Add CONFIG_GPROF support to CMake build.

Change-Id: Idadb45912a47657a1242d5c3528b79668e939b55

build/cmake/aom_config_defaults.cmake

diff --git a/build/cmake/aom_config_defaults.cmake b/build/cmake/aom_config_defaults.cmake
index cbc00c8..01bf39c 100644
--- a/build/cmake/aom_config_defaults.cmake
+++ b/build/cmake/aom_config_defaults.cmake
@@ -55,7 +55,6 @@
 set(CONFIG_DEPENDENCY_TRACKING 1 CACHE NUMBER "Deprecated flag.")
 set(CONFIG_EXPERIMENTAL 0 CACHE NUMBER "Deprecated flag.")
 set(CONFIG_EXTERNAL_BUILD 0 CACHE NUMBER "Deprecated flag.")
-set(CONFIG_GPROF 0 CACHE NUMBER "Deprecated flag.")
 set(CONFIG_INSTALL_BINS 0 CACHE NUMBER "Deprecated flag.")
 set(CONFIG_INSTALL_DOCS 0 CACHE NUMBER "Deprecated flag.")
 set(CONFIG_INSTALL_LIBS 0 CACHE NUMBER "Deprecated flag.")
@@ -73,6 +72,7 @@
 set(CONFIG_BIG_ENDIAN 0 CACHE NUMBER "Internal flag.")
 set(CONFIG_GCC 0 CACHE NUMBER "Building with GCC (detected).")
 set(CONFIG_GCOV 0 CACHE NUMBER "Enable gcov support.")
+set(CONFIG_GPROF 0 CACHE NUMBER "Enable gprof support.")
 set(CONFIG_LIBYUV 1 CACHE NUMBER "Enables libyuv scaling/conversion support.")
 set(CONFIG_MSVS 0 CACHE NUMBER "Building with MS Visual Studio (detected).")
 set(CONFIG_MULTITHREAD 1 CACHE NUMBER "Multithread support.")

build/cmake/aom_configure.cmake

diff --git a/build/cmake/aom_configure.cmake b/build/cmake/aom_configure.cmake
index dfb49de..4e10acc 100644
--- a/build/cmake/aom_configure.cmake
+++ b/build/cmake/aom_configure.cmake
@@ -296,6 +296,11 @@
   require_flag("-fprofile-arcs -ftest-coverage" YES)
 endif ()
 
+if (CONFIG_GPROF)
+  message("--- Testing for CONFIG_GPROF support.")
+  require_flag("-pg" YES)
+endif ()
+
 if (NOT MSVC)
   aom_push_var(CMAKE_REQUIRED_LIBRARIES "m")
   aom_check_c_compiles("fenv_check"