1 diff --git a/cmake/modules/BuildBoost.cmake b/cmake/modules/BuildBoost.cmake
2 index d6572115a4..cc0bdddc9f 100644
3 --- a/cmake/modules/BuildBoost.cmake
4 +++ b/cmake/modules/BuildBoost.cmake
5 @@ -62,7 +62,7 @@ function(do_build_boost version)
7 list(APPEND boost_features "address-model=32")
9 - set(BOOST_CXXFLAGS "-fPIC -w") # check on arm, etc <---XXX
10 + set(BOOST_CXXFLAGS "${CMAKE_CXX_FLAGS} -fPIC -w") # check on arm, etc <---XXX
11 list(APPEND boost_features "cxxflags=${BOOST_CXXFLAGS}")
13 list(FIND Boost_BUILD_COMPONENTS "python" with_python)
14 diff --git a/src/compressor/zstd/CMakeLists.txt b/src/compressor/zstd/CMakeLists.txt
15 index 5a80aa539c..8d6ff5c8f0 100644
16 --- a/src/compressor/zstd/CMakeLists.txt
17 +++ b/src/compressor/zstd/CMakeLists.txt
21 # libzstd - build it statically
22 -set(ZSTD_C_FLAGS "-fPIC -Wno-unused-variable -O3")
23 +set(ZSTD_C_FLAGS "-fPIC -Wno-unused-variable $ENV{CFLAGS} -O3")
25 include(ExternalProject)
26 ExternalProject_Add(zstd_ext