Re: [Help-glpk] Build Error

[Rob]

Thanks for the help. I finally figured it out after watching the output of the Makefile. The proper command to compile is:

gcc  -I. -I../include -c  glpsol.c
gcc  -g -O2  -o glpsol  glpsol.o ../src/libglpk.a -lm

The original output from the makefile was:
gcc -DPACKAGE=\"GLPK\" -DVERSION=\"4.9\" -DHAVE_LIBM=1 -DSTDC_HEADERS=1  -I. -I.  -I../include   -g -O2 -c glpsol.c
gcc  -g -O2  -o glpsol  glpsol.o
 ../src/libglpk.a -lm

I'm not sure why you have to do it this way exactly. Using the line of code you gave me produces the output that follows. Any idea why?

address@hidden gcc -I../include glpsol.c
 ../src/libglpk.a
../src/libglpk.a(glplpx4.o): In function `gm_scal':/home/rcgreen/Development/GLPK/Source/src/glplpx4.c:307: undefined reference to `sqrt'
:/home/rcgreen/Development/GLPK/Source/src/glplpx4.c:282: undefined reference to `sqrt'
../src/libglpk.a(glpipm.o): In function `basic_info':/home/rcgreen/Development/GLPK/Source/src/glpipm.c:648: undefined reference to `sqrt'
../src/libglpk.a(glpipm.o): In function `glp_ipm_main':/home/rcgreen/Development/GLPK/Source/src/glpipm.c:639: undefined reference to `sqrt'
:/home/rcgreen/Development/GLPK/Source/src/glpipm.c:634: undefined reference to `sqrt'
../src/libglpk.a(glpipm.o):/home/rcgreen/Development/GLPK/Source/src/glpipm.c:653: more undefined references to `sqrt' follow
../src/libglpk.a(glpmpl3.o): In function `glp_mpl_fp_mod':/home/rcgreen/Development/GLPK/Source/src/glpmpl3.c:137: undefined reference to `fmod'
../src/libglpk.a(glpmpl3.o): In function `glp_mpl_fp_exp':/home/rcgreen/Development/GLPK/Source/src/glpmpl3.c:179: undefined reference to `log'
../src/libglpk.a(glpmpl3.o): In function `glp_mpl_fp_normal01':/home/rcgreen/Development/GLPK/Source/src/glpmpl3.c:381: undefined reference to `log'
:/home/rcgreen/Development/GLPK/Source/src/glpmpl3.c:381: undefined reference to `sqrt'
../src/libglpk.a(glpmpl3.o): In function `glp_mpl_fp_power':/home/rcgreen/Development/GLPK/Source/src/glpmpl3.c:169: undefined reference to `pow'
:/home/rcgreen/Development/GLPK/Source/src/glpmpl3.c:157: undefined reference to `log'
:/home/rcgreen/Development/GLPK/Source/src/glpmpl3.c:157: undefined reference to `log'
:/home/rcgreen/Development/GLPK/Source/src/glpmpl3.c:163: undefined reference to `log'
:/home/rcgreen/Development/GLPK/Source/src/glpmpl3.c:163: undefined reference to `log'
:/home/rcgreen/Development/GLPK/Source/src/glpmpl3.c:163: undefined reference to `log'
../src/libglpk.a(glpmpl3.o):/home/rcgreen/Development/GLPK/Source/src/glpmpl3.c:163: more undefined references to `log' follow
../src/libglpk.a(glpmpl3.o): In function `glp_mpl_fp_round':/home/rcgreen/Development/GLPK/Source/src/glpmpl3.c:275: undefined reference to `pow'
../src/libglpk.a(glpmpl3.o): In function `glp_mpl_fp_trunc':/home/rcgreen/Development/GLPK/Source/src/glpmpl3.c:302: undefined reference to `pow'
../src/libglpk.a(glpmpl3.o): In function `glp_mpl_fp_exp':/home/rcgreen/Development/GLPK/Source/src/glpmpl3.c:181: undefined reference to `exp'
../src/libglpk.a(glpmpl3.o): In function `glp_mpl_fp_log':/home/rcgreen/Development/GLPK/Source/src/glpmpl3.c:192: undefined reference to `log'
:/home/rcgreen/Development/GLPK/Source/src/glpmpl3.c:192: undefined reference to `log'
../src/libglpk.a(glpmpl3.o): In function `glp_mpl_fp_log10':/home/rcgreen/Development/GLPK/Source/src/glpmpl3.c:203: undefined reference to `log10'
:/home/rcgreen/Development/GLPK/Source/src/glpmpl3.c:203: undefined reference to `log10'
../src/libglpk.a(glpmpl3.o): In function `glp_mpl_fp_sqrt':/home/rcgreen/Development/GLPK/Source/src/glpmpl3.c:214: undefined reference to `sqrt'
../src/libglpk.a(glpmpl3.o): In function `glp_mpl_fp_sin':/home/rcgreen/Development/GLPK/Source/src/glpmpl3.c:225: undefined reference to `sin'
../src/libglpk.a(glpmpl3.o): In function `glp_mpl_fp_cos':/home/rcgreen/Development/GLPK/Source/src/glpmpl3.c:236: undefined reference to `cos'
../src/libglpk.a(glpmpl3.o): In function `glp_mpl_fp_atan':/home/rcgreen/Development/GLPK/Source/src/glpmpl3.c:246: undefined reference to `atan'
../src/libglpk.a(glpmpl3.o): In function `glp_mpl_fp_atan2':/home/rcgreen/Development/GLPK/Source/src/glpmpl3.c:256: undefined reference to `atan2'
collect2: ld returned 1 exit status

On 11/8/06, Andrew Makhorin <address@hidden> wrote:

> I installed glpk using apt-get in Ubuntu. I then downloaded the source.
> I'm currently trying to build glpsol.c to ensure that everything is set
> up properly in my environment, but I am getting the following output
> when I run gcc glpsol.c -lgpk
>
> address@hidden gcc glpsol.c -lglpk
>
> glpsol.c:337: error: syntax error before '}' token
>
> glpsol.c: In function 'parse_cmdline':
>
> glpsol.c:620: error: 'LPX_C_COVER' undeclared (first use in this function)
>
> glpsol.c:620: error: (Each undeclared identifier is reported only once
>
> glpsol.c:620: error: for each function it appears in.)
>
> glpsol.c:622: error: 'LPX_C_CLIQUE' undeclared (first use in this function)
>
> glpsol.c:624: error: 'LPX_C_GOMORY' undeclared (first use in this function)
>
> glpsol.c:626: error: 'LPX_C_ALL' undeclared (first use in this function)
>
> glpsol.c: In function 'main':
>
> glpsol.c:848: error: 'LPX_K_BINARIZE' undeclared (first use in this
> function)
>
> glpsol.c:849: error: 'LPX_K_USECUTS' undeclared (first use in this function)
>
> Any Suggestions?

Hmm... Try to configure and compile glpk from scratch; there must be
no errors. Run `make check' to perform a simple check.
Then not installing the package enter subdirectory `examples' and try
to compile glpsol:

   gcc -I../include glpsol.c ../src/libglpk.a

The compilation must be successful. Then install the package in a usual
way. I hope all will work properly.

-- 
Robert C. Green
Master's Candidate in Computer Science and Operations Research
address@hidden
(412) 860-4825