gil_release_version.h is:
/* begin */
1: #ifndef GIL_RELEASE_VERSION_H
2: #define GIL_RELEASE_VERSION_H
3: #endif
/* end */

unicode_support_version.h is:
/* begin */
1: #ifndef UNICODE_SUPPORT_VERSION_H
2: #define UNICODE_SUPPORT_VERSION_H
3: #endif
/* end */

have_library: checking for SQLConnect() in -ldb2cli... -------------------- yes

PATH=".;C:/Ruby31/lib;C:\Users\pnarayanappa\Python\Python310\Scripts\;C:\Users\pnarayanappa\Python\Python310\;C:\Program Files\Python37\Scripts\;C:\Program Files\Python37\;C:\Program Files (x86)\Common Files\Oracle\Java\javapath;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files\ibm\gsk8\lib64;C:\Program Files (x86)\ibm\gsk8\lib;C:\Program Files\Java\jre1.8.0_231\bin;C:\Program Files\Microsoft SQL Server\130\Tools\Binn\;C:\Program Files\PuTTY\;C:\Program Files\Git\cmd;C:\Program Files\OpenSSH-Win64;C:\Program Files\Microsoft SQL Server\110\Tools\Binn\;C:\Program Files\Microsoft SQL Server\120\Tools\Binn\;C:\Users\pnarayanappa\AppData\Roaming\Python\Python37\Scripts\;C:\Users\pnarayanappa\eclipse-workspace-git-Dj-3_2_9_Py-3_10_5\myvenv\Lib\site-packages;C:\PROGRA~1\IBM\SQLLIB\BIN;C:\PROGRA~1\IBM\SQLLIB\FUNCTION;C:\PROGRA~1\IBM\SQLLIB\SAMPLES\REPL;C:\Program Files\dotnet\;C:\Program Files\Microsoft SQL Server\Client SDK\ODBC\170\Tools\Binn\;C:\Program Files (x86)\Microsoft SDKs\TypeScript\1.0\;C:\Ruby31\bin;C:\mingw-w64\i686-8.1.0-posix-dwarf-rt_v6-rev0\mingw32\bin;C:\Users\pnarayanappa\AppData\Local\Programs\Microsoft VS Code\bin;C:\Users\pnarayanappa\.dotnet\tools" "gcc -o conftest.exe -IC:/Ruby31/include/ruby-3.1.0/i386-mingw32 -IC:/Ruby31/include/ruby-3.1.0/ruby/backward -IC:/Ruby31/include/ruby-3.1.0 -I. -IC:/Users/pnarayanappa/ruby-ibmdb/IBM_DB_Adapter/ibm_db/ext/../lib/clidriver/include -D__USE_MINGW_ANSI_STDIO=1 -DFD_SETSIZE=2048 -D_WIN32_WINNT=0x0600 -D__MINGW_USE_VC2005_COMPAT -D_FILE_OFFSET_BITS=64  -O3 -fno-fast-math -fstack-protector-strong conftest.c  -L. -LC:/Ruby31/lib -LC:/Users/pnarayanappa/ruby-ibmdb/IBM_DB_Adapter/ibm_db/ext/../lib/clidriver/lib -L. -pipe -s -fstack-protector-strong -Wl,--no-as-needed     -lmsvcrt-ruby310  -lshell32 -lws2_32 -liphlpapi -limagehlp -lshlwapi -lbcrypt  "
checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: #include <winsock2.h>
4: #include <windows.h>
5: int main(int argc, char **argv)
6: {
7:   return !!argv[argc];
8: }
/* end */

PATH=".;C:/Ruby31/lib;C:\Users\pnarayanappa\Python\Python310\Scripts\;C:\Users\pnarayanappa\Python\Python310\;C:\Program Files\Python37\Scripts\;C:\Program Files\Python37\;C:\Program Files (x86)\Common Files\Oracle\Java\javapath;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files\ibm\gsk8\lib64;C:\Program Files (x86)\ibm\gsk8\lib;C:\Program Files\Java\jre1.8.0_231\bin;C:\Program Files\Microsoft SQL Server\130\Tools\Binn\;C:\Program Files\PuTTY\;C:\Program Files\Git\cmd;C:\Program Files\OpenSSH-Win64;C:\Program Files\Microsoft SQL Server\110\Tools\Binn\;C:\Program Files\Microsoft SQL Server\120\Tools\Binn\;C:\Users\pnarayanappa\AppData\Roaming\Python\Python37\Scripts\;C:\Users\pnarayanappa\eclipse-workspace-git-Dj-3_2_9_Py-3_10_5\myvenv\Lib\site-packages;C:\PROGRA~1\IBM\SQLLIB\BIN;C:\PROGRA~1\IBM\SQLLIB\FUNCTION;C:\PROGRA~1\IBM\SQLLIB\SAMPLES\REPL;C:\Program Files\dotnet\;C:\Program Files\Microsoft SQL Server\Client SDK\ODBC\170\Tools\Binn\;C:\Program Files (x86)\Microsoft SDKs\TypeScript\1.0\;C:\Ruby31\bin;C:\mingw-w64\i686-8.1.0-posix-dwarf-rt_v6-rev0\mingw32\bin;C:\Users\pnarayanappa\AppData\Local\Programs\Microsoft VS Code\bin;C:\Users\pnarayanappa\.dotnet\tools" "gcc -o conftest.exe -IC:/Ruby31/include/ruby-3.1.0/i386-mingw32 -IC:/Ruby31/include/ruby-3.1.0/ruby/backward -IC:/Ruby31/include/ruby-3.1.0 -I. -IC:/Users/pnarayanappa/ruby-ibmdb/IBM_DB_Adapter/ibm_db/ext/../lib/clidriver/include -D__USE_MINGW_ANSI_STDIO=1 -DFD_SETSIZE=2048 -D_WIN32_WINNT=0x0600 -D__MINGW_USE_VC2005_COMPAT -D_FILE_OFFSET_BITS=64  -O3 -fno-fast-math -fstack-protector-strong conftest.c  -L. -LC:/Ruby31/lib -LC:/Users/pnarayanappa/ruby-ibmdb/IBM_DB_Adapter/ibm_db/ext/../lib/clidriver/lib -L. -pipe -s -fstack-protector-strong -Wl,--no-as-needed     -lmsvcrt-ruby310 -ldb2cli  -lshell32 -lws2_32 -liphlpapi -limagehlp -lshlwapi -lbcrypt  "
conftest.c: In function 't':
conftest.c:17:57: error: 'SQLConnect' undeclared (first use in this function); did you mean 'WSAConnect'?
 int t(void) { void ((*volatile p)()); p = (void ((*)()))SQLConnect; return !p; }
                                                         ^~~~~~~~~~
                                                         WSAConnect
conftest.c:17:57: note: each undeclared identifier is reported only once for each function it appears in
checked program was:
/* begin */
 1: #include "ruby.h"
 2: 
 3: #include <winsock2.h>
 4: #include <windows.h>
 5: 
 6: /*top*/
 7: extern int t(void);
 8: int main(int argc, char **argv)
 9: {
10:   if (argc > 1000000) {
11:     int (* volatile tp)(void)=(int (*)(void))&t;
12:     printf("%d", (*tp)());
13:   }
14: 
15:   return !!argv[argc];
16: }
17: int t(void) { void ((*volatile p)()); p = (void ((*)()))SQLConnect; return !p; }
/* end */

PATH=".;C:/Ruby31/lib;C:\Users\pnarayanappa\Python\Python310\Scripts\;C:\Users\pnarayanappa\Python\Python310\;C:\Program Files\Python37\Scripts\;C:\Program Files\Python37\;C:\Program Files (x86)\Common Files\Oracle\Java\javapath;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files\ibm\gsk8\lib64;C:\Program Files (x86)\ibm\gsk8\lib;C:\Program Files\Java\jre1.8.0_231\bin;C:\Program Files\Microsoft SQL Server\130\Tools\Binn\;C:\Program Files\PuTTY\;C:\Program Files\Git\cmd;C:\Program Files\OpenSSH-Win64;C:\Program Files\Microsoft SQL Server\110\Tools\Binn\;C:\Program Files\Microsoft SQL Server\120\Tools\Binn\;C:\Users\pnarayanappa\AppData\Roaming\Python\Python37\Scripts\;C:\Users\pnarayanappa\eclipse-workspace-git-Dj-3_2_9_Py-3_10_5\myvenv\Lib\site-packages;C:\PROGRA~1\IBM\SQLLIB\BIN;C:\PROGRA~1\IBM\SQLLIB\FUNCTION;C:\PROGRA~1\IBM\SQLLIB\SAMPLES\REPL;C:\Program Files\dotnet\;C:\Program Files\Microsoft SQL Server\Client SDK\ODBC\170\Tools\Binn\;C:\Program Files (x86)\Microsoft SDKs\TypeScript\1.0\;C:\Ruby31\bin;C:\mingw-w64\i686-8.1.0-posix-dwarf-rt_v6-rev0\mingw32\bin;C:\Users\pnarayanappa\AppData\Local\Programs\Microsoft VS Code\bin;C:\Users\pnarayanappa\.dotnet\tools" "gcc -o conftest.exe -IC:/Ruby31/include/ruby-3.1.0/i386-mingw32 -IC:/Ruby31/include/ruby-3.1.0/ruby/backward -IC:/Ruby31/include/ruby-3.1.0 -I. -IC:/Users/pnarayanappa/ruby-ibmdb/IBM_DB_Adapter/ibm_db/ext/../lib/clidriver/include -D__USE_MINGW_ANSI_STDIO=1 -DFD_SETSIZE=2048 -D_WIN32_WINNT=0x0600 -D__MINGW_USE_VC2005_COMPAT -D_FILE_OFFSET_BITS=64  -O3 -fno-fast-math -fstack-protector-strong conftest.c  -L. -LC:/Ruby31/lib -LC:/Users/pnarayanappa/ruby-ibmdb/IBM_DB_Adapter/ibm_db/ext/../lib/clidriver/lib -L. -pipe -s -fstack-protector-strong -Wl,--no-as-needed     -lmsvcrt-ruby310 -ldb2cli  -lshell32 -lws2_32 -liphlpapi -limagehlp -lshlwapi -lbcrypt  "
checked program was:
/* begin */
 1: #include "ruby.h"
 2: 
 3: #include <winsock2.h>
 4: #include <windows.h>
 5: 
 6: /*top*/
 7: extern int t(void);
 8: int main(int argc, char **argv)
 9: {
10:   if (argc > 1000000) {
11:     int (* volatile tp)(void)=(int (*)(void))&t;
12:     printf("%d", (*tp)());
13:   }
14: 
15:   return !!argv[argc];
16: }
17: extern void SQLConnect();
18: int t(void) { SQLConnect(); return 0; }
/* end */

--------------------

have_header: checking for gil_release_version.h... -------------------- yes

PATH=".;C:/Ruby31/lib;C:\Users\pnarayanappa\Python\Python310\Scripts\;C:\Users\pnarayanappa\Python\Python310\;C:\Program Files\Python37\Scripts\;C:\Program Files\Python37\;C:\Program Files (x86)\Common Files\Oracle\Java\javapath;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files\ibm\gsk8\lib64;C:\Program Files (x86)\ibm\gsk8\lib;C:\Program Files\Java\jre1.8.0_231\bin;C:\Program Files\Microsoft SQL Server\130\Tools\Binn\;C:\Program Files\PuTTY\;C:\Program Files\Git\cmd;C:\Program Files\OpenSSH-Win64;C:\Program Files\Microsoft SQL Server\110\Tools\Binn\;C:\Program Files\Microsoft SQL Server\120\Tools\Binn\;C:\Users\pnarayanappa\AppData\Roaming\Python\Python37\Scripts\;C:\Users\pnarayanappa\eclipse-workspace-git-Dj-3_2_9_Py-3_10_5\myvenv\Lib\site-packages;C:\PROGRA~1\IBM\SQLLIB\BIN;C:\PROGRA~1\IBM\SQLLIB\FUNCTION;C:\PROGRA~1\IBM\SQLLIB\SAMPLES\REPL;C:\Program Files\dotnet\;C:\Program Files\Microsoft SQL Server\Client SDK\ODBC\170\Tools\Binn\;C:\Program Files (x86)\Microsoft SDKs\TypeScript\1.0\;C:\Ruby31\bin;C:\mingw-w64\i686-8.1.0-posix-dwarf-rt_v6-rev0\mingw32\bin;C:\Users\pnarayanappa\AppData\Local\Programs\Microsoft VS Code\bin;C:\Users\pnarayanappa\.dotnet\tools" "gcc -IC:/Ruby31/include/ruby-3.1.0/i386-mingw32 -IC:/Ruby31/include/ruby-3.1.0/ruby/backward -IC:/Ruby31/include/ruby-3.1.0 -I. -IC:/Users/pnarayanappa/ruby-ibmdb/IBM_DB_Adapter/ibm_db/ext/../lib/clidriver/include -D__USE_MINGW_ANSI_STDIO=1 -DFD_SETSIZE=2048 -D_WIN32_WINNT=0x0600 -D__MINGW_USE_VC2005_COMPAT -D_FILE_OFFSET_BITS=64  -O3 -fno-fast-math -fstack-protector-strong   -c conftest.c"
checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: #include <winsock2.h>
4: #include <windows.h>
5: #include <gil_release_version.h>
/* end */

--------------------

have_header: checking for unicode_support_version.h... -------------------- yes

PATH=".;C:/Ruby31/lib;C:\Users\pnarayanappa\Python\Python310\Scripts\;C:\Users\pnarayanappa\Python\Python310\;C:\Program Files\Python37\Scripts\;C:\Program Files\Python37\;C:\Program Files (x86)\Common Files\Oracle\Java\javapath;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files\ibm\gsk8\lib64;C:\Program Files (x86)\ibm\gsk8\lib;C:\Program Files\Java\jre1.8.0_231\bin;C:\Program Files\Microsoft SQL Server\130\Tools\Binn\;C:\Program Files\PuTTY\;C:\Program Files\Git\cmd;C:\Program Files\OpenSSH-Win64;C:\Program Files\Microsoft SQL Server\110\Tools\Binn\;C:\Program Files\Microsoft SQL Server\120\Tools\Binn\;C:\Users\pnarayanappa\AppData\Roaming\Python\Python37\Scripts\;C:\Users\pnarayanappa\eclipse-workspace-git-Dj-3_2_9_Py-3_10_5\myvenv\Lib\site-packages;C:\PROGRA~1\IBM\SQLLIB\BIN;C:\PROGRA~1\IBM\SQLLIB\FUNCTION;C:\PROGRA~1\IBM\SQLLIB\SAMPLES\REPL;C:\Program Files\dotnet\;C:\Program Files\Microsoft SQL Server\Client SDK\ODBC\170\Tools\Binn\;C:\Program Files (x86)\Microsoft SDKs\TypeScript\1.0\;C:\Ruby31\bin;C:\mingw-w64\i686-8.1.0-posix-dwarf-rt_v6-rev0\mingw32\bin;C:\Users\pnarayanappa\AppData\Local\Programs\Microsoft VS Code\bin;C:\Users\pnarayanappa\.dotnet\tools" "gcc -IC:/Ruby31/include/ruby-3.1.0/i386-mingw32 -IC:/Ruby31/include/ruby-3.1.0/ruby/backward -IC:/Ruby31/include/ruby-3.1.0 -I. -IC:/Users/pnarayanappa/ruby-ibmdb/IBM_DB_Adapter/ibm_db/ext/../lib/clidriver/include -D__USE_MINGW_ANSI_STDIO=1 -DFD_SETSIZE=2048 -D_WIN32_WINNT=0x0600 -D__MINGW_USE_VC2005_COMPAT -D_FILE_OFFSET_BITS=64  -O3 -fno-fast-math -fstack-protector-strong   -c conftest.c"
checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: #include <winsock2.h>
4: #include <windows.h>
5: #include <unicode_support_version.h>
/* end */

--------------------