Re: [Numpy-discussion] "Symbol table not found" compiling numpy from git repository on Windows

18 Jul 2012

On Wed, Jul 18, 2012 at 12:30 PM, Ondřej Čertík  wrote:
...
On Wed, Jul 18, 2012 at 2:20 AM, Ondřej Čertík  wrote:
...
On Thu, Jan 5, 2012 at 8:22 PM, John Salvatier
 wrote:
...
Hello,
I'm trying to compile numpy on Windows 7 using the command: "python setup.py
config --compiler=mingw32 build" but I get an error about a symbol table not
found. Anyone know how to work around this or what to look into?
building library "npymath" sources
Building msvcr library: "C:\Python26\libs\libmsvcr90.a" (from
C:\Windows\winsxs\amd64_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.21022.8_none_750b37ff97f4f68b\msvcr90.dll)
objdump.exe:
C:\Windows\winsxs\amd64_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.21022.8_none_750b37ff97f4f68b\msvcr90.dll:
File format not recognized
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\jsalvatier\workspace\numpy\numpy\distutils\core.py", line
186, in setup
    return old_setup(**new_attr)
  File "C:\Python26\lib\distutils\core.py", line 152, in setup
    dist.run_commands()
  File "C:\Python26\lib\distutils\dist.py", line 975, in run_commands
    self.run_command(cmd)
  File "C:\Python26\lib\distutils\dist.py", line 995, in run_command
    cmd_obj.run()
  File
"C:\Users\jsalvatier\workspace\numpy\numpy\distutils\command\build.py", line
37, in run
    old_build.run(self)
  File "C:\Python26\lib\distutils\command\build.py", line 134, in run
    self.run_command(cmd_name)
  File "C:\Python26\lib\distutils\cmd.py", line 333, in run_command
    self.distribution.run_command(command)
  File "C:\Python26\lib\distutils\dist.py", line 995, in run_command
    cmd_obj.run()
  File
"C:\Users\jsalvatier\workspace\numpy\numpy\distutils\command\build_src.py",
line 152, in run
    self.build_sources()
  File
"C:\Users\jsalvatier\workspace\numpy\numpy\distutils\command\build_src.py",
line 163, in build_sources
    self.build_library_sources(*libname_info)
  File
"C:\Users\jsalvatier\workspace\numpy\numpy\distutils\command\build_src.py",
line 298, in build_library_sources
    sources = self.generate_sources(sources, (lib_name, build_info))
  File
"C:\Users\jsalvatier\workspace\numpy\numpy\distutils\command\build_src.py",
line 385, in generate_sources
    source = func(extension, build_dir)
  File "numpy\core\setup.py", line 646, in get_mathlib_info
    st = config_cmd.try_link('int main(void) { return 0;}')
  File "C:\Python26\lib\distutils\command\config.py", line 257, in try_link
    self._check_compiler()
  File
"C:\Users\jsalvatier\workspace\numpy\numpy\distutils\command\config.py",
line 45, in _check_compiler
    old_config._check_compiler(self)
  File "C:\Python26\lib\distutils\command\config.py", line 107, in
_check_compiler
    dry_run=self.dry_run, force=1)
  File "C:\Users\jsalvatier\workspace\numpy\numpy\distutils\ccompiler.py",
line 560, in new_compiler
    compiler = klass(None, dry_run, force)
  File
"C:\Users\jsalvatier\workspace\numpy\numpy\distutils\mingw32ccompiler.py",
line 94, in __init__
    msvcr_success = build_msvcr_library()
  File
"C:\Users\jsalvatier\workspace\numpy\numpy\distutils\mingw32ccompiler.py",
line 362, in build_msvcr_library
    generate_def(dll_file, def_file)
  File
"C:\Users\jsalvatier\workspace\numpy\numpy\distutils\mingw32ccompiler.py",
line 282, in generate_def
    raise ValueError("Symbol table not found")
ValueError: Symbol table not found
Did you find a workaround? I am having exactly the same problem.
So this happens both in Windows and in Wine and the problem is that
the numpy distutils is trying to read the symbol table using "objdump"
from msvcr90.dll but it can't recognize the format:
objdump.exe: C:\windows\winsxs\x86_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.4148_none_deadbeef\msvcr90.dll:
File format not recognized
The file exists:
$ file ~/.wine/drive_c/windows/winsxs/x86_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.4148_none_deadbeef/msvcr90.dll
/home/ondrej/.wine/drive_c/windows/winsxs/x86_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.4148_none_deadbeef/msvcr90.dll:
PE32 executable for MS Windows (DLL) (unknown subsystem) Intel 80386
32-bit
But objdump doesn't work on it.
So the following patch fixes it:

diff --git a/numpy/distutils/mingw32ccompiler.py b/numpy/distutils/mingw32ccompi
index 5b9aa33..72ff5ed 100644
--- a/numpy/distutils/mingw32ccompiler.py
+++ b/numpy/distutils/mingw32ccompiler.py
@@ -91,11 +91,11 @@ class Mingw32CCompiler(distutils.cygwinccompiler.CygwinCComp
         build_import_library()

         # Check for custom msvc runtime library on Windows. Build if it doesn't
-        msvcr_success = build_msvcr_library()
-        msvcr_dbg_success = build_msvcr_library(debug=True)
-        if msvcr_success or msvcr_dbg_success:
-            # add preprocessor statement for using customized msvcr lib
-            self.define_macro('NPY_MINGW_USE_CUSTOM_MSVCR')
+        #msvcr_success = build_msvcr_library()
+        #msvcr_dbg_success = build_msvcr_library(debug=True)
+        #if msvcr_success or msvcr_dbg_success:
+        #    # add preprocessor statement for using customized msvcr lib
+        #    self.define_macro('NPY_MINGW_USE_CUSTOM_MSVCR')

         # Define the MSVC version as hint for MinGW
         msvcr_version = '0x%03i0' % int(msvc_runtime_library().lstrip('msvcr'))




Now things work and start compiling. Any ideas what is going on here?
Why is it trying to "build the msvcr" library?

Ondrej

    