diff --git a/CMakeLists.txt b/CMakeLists.txt
index 64f8445e8..8b9ffd7fc 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -329,7 +329,7 @@ set(GNSSSDR_GCC_MIN_VERSION "4.7.2")
 set(GNSSSDR_CLANG_MIN_VERSION "3.4.0")
 set(GNSSSDR_APPLECLANG_MIN_VERSION "500")
 set(GNSSSDR_GNURADIO_MIN_VERSION "3.7.3")
-set(GNSSSDR_BOOST_MIN_VERSION "1.54")
+set(GNSSSDR_BOOST_MIN_VERSION "1.53")
 set(GNSSSDR_PYTHON_MIN_VERSION "2.7")
 set(GNSSSDR_PYTHON3_MIN_VERSION "3.4")
 set(GNSSSDR_MAKO_MIN_VERSION "0.4.2")
@@ -490,7 +490,7 @@ if(UNIX AND EXISTS "/usr/lib64")
     list(APPEND BOOST_LIBRARYDIR "/usr/lib64") # Fedora 64-bit fix
 endif()
 set(Boost_ADDITIONAL_VERSIONS
-    "1.54.0" "1.54"
+    "1.53.0" "1.53" "1.54.0" "1.54"
     "1.55.0" "1.55" "1.56.0" "1.56" "1.57.0" "1.57" "1.58.0" "1.58" "1.59.0" "1.59"
     "1.60.0" "1.60" "1.61.0" "1.61" "1.62.0" "1.62" "1.63.0" "1.63" "1.64.0" "1.64"
     "1.65.0" "1.65" "1.66.0" "1.66" "1.67.0" "1.67" "1.68.0" "1.68" "1.69.0" "1.69"
diff --git a/src/algorithms/PVT/libs/CMakeLists.txt b/src/algorithms/PVT/libs/CMakeLists.txt
index 8aa17735a..9b9237128 100644
--- a/src/algorithms/PVT/libs/CMakeLists.txt
+++ b/src/algorithms/PVT/libs/CMakeLists.txt
@@ -77,7 +77,7 @@ target_include_directories(pvt_lib
         ${CMAKE_SOURCE_DIR}/src/algorithms/libs/rtklib
 )
 
-target_compile_definitions(pvt_lib PUBLIC -DGNSS_SDR_VERSION="${VERSION}")
+target_compile_definitions(pvt_lib PRIVATE -DGNSS_SDR_VERSION="${VERSION}")
 
 set_property(TARGET pvt_lib APPEND PROPERTY INTERFACE_INCLUDE_DIRECTORIES
     $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
diff --git a/src/algorithms/libs/CMakeLists.txt b/src/algorithms/libs/CMakeLists.txt
index 6efef8079..d4c0e73fd 100644
--- a/src/algorithms/libs/CMakeLists.txt
+++ b/src/algorithms/libs/CMakeLists.txt
@@ -129,10 +129,6 @@ target_compile_definitions(gnss_sp_libs
     PUBLIC -DGNSSSDR_INSTALL_DIR="${CMAKE_INSTALL_PREFIX}"
 )
 
-if(${GFLAGS_GREATER_20})
-    target_compile_definitions(gnss_sp_libs PUBLIC -DGFLAGS_GREATER_2_0=1)
-endif()
-
 set_property(TARGET gnss_sp_libs
     APPEND PROPERTY INTERFACE_INCLUDE_DIRECTORIES
         $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
@@ -153,11 +149,11 @@ target_link_libraries(gnss_sdr_flags
 )
 
 if(${GFLAGS_GREATER_20})
-    target_compile_definitions(gnss_sdr_flags PUBLIC -DGFLAGS_GREATER_2_0=1)
+    target_compile_definitions(gnss_sdr_flags PRIVATE -DGFLAGS_GREATER_2_0=1)
 endif()
 
 target_compile_definitions(gnss_sdr_flags
-    PUBLIC -DGNSSSDR_INSTALL_DIR="${CMAKE_INSTALL_PREFIX}"
+    PRIVATE -DGNSSSDR_INSTALL_DIR="${CMAKE_INSTALL_PREFIX}"
 )
 
 set_property(TARGET gnss_sdr_flags
diff --git a/src/algorithms/libs/rtklib/CMakeLists.txt b/src/algorithms/libs/rtklib/CMakeLists.txt
index 22d3b198e..c1808b1b8 100644
--- a/src/algorithms/libs/rtklib/CMakeLists.txt
+++ b/src/algorithms/libs/rtklib/CMakeLists.txt
@@ -81,8 +81,6 @@ target_link_libraries(rtklib_lib
         ${MAC_LIBRARIES}
 )
 
-target_compile_definitions(rtklib_lib PUBLIC -DGNSS_SDR_VERSION="${VERSION}")
-
 set_property(TARGET rtklib_lib
     APPEND PROPERTY INTERFACE_INCLUDE_DIRECTORIES
         $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>