diff --git a/extra/boost/PKGBUILD b/extra/boost/PKGBUILD
index a13135428..816418575 100644
--- a/extra/boost/PKGBUILD
+++ b/extra/boost/PKGBUILD
@@ -11,6 +11,7 @@
 #  - changed _bindir to .linuxarm from .linuxx86
 #  - build armv6h with -march=armv6k
 #  - specify arm architecture to b2 for aarch64
+#  - build armv5 with c++98, can't support c++11 code in boost
 
 pkgbase=boost
 pkgname=('boost-libs' 'boost')
@@ -43,6 +44,12 @@ build() {
    install -dm755 "${_stagedir}"/share/boostbook
    cp -a tools/boostbook/{xsl,dtd} "${_stagedir}"/share/boostbook/
 
+   if [[ $CARCH == "arm" ]]; then
+      STD="c++98"
+   else
+      STD="c++14"
+   fi
+
    # default "minimal" install: "release link=shared,static
    # runtime-link=shared threading=single,multi"
    # --layout=tagged will add the "-mt" suffix for multithreaded libraries
@@ -59,7 +66,7 @@ build() {
       toolset=gcc \
       python=2.7 \
       cflags="${CPPFLAGS} ${CFLAGS} -fPIC -O3" \
-      cxxflags="${CPPFLAGS} ${CXXFLAGS} -std=c++14 -fPIC -O3" \
+      cxxflags="${CPPFLAGS} ${CXXFLAGS} -std=${STD} -fPIC -O3" \
       linkflags="${LDFLAGS}" \
       --layout=system \
       ${JOBS} \
@@ -85,7 +92,7 @@ build() {
       toolset=gcc \
       python=3.6 \
       cflags="${CPPFLAGS} ${CFLAGS} -fPIC -O3" \
-      cxxflags="${CPPFLAGS} ${CXXFLAGS} -std=c++14 -fPIC -O3" \
+      cxxflags="${CPPFLAGS} ${CXXFLAGS} -std=${STD} -fPIC -O3" \
       linkflags="${LDFLAGS}" \
       --layout=system \
       ${JOBS} \