add ycm_conf. and better build

tensorpack/user_ops/.ycm_extra_conf.py

+import tensorflow as tf
+
+flags = [
+    '-Wall',
+    '-Wextra',
+    '-Werror',
+    '-Wno-long-long',
+    '-Wno-variadic-macros',
+    '-fexceptions',
+    '-std=c++11',
+    '-x',
+    'c++',
+
+    '-isystem',
+    tf.sysconfig.get_include()
+]
+
+
+def FlagsForFile(filename, **kwargs):
+    return {
+        'flags': flags,
+        'do_cache': True
+    }

tensorpack/user_ops/Makefile

@@ -9,19 +9,17 @@ OPTFLAGS ?= -O3 -march=native
 #OPTFLAGS ?= -g3 -fsanitize=address,undefined -O2 -lasan
 #OPTFLAGS ?= -g3 -fsanitize=leak -O2 -lubsan
 
-# optional extra packages
-#LIBS = opencv
-#INCLUDE_DIR += $(shell pkg-config --cflags $(LIBS))
-#LDFLAGS += $(shell pkg-config $(LIBS) --libs)
+# extra packages from pkg-config
+LIBS = protobuf libzmq
+INCLUDE_DIR += $(shell pkg-config --cflags $(LIBS))
+LDFLAGS += $(shell pkg-config $(LIBS) --libs)
 
-CXXFLAGS ?=
 CXXFLAGS += $(INCLUDE_DIR)
-CXXFLAGS += -Wall -Wextra -Wno-unused-parameter -Wno-ignored-qualifiers
+CXXFLAGS += -Wall -Wextra
 CXXFLAGS += $(DEFINES) -std=c++11 $(OPTFLAGS) -fPIC
 CXXFLAGS += -D_GLIBCXX_USE_CXX11_ABI=0 		# https://github.com/tensorflow/tensorflow/issues/1569
 
 LDFLAGS += $(OPTFLAGS)
-LDFLAGS += -lzmq -lprotobuf $(OMP_FLAG)
 LDFLAGS += -shared -fPIC
 
 SHELL = bash

tensorpack/user_ops/__init__.py

@@ -11,7 +11,7 @@ __all__ = ['zmq_recv']
 
 include_dir = tf.sysconfig.get_include()
 file_dir = os.path.dirname(os.path.abspath(__file__))
-compile_cmd = 'make INCLUDE_DIR=-I{} -C {}'.format(include_dir, file_dir)
+compile_cmd = 'make INCLUDE_DIR="-isystem {}" -C "{}"'.format(include_dir, file_dir)
 print("Compiling user ops ...")
 ret = os.system(compile_cmd)
 if ret != 0: