diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2b10ef346..9be84be8d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -270,7 +270,19 @@ if(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
      endif(${DARWIN_VERSION} MATCHES "10")
 endif(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
 
-#select the release build type by default to get optimization flags
+# Define extra build types and select Release by default to get optimization flags
+include(GnsssdrBuildTypes)
+# Available options:
+#  - None: nothing set
+#  - Debug: -O2 -g
+#  - Release: -O3
+#  - RelWithDebInfo: -O3 -g
+#  - MinSizeRel: -Os
+#  - Coverage: -Wall -pedantic -pthread -g -O0 -fprofile-arcs -ftest-coverage
+#  - NoOptWithASM: -O0 -g -save-temps
+#  - O2WithASM: -O2 -g -save-temps
+#  - O3WithASM: -O3 -g -save-temps
+#  - ASAN: -Wall -Wextra -g -O2 -fsanitize=address -fno-omit-frame-pointer
 if(NOT CMAKE_BUILD_TYPE)
      if(ENABLE_GPERFTOOLS OR ENABLE_GPROF)
          set(CMAKE_BUILD_TYPE "RelWithDebInfo")
@@ -282,11 +294,9 @@ if(NOT CMAKE_BUILD_TYPE)
 else(NOT CMAKE_BUILD_TYPE)
      message(STATUS "Build type set to ${CMAKE_BUILD_TYPE}.")
 endif(NOT CMAKE_BUILD_TYPE)
+GNSSSDR_CHECK_BUILD_TYPE(${CMAKE_BUILD_TYPE})
 set(CMAKE_BUILD_TYPE ${CMAKE_BUILD_TYPE} CACHE STRING "")
 
-# Append -O2 optimization flag for Debug builds
-set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -O2")
-
 # allow 'large' files in 32 bit builds
 if(UNIX)
     add_definitions( -D_LARGEFILE_SOURCE
diff --git a/cmake/Modules/GnsssdrBuildTypes.cmake b/cmake/Modules/GnsssdrBuildTypes.cmake
new file mode 100644
index 000000000..f12ea7e24
--- /dev/null
+++ b/cmake/Modules/GnsssdrBuildTypes.cmake
@@ -0,0 +1,219 @@
+# Copyright (C) 2011-2018 (see AUTHORS file for a list of contributors)
+#
+# This file is part of GNSS-SDR.
+#
+# GNSS-SDR is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# GNSS-SDR is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNSS-SDR. If not, see <https://www.gnu.org/licenses/>.
+
+if(DEFINED __INCLUDED_GNSSSDR_BUILD_TYPES_CMAKE)
+    return()
+endif()
+set(__INCLUDED_GNSSSDR_BUILD_TYPES_CMAKE TRUE)
+
+# Standard CMake Build Types and their basic CFLAGS:
+#  - None: nothing set
+#  - Debug: -O2 -g
+#  - Release: -O3
+#  - RelWithDebInfo: -O3 -g
+#  - MinSizeRel: -Os
+
+# Additional Build Types, defined below:
+#  - NoOptWithASM: -O0 -g -save-temps
+#  - O2WithASM: -O2 -g -save-temps
+#  - O3WithASM: -O3 -g -save-temps
+
+# Defines the list of acceptable cmake build types. When adding a new
+# build type below, make sure to add it to this list.
+list(APPEND AVAIL_BUILDTYPES
+  None Debug Release RelWithDebInfo MinSizeRel
+  Coverage NoOptWithASM O2WithASM O3WithASM ASAN
+)
+
+########################################################################
+# GNSSSDR_CHECK_BUILD_TYPE(build type)
+#
+# Use this to check that the build type set in CMAKE_BUILD_TYPE on the
+# commandline is one of the valid build types used by this project. It
+# checks the value set in the cmake interface against the list of
+# known build types in AVAIL_BUILDTYPES. If the build type is found,
+# the function exits immediately. If nothing is found by the end of
+# checking all available build types, we exit with an error and list
+# the avialable build types.
+########################################################################
+function(GNSSSDR_CHECK_BUILD_TYPE settype)
+  string(TOUPPER ${settype} _settype)
+  foreach(btype ${AVAIL_BUILDTYPES})
+    string(TOUPPER ${btype} _btype)
+    if(${_settype} STREQUAL ${_btype})
+      return() # found it; exit cleanly
+    endif(${_settype} STREQUAL ${_btype})
+  endforeach(btype)
+  # Build type not found; error out
+  message(FATAL_ERROR "Build type '${settype}' not valid, must be one of: ${AVAIL_BUILDTYPES}")
+endfunction(GNSSSDR_CHECK_BUILD_TYPE)
+
+
+########################################################################
+# For GCC and Clang, we can set a build type:
+#
+# -DCMAKE_BUILD_TYPE=Coverage
+#
+# This type uses no optimization (-O0), outputs debug symbols (-g) and
+# outputs all intermediary files the build system produces, including
+# all assembly (.s) files. Look in the build directory for these
+# files.
+# NOTE: This is not defined on Windows systems.
+########################################################################
+if(NOT WIN32)
+  set(CMAKE_CXX_FLAGS_COVERAGE "-Wall -pedantic -pthread -g -O0 -fprofile-arcs -ftest-coverage" CACHE STRING
+    "Flags used by the C++ compiler during Coverage builds." FORCE)
+  set(CMAKE_C_FLAGS_COVERAGE "-Wall -pedantic -pthread -g -O0 -fprofile-arcs -ftest-coverage" CACHE STRING
+    "Flags used by the C compiler during Coverage builds." FORCE)
+  set(CMAKE_EXE_LINKER_FLAGS_COVERAGE
+    "-Wl" CACHE STRING
+    "Flags used for linking binaries during Coverage builds." FORCE)
+  set(CMAKE_SHARED_LINKER_FLAGS_COVERAGE
+    "-Wl" CACHE STRING
+    "Flags used by the shared lib linker during Coverage builds." FORCE)
+
+  MARK_AS_ADVANCED(
+    CMAKE_CXX_FLAGS_COVERAGE
+    CMAKE_C_FLAGS_COVERAGE
+    CMAKE_EXE_LINKER_FLAGS_COVERAGE
+    CMAKE_SHARED_LINKER_FLAGS_COVERAGE)
+endif(NOT WIN32)
+
+
+########################################################################
+# For GCC and Clang, we can set a build type:
+#
+# -DCMAKE_BUILD_TYPE=NoOptWithASM
+#
+# This type uses no optimization (-O0), outputs debug symbols (-g) and
+# outputs all intermediary files the build system produces, including
+# all assembly (.s) files. Look in the build directory for these
+# files.
+# NOTE: This is not defined on Windows systems.
+########################################################################
+if(NOT WIN32)
+  set(CMAKE_CXX_FLAGS_NOOPTWITHASM "-Wall -save-temps -g -O0" CACHE STRING
+    "Flags used by the C++ compiler during NoOptWithASM builds." FORCE)
+  set(CMAKE_C_FLAGS_NOOPTWITHASM "-Wall -save-temps -g -O0" CACHE STRING
+    "Flags used by the C compiler during NoOptWithASM builds." FORCE)
+  set(CMAKE_EXE_LINKER_FLAGS_NOOPTWITHASM
+    "-Wl" CACHE STRING
+    "Flags used for linking binaries during NoOptWithASM builds." FORCE)
+  set(CMAKE_SHARED_LINKER_FLAGS_NOOPTWITHASM
+    "-Wl" CACHE STRING
+    "Flags used by the shared lib linker during NoOptWithASM builds." FORCE)
+
+  MARK_AS_ADVANCED(
+    CMAKE_CXX_FLAGS_NOOPTWITHASM
+    CMAKE_C_FLAGS_NOOPTWITHASM
+    CMAKE_EXE_LINKER_FLAGS_NOOPTWITHASM
+    CMAKE_SHARED_LINKER_FLAGS_NOOPTWITHASM)
+endif(NOT WIN32)
+
+
+
+########################################################################
+# For GCC and Clang, we can set a build type:
+#
+# -DCMAKE_BUILD_TYPE=O2WithASM
+#
+# This type uses level 2 optimization (-O2), outputs debug symbols
+# (-g) and outputs all intermediary files the build system produces,
+# including all assembly (.s) files. Look in the build directory for
+# these files.
+# NOTE: This is not defined on Windows systems.
+########################################################################
+
+if(NOT WIN32)
+  set(CMAKE_CXX_FLAGS_O2WITHASM "-Wall -save-temps -g -O2" CACHE STRING
+    "Flags used by the C++ compiler during O2WithASM builds." FORCE)
+  set(CMAKE_C_FLAGS_O2WITHASM "-Wall -save-temps -g -O2" CACHE STRING
+    "Flags used by the C compiler during O2WithASM builds." FORCE)
+  set(CMAKE_EXE_LINKER_FLAGS_O2WITHASM
+    "-Wl" CACHE STRING
+    "Flags used for linking binaries during O2WithASM builds." FORCE)
+  set(CMAKE_SHARED_LINKER_FLAGS_O2WITHASM
+    "-Wl" CACHE STRING
+    "Flags used by the shared lib linker during O2WithASM builds." FORCE)
+
+  MARK_AS_ADVANCED(
+    CMAKE_CXX_FLAGS_O2WITHASM
+    CMAKE_C_FLAGS_O2WITHASM
+    CMAKE_EXE_LINKER_FLAGS_O2WITHASM
+    CMAKE_SHARED_LINKER_FLAGS_O2WITHASM)
+endif(NOT WIN32)
+
+
+########################################################################
+# For GCC and Clang, we can set a build type:
+#
+# -DCMAKE_BUILD_TYPE=O3WithASM
+#
+# This type uses level 3 optimization (-O3), outputs debug symbols
+# (-g) and outputs all intermediary files the build system produces,
+# including all assembly (.s) files. Look in the build directory for
+# these files.
+# NOTE: This is not defined on Windows systems.
+########################################################################
+
+if(NOT WIN32)
+  set(CMAKE_CXX_FLAGS_O3WITHASM "-Wall -save-temps -g -O3" CACHE STRING
+    "Flags used by the C++ compiler during O3WithASM builds." FORCE)
+  set(CMAKE_C_FLAGS_O3WITHASM "-Wall -save-temps -g -O3" CACHE STRING
+    "Flags used by the C compiler during O3WithASM builds." FORCE)
+  set(CMAKE_EXE_LINKER_FLAGS_O3WITHASM
+    "-Wl" CACHE STRING
+    "Flags used for linking binaries during O3WithASM builds." FORCE)
+  set(CMAKE_SHARED_LINKER_FLAGS_O3WITHASM
+    "-Wl" CACHE STRING
+    "Flags used by the shared lib linker during O3WithASM builds." FORCE)
+
+  MARK_AS_ADVANCED(
+    CMAKE_CXX_FLAGS_O3WITHASM
+    CMAKE_C_FLAGS_O3WITHASM
+    CMAKE_EXE_LINKER_FLAGS_O3WITHASM
+    CMAKE_SHARED_LINKER_FLAGS_O3WITHASM)
+endif(NOT WIN32)
+
+
+########################################################################
+# For GCC and Clang, we can set a build type:
+#
+# -DCMAKE_BUILD_TYPE=ASAN
+#
+# This type creates an address sanitized build (-fsanitize=address)
+# and defaults to the DebugParanoid linker flags.
+# NOTE: This is not defined on Windows systems.
+########################################################################
+if(NOT WIN32)
+  set(CMAKE_CXX_FLAGS_ASAN "-Wall -Wextra -g -O2 -fsanitize=address -fno-omit-frame-pointer" CACHE STRING
+    "Flags used by the C++ compiler during Address Sanitized builds." FORCE)
+  set(CMAKE_C_FLAGS_ASAN "-Wall -Wextra -g -O2 -fsanitize=address -fno-omit-frame-pointer" CACHE STRING
+    "Flags used by the C compiler during Address Sanitized builds." FORCE)
+  set(CMAKE_EXE_LINKER_FLAGS_ASAN
+    "-Wl" CACHE STRING
+    "Flags used for linking binaries during Address Sanitized builds." FORCE)
+  set(CMAKE_SHARED_LINKER_FLAGS_ASAN
+    "-Wl" CACHE STRING
+    "Flags used by the shared lib linker during Address Sanitized builds." FORCE)
+
+  MARK_AS_ADVANCED(
+    CMAKE_CXX_FLAGS_ASAN
+    CMAKE_C_FLAGS_ASAN
+    CMAKE_EXE_LINKER_FLAGS_ASAN
+    CMAKE_SHARED_LINKER_ASAN)
+endif(NOT WIN32)