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help!
- To: gsl-discuss@sourceware.cygnus.com
- Subject: help!
- From: jin min ho <amaz@netra.lgic.co.kr>
- Date: Sat, 27 Feb 1999 10:49:10 +0900
- Organization: LGIC
please help me with linking gsl!
until i downloaded gsl-0.4.1 and installed it,it seemed that there was
no problem with it.
but when i link my first code to gsl rng, there was an link error.
it repoted that "undefined reference to gsl_rng_env_setup and etc.
it seemed that my gcc couldn't find gsl.
here is my makefile and source code. what's wrong with my code ?
my linux box : redhat linux 5.2
gcc version : 2.7.2.3
egcs version : 1.0.3
my gcc report :
/tmp/cca017371.o: In function 'main':
/tmp/cca017371.o(.text+0x4): undefined reference to 'gsl_rng_env_setup'
/tmp/cca017371.o(.text+0x9): undefined reference to 'gsl_rng_default'
/tmp/cca017371.o(.text+0xf): undefined reference to 'gsl_rng_alloc'
/tmp/cca017371.o(.text+0x24): undefined reference to 'gsl_rng_name'
/tmp/cca017371.o(.text+0x3c): undefined reference to 'gsl_rng_default_seed'
/tmp/cca017371.o(.text+0x55): undefined reference to 'gsl_rng_get'
make: *** [rngtest.out] Error 1
my source code :
#include <stdlib.h>
#include <gsl_rng.h>
gsl_rng *r;
int main(void)
{
gsl_rng_env_setup();
r = gsl_rng_alloc(gsl_rng_default);
printf("generator type = %s\n", gsl_rng_name(r));
printf("seed = %u\n", gsl_rng_default_seed);
printf("first value = %u\n", gsl_rng_get(r));
}
my makefile
ARCH = i386
TOPDIR := $(shell if [ "$$PWD" != "" ]; then echo $$PWD; else pwd; fi)
CROSS_COMPILE =
AS =$(CROSS_COMPILE)as
LD =$(CROSS_COMPILE)ld
CC =$(CROSS_COMPILE)gcc -I$(HPATH)
CPP =$(CC) -E
AR =$(CROSS_COMPILE)ar
NM =$(CROSS_COMPILE)nm
STRIP =$(CROSS_COMPILE)strip
MAKE =make
GSL_INC_DIR = /usr/local/include
GSL_LIB_DIR = /usr/local/lib
GSL_LIB=gsl
GSL_OPT = -I$(GSL_INC_DIR) -L$(GSL_LIB_DIR) -l$(GSL_LIB)
all : rngtest.out
rngtest.out : rngtest.c /usr/local/include/gsl_rng.h
$(CC) $(GSL_OPT) $< -o $*.out
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