[Numpy-discussion] Help building NumPy on Windows

[Chris Ball]

Hi,

I'm having some trouble building numpy on a 64-bit Windows 7 machine. I'm 
probably accidentally missing a step following the build process described at 
http://scipy.org/Installing_SciPy/Windows; it would be great if someone could 
spot what!

Here's what I did:
1. installed python 2.7 from python.org
2. installed mingw32 from the link above (results in gcc 3.4.5)
3. added c:\mingw\bin to front of path
4. ran "python setup.py build --compiler=mingw32 install --prefix=numpy-install"

I got the following error:
[...]
C:\Users\ceball\npslavetest\Windows7_x64_mingw32_3.4.5-
py27\build\numpy\distutils\system_info.py:1409: UserWarning: 
    Lapack (http://www.netlib.org/lapack/) sources not found.
    Directories to search for the sources can be specified in the
    numpy/distutils/site.cfg file (section [lapack_src]) or by setting
    the LAPACK_SRC environment variable.
  warnings.warn(LapackSrcNotFoundError.__doc__)
customize GnuFCompiler
gnu: no Fortran 90 compiler found
gnu: no Fortran 90 compiler found
customize GnuFCompiler using config
C compiler: gcc -mno-cygwin -O2 -Wall -Wstrict-prototypes

compile options: '-DNPY_MINGW_USE_CUSTOM_MSVCR -D__MSVCRT_VERSION__=0x0900 -
Inumpy\core\src\private -Inumpy\core\src -Inumpy\core -Inumpy\core\src\npymath -
Inumpy\core\src\multiarray -Inumpy\core\src\umath -Inumpy\core\src\npysort -
Inumpy\core\include -Ic:\Python27\include -Ic:\Python27\PC -c'
gcc -mno-cygwin -O2 -Wall -Wstrict-prototypes -DNPY_MINGW_USE_CUSTOM_MSVCR -
D__MSVCRT_VERSION__=0x0900 -Inumpy\core\src\private -Inumpy\core\src -
Inumpy\core -Inumpy\core\src\npymath -Inumpy\core\src\multiarray -
Inumpy\core\src\umath -Inumpy\core\src\npysort -Inumpy\core\include -
Ic:\Python27\include -Ic:\Python27\PC -c _configtest.c -o _configtest.o
Found executable c:\mingw\bin\gcc.exe
g++ -mno-cygwin _configtest.o -lmsvcr90 -o _configtest.exe
Found executable c:\mingw\bin\g++.exe
c:\mingw\bin\..\lib\gcc\mingw32\3.4.5\..\..\..\..\mingw32\bin\ld.exe: cannot 
find -lmsvcr90
collect2: ld returned 1 exit status
failure.
removing: _configtest.exe.manifest _configtest.c _configtest.o
Traceback (most recent call last):
  File "setup.py", line 214, in <module>
    setup_package()
  File "setup.py", line 207, in setup_package
    configuration=configuration )
  File "C:\Users\ceball\npslavetest\Windows7_x64_mingw32_3.4.5-
py27\build\numpy\distutils\core.py", line 186, in setup
    return old_setup(**new_attr)
  File "c:\Python27\lib\distutils\core.py", line 152, in setup
    dist.run_commands()
  File "c:\Python27\lib\distutils\dist.py", line 953, in run_commands
    self.run_command(cmd)
  File "c:\Python27\lib\distutils\dist.py", line 972, in run_command
    cmd_obj.run()
  File "C:\Users\ceball\npslavetest\Windows7_x64_mingw32_3.4.5-
py27\build\numpy\distutils\command\build.py", line 37, in run
    old_build.run(self)
  File "c:\Python27\lib\distutils\command\build.py", line 127, in run
    self.run_command(cmd_name)
  File "c:\Python27\lib\distutils\cmd.py", line 326, in run_command
    self.distribution.run_command(command)
  File "c:\Python27\lib\distutils\dist.py", line 972, in run_command
    cmd_obj.run()
  File "C:\Users\ceball\npslavetest\Windows7_x64_mingw32_3.4.5-
py27\build\numpy\distutils\command\build_src.py", line 152, in run
    self.build_sources()
  File "C:\Users\ceball\npslavetest\Windows7_x64_mingw32_3.4.5-
py27\build\numpy\distutils\command\build_src.py", line 163, in build_sources
    self.build_library_sources(*libname_info)
  File "C:\Users\ceball\npslavetest\Windows7_x64_mingw32_3.4.5-
py27\build\numpy\distutils\command\build_src.py", line 298, in 
build_library_sources
    sources = self.generate_sources(sources, (lib_name, build_info))
  File "C:\Users\ceball\npslavetest\Windows7_x64_mingw32_3.4.5-
py27\build\numpy\distutils\command\build_src.py", line 385, in generate_sources
    source = func(extension, build_dir)
  File "numpy\core\setup.py", line 648, in get_mathlib_info
    raise RuntimeError("Broken toolchain: cannot link a simple C program")
RuntimeError: Broken toolchain: cannot link a simple C program


Can anyone see what I've missed from this?


I'm not sure what the situation is for supporting building with Microsoft 
compilers, but on another Windows 7 machine (also 64 bits) with MS 
Visual Studio 9.0 installed, the build completes but I get test failures. 
You can see the full output of this here:
https://jenkins.shiningpanda.com/scipy/job/NumPy-Windows7_x64-
py27/26/consoleFull