diff --git a/vars/vars-linux-clang b/vars/vars-linux-clang
index cb80ca20..96eb8d50 100644
--- a/vars/vars-linux-clang
+++ b/vars/vars-linux-clang
@@ -3,7 +3,7 @@ export JAVA_DIR=/usr/lib/jvm/java-7-openjdk-amd64
 export PLATFORM=linux
 export DEBUG_BUILD=0
 export OTHER_COMPILER_FLAGS="-Wno-unused-local-typedefs -Wno-unused-variable -Wno-shift-count-overflow -pthread"
-export CXX_COMPILER_FLAGS="-std=c++14 -stdlib=libc++"
+export CXX_COMPILER_FLAGS="-std=c++17 -stdlib=libc++"
 export LIB_OPT_LEVEL="-O3"
 export LIB_FPIC="-fPIC"
 export GPP_CMD=clang++
diff --git a/vars/vars-linux-clang-dbg b/vars/vars-linux-clang-dbg
index 322e2dd7..935abb1f 100644
--- a/vars/vars-linux-clang-dbg
+++ b/vars/vars-linux-clang-dbg
@@ -3,7 +3,7 @@ export JAVA_DIR=/usr/lib/jvm/java-7-openjdk-amd64
 export PLATFORM=linux
 export DEBUG_BUILD=1
 export OTHER_COMPILER_FLAGS="-ggdb -Wno-unused-local-typedefs -Wno-unused-variable -Wno-shift-count-overflow -pthread"
-export CXX_COMPILER_FLAGS="-std=c++14 -stdlib=libc++"
+export CXX_COMPILER_FLAGS="-std=c++17 -stdlib=libc++"
 export LIB_OPT_LEVEL="-O0"
 export LIB_FPIC="-fPIC"
 export GPP_CMD=clang++
diff --git a/vars/vars-linux-dbg b/vars/vars-linux-dbg
index 2772d0fe..5f404a37 100644
--- a/vars/vars-linux-dbg
+++ b/vars/vars-linux-dbg
@@ -3,7 +3,7 @@ export JAVA_DIR=/usr/lib/jvm/java-7-openjdk-amd64
 export PLATFORM=linux
 export DEBUG_BUILD=1
 export OTHER_COMPILER_FLAGS="-ggdb -Wno-unused-local-typedefs -Wno-unused-variable -Wno-shift-count-overflow -pthread"
-export CXX_COMPILER_FLAGS="-std=c++14"
+export CXX_COMPILER_FLAGS="-std=c++17"
 export LIB_OPT_LEVEL="-O0"
 export LIB_FPIC="-fPIC"
 export GPP_CMD=g++
diff --git a/vars/vars-linux-libcpp b/vars/vars-linux-libcpp
index e7585205..cb567f58 100644
--- a/vars/vars-linux-libcpp
+++ b/vars/vars-linux-libcpp
@@ -3,7 +3,7 @@ export JAVA_DIR=/usr/lib/jvm/java-7-openjdk-amd64
 export PLATFORM=linux
 export DEBUG_BUILD=0
 export OTHER_COMPILER_FLAGS="-Wno-unused-local-typedefs -Wno-unused-variable -Wno-shift-count-overflow -pthread"
-export CXX_COMPILER_FLAGS="-std=c++14 -stdlib=libc++"
+export CXX_COMPILER_FLAGS="-std=c++17 -stdlib=libc++"
 export LIB_OPT_LEVEL="-O3"
 export LIB_FPIC="-fPIC"
 export GPP_CMD=clang++
diff --git a/vars/vars-linux-libcpp-dbg b/vars/vars-linux-libcpp-dbg
index 9cbfc281..9a1b29c4 100644
--- a/vars/vars-linux-libcpp-dbg
+++ b/vars/vars-linux-libcpp-dbg
@@ -3,7 +3,7 @@ export JAVA_DIR=/usr/lib/jvm/java-7-openjdk-amd64
 export PLATFORM=linux
 export DEBUG_BUILD=1
 export OTHER_COMPILER_FLAGS="-ggdb -Wno-unused-local-typedefs -Wno-unused-variable -Wno-shift-count-overflow -pthread"
-export CXX_COMPILER_FLAGS="-std=c++14 -stdlib=libc++"
+export CXX_COMPILER_FLAGS="-std=c++17 -stdlib=libc++"
 export LIB_OPT_LEVEL="-O0"
 export LIB_FPIC="-fPIC"
 export GPP_CMD=clang++