Qt static with MySQL issue

Cobra91151

So, you are right! I have checked the mysqlclient.lib using VS 2017 static MFC test project and I get the issues:

It means this library is a dynamic. So where to get the static library or source files to build this library as static? Thanks.

SGaist

MT and MD are just related to the Windows runtime type you'll be using.

Cobra91151

@SGaist

I have checked it using lib /list mysqlclient.lib and 7zip, it displayed:

This means the library is 100% static. So how to add it to Qt during reconfiguration? Should I provide full path to the library or remove all libs except mysqlclient.lib and provide path? Thanks.

SGaist

Can you show which configuration options you used ?

Cobra91151

@SGaist

Ok, my batch file:

SET /P qtBuildType=Qt build type (shared/static): 
SET /P qtBuildMySqlIncludePath=MySql include path: 
SET /P qtBuildMySqlLibPath=MySql lib path: 
SET /P qtBuildOpenSSLIncludePath=OpenSSL include path: 
SET /P qtBuildOpenSSLLibPath=OpenSSL lib path: 
SET /P qtBuildPath=Enter Qt build path: 
configure.bat -debug-and-release -%qtBuildType% -opensource -nomake tools -nomake examples -no-ltcg -sql-mysql -I "%qtBuildMySqlIncludePath%" -L "%qtBuildMySqlLibPath%" -ssl -openssl -openssl-linked -I "%qtBuildOpenSSLIncludePath%" -L "%qtBuildOpenSSLLibPath%" OPENSSL_LIBS="-lUser32 -lAdvapi32 -lGdi32 -lCrypt32" OPENSSL_LIBS_DEBUG="-lssleay32MTd -llibeay32MTd" OPENSSL_LIBS_RELEASE="-lssleay32MT -llibeay32MT" -prefix "%qtBuildPath%"

For example, MySql include path was : C:\MySQL\mysql-5.7.22-win32\include and MySql lib path C:\MySQL\mysql-5.7.22-win32\lib but it make Qt to use C:\MySQL\mysql-5.7.22-win32\lib\libmysql.lib (dynamic). I think, should be another way to set proper library.

SGaist

I would add MYSQL_LIBS=-lmysqlclient.

Cobra91151

@SGaist

Ok. I will try it and reply. Thanks.

Cobra91151

I added the MYSQL_LIBS="-lmysqlclient" to configure:

configure.bat -debug-and-release -%qtBuildType% -opensource -nomake tools -nomake examples -no-ltcg -sql-mysql -I "%qtBuildMySqlIncludePath%" -L "%qtBuildMySqlLibPath%" MYSQL_LIBS="-lmysqlclient" -ssl -openssl -openssl-linked -I "%qtBuildOpenSSLIncludePath%" -L "%qtBuildOpenSSLLibPath%" OPENSSL_LIBS="-lUser32 -lAdvapi32 -lGdi32 -lCrypt32" OPENSSL_LIBS_DEBUG="-lssleay32MTd -llibeay32MTd" OPENSSL_LIBS_RELEASE="-lssleay32MT -llibeay32MT" -prefix "%qtBuildPath%"

But I get the issue:

I think I should also provide the libmysql to MYSQL_LIBS or the problem is with mysql-5.7.23.

Cobra91151

I have found the issue! Adding this line MYSQL_LIBS="-lmysqlclient" to configure for some reason breaks the detection of MySQL. I will try again to confirm it.

Cobra91151

Yes, I was right. Adding MYSQL_LIBS="-lmysqlclient" breaks the detection of MySQL - 100% confirmed.

Cobra91151

I run a few tests and found that Qt requires libmysql.lib to configure, but since it dynamic lib it won't work in my case. I think I should try to rename mysqlclient.lib to libmysql.lib and test it.

Cobra91151

No, it fails with detection the MySQL if libmysql.lib has been changed, renamed or removed.

Cobra91151

I think I have found the issue.

This line of code in the file - configure.json - { "libs": "-lmysqlclient", "condition": "!config.win32" } disables mysqlclient (static) lib because condition states that !win32, means not Windows system. I will change it and try again.

Cobra91151

I have tried different solutions but it all failed.

The config.log:

+ cd /d D:\QtBuild\Src\config.tests\mysql && D:\QtBuild\Src\qtbase\bin\qmake.exe "CONFIG -= qt debug_and_release app_bundle lib_bundle" "CONFIG += static warn_off console single_arch" "QMAKE_LIBDIR += C:\\MySQL\\mysql-5.7.23-win32\\lib C:\\OpenSSL\\openssl-1.0.2l-vs2017\\lib" "INCLUDEPATH += C:\\MySQL\\mysql-5.7.23-win32\\include C:\\OpenSSL\\openssl-1.0.2l-vs2017\\include" "LIBS += -lmysqlclient" D:/QtBuild/Src/config.tests/mysql
+ cd /d D:\QtBuild\Src\config.tests\mysql && set MAKEFLAGS=& nmake
> Microsoft (R) Program Maintenance Utility Version 14.15.26726.0
> Copyright (C) Microsoft Corporation.  All rights reserved.
> 	cl -c -nologo -Zc:wchar_t -FS -Zc:rvalueCast -Zc:inline -Zc:strictStrings -Zc:throwingNew -Zc:referenceBinding -Zi -MDd -W0 -EHsc /Fdmysql.vc.pdb -DUNICODE -D_UNICODE -DWIN32 -I. -IC:\MySQL\mysql-5.7.23-win32\include -IC:\OpenSSL\openssl-1.0.2l-vs2017\include -ID:\QtBuild\Src\qtbase\mkspecs\win32-msvc -Fo @C:\Users\cobra\AppData\Local\Temp\nmC064.tmp
> main.cpp
> 	link /NOLOGO /DYNAMICBASE /NXCOMPAT /DEBUG /SUBSYSTEM:CONSOLE "/MANIFESTDEPENDENCY:type='win32' name='Microsoft.Windows.Common-Controls' version='6.0.0.0' publicKeyToken='6595b64144ccf1df' language='*' processorArchitecture='*'" /MANIFEST:embed /OUT:mysql.exe @C:\Users\cobra\AppData\Local\Temp\nmC2B7.tmp
> LINK : warning LNK4098: defaultlib 'MSVCRT' conflicts with use of other libs; use /NODEFAULTLIB:library
> mysqlclient.lib(xml.obj) : error LNK2001: unresolved external symbol __imp__sprintf
> mysqlclient.lib(libmysql.obj) : error LNK2001: unresolved external symbol __imp__sprintf
> mysqlclient.lib(my_time.obj) : error LNK2001: unresolved external symbol __imp__sprintf
> mysqlclient.lib(client.obj) : error LNK2001: unresolved external symbol __imp__sprintf
> mysqlclient.lib(ctype.obj) : error LNK2001: unresolved external symbol __imp__sprintf
> mysqlclient.lib(my_init.obj) : error LNK2019: unresolved external symbol __imp__RegCloseKey@4 referenced in function _win32_have_tcpip
> mysqlclient.lib(my_init.obj) : error LNK2019: unresolved external symbol __imp__RegEnumValueA@32 referenced in function _win_init_registry
> mysqlclient.lib(my_init.obj) : error LNK2019: unresolved external symbol __imp__RegOpenKeyExA@20 referenced in function _win32_have_tcpip
> mysqlclient.lib(my_default.obj) : error LNK2001: unresolved external symbol __imp____iob_func
> mysqlclient.lib(log_client.obj) : error LNK2001: unresolved external symbol __imp____iob_func
> mysqlclient.lib(my_init.obj) : error LNK2001: unresolved external symbol __imp____iob_func
> mysqlclient.lib(my_winfile.obj) : error LNK2001: unresolved external symbol __imp____iob_func
> mysqlclient.lib(my_mess.obj) : error LNK2001: unresolved external symbol __imp____iob_func
> mysqlclient.lib(typelib.obj) : error LNK2001: unresolved external symbol __imp____iob_func
> mysqlclient.lib(my_mess.obj) : error LNK2019: unresolved external symbol __imp__fprintf referenced in function _my_message_stderr
> mysqlclient.lib(typelib.obj) : error LNK2001: unresolved external symbol __imp__fprintf
> mysqlclient.lib(log_client.obj) : error LNK2001: unresolved external symbol __imp__fprintf
> mysqlclient.lib(client_authentication.obj) : error LNK2019: unresolved external symbol "__declspec(dllimport) char const * __cdecl std::_Winerror_map(int)" (__imp_?_Winerror_map@std@@YAPBDH@Z) referenced in function "public: virtual class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > __thiscall std::_System_error_category::message(int)const " (?message@_System_error_category@std@@UBE?AV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@2@H@Z)
> mysqlclient.lib(sha2_password_common.obj) : error LNK2001: unresolved external symbol "__declspec(dllimport) char const * __cdecl std::_Winerror_map(int)" (__imp_?_Winerror_map@std@@YAPBDH@Z)
> mysqlclient.lib(my_default.obj) : error LNK2019: unresolved external symbol __imp__printf referenced in function _my_load_defaults
> mysqlclient.lib(ssl.obj) : error LNK2019: unresolved external symbol __imp___snprintf referenced in function _ya_SSL_ASN1_TIME_to_string
> mysqlclient.lib(log_client.obj) : error LNK2019: unresolved external symbol __imp__vfprintf referenced in function "void __cdecl error_log_vprint(enum error_log_level::type,char const *,char *)" (?error_log_vprint@@YAXW4type@error_log_level@@PBDPAD@Z)
> mysqlclient.lib(common.obj) : error LNK2019: unresolved external symbol __imp__EqualSid@8 referenced in function "public: bool __thiscall Sid::operator==(class Sid const &)" (??8Sid@@QAE_NABV0@@Z)
> mysqlclient.lib(common.obj) : error LNK2019: unresolved external symbol __imp__GetTokenInformation@20 referenced in function "public: __thiscall Sid::Sid(void *)" (??0Sid@@QAE@PAX@Z)
> mysqlclient.lib(common.obj) : error LNK2019: unresolved external symbol __imp__IsValidSid@4 referenced in function "public: bool __thiscall Sid::is_valid(void)const " (?is_valid@Sid@@QBE_NXZ)
> mysqlclient.lib(common.obj) : error LNK2019: unresolved external symbol __imp__LookupAccountNameW@28 referenced in function "public: __thiscall Sid::Sid(wchar_t const *)" (??0Sid@@QAE@PB_W@Z)
> mysqlclient.lib(random.obj) : error LNK2019: unresolved external symbol __imp__CryptAcquireContextA@20 referenced in function "public: __thiscall TaoCrypt::OS_Seed::OS_Seed(void)" (??0OS_Seed@TaoCrypt@@QAE@XZ)
> mysqlclient.lib(random.obj) : error LNK2019: unresolved external symbol __imp__CryptReleaseContext@8 referenced in function "public: __thiscall TaoCrypt::OS_Seed::~OS_Seed(void)" (??1OS_Seed@TaoCrypt@@QAE@XZ)
> mysqlclient.lib(random.obj) : error LNK2019: unresolved external symbol __imp__CryptGenRandom@12 referenced in function "public: void __thiscall TaoCrypt::OS_Seed::GenerateSeed(unsigned char *,unsigned int)" (?GenerateSeed@OS_Seed@TaoCrypt@@QAEXPAEI@Z)
> mysql.exe : fatal error LNK1120: 17 unresolved externals
> NMAKE : fatal error U1077: '"C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.15.26726\bin\HostX86\x86\link.EXE"' : return code '0x460'
> Stop.
 => source failed verification.
Trying source 6 (type inline) of library mysql ...
+ cd /d D:\QtBuild\Src\config.tests\mysql && D:\QtBuild\Src\qtbase\bin\qmake.exe "CONFIG -= qt debug_and_release app_bundle lib_bundle" "CONFIG += static warn_off console single_arch" "QMAKE_LIBDIR += C:\\MySQL\\mysql-5.7.23-win32\\lib C:\\OpenSSL\\openssl-1.0.2l-vs2017\\lib" "INCLUDEPATH += C:\\MySQL\\mysql-5.7.23-win32\\include C:\\OpenSSL\\openssl-1.0.2l-vs2017\\include" "LIBS += -lmysqlclient" D:/QtBuild/Src/config.tests/mysql
+ cd /d D:\QtBuild\Src\config.tests\mysql && set MAKEFLAGS=& nmake clean && set MAKEFLAGS=& nmake
> Microsoft (R) Program Maintenance Utility Version 14.15.26726.0
> Copyright (C) Microsoft Corporation.  All rights reserved.
> 	del main.obj
> 	del mysql.vc.pdb mysql.ilk mysql.idb
> Microsoft (R) Program Maintenance Utility Version 14.15.26726.0
> Copyright (C) Microsoft Corporation.  All rights reserved.
> 	cl -c -nologo -Zc:wchar_t -FS -Zc:rvalueCast -Zc:inline -Zc:strictStrings -Zc:throwingNew -Zc:referenceBinding -Zi -MDd -W0 -EHsc /Fdmysql.vc.pdb -DUNICODE -D_UNICODE -DWIN32 -I. -IC:\MySQL\mysql-5.7.23-win32\include -IC:\OpenSSL\openssl-1.0.2l-vs2017\include -ID:\QtBuild\Src\qtbase\mkspecs\win32-msvc -Fo @C:\Users\cobra\AppData\Local\Temp\nmC3CF.tmp
> main.cpp
> 	link /NOLOGO /DYNAMICBASE /NXCOMPAT /DEBUG /SUBSYSTEM:CONSOLE "/MANIFESTDEPENDENCY:type='win32' name='Microsoft.Windows.Common-Controls' version='6.0.0.0' publicKeyToken='6595b64144ccf1df' language='*' processorArchitecture='*'" /MANIFEST:embed /OUT:mysql.exe @C:\Users\cobra\AppData\Local\Temp\nmC632.tmp
> LINK : warning LNK4098: defaultlib 'MSVCRT' conflicts with use of other libs; use /NODEFAULTLIB:library
> mysqlclient.lib(xml.obj) : error LNK2001: unresolved external symbol __imp__sprintf
> mysqlclient.lib(libmysql.obj) : error LNK2001: unresolved external symbol __imp__sprintf
> mysqlclient.lib(my_time.obj) : error LNK2001: unresolved external symbol __imp__sprintf
> mysqlclient.lib(client.obj) : error LNK2001: unresolved external symbol __imp__sprintf
> mysqlclient.lib(ctype.obj) : error LNK2001: unresolved external symbol __imp__sprintf
> mysqlclient.lib(my_init.obj) : error LNK2019: unresolved external symbol __imp__RegCloseKey@4 referenced in function _win32_have_tcpip
> mysqlclient.lib(my_init.obj) : error LNK2019: unresolved external symbol __imp__RegEnumValueA@32 referenced in function _win_init_registry
> mysqlclient.lib(my_init.obj) : error LNK2019: unresolved external symbol __imp__RegOpenKeyExA@20 referenced in function _win32_have_tcpip
> mysqlclient.lib(my_default.obj) : error LNK2001: unresolved external symbol __imp____iob_func
> mysqlclient.lib(log_client.obj) : error LNK2001: unresolved external symbol __imp____iob_func
> mysqlclient.lib(my_init.obj) : error LNK2001: unresolved external symbol __imp____iob_func
> mysqlclient.lib(my_winfile.obj) : error LNK2001: unresolved external symbol __imp____iob_func
> mysqlclient.lib(my_mess.obj) : error LNK2001: unresolved external symbol __imp____iob_func
> mysqlclient.lib(typelib.obj) : error LNK2001: unresolved external symbol __imp____iob_func
> mysqlclient.lib(my_mess.obj) : error LNK2019: unresolved external symbol __imp__fprintf referenced in function _my_message_stderr
> mysqlclient.lib(typelib.obj) : error LNK2001: unresolved external symbol __imp__fprintf
> mysqlclient.lib(log_client.obj) : error LNK2001: unresolved external symbol __imp__fprintf
> mysqlclient.lib(client_authentication.obj) : error LNK2019: unresolved external symbol "__declspec(dllimport) char const * __cdecl std::_Winerror_map(int)" (__imp_?_Winerror_map@std@@YAPBDH@Z) referenced in function "public: virtual class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > __thiscall std::_System_error_category::message(int)const " (?message@_System_error_category@std@@UBE?AV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@2@H@Z)
> mysqlclient.lib(sha2_password_common.obj) : error LNK2001: unresolved external symbol "__declspec(dllimport) char const * __cdecl std::_Winerror_map(int)" (__imp_?_Winerror_map@std@@YAPBDH@Z)
> mysqlclient.lib(my_default.obj) : error LNK2019: unresolved external symbol __imp__printf referenced in function _my_load_defaults
> mysqlclient.lib(ssl.obj) : error LNK2019: unresolved external symbol __imp___snprintf referenced in function _ya_SSL_ASN1_TIME_to_string
> mysqlclient.lib(log_client.obj) : error LNK2019: unresolved external symbol __imp__vfprintf referenced in function "void __cdecl error_log_vprint(enum error_log_level::type,char const *,char *)" (?error_log_vprint@@YAXW4type@error_log_level@@PBDPAD@Z)
> mysqlclient.lib(common.obj) : error LNK2019: unresolved external symbol __imp__EqualSid@8 referenced in function "public: bool __thiscall Sid::operator==(class Sid const &)" (??8Sid@@QAE_NABV0@@Z)
> mysqlclient.lib(common.obj) : error LNK2019: unresolved external symbol __imp__GetTokenInformation@20 referenced in function "public: __thiscall Sid::Sid(void *)" (??0Sid@@QAE@PAX@Z)
> mysqlclient.lib(common.obj) : error LNK2019: unresolved external symbol __imp__IsValidSid@4 referenced in function "public: bool __thiscall Sid::is_valid(void)const " (?is_valid@Sid@@QBE_NXZ)
> mysqlclient.lib(common.obj) : error LNK2019: unresolved external symbol __imp__LookupAccountNameW@28 referenced in function "public: __thiscall Sid::Sid(wchar_t const *)" (??0Sid@@QAE@PB_W@Z)
> mysqlclient.lib(random.obj) : error LNK2019: unresolved external symbol __imp__CryptAcquireContextA@20 referenced in function "public: __thiscall TaoCrypt::OS_Seed::OS_Seed(void)" (??0OS_Seed@TaoCrypt@@QAE@XZ)
> mysqlclient.lib(random.obj) : error LNK2019: unresolved external symbol __imp__CryptReleaseContext@8 referenced in function "public: __thiscall TaoCrypt::OS_Seed::~OS_Seed(void)" (??1OS_Seed@TaoCrypt@@QAE@XZ)
> mysqlclient.lib(random.obj) : error LNK2019: unresolved external symbol __imp__CryptGenRandom@12 referenced in function "public: void __thiscall TaoCrypt::OS_Seed::GenerateSeed(unsigned char *,unsigned int)" (?GenerateSeed@OS_Seed@TaoCrypt@@QAEXPAEI@Z)
> mysql.exe : fatal error LNK1120: 17 unresolved externals
> NMAKE : fatal error U1077: '"C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.15.26726\bin\HostX86\x86\link.EXE"' : return code '0x460'
> Stop.
 => source failed verification.
test config.sqldrivers.libraries.mysql FAILED
looking for library oci
Trying source 0 (type inline) of library oci ...
+ cd /d D:\QtBuild\Src\config.tests\oci && D:\QtBuild\Src\qtbase\bin\qmake.exe "CONFIG -= qt debug_and_release app_bundle lib_bundle" "CONFIG += static warn_off console single_arch" "QMAKE_LIBDIR += C:\\MySQL\\mysql-5.7.23-win32\\lib C:\\OpenSSL\\openssl-1.0.2l-vs2017\\lib" "INCLUDEPATH += C:\\MySQL\\mysql-5.7.23-win32\\include C:\\OpenSSL\\openssl-1.0.2l-vs2017\\include" "LIBS += -loci" D:/QtBuild/Src/config.tests/oci
+ cd /d D:\QtBuild\Src\config.tests\oci && set MAKEFLAGS=& nmake
> Microsoft (R) Program Maintenance Utility Version 14.15.26726.0
> Copyright (C) Microsoft Corporation.  All rights reserved.
> 	cl -c -nologo -Zc:wchar_t -FS -Zc:rvalueCast -Zc:inline -Zc:strictStrings -Zc:throwingNew -Zc:referenceBinding -Zi -MDd -W0 -EHsc /Fdoci.vc.pdb -DUNICODE -D_UNICODE -DWIN32 -I. -IC:\MySQL\mysql-5.7.23-win32\include -IC:\OpenSSL\openssl-1.0.2l-vs2017\include -ID:\QtBuild\Src\qtbase\mkspecs\win32-msvc -Fo @C:\Users\cobra\AppData\Local\Temp\nmC6EC.tmp
> main.cpp
> .\main.cpp(2): fatal error C1083: Cannot open include file: 'oci.h': No such file or directory
> NMAKE : fatal error U1077: '"C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.15.26726\bin\HostX86\x86\cl.EXE"' : return code '0x2'
> Stop.

Any ideas how to make it compile with the static library? Thanks.

Cobra91151

@SGaist said in Qt static with MySQL issue:

MT and MD are just related to the Windows runtime type you'll be using.

The issue must be with this. I checked Qt configure log and the same errors are displayed with MFC static test project in VS 2017.

alt text

LINK : warning LNK4098: defaultlib 'MSVCRT' conflicts with use of other libs; use /NODEFAULTLIB:library
1>mysqlclient.lib(xml.obj) : error LNK2001: unresolved external symbol __imp__sprintf
1>mysqlclient.lib(libmysql.obj) : error LNK2001: unresolved external symbol __imp__sprintf
1>mysqlclient.lib(my_time.obj) : error LNK2001: unresolved external symbol __imp__sprintf
1>mysqlclient.lib(client.obj) : error LNK2001: unresolved external symbol __imp__sprintf
1>mysqlclient.lib(ctype.obj) : error LNK2001: unresolved external symbol __imp__sprintf
1>mysqlclient.lib(my_error.obj) : error LNK2001: unresolved external symbol __imp__strcat_s
1>mysqlclient.lib(my_error.obj) : error LNK2001: unresolved external symbol __imp__strerror_s
1>mysqlclient.lib(my_init.obj) : error LNK2001: unresolved external symbol __imp__strdup
1>mysqlclient.lib(yassl_int.obj) : error LNK2001: unresolved external symbol __imp__strdup
1>OLDNAMES.lib(strdup.obi) : error LNK2001: unresolved external symbol __imp__strdup
1>mysqlclient.lib(my_default.obj) : error LNK2001: unresolved external symbol __imp____iob_func
1>mysqlclient.lib(log_client.obj) : error LNK2001: unresolved external symbol __imp____iob_func
1>mysqlclient.lib(my_init.obj) : error LNK2001: unresolved external symbol __imp____iob_func
1>mysqlclient.lib(my_winfile.obj) : error LNK2001: unresolved external symbol __imp____iob_func
1>mysqlclient.lib(my_mess.obj) : error LNK2001: unresolved external symbol __imp____iob_func
1>mysqlclient.lib(typelib.obj) : error LNK2001: unresolved external symbol __imp____iob_func
1>mysqlclient.lib(my_init.obj) : error LNK2001: unresolved external symbol __imp__putenv

It leads to Qt configure errors. For some reason it conflicts with MSVCRT lib.

Cobra91151

I have run some tests on another PC, the same errors are present there. So, I think the mysqlclient is build for another compiler, maybe, MinGW or older VS versions. I need to find the MySQL source code and compile mysqlclient (static) lib for Visual Studio 2017. Any ideas where I can find it? Thanks.

Cobra91151

I have found the source code here: https://dev.mysql.com/downloads/mysql/
Now I will read docs how to compile it.

Cobra91151

I have built the MySQL libs, added to the MFC test project and it displays the same errors. It's strange. Next, I will install virtual machine, VS 2015 and build the test project there.

Cobra91151

I have found the issue and built the MySQL libs. Then I reconfigure Qt, all built well but when I build my project I get the issue:

So, mysqlclient.lib already has the OpenSSL?

Also, I have the issue with debugging the app:

I have the debug version of the library, but I want to know how to add it to the configure? I have tried: MYSQL_LIBS_DEBUG/MYSQL_LIBS_RELEASE but it fails with detection of MySQL. Any ideas? Thanks.

Cobra91151

I have found that I must have the OpenSSL built statically as /MD runtime lib in order to compile my project. The question is where to get such library or source code? Thanks in advance.