gcc, 64 bit, oracle, solaris - oracle

Question

info#s490up # gcc -std=gnu99 -o bla -g -O2 -DSunOS=1 -D_FILE_OFFSET_BITS=64 -D_LARGE_FILES= -I/usr/include/libxml2 -I/u/app/oracle/product/11.2/rdbms/demo -I/u/app/oracle/product/11.2/rdbms/public -I/u/app/oracle/product/11.2/rdbms/demo -I/u/app/oracle/product/11.2/rdbms/public blabla.c -lclntsh -lrt -lresolv -lnsl -lsocket -lm -lpthread -liconv -L/usr/lib -R/usr/lib -lxml2 -lz -lpthread -lm -lsocket -lnsl -L/u/app/oracle/product/11.2/lib
ld: fatal: file /u/app/oracle/product/11.2/lib/libclntsh.so: wrong ELF class: ELFCLASS64
ld: fatal: File processing errors. No output written to bla
collect2: ld returned 1 exit status
Can anyone give me an idea why ld does not work correctly here
(this long command has been taken from configure which is not performing right, because of this error)
UPD
file /u/app/oracle/product/11.2/lib/libclntsh.so
/u/app/oracle/product/11.2/lib/libclntsh.so: ELF 64-bit MSB dynamic lib SPARCV9 Version 1, dynamically linked, not stripped
The blabla.c:
info#s490up # cat /tmp/blabla.c
/* confdefs.h. */
#define PACKAGE_NAME ""
#define PACKAGE_TARNAME ""
#define PACKAGE_VERSION ""
#define PACKAGE_STRING ""
#define PACKAGE_BUGREPORT ""
#define GW_NAME "Kannel"
#define GW_VERSION "1.4.3"
#define VERSION "1.4.3"
#define YYTEXT_POINTER 1
#define _FILE_OFFSET_BITS 64
#define STDC_HEADERS 1
#define HAVE_SYS_TYPES_H 1
#define HAVE_SYS_STAT_H 1
#define HAVE_STDLIB_H 1
#define HAVE_STRING_H 1
#define HAVE_MEMORY_H 1
#define HAVE_STRINGS_H 1
#define HAVE_INTTYPES_H 1
#define HAVE_STDINT_H 1
#define HAVE_UNISTD_H 1
#define SIZEOF_SHORT 2
#define SIZEOF_INT 4
#define SIZEOF_LONG 4
#define SIZEOF_LONG_LONG 8
#define HAVE_LIBM 1
#define HAVE_LIBSOCKET 1
#define HAVE_LIBNSL 1
#define HAVE_LIBRESOLV 1
#define STDC_HEADERS 1
#define HAVE_SYS_IOCTL_H 1
#define HAVE_SYS_TIME_H 1
#define HAVE_SYS_TYPES_H 1
#define HAVE_UNISTD_H 1
#define HAVE_SYS_POLL_H 1
#define HAVE_PTHREAD_H 1
#define HAVE_GETOPT_H 1
#define HAVE_SYSLOG_H 1
#define HAVE_ICONV_H 1
#define HAVE_ZLIB_H 1
#define HAVE_STDLIB_H 1
#define HAVE_SYS_SOCKET_H 1
#define HAVE_SYS_SOCKIO_H 1
#define HAVE_NETINET_IN_H 1
#define HAVE_NET_IF_H 1
#define HAVE___FUNCTION__ 1
#define HAVE___FUNC__ 1
#define HAVE_GETTIMEOFDAY 1
#define HAVE_SELECT 1
#define HAVE_SOCKET 1
#define HAVE_STRDUP 1
#define HAVE_GETOPT_LONG 1
#define HAVE_LOCALTIME_R 1
#define HAVE_GMTIME_R 1
#define HAVE_SRANDOM 1
#define HAVE_FUNC_GETHOSTBYNAME_R_5 1
#define HAVE_SOCKLEN_T 1
#define HAVE_GETOPT_IN_STDIO_H 1
#define HAVE_REGEX_H 1
#define HAVE_REGEX 1
#define HAVE_PTHREAD_SPINLOCK_T 1
#define HAVE_PTHREAD_RWLOCK 1
#define HAVE_LIBRT 1
#define HAVE_SEMAPHORE 1
#define SUFFIX ""
#define USE_GWMEM_NATIVE 1
#define LOG_TIMESTAMP_LOCALTIME 1
#define ENABLE_COOKIES 1
#define USE_KEEPALIVE 1
/* end confdefs.h. */
/* Override any GCC internal prototype to avoid an error.
Use char because int might match the return type of a GCC
builtin and then its argument prototype would still apply. */
#ifdef __cplusplus
extern "C"
#endif
char OCIEnvCreate ();
int
main ()
{
return OCIEnvCreate ();
;
return 0;
}

Answer 1

libclntsh.so is a 64 bit binary library which you are linking with a 32bit code. Check to make sure you have the right library.
Edit:
ELF 64-bit MSB dynamic lib SPARCV9
Version 1, dynamically linked, not
stripped
GCC 64-bit toolchain is having trouble linking against a library built on Sparc platform which could mean either one of two things
Endianess? One thing that is not clear, what platform are you running the gcc toolchain under?
Issue this command gcc --version and also run this command file /usr/bin/gcc to determine the executable's binary type. And compare the results with what's the library's binary type is...