From 51a64ba295cf9d53e420cb033267afb9775529ea Mon Sep 17 00:00:00 2001
From: Yan Shiguang <bluebore.cn@gmail.com>
Date: Mon, 19 Jun 2017 10:15:53 +0800
Subject: [PATCH] Compatible with gcc4.4 (#904)

(#902)
---
 .travis.yml |  1 +
 Makefile    |  2 +-
 build.sh    | 27 ++++++++++++++++++++++++++-
 3 files changed, 28 insertions(+), 2 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index dec729bb..357ca978 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -66,6 +66,7 @@ before_script:
     - echo 'TCMALLOC_PATH=./thirdparty' >> depends.mk
     - echo 'COMMON_PATH=./common/output' >> depends.mk
     - echo 'LEVELDB_PATH=./thirdparty' >> depends.mk
+    - echo 'STD_FLAG=c++11' >> depends.mk
 
 script: make -j4 && make check && make test
 
diff --git a/Makefile b/Makefile
index 3b615798..7af11c51 100644
--- a/Makefile
+++ b/Makefile
@@ -25,7 +25,7 @@ LDFLAGS = -L$(PBRPC_PATH)/lib -lsofa-pbrpc \
 SO_LDFLAGS += -rdynamic $(DEPS_LDPATH) $(SO_DEPS_LDFLAGS) -lpthread -lrt -lz -ldl \
 	      -shared -Wl,--version-script,so-version-script # hide symbol of thirdparty libs
 
-CXXFLAGS = -std=c++11 -Wall -fPIC $(OPT)
+CXXFLAGS = -std=$(STD_FLAG) -Wall -fPIC $(OPT)
 FUSEFLAGS = -D_FILE_OFFSET_BITS=64 -DFUSE_USE_VERSION=26 -I$(FUSE_PATH)/include
 FUSE_LL_FLAGS = -D_FILE_OFFSET_BITS=64 -DFUSE_USE_VERSION=26 -I$(FUSE_LL_PATH)/include
 
diff --git a/build.sh b/build.sh
index 2a30438f..04972ac7 100755
--- a/build.sh
+++ b/build.sh
@@ -68,6 +68,7 @@ if [ ! -f "${FLAG_DIR}/snappy_1_1_1" ] \
     || [ ! -f "${DEPS_PREFIX}/lib/libsnappy.a" ] \
     || [ ! -f "${DEPS_PREFIX}/include/snappy.h" ]; then
     cd snappy-1.1.1
+    autoreconf -ivf
     ./configure ${DEPS_CONFIG}
     make -j4
     make install
@@ -153,6 +154,22 @@ if [ ! -f "${FLAG_DIR}/gperftools_2_2_1" ] \
     touch "${FLAG_DIR}/gperftools_2_2_1"
 fi
 
+# test c++11
+set +e
+if test -z "$CXX"; then
+    CXX=g++
+fi
+
+$CXX --std=c++11 -x c++ - -o teststd.out 2>/dev/null <<EOF
+int main() {}
+EOF
+
+if [ "$?" = 0 ]; then
+    STD_FLAG=c++11
+fi
+rm -rf teststd.out
+set -e
+
 # common
 if [ ! -f "${FLAG_DIR}/common" ] \
     || [ ! -f "${DEPS_PREFIX}/lib/libcommon.a" ]; then
@@ -160,7 +177,9 @@ if [ ! -f "${FLAG_DIR}/common" ] \
     git clone -b cpp11 https://github.com/baidu/common
     cd common
     sed -i 's/^PREFIX=.*/PREFIX=..\/..\/thirdparty/' config.mk
-    sed -i '/^INCLUDE_PATH=*/s/$/ -I..\/..\/thirdparty\/boost_1_57_0/g' Makefile
+    if test -z "$STD_FLAG"; then
+        sed -i 's/-std=c++11/-std=c++0x/g' Makefile
+    fi
     make -j4
     make install
     cd -
@@ -185,6 +204,12 @@ echo "GTEST_PATH=./thirdparty" >> depends.mk
 echo "COMMON_PATH=./thirdparty" >> depends.mk
 echo "TCMALLOC_PATH=./thirdparty" >> depends.mk
 
+if test -z "$STD_FLAG"; then
+    echo "STD_FLAG=c++0x" >> depends.mk
+else
+    echo "STD_FLAG=c++11" >> depends.mk
+fi
+
 ########################################
 # build tera
 ########################################