专家
我正在尝试在虚拟python环境中使用pip安装numba。我遇到以下错误：
错误日志：
cc: numba/cuda/cudadrv/_extras.c
cc -shared -lpthread -L/usr/local/lib -fstack-protector build/temp.freebsd-12.0-RELEASE-p2-amd64-3.6/numba/cuda/cudadrv/_extras.o -L/usr/local/lib -lpython3.6m -o build/lib.freebsd-12.0-RELEASE-p2-amd64-3.6/numba/cuda/cudadrv/_extras.so
building 'numba.npyufunc.omppool' extension
C compiler: cc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -O2 -pipe -fstack-protector -fno-strict-aliasing -fPIC
compile options: '-I/home/russellb/py_devel/pyPlay/include -I/usr/local/include/python3.6m -c'
extra options: '-fopenmp -std=c++11'
cc: numba/npyufunc/omppool.cpp
cc: numba/npyufunc/gufunc_scheduler.cpp
numba/npyufunc/omppool.cpp:5:10: fatal error: 'omp.h' file not found
#include <omp.h>
^~~~~~~
1 error generated.
numba/npyufunc/omppool.cpp:5:10: fatal error: 'omp.h' file not found
#include <omp.h>
^~~~~~~
1 error generated.
error: Command "cc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -O2 -pipe -fstack-protector -fno-strict-aliasing -fPIC -I/home/russellb/py_devel/pyPlay/include -I/usr/local/include/python3.6m -c numba/npyufunc/omppool.cpp -o build/temp.freebsd-12.0-RELEASE-p2-amd64-3.6/numba/npyufunc/omppool.o -fopenmp -std=c++11" failed with exit status 1
error
Cleaning up...
Removing source in /tmp/pip-install-g3ckpog3/numba
Removed build tracker '/tmp/pip-req-tracker-21vj3szg'
Command "/home/russellb/py_devel/pyPlay/bin/python3.6 -u -c "import setuptools, tokenize;__file__='/tmp/pip-install-g3ckpog3/numba/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-record-lf_sxfnx/install-record.txt --single-version-externally-managed --compile --install-headers /home/russellb/py_devel/pyPlay/include/site/python3.6/numba" failed with error code 1 in /tmp/pip-install-g3ckpog3/numba/
Exception information:
Traceback (most recent call last):
File "/home/russellb/py_devel/pyPlay/lib/python3.6/site-packages/pip/_internal/cli/base_command.py", line 143, in main
status = self.run(options, args)
File "/home/russellb/py_devel/pyPlay/lib/python3.6/site-packages/pip/_internal/commands/install.py", line 366, in run
use_user_site=options.use_user_site,
File "/home/russellb/py_devel/pyPlay/lib/python3.6/site-packages/pip/_internal/req/__init__.py", line 49, in install_given_reqs
**kwargs
File "/home/russellb/py_devel/pyPlay/lib/python3.6/site-packages/pip/_internal/req/req_install.py", line 791, in install
spinner=spinner,
File "/home/russellb/py_devel/pyPlay/lib/python3.6/site-packages/pip/_internal/utils/misc.py", line 705, in call_subprocess
% (command_desc, proc.returncode, cwd))
pip._internal.exceptions.InstallationError: Command "/home/russellb/py_devel/pyPlay/bin/python3.6 -u -c "import setuptools, tokenize;__file__='/tmp/pip-install-g3ckpog3/numba/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-record-lf_sxfnx/install-record.txt --single-version-externally-managed --compile --install-headers /home/russellb/py_devel/pyPlay/include/site/python3.6/numba" failed with error code 1 in /tmp/pip-install-g3ckpog3/numba/
但是omp.h中存在/usr/local/llvm70/lib/clang/7.0.1/include/omp.h。
任何帮助您解决/修复此问题的帮助都非常感谢。我正在运行FreeBSD 12和python3.6。我已将llvm7默认设置为软链接，因为这将对您有所帮助。
我认为，makefile在与实际位置不同的位置寻找omp.h。如果是这样，是否有办法在安装pip时将路径作为参数传递？
跟进：
按照@hoefling的建议设置CPPFLAGS确实可以解决上述问题。但是，下一个错误如下：
C compiler: cc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -O2 -pipe -fstack-protector -fno-strict-aliasing -I /usr/local/llvm70/lib/clang/7.0.1/include/ -fPIC
compile options: '-I/home/russellb/py_devel/pyPlay/include -I/usr/local/include/python3.6m -c'
extra options: '-fopenmp -std=c++11'
cc: numba/npyufunc/omppool.cpp
cc: numba/npyufunc/gufunc_scheduler.cpp
c++ -shared -lpthread -L/usr/local/lib -fstack-protector -I /usr/local/llvm70/lib/clang/7.0.1/include/ build/temp.freebsd-12.0-RELEASE-p2-amd64-3.6/numba/npyufunc/omppool.o build/temp.freebsd-12.0-RELEASE-p2-amd64-3.6/numba/npyufunc/gufunc_scheduler.o -L/usr/local/lib -lpython3.6m -o build/lib.freebsd-12.0-RELEASE-p2-amd64-3.6/numba/npyufunc/omppool.so -fopenmp
building 'numba.npyufunc.workqueue' extension
C compiler: cc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -O2 -pipe -fstack-protector -fno-strict-aliasing -I /usr/local/llvm70/lib/clang/7.0.1/include/ -fPIC
compile options: '-I/home/russellb/py_devel/pyPlay/include -I/usr/local/include/python3.6m -c'
cc: numba/npyufunc/workqueue.c
cc: numba/npyufunc/gufunc_scheduler.cpp
numba/npyufunc/workqueue.c:22:10: fatal error: 'alloca.h' file not found
#include <alloca.h>
^~~~~~~~~~
1 error generated.
numba/npyufunc/workqueue.c:22:10: fatal error: 'alloca.h' file not found
#include <alloca.h>
^~~~~~~~~~
1 error generated.
error: Command "cc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -O2 -pipe -fstack-protector -fno-strict-aliasing -I /usr/local/llvm70/lib/clang/7.0.1/include/ -fPIC -I/home/russellb/py_devel/pyPlay/include -I/usr/local/include/python3.6m -c numba/npyufunc/workqueue.c -o build/temp.freebsd-12.0-RELEASE-p2-amd64-3.6/numba/npyufunc/workqueue.o" failed with exit status 1
error
Cleaning up...
Removing source in /tmp/pip-install-fbsigyza/numba
Removed build tracker '/tmp/pip-req-tracker-0v_6_gji'
Command "/home/russellb/py_devel/pyPlay/bin/python3.6 -u -c "import setuptools, tokenize;__file__='/tmp/pip-install-fbsigyza/numba/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-record-pcr7ap84/install-record.txt --single-version-externally-managed --compile --install-headers /home/russellb/py_devel/pyPlay/include/site/python3.6/numba" failed with error code 1 in /tmp/pip-install-fbsigyza/numba/
Exception information:
Traceback (most recent call last):
File "/home/russellb/py_devel/pyPlay/lib/python3.6/site-packages/pip/_internal/cli/base_command.py", line 143, in main
status = self.run(options, args)
File "/home/russellb/py_devel/pyPlay/lib/python3.6/site-packages/pip/_internal/commands/install.py", line 366, in run
use_user_site=options.use_user_site,
File "/home/russellb/py_devel/pyPlay/lib/python3.6/site-packages/pip/_internal/req/__init__.py", line 49, in install_given_reqs
**kwargs
File "/home/russellb/py_devel/pyPlay/lib/python3.6/site-packages/pip/_internal/req/req_install.py", line 791, in install
spinner=spinner,
File "/home/russellb/py_devel/pyPlay/lib/python3.6/site-packages/pip/_internal/utils/misc.py", line 705, in call_subprocess
% (command_desc, proc.returncode, cwd))
pip._internal.exceptions.InstallationError: Command "/home/russellb/py_devel/pyPlay/bin/python3.6 -u -c "import setuptools, tokenize;__file__='/tmp/pip-install-fbsigyza/numba/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-record-pcr7ap84/install-record.txt --single-version-externally-managed --compile --install-headers /home/russellb/py_devel/pyPlay/include/site/python3.6/numba" failed with error code 1 in /tmp/pip-install-fbsigyza/numba/
我在以下位置有两个alloca.h：
/usr/src/contrib/ofed/libibverbs/alloca.h
/usr/src/cddl/compat/opensolaris/include/alloca.h
我不知道哪一个是正确的。
感谢您的所有努力。
答案 0 :(得分：2)
omp.h通常是gcc编译器的一部分，例如在Ubuntu上，它已安装
$ sudo apt install libgcc-7-dev
标头由devel/openmp提供。您可以通过以下方式安装它：
$ sudo pkg install devel/openmp
这会将omp.h放入/usr/local/include中，默认情况下应将其包含目录。
如果要在自定义包含目录下附加标题，请使用CPPFLAGS / CFLAGS环境变量：
$ CPPFLAGS="-I/usr/local/llvm70/lib/clang/7.0.1/include/" pip install numba
对于第二个错误，我想numba并不是在考虑FreeBSD的情况下编写的（也不确定CUDA和FreeBSD总体上是否运行良好）。也许open an issue？我认为numba/npyufunc/workqueue.c的补丁建议应该是
#include <pthread.h>
#include <unistd.h>
+#if !defined (__FreeBSD__)
#include <alloca.h>
+#endif
#define NUMBA_PTHREAD
#endif
除此之外，请尝试包括第二个（/usr/src/cddl/compat/opensolaris/include/alloca.h）。