fixup: Build couch_js for redhat linux

[jiangphcn]

Overview

When building couch_js in RHEL, there is one error occurring with "undefined reference to symbol '_ZTVN10__cxxabiv117__class_type_infoE@@CXXABI_1.3'". This commit is to adjust binding library to address this issue.

Compiling priv/couch_ejson_compare/couch_ejson_compare.c
/usr/bin/ld: priv/couch_js/60/main.o: undefined reference to symbol '_ZTVN10__cxxabiv117__class_type_infoE@@CXXABI_1.3'
//usr/lib64/libstdc++.so.6: error adding symbols: DSO missing from command line
collect2: error: ld returned 1 exit status
ERROR: sh(cc priv/couch_js/60/http.o priv/couch_js/60/main.o priv/couch_js/60/utf8.o priv/couch_js/60/util.o -L/usr/local/lib -std=c++14 -lmozjs-60 -lm   -L"/usr/local/lib/erlang/lib/erl_interface-3.10.2.2/lib" -lerl_interface -lei -o priv/couchjs)
failed with return code 1 and the following output:
/usr/bin/ld: priv/couch_js/60/main.o: undefined reference to symbol '_ZTVN10__cxxabiv117__class_type_infoE@@CXXABI_1.3'
//usr/lib64/libstdc++.so.6: error adding symbols: DSO missing from command line
collect2: error: ld returned 1 exit status

Testing recommendations

make, and make fdb-check in RHEL

Related Issues or Pull Requests

Checklist

• Code is written and works correctly
• Changes are covered by tests
• Any new configurable parameters are documented in rel/overlay/etc/default.ini
• A PR for documentation changes has been made in https://github.com/apache/couchdb-documentation

[wohali]

@jiangphcn thanks for this, what happens if we just add -lstdc++ to the {unix, _} case? Does it break other Linux builds? Or, is there a reason the -std=c++14 line won't work on RHEL?

[jiangphcn]

@wohali thanks for your question and suggestion. I tested with Centos and Debian, and it will not break if we just add -lstdc++ to the {unix, _} case. I change accordingly. Could you please check again?