Linking error (cygwin, make, windows, sql)

PG <>
Sat, 8 Mar 2008 12:21:40 -0600 (CST)
I am trying to compile a simple ODBC and C example on Windows XP SP2.
I have Cygwin_NT 5.1.

This is the code (obtained from
i am attempting to compile.


#include <stdio.h>
#include <windows.h>
#include <sql.h>
#include <sqlext.h>

main() {
  SQLHENV env;
  char dsn[256];
  char desc[256];
  SQLSMALLINT dsn_ret;
  SQLSMALLINT desc_ret;
  SQLUSMALLINT direction;

  SQLSetEnvAttr(env, SQL_ATTR_ODBC_VERSION, (void *) SQL_OV_ODBC3, 0);

  direction = SQL_FETCH_FIRST;
  while(SQL_SUCCEEDED(ret = SQLDataSources(env, direction,
                                           dsn, sizeof(dsn), &dsn_ret,
                                           desc, sizeof(desc),
&desc_ret))) {
    direction = SQL_FETCH_NEXT;
    printf("%s - %s\n", dsn, desc);
    if (ret == SQL_SUCCESS_WITH_INFO) printf("\tdata truncation\n");



INCPATH=-I/usr/include -Iinclude
LIBS=-L. -lodbc32
all: clean ODBCTest.exe

ODBCTest.o : ODBCTest.c
        $(CC) $(INCPATH) $(CFLAGS) -o ODBCTest.o -c ODBCTest.c
ODBCTest.exe : ODBCTest.o
        $(CC) $(LIBS) $(CFLAGS) -o ODBCTest.exe ODBCTest.o
        -rm *.o
        -rm *.exe

Make output and Errors:

$ make
rm *.o
rm *.exe
rm: cannot remove `*.exe': No such file or directory
make: [clean] Error 1 (ignored)
gcc -I/usr/include -Iinclude -o ODBCTest.o -c ODBCTest.c
gcc -L. -lodbc32 -o ODBCTest.exe ODBCTest.o
ODBCTest.o:ODBCTest.c:(.text+0x4a): undefined reference to
ODBCTest.o:ODBCTest.c:(.text+0x70): undefined reference to
ODBCTest.o:ODBCTest.c:(.text+0xca): undefined reference to
collect2: ld returned 1 exit status
make: *** [ODBCTest.exe] Error 1

Things i have checked:
libodbc32.a exists in c:\cygwin\lib\w32api.
If i remove the above lib, i get a "lib not found" kind of error when
i run make, meaning this is the lib make is using and there is no path
if i edit libodbc32.a in a binary editor, i can see the all the three
functions mentioned in the error (_SQLAllocHandle@12,
_SQLSetEnvAttr@16 and _SQLDataSources@32) exist.

How can i fix these linking errors?


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