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Compile errors with MinGW/CygWin/CDT [message #1742270]

Thu, 01 September 2016 10:19

Michael Pedersen

Messages: 3
Registered: September 2016

Junior Member

I am creating a C program that needs to connect to a MYSQL client. Unfortunately I have hit a brick wall when trying to compile it, whether using MinGW or Cygwin. So I decided to try out some code I found on the following website, the "Retrieving data from the database" example.

http://zetcode.com/db/mysqlc/

I've made four projects in my workspace, for each combination of MinGW/Cygwin and External/Internal Builder, and attached said workspace here so everyone can see the settings I've used for each project.

Unfortunately I get compilation errors for all four projects, and I've been unable to figure out why. I've made sure to add the include and lib folders for both MySQL Server and the C Connector, and added mysql and mysqlclient libraries, as suggested by several posts I found while trying to figure out these problems. With some of the projects, the error comes from the automatic makefile Eclipse provides, but I can't see any problems with space or tabs therein, which has been the problem when I researched other people who got the same error message.

So here are the error messages I get for each project:

Cygwin/External:

make clean 
Error on line 7: expecting target : dependencies
make all 
Error on line 7: expecting target : dependencies

Cygwin/Internal:

Info: Internal Builder is used for build
gcc "-IC:\\Program Files\\MySQL\\MySQL Server 5.7\\include" "-IC:\\Program Files\\MySQL\\Connector.C++ 1.1\\include" -O3 -Wall -c -fmessage-length=0 -o Test.o "..\\Test.c" 
In file included from ..\Test.c:1:0:
C:\Program Files\MySQL\MySQL Server 5.7\include/my_global.h:672:3: error: unknown type name 'FILETIME'
   FILETIME ft;
   ^
C:\Program Files\MySQL\MySQL Server 5.7\include/my_global.h:673:3: error: unknown type name '__int64'
   __int64 i64;
   ^
C:\Program Files\MySQL\MySQL Server 5.7\include/my_global.h:676:8: error: redefinition of 'struct timespec'
 struct timespec {
        ^
In file included from /usr/include/sys/timespec.h:38:0,
                 from /usr/include/sys/select.h:27,
                 from /usr/include/sys/types.h:68,
                 from /usr/include/stdio.h:61,
                 from C:\Program Files\MySQL\MySQL Server 5.7\include/my_global.h:41,
                 from ..\Test.c:1:
/usr/include/sys/_timespec.h:45:8: note: originally defined here
 struct timespec {
        ^
In file included from ..\Test.c:1:0:
C:\Program Files\MySQL\MySQL Server 5.7\include/my_global.h: In function 'set_timespec_nsec':
C:\Program Files\MySQL\MySQL Server 5.7\include/my_global.h:702:3: warning: implicit declaration of function 'GetSystemTimeAsFileTime' [-Wimplicit-function-declaration]
   GetSystemTimeAsFileTime(&tv.ft);
   ^
C:\Program Files\MySQL\MySQL Server 5.7\include/my_global.h:703:30: error: '__int64' undeclared (first use in this function)
   abstime->tv.i64= tv.i64 + (__int64)(nsec / 100);
                              ^
C:\Program Files\MySQL\MySQL Server 5.7\include/my_global.h:703:30: note: each undeclared identifier is reported only once for each function it appears in

MinGW/External:

make clean 
Error on line 7: expecting target : dependencies
make all 
Error on line 7: expecting target : dependencies

MinGW/Internal:

Info: Internal Builder is used for build
gcc -std=c99 "-IC:\\Program Files\\MySQL\\MySQL Server 5.7\\include" "-IC:\\Program Files\\MySQL\\Connector.C++ 1.1\\include" -O3 -Wall -c -fmessage-length=0 -o Test.o "..\\Test.c" 
In file included from ..\Test.c:1:0:
C:\Program Files\MySQL\MySQL Server 5.7\include/my_global.h:220:19: error: conflicting types for 'mode_t'
 typedef int       mode_t;
                   ^
In file included from c:\mingw\include\io.h:56:0,
                 from C:\Program Files\MySQL\MySQL Server 5.7\include/my_global.h:38,
                 from ..\Test.c:1:
c:\mingw\include\sys\types.h:205:19: note: previous declaration of 'mode_t' was here
 typedef _mode_t   mode_t;
                   ^
In file included from C:\Program Files\MySQL\MySQL Server 5.7\include/my_global.h:631:0,
                 from ..\Test.c:1:
C:\Program Files\MySQL\MySQL Server 5.7\include/my_dbug.h:130:20: fatal error: crtdbg.h: No such file or directory
compilation terminated.

I am not well versed in writing C code, so despite a lot of research, and trying out different solutions, I have been unable to figure out the problems. Also, I am running 64 bit Windows 7 and my program will be running on that too. I even tried compiling the projects on 64 bit Linux Mint, but got the same errors there.

I only need to get one of the four projects to compile, so I can then try out that solution on my own project, so solving all four compilation errors isn't necessary to me, I've just tried out all those combinations in the hopes of finding one that would just compile without errors, but in vain.

So I hope someone can tell from the errors messages and my uploaded workspace, what the problems are and how to solve at least one of those problems.