diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
index 9181c86725..a20e5bafee 100644
--- a/.github/workflows/linux.yml
+++ b/.github/workflows/linux.yml
@@ -246,7 +246,7 @@ jobs:
         if: success() && matrix.type == 'apps'
         run: |
           export CFLAGS="-O3"
-          export CXXFLAGS="-O3"
+          export CXXFLAGS="-O3 -std=c++11"
           export LDFLAGS="-static-libstdc++ -s"
           export RELEASE_ARCH=x86_64
           ./configure --enable-apps --enable-apps-vbox --disable-server --disable-client --disable-manager
@@ -256,7 +256,7 @@ jobs:
         if: success() && matrix.type == 'apps-x86'
         run: |
           export CFLAGS="-O3 -m32"
-          export CXXFLAGS="-O3 -m32"
+          export CXXFLAGS="-O3 -m32 -std=c++11"
           export LDFLAGS="-static-libstdc++ -s -m32"
           export RELEASE_ARCH=i686
           ./configure --enable-apps --enable-apps-vbox --disable-server --disable-client --disable-manager --host=i686-linux-gnu
diff --git a/linux/arm64/build_curl_arm64.sh b/linux/arm64/build_curl_arm64.sh
index 4e79a03006..ccceef23b5 100755
--- a/linux/arm64/build_curl_arm64.sh
+++ b/linux/arm64/build_curl_arm64.sh
@@ -25,7 +25,7 @@ export CC=aarch64-linux-gnu-gcc
 export CXX=aarch64-linux-gnu-g++
 export LD=aarch64-linux-gnu-ld
 export CFLAGS="--sysroot=$TCSYSROOT -I$TCINCLUDES/include -march=armv8-a -O3"
-export CXXFLAGS="--sysroot=$TCSYSROOT -I$TCINCLUDES/include -march=armv8-a -O3"
+export CXXFLAGS="--sysroot=$TCSYSROOT -I$TCINCLUDES/include -march=armv8-a -O3 -std=c++11"
 export LDFLAGS="-L$TCSYSROOT/usr/lib -L$TCINCLUDES/lib -march=armv8-a -latomic -static-libstdc++"
 
 MAKE_FLAGS=""
diff --git a/linux/arm64/build_example_arm64.sh b/linux/arm64/build_example_arm64.sh
index dbaa0ee01a..b4b1c99df9 100755
--- a/linux/arm64/build_example_arm64.sh
+++ b/linux/arm64/build_example_arm64.sh
@@ -26,7 +26,7 @@ export CC=aarch64-linux-gnu-gcc
 export CXX=aarch64-linux-gnu-g++
 export LD=aarch64-linux-gnu-ld
 export CFLAGS="--sysroot=$TCSYSROOT -I$TCINCLUDES/include -march=armv8-a -O3 -I$BOINC -I$BOINC_LIB_DIR -I$BOINC_API_DIR -I$BOINC_ZIP_DIR"
-export CXXFLAGS="--sysroot=$TCSYSROOT -I$TCINCLUDES/include -march=armv8-a -O3 -I$BOINC -I$BOINC_LIB_DIR -I$BOINC_API_DIR -I$BOINC_ZIP_DIR"
+export CXXFLAGS="--sysroot=$TCSYSROOT -I$TCINCLUDES/include -march=armv8-a -O3 -I$BOINC -I$BOINC_LIB_DIR -I$BOINC_API_DIR -I$BOINC_ZIP_DIR -std=c++11"
 export LDFLAGS="-L$TCSYSROOT/usr/lib -L$TCINCLUDES/lib -march=armv8-a -latomic -static-libstdc++"
 
 CONFIG_FLAGS="--with-ssl=$TCINCLUDES --with-libcurl=$TCINCLUDES"
diff --git a/linux/arm64/build_libraries_arm64.sh b/linux/arm64/build_libraries_arm64.sh
index fb390889dd..0092cd59de 100755
--- a/linux/arm64/build_libraries_arm64.sh
+++ b/linux/arm64/build_libraries_arm64.sh
@@ -21,7 +21,7 @@ export CC=aarch64-linux-gnu-gcc
 export CXX=aarch64-linux-gnu-g++
 export LD=aarch64-linux-gnu-ld
 export CFLAGS="--sysroot=$TCSYSROOT -march=armv8-a -O3"
-export CXXFLAGS="--sysroot=$TCSYSROOT -march=armv8-a -O3"
+export CXXFLAGS="--sysroot=$TCSYSROOT -march=armv8-a -O3 -std=c++11"
 export LDFLAGS="-L$TCSYSROOT/usr/lib -L$TCINCLUDES/lib -march=armv8-a -static-libstdc++ -static"
 
 MAKE_FLAGS=""
diff --git a/linux/arm64/build_openssl_arm64.sh b/linux/arm64/build_openssl_arm64.sh
index 8fbb795469..9b48d3c9c5 100755
--- a/linux/arm64/build_openssl_arm64.sh
+++ b/linux/arm64/build_openssl_arm64.sh
@@ -25,7 +25,7 @@ export CC=aarch64-linux-gnu-gcc
 export CXX=aarch64-linux-gnu-g++
 export LD=aarch64-linux-gnu-ld
 export CFLAGS="--sysroot=$TCSYSROOT -march=armv8-a -O3"
-export CXXFLAGS="--sysroot=$TCSYSROOT -march=armv8-a -O3"
+export CXXFLAGS="--sysroot=$TCSYSROOT -march=armv8-a -O3 -std=c++11"
 export LDFLAGS="-L$TCSYSROOT/usr/lib -L$TCINCLUDES/lib -march=armv8-a -latomic -static-libstdc++"
 
 MAKE_FLAGS=""