Heroku/Django 安装 pylibmc 时错误
我在尝试把项目部署到Heroku的时候，遇到了一堆错误，真是让人头疼。我按照他们的入门指南操作，但显然这些指南不够全面，还不太准确。
我的设置是一个模块，而我的依赖项是一个文件夹，里面有不同环境的多个.txt文件：
settings/
base.py
dev.py
heroku.py
requirements/
base.txt
dev.txt
heroku.txt
我在base.txt和heroku.txt（heroku.txt是基于base.txt的）里都尝试添加了pylibmc==1.2.2 django-pylibmc-sasl==0.2.4，结果还是没能解决问题。
这里是一些错误信息的简短示例：
_pylibmcmodule.c:2097: warning: passing argument 1 of ‘PyInt_FromLong’ makes integer from pointer without a cast
/app/.heroku/python/include/python2.7/intobject.h:38: note: expected ‘long int’ but argument is of type ‘struct PylibMC_Behavior *’
_pylibmcmodule.c:2097: warning: passing argument 1 of ‘PyObject_SetAttrString’ from incompatible pointer type
/app/.heroku/python/include/python2.7/object.h:472: note: expected ‘struct PyObject *’ but argument is of type ‘struct PylibMC_Behavior *’
_pylibmcmodule.c:2098: error: ‘PylibMC_McErr’ has no member named ‘name’
_pylibmcmodule.c:2098: error: ‘PylibMC_McErr’ has no member named ‘exc’
_pylibmcmodule.c:2098: warning: passing argument 2 of ‘PyModule_AddObject’ from incompatible pointer type
/app/.heroku/python/include/python2.7/modsupport.h:40: note: expected ‘const char *’ but argument is of type ‘struct PylibMC_Behavior *’
_pylibmcmodule.c:2100: error: ‘PylibMC_McErr’ has no member named ‘name’
_pylibmcmodule.c:2100: error: ‘PylibMC_McErr’ has no member named ‘exc’
_pylibmcmodule.c: In function ‘init_pylibmc’:
_pylibmcmodule.c:2176: error: ‘LIBMEMCACHED_VERSION_STRING’ undeclared (first use in this function)
_pylibmcmodule.c:2176: warning: passing argument 3 of ‘PyModule_AddStringConstant’ from incompatible pointer type
/app/.heroku/python/include/python2.7/modsupport.h:42: note: expected ‘const char *’ but argument is of type ‘struct PylibMC_Behavior *’
error: command 'gcc' failed with exit status 1
----------------------------------------
Command /app/.heroku/python/bin/python -c "import setuptools;__file__='/app/build/pylibmc/setup.py';exec(compile(open(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --single-version-externally-managed --record /tmp/pip-i0GDaz-record/install-record.txt failed with error code 1 in /app/build/pylibmc
Storing complete log in /app/.pip/pip.log
! Heroku push rejected, failed to compile Python app
我找到了一篇相关的帖子，在这里，这让我想到要把这些库添加到base.txt里，但还是没有帮助。