From b2243d950b84f26c834002a70ac6a96b3409b557 Mon Sep 17 00:00:00 2001
From: Duy-Nguyen Ta <thduynguyen@gmail.com>
Date: Tue, 21 Mar 2017 18:05:41 -0400
Subject: [PATCH] get compiler settings from cmake

---
 cython/gtsam/setup.py.in          | 13 ++++++-------
 cython/gtsam_unstable/setup.py.in | 10 +++++-----
 2 files changed, 11 insertions(+), 12 deletions(-)

diff --git a/cython/gtsam/setup.py.in b/cython/gtsam/setup.py.in
index 59af17c3c..7efbb9d68 100644
--- a/cython/gtsam/setup.py.in
+++ b/cython/gtsam/setup.py.in
@@ -2,12 +2,11 @@ from distutils.core import setup
 from distutils.extension import Extension
 from Cython.Build import cythonize
 import eigency
-from sys import platform
+import sys
+import os
 
-# force clang use libc++ instead of the default libstdc++ shipped with MacOSX, which doesn't support c++11
-libc_flag = []
-if platform == "darwin":
-    libc_flag = ["-stdlib=libc++"]
+os.environ["CXX"] = "${CMAKE_CXX_COMPILER}"
+os.environ["CC"] = "${CMAKE_C_COMPILER}"
 
 setup(
   ext_modules = cythonize(Extension(
@@ -19,6 +18,6 @@ setup(
     libraries = ['gtsam'],
     library_dirs = ["${CMAKE_BINARY_DIR}/gtsam"],
     language="c++",
-    extra_compile_args=["-std=c++11"] + libc_flag,
-    extra_link_args=libc_flag)),
+    extra_compile_args="${CMAKE_CXX_FLAGS}".split(),
+    extra_link_args="${CMAKE_SHARED_LINKER_FLAGS}".split()))
 )
diff --git a/cython/gtsam_unstable/setup.py.in b/cython/gtsam_unstable/setup.py.in
index 548802c67..7e81f5b7d 100644
--- a/cython/gtsam_unstable/setup.py.in
+++ b/cython/gtsam_unstable/setup.py.in
@@ -3,13 +3,13 @@ from distutils.extension import Extension
 from Cython.Build import cythonize
 import eigency
 import sys
+import os
 
 # so that it can find the wrapped gtsam package
 sys.path.append("..")
 
-libc_flag = []
-if sys.platform == "darwin":
-    libc_flag = ["-stdlib=libc++"]
+os.environ["CXX"] = "${CMAKE_CXX_COMPILER}"
+os.environ["CC"] = "${CMAKE_C_COMPILER}"
 
 setup(
     ext_modules=cythonize(Extension(
@@ -21,7 +21,7 @@ setup(
         libraries=['gtsam', 'gtsam_unstable'],
         library_dirs=["${GTSAM_DIR}/../../"],
         language="c++",
-        extra_compile_args=["-std=c++11"] + libc_flag,
-        extra_link_args=libc_flag)),
+        extra_compile_args="${CMAKE_CXX_FLAGS}".split(),
+        extra_link_args="${CMAKE_SHARED_LINKER_FLAGS}".split()))
 )