Hi. I have an esql/c program which runs a cursor with 45 returned columns. It has worked fine on a 32 bit machine for many years but when I tried compiling it on a 64 bit one (with 64 bit informix libs) it hangs indefinately on the first fetch.

Other database activity works fine and I can make a simpler cursor in the same position in the code and that works also. My program is multi threaded and is built thus:

esql -thread -local  -Isource -IC_Declarations -fPIC -xc -g -ggdb -funsigned-char -Wimplicit -Wunused -Wall -Wno-format -x c -DLINUX -DBITS="\"X64\"" -DBUILD_DATE="\"Fri 17:47 10 Feb 2012\"" -DOPEN_KEY -DNO_MTMALLOC -D_REENTRANT -I/usr/local/informix/incl/esql -I/usr/local/informix/incl/public -e -I/usr/local/informix/incl/esql  source/Databases/ExportDaemon_IFX.ec -o source/Databases/ExportDaemon_IFX.c

mv ExportDaemon_IFX.c objects

g++ -Isource -IC_Declarations -fPIC -xc -g -ggdb -funsigned-char -Wimplicit -Wunused -Wall -Wno-format -x c -DLINUX -DBITS="\"X64\"" -DBUILD_DATE="\"Fri 17:47 10 Feb 2012\"" -DOPEN_KEY -DNO_MTMALLOC -D_REENTRANT -I/usr/local/informix/incl/esql -I/usr/local/informix/incl/public -DIFX_THREAD -c -o objects/ExportDaemon_IFX.o objects/ExportDaemon_IFX.c

g++ -Isource -IC_Declarations -fPIC -xc -g -ggdb -funsigned-char -Wimplicit -Wunused -Wall -Wno-format -x c -DLINUX -DBITS="\"X64\"" -DBUILD_DATE="\"Fri 17:47 10 Feb 2012\"" -DOPEN_KEY -DNO_MTMALLOC -D_REENTRANT -c -o objects/LinkDate.o  source/tools/LinkDate.c

g++ -rdynamic -o products/ExportDaemon objects/ExportDaemon.o objects/ExportDaemon_IFX.o objects/LinkDate.o -Llibs -lrt -lztools -lm -lnsl -ldl -lpthread -lz -lc -Lsource/tools/libs -lconfig_X64 /usr/local/informix/lib/esql/checkapi.o -L/lib -L/usr/local/informix/lib -L/usr/local/informix/lib/esql -lthsql -lthasf -lthgen -lthos -lifgls -lpthread -lm -ldl -lcrypt -lifglx

and the cursor is this:

select ID, NVL(Market_Uid,-1), Opcode, datagroup,
NVL(text1,'~'),
NVL(text2,'~'),
NVL(text3,'~'),
NVL(text4,'~'),
NVL(text5,'~'),
NVL(text6,'~'),
NVL(text7,'~'),
NVL(text8,'~'),
NVL(text9,'~'),
'~', '~', '~', '~', '~', '~',
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
NVL(int1,-9999),
NVL(int2,-9999),
NVL(int3,-9999),
NVL(int4,-9999),
NVL(int5,-9999),
NVL(int6,-9999),
NVL(int7,-9999),
NVL(int8,-9999),
NVL(int9,-9999),
0,
' ', ' ', ' ', ' ', ' ',
0.0, 0.0, 0.0, 0.0, 0.0
from ExportGeneric3 order by ID

I traced the esql preprocessed C file and it hangs on this call:

sqli_curs_fetch(ESQLINTVERSION, sqli_curs_locate(ESQLINTVERSION, _Cn2, 256), (ifx_sqlda_t *)0, _SD0, (char *)0, &_FS1);

after all the binding is complete.

Any advice would be most welcome...