUX_CMAKE_)
+if (AOM_BUILD_CMAKE_TOOLCHAINS_X86_LINUX_CMAKE_)
+  return()
+endif ()  # AOM_BUILD_CMAKE_TOOLCHAINS_X86_LINUX_CMAKE_
 set(AOM_BUILD_CMAKE_TOOLCHAINS_X86_LINUX_CMAKE_ 1)
 
 set(CMAKE_SYSTEM_PROCESSOR "x86")
 set(CMAKE_SYSTEM_NAME "Linux")
 set(CMAKE_C_COMPILER_ARG1 "-m32")
 set(CMAKE_CXX_COMPILER_ARG1 "-m32")
-
-endif ()  # AOM_BUILD_CMAKE_TOOLCHAINS_X86_LINUX_CMAKE_

build/cmake/toolchains/x86-mingw-gcc.cmake

diff --git a/build/cmake/toolchains/x86-mingw-gcc.cmake b/build/cmake/toolchains/x86-mingw-gcc.cmake
index bdd3fa5..caf87db 100644
--- a/build/cmake/toolchains/x86-mingw-gcc.cmake
+++ b/build/cmake/toolchains/x86-mingw-gcc.cmake
@@ -8,7 +8,9 @@
 ## Media Patent License 1.0 was not distributed with this source code in the
 ## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
 ##
-if (NOT AOM_BUILD_CMAKE_TOOLCHAINS_X86_MINGW_GCC_CMAKE_)
+if (AOM_BUILD_CMAKE_TOOLCHAINS_X86_MINGW_GCC_CMAKE_)
+  return()
+endif ()  # AOM_BUILD_CMAKE_TOOLCHAINS_X86_MINGW_GCC_CMAKE_
 set(AOM_BUILD_CMAKE_TOOLCHAINS_X86_MINGW_GCC_CMAKE_ 1)
 
 set(CMAKE_SYSTEM_PROCESSOR "x86")
@@ -25,5 +27,3 @@
 
 # Disable the use of the gtest's CMake support.
 set(AOM_DISABLE_GTEST_CMAKE 1)
-
-endif ()  # AOM_BUILD_CMAKE_TOOLCHAINS_X86_MINGW_GCC_CMAKE_

build/cmake/toolchains/x86_64-ios-simulator.cmake

diff --git a/build/cmake/toolchains/x86_64-ios-simulator.cmake b/build/cmake/toolchains/x86_64-ios-simulator.cmake
index 884540a..d76cc00 100644
--- a/build/cmake/toolchains/x86_64-ios-simulator.cmake
+++ b/build/cmake/toolchains/x86_64-ios-simulator.cmake
@@ -8,7 +8,9 @@
 ## Media Patent License 1.0 was not distributed with this source code in the
 ## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
 ##
-if (NOT AOM_BUILD_CMAKE_TOOLCHAINS_X86_64_IOS_SIMULATOR_CMAKE_)
+if (AOM_BUILD_CMAKE_TOOLCHAINS_X86_64_IOS_SIMULATOR_CMAKE_)
+  return()
+endif ()  # AOM_BUILD_CMAKE_TOOLCHAINS_X86_64_IOS_SIMULATOR_CMAKE_
 set(AOM_BUILD_CMAKE_TOOLCHAINS_X86_64_IOS_SIMULATOR_CMAKE_ 1)
 
 if (XCODE)
@@ -20,5 +22,3 @@
 set(CMAKE_OSX_ARCHITECTURES "x86_64")
 
 include("${CMAKE_CURRENT_LIST_DIR}/ios-simulator-common.cmake")
-
-endif ()  # AOM_BUILD_CMAKE_TOOLCHAINS_X86_64_IOS_SIMULATOR_CMAKE_

build/cmake/toolchains/x86_64-mingw-gcc.cmake

diff --git a/build/cmake/toolchains/x86_64-mingw-gcc.cmake b/build/cmake/toolchains/x86_64-mingw-gcc.cmake
index be94332..cd1618a 100644
--- a/build/cmake/toolchains/x86_64-mingw-gcc.cmake
+++ b/build/cmake/toolchains/x86_64-mingw-gcc.cmake
@@ -8,7 +8,9 @@
 ## Media Patent License 1.0 was not distributed with this source code in the
 ## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
 ##
-if (NOT AOM_BUILD_CMAKE_TOOLCHAINS_X86_64_MINGW_GCC_CMAKE_)
+if (AOM_BUILD_CMAKE_TOOLCHAINS_X86_64_MINGW_GCC_CMAKE_)
+  return()
+endif ()  # AOM_BUILD_CMAKE_TOOLCHAINS_X86_64_MINGW_GCC_CMAKE_
 set(AOM_BUILD_CMAKE_TOOLCHAINS_X86_64_MINGW_GCC_CMAKE_ 1)
 
 set(CMAKE_SYSTEM_PROCESSOR "x86_64")
@@ -23,5 +25,3 @@
 
 # Disable the use of the gtest's CMake support.
 set(AOM_DISABLE_GTEST_CMAKE 1)
-
-endif ()  # AOM_BUILD_CMAKE_TOOLCHAINS_X86_64_MINGW_GCC_CMAKE_

build/cmake/util.cmake

diff --git a/build/cmake/util.cmake b/build/cmake/util.cmake
index bbb6992..1f74f5c 100644
--- a/build/cmake/util.cmake
+++ b/build/cmake/util.cmake
@@ -8,7 +8,9 @@
 ## Media Patent License 1.0 was not distributed with this source code in the
 ## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
 ##
-if (NOT AOM_BUILD_CMAKE_UTIL_CMAKE_)
+if (AOM_BUILD_CMAKE_UTIL_CMAKE_)
+  return()
+endif()  # AOM_BUILD_CMAKE_UTIL_CMAKE_
 set(AOM_BUILD_CMAKE_UTIL_CMAKE_ 1)
 
 # Creates dummy source file in $AOM_CONFIG_DIR named $basename.$extension and
@@ -80,5 +82,3 @@
   endif ()
 endfunction ()
 
-endif()  # AOM_BUILD_CMAKE_UTIL_CMAKE_
-

docs.cmake

diff --git a/docs.cmake b/docs.cmake
index 78281f2..6f14cb4 100644
--- a/docs.cmake
+++ b/docs.cmake
@@ -8,7 +8,9 @@
 ## Media Patent License 1.0 was not distributed with this source code in the
 ## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
 ##
-if (NOT AOM_DOCS_CMAKE_)
+if (AOM_DOCS_CMAKE_)
+  return()
+endif ()  # AOM_DOCS_CMAKE_
 set(AOM_DOCS_CMAKE_ 1)
 
 cmake_minimum_required(VERSION 3.5)
@@ -233,5 +235,3 @@
                              ${AOM_DOXYGEN_EXAMPLE_SOURCES}
                              "${AOM_DOXYGEN_CONFIG_TEMPLATE}")
 endfunction ()
-
-endif ()  # AOM_DOCS_CMAKE_

test/test.cmake

diff --git a/test/test.cmake b/test/test.cmake
index 0a11e29..d9d0ec1 100644
--- a/test/test.cmake
+++ b/test/test.cmake
@@ -8,7 +8,9 @@
 ## Media Patent License 1.0 was not distributed with this source code in the
 ## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
 ##
-if (NOT AOM_TEST_TEST_CMAKE_)
+if (AOM_TEST_TEST_CMAKE_)
+  return()
+endif ()  # AOM_TEST_TEST_CMAKE_
 set(AOM_TEST_TEST_CMAKE_ 1)
 
 include(FindPythonInterp)
@@ -510,5 +512,3 @@
     endforeach ()
   endforeach ()
 endfunction ()
-
-endif ()  # AOM_TEST_TEST_CMAKE_