[Mono-dev] Compiling on Windows

Greg Najda gregnajda at gmail.com
Wed Jul 10 22:08:05 UTC 2013 

It's not a simple matter of prepending \\?\ to every path. What if the path
already has \\?\ or one of those other strange Windows prefixes or is a UNC
path, which normally begins \\server\share but would have to become
\\?\UNC\server\share? You also can't use \\?\ with relative paths. Forward
slashes don't get converted to backslashes in \\?\ paths. There are a
multitude of issues that would need to be dealt with, some of them covered
here:
http://blogs.msdn.com/b/bclteam/archive/2007/02/13/long-paths-in-net-part-1-of-3-kim-hamilton.aspx

Windows path rules are kind of insane.


On Wed, Jul 10, 2013 at 9:49 AM, Jonathan Chambers <joncham at gmail.com>wrote:

> Or maybe we could try long path support on WIndows.
>
>
> http://msdn.microsoft.com/en-us/library/windows/desktop/aa364944(v=vs.85).aspx
>
> "In the ANSI version of this function, the name is limited to *MAX_PATH* characters.
> To extend this limit to 32,767 wide characters, call the Unicode version of
> the function and prepend "\\?\" to the path. For more information, see File
> Names, Paths, and Namespaces<http://msdn.microsoft.com/en-us/library/windows/desktop/aa365247(v=vs.85).aspx>
> ."
>
> Thanks,
> Jonathan
>
>
> On Tue, Jul 9, 2013 at 11:22 PM, Greg Najda <gregnajda at gmail.com> wrote:
>
>> Following up on this, I finally got it figured it. The length of my
>> checkout directory is too long at 49 chars, which is not really that long.
>> I did some digging and found that Mono uses GetFileAttributes to check for
>> the existence of a file in Windows. So I made a test program in C that
>> takes a path on the command line and calls GetFileAttributes on it.
>>
>> #include <Windows.h>
>> #include <stdio.h>
>>
>> int _tmain(int argc, _TCHAR* argv[])
>> {
>>     DWORD res = GetFileAttributes(argv[1]);
>>
>>     if(res != -1)
>>     {
>>         printf("GetFileAttributes: Found.\r\n");
>>     }
>>     else
>>     {
>>         printf("GetFileAttributes: Not found. Error code: %d\r\n",
>> GetLastError());
>>     }
>>
>>     return 0;
>> }
>>
>> I added two files to
>> external\entityframework\src\EntityFramework.SqlServer\Resources\System\Data\SqlClient:
>> System.Data.Resources.SqlClient.SqlProviderServices.StoreSchemaMapping123.msl
>> and
>> System.Data.Resources.SqlClient.SqlProviderServices.StoreSchemaMapping1234.msl.
>>
>>
>> C:\Users\Greg\Documents\Programming\mono_nul_fork\mcs\class\EntityFramework.SqlServer>MonoFileExistsTest.exe
>> ../../../external/entityframework/src/EntityFramework.SqlServer/Resources/System/Data/SqlClient/System.Data.Resources.SqlClient.SqlProviderServices.StoreSchemaMapping123.msl
>> GetFileAttributes: Found.
>>
>> C:\Users\Greg\Documents\Programming\mono_nul_fork\mcs\class\EntityFramework.SqlServer>MonoFileExistsTest.exe
>> ../../../external/entityframework/src/EntityFramework.SqlServer/Resources/System/Data/SqlClient/System.Data.Resources.SqlClient.SqlProviderServices.StoreSchemaMapping1234.msl
>> GetFileAttributes: Not found. Error code: 3
>>
>> ../../../external/entityframework/src/EntityFramework.SqlServer/Resources/System/Data/SqlClient/System.Data.Resources.SqlClient.SqlProviderServices.StoreSchemaMapping1234.msl
>> is only 174 chars, much lower than MAX_PATH of 260 chars. What gives?
>>
>> Well, if you put the current directory before the relative path so it
>> becomes
>> C:\Users\Greg\Documents\Programming\mono_nul_fork\mcs\class\EntityFramework.SqlServer\../../../external/entityframework/src/EntityFramework.SqlServer/Resources/System/Data/SqlClient/System.Data.Resources.SqlClient.SqlProviderServices.StoreSchemaMapping1234.msl,
>> then that is exactly 260 chars. With null terminator, it's 261 and over
>> MAX_PATH. I guess Windows prepends the current directory before checking
>> path length.
>>
>> Interestingly, .NET's File.Exists does not encounter the same problem. If
>> I run mcs using .NET instead of Mono, the particular compile step that
>> failed works. I wonder what sorcery it does?
>>
>> Perhaps add a suggestion to
>> http://www.mono-project.com/Compiling_Mono_on_Windows to keep the path
>> length of your checkout directory extremely short.
>>
>> https://wrench.mono-project.com/Wrench/index.aspx?show_all=true shows
>> the Windows build as still broken so this was all with the last revision
>> that Wrench shows to successfully build.
>>
>>
>> On Thu, Jun 27, 2013 at 10:24 PM, Greg Najda <gregnajda at gmail.com> wrote:
>>
>>> I'm new to git. I'm using Atlassian SourceTree as a git gui. I'm pretty
>>> sure it updates submodules after cloning. I ran "git submodule update"
>>> anyway, which produced no output, and then tried building again and got
>>> the same error.
>>>
>>> After pulling the latest changes I get a new error earlier in the build:
>>>
>>> make[3]: *** No rule to make target `mono-sgen', needed by `mono'.  Stop.
>>>
>>>
>>> On Wed, Jun 26, 2013 at 11:12 AM, Rodrigo Kumpera <kumpera at gmail.com>wrote:
>>>
>>>> Update your git submodules.
>>>>
>>>>
>>>> On Tue, Jun 25, 2013 at 10:05 PM, Greg Najda <gregnajda at gmail.com>wrote:
>>>>
>>>>> I'm running into some trouble compiling Mono on Windows. Here are the
>>>>> steps I followed:
>>>>>
>>>>> 1. Do a git clone (using 1b5ef4d3df262c66f58596bda152db5f4c34741c,
>>>>> "Add a GSHAREDVT_REG_IREG return marshalling convention on ARM.",
>>>>> 2013-06-23)
>>>>> 2. Install cygwin. Include packages: autoconf, automake, bison,
>>>>> gcc-core, gcc-g++, libtool, make, python, wget, zip (all from
>>>>> http://www.mono-project.com/Compiling_Mono_on_Windows),
>>>>> mingw-pthreads (get an error with mono/utils/atomic.c without it because it
>>>>> #includes <pthread.h>), gettext, gettext-devel (seem to be missing msgfmt
>>>>> without the devel package)
>>>>> 3. Start cygwin
>>>>> 4. Copy checkout to /home/Greg/mono
>>>>> 5. Run:
>>>>>
>>>>> export PATH="$PATH:/cygdrive/c/Program Files (x86)/Mono-3.0.10/bin"
>>>>> cd mono
>>>>> ./autogen.sh --prefix=/usr/local 2>&1 | tee
>>>>> ~/autogen_output_with_stderror.txt
>>>>> make V=1 2>&1 | tee ~/make_output_with_stderror_verbose.txt
>>>>>
>>>>>
>>>>> I did see this in the autogen output. Is it anything to be concerned
>>>>> about?
>>>>>
>>>>> checking winternl.h usability... no
>>>>> checking winternl.h presence... yes
>>>>> configure: WARNING: winternl.h: present but cannot be compiled
>>>>> configure: WARNING: winternl.h:     check for missing prerequisite
>>>>> headers?
>>>>> configure: WARNING: winternl.h: see the Autoconf documentation
>>>>> configure: WARNING: winternl.h:     section "Present But Cannot Be
>>>>> Compiled"
>>>>> configure: WARNING: winternl.h: proceeding with the compiler's result
>>>>> configure: WARNING:     ##
>>>>> ----------------------------------------------------------------------------
>>>>> ##
>>>>> configure: WARNING:     ## Report this to
>>>>> http://bugzilla.xamarin.com/enter_bug.cgi?classification=Mono ##
>>>>> configure: WARNING:     ##
>>>>> ----------------------------------------------------------------------------
>>>>> ##
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> Here are the last several lines of output from make:
>>>>>
>>>>> make[7]: Entering directory
>>>>> `/home/Greg/mono/mcs/class/EntityFramework.SqlServer'
>>>>> make all-local
>>>>> make[8]: Entering directory
>>>>> `/home/Greg/mono/mcs/class/EntityFramework.SqlServer'
>>>>> Converting EntityFramework.SqlServer.dll.sources to
>>>>> ../../build/deps/net_4_5_EntityFramework.SqlServer.dll.response ...
>>>>> MONO_PATH="./../../class/lib/net_4_5;$MONO_PATH"
>>>>> /home/Greg/mono/runtime/mono-wrapper  ./../../class/lib/net_4_5/resgen.exe
>>>>> "../../../external/entityframework/src/EntityFramework.SqlServer/Properties/Resources.SqlServer.resx"
>>>>> "System.Data.Entity.SqlServer.Properties.Resources.SqlServer.resources"
>>>>> Read in 44 resources from
>>>>> 'C:\Users\Greg\Documents\Programs\cygwin\home\Greg\mono\external\entityframework\src\EntityFramework.SqlServer\Properties\Resources.SqlServer.resx'
>>>>> Writing resource file...  Done.
>>>>> MONO_PATH="./../../class/lib/build;$MONO_PATH"
>>>>> /home/Greg/mono/runtime/mono-wrapper  ./../../class/lib/build/mcs.exe
>>>>> /codepage:65001  /nologo -d:NET_1_1 -d:NET_2_0 -d:NET_3_0 -d:NET_3_5
>>>>> -d:NET_4_0 -d:NET_4_5 -nowarn:1699 -nostdlib -lib:./../../class/lib/net_4_5
>>>>> -r:mscorlib.dll /debug+ /debug:full -optimize  /noconfig -r:System.dll
>>>>> -r:System.Xml.dll -r:System.Core.dll -r:EntityFramework.dll
>>>>> -r:System.Data.dll  -keyfile:../ecma.pub -delaysign -warn:1
>>>>> -resource:System.Data.Entity.SqlServer.Properties.Resources.SqlServer.resources
>>>>> -resource:../../../external/entityframework/src/EntityFramework.SqlServer/Resources/System/Data/SqlClient/System.Data.Resources.SqlClient.SqlProviderServices.ProviderManifest.xml
>>>>> -resource:../../../external/entityframework/src/EntityFramework.SqlServer/Resources/System/Data/SqlClient/System.Data.Resources.SqlClient.SqlProviderServices.StoreSchemaDefinition.ssdl
>>>>> -resource:../../../external/entityframework/src/EntityFramework.SqlServer/Resources/System/Data/SqlClient/System.Data.Resources.SqlClient.SqlProviderServices.StoreSchemaDefinition_Sql8.ssdl
>>>>> -resource:../../../external/entityframework/src/EntityFramework.SqlServer/Resources/System/Data/SqlClient/System.Data.Resources.SqlClient.SqlProviderServices.StoreSchemaDefinitionVersion3.ssdl
>>>>> -resource:../../../external/entityframework/src/EntityFramework.SqlServer/Resources/System/Data/SqlClient/System.Data.Resources.SqlClient.SqlProviderServices.StoreSchemaDefinitionVersion3_Sql8.ssdl
>>>>> -resource:../../../external/entityframework/src/EntityFramework.SqlServer/Resources/System/Data/SqlClient/System.Data.Resources.SqlClient.SqlProviderServices.StoreSchemaMapping.msl
>>>>> -resource:../../../external/entityframework/src/EntityFramework.SqlServer/Resources/System/Data/SqlClient/System.Data.Resources.SqlClient.SqlProviderServices.StoreSchemaMappingVersion3.msl
>>>>> -target:library -out:../../class/lib/net_4_5/EntityFramework.SqlServer.dll
>>>>> @./../../build/deps/net_4_5_EntityFramework.SqlServer.dll.response
>>>>> error CS1566: Error reading resource file
>>>>> `../../../external/entityframework/src/EntityFramework.SqlServer/Resources/System/Data/SqlClient/System.Data.Resources.SqlClient.SqlProviderServices.StoreSchemaDefinition.ssdl'
>>>>> error CS1566: Error reading resource file
>>>>> `../../../external/entityframework/src/EntityFramework.SqlServer/Resources/System/Data/SqlClient/System.Data.Resources.SqlClient.SqlProviderServices.StoreSchemaDefinition_Sql8.ssdl'
>>>>> error CS1566: Error reading resource file
>>>>> `../../../external/entityframework/src/EntityFramework.SqlServer/Resources/System/Data/SqlClient/System.Data.Resources.SqlClient.SqlProviderServices.StoreSchemaDefinitionVersion3.ssdl'
>>>>> error CS1566: Error reading resource file
>>>>> `../../../external/entityframework/src/EntityFramework.SqlServer/Resources/System/Data/SqlClient/System.Data.Resources.SqlClient.SqlProviderServices.StoreSchemaDefinitionVersion3_Sql8.ssdl'
>>>>> error CS1566: Error reading resource file
>>>>> `../../../external/entityframework/src/EntityFramework.SqlServer/Resources/System/Data/SqlClient/System.Data.Resources.SqlClient.SqlProviderServices.StoreSchemaMapping.msl'
>>>>> error CS1566: Error reading resource file
>>>>> `../../../external/entityframework/src/EntityFramework.SqlServer/Resources/System/Data/SqlClient/System.Data.Resources.SqlClient.SqlProviderServices.StoreSchemaMappingVersion3.msl'
>>>>> Compilation failed: 6 error(s), 0 warnings
>>>>> ../../build/library.make:256: recipe for target
>>>>> `../../class/lib/net_4_5/EntityFramework.SqlServer.dll' failed
>>>>> make[8]: *** [../../class/lib/net_4_5/EntityFramework.SqlServer.dll]
>>>>> Error 1
>>>>> make[8]: Leaving directory
>>>>> `/home/Greg/mono/mcs/class/EntityFramework.SqlServer'
>>>>> ../../build/rules.make:137: recipe for target `do-all' failed
>>>>> make[7]: *** [do-all] Error 2
>>>>> make[7]: Leaving directory
>>>>> `/home/Greg/mono/mcs/class/EntityFramework.SqlServer'
>>>>> ../build/rules.make:158: recipe for target `all-recursive' failed
>>>>> make[6]: *** [all-recursive] Error 1
>>>>> make[6]: Leaving directory `/home/Greg/mono/mcs/class'
>>>>> build/rules.make:158: recipe for target `all-recursive' failed
>>>>> make[5]: *** [all-recursive] Error 1
>>>>> make[5]: Leaving directory `/home/Greg/mono/mcs'
>>>>> Makefile:99: recipe for target `profile-do--net_4_5--all' failed
>>>>> make[4]: *** [profile-do--net_4_5--all] Error 2
>>>>> make[4]: Leaving directory `/home/Greg/mono/mcs'
>>>>> Makefile:95: recipe for target `profiles-do--all' failed
>>>>> make[3]: *** [profiles-do--all] Error 2
>>>>> make[3]: Leaving directory `/home/Greg/mono/mcs'
>>>>> Makefile:547: recipe for target `all-local' failed
>>>>> make[2]: *** [all-local] Error 2
>>>>> make[2]: Leaving directory `/home/Greg/mono/runtime'
>>>>> Makefile:463: recipe for target `all-recursive' failed
>>>>> make[1]: *** [all-recursive] Error 1
>>>>> make[1]: Leaving directory `/home/Greg/mono'
>>>>> Makefile:390: recipe for target `all' failed
>>>>> make: *** [all] Error 2
>>>>>
>>>>>
>>>>>
>>>>> Complete autogen log is at
>>>>> http://pastie.org/private/mo0bnluwmekwiws4na4zg and complete make log
>>>>> is at
>>>>> http://www.animerecs.com/Content/make_output_with_stderror_verbose.txt(too big for a pastebin site so I put it on my own site).
>>>>>
>>>>> Any ideas? Also, is there a way to only build the mono runtime and/or
>>>>> a way to only run the tests for a particular component? I'm primarily
>>>>> interested in testing a bugfix for
>>>>> https://bugzilla.xamarin.com/show_bug.cgi?id=12752.
>>>>>
>>>>> - Greg
>>>>>
>>>>> _______________________________________________
>>>>> Mono-devel-list mailing list
>>>>> Mono-devel-list at lists.ximian.com
>>>>> http://lists.ximian.com/mailman/listinfo/mono-devel-list
>>>>>
>>>>>
>>>>
>>>> _______________________________________________
>>>> Mono-devel-list mailing list
>>>> Mono-devel-list at lists.ximian.com
>>>> http://lists.ximian.com/mailman/listinfo/mono-devel-list
>>>>
>>>>
>>>
>>
>> _______________________________________________
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>>
>>
>
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