[gmx-users] compile single src file

[Eric Smoll]

Hello,

I have a working gromacs install (in "/home/gromacs/4.5.3") but I am
interested in editing the source and want to start by toying with
individual c files in "src/mdlib." I added a main function to "qm_orca.c"
and tried to compile as follows:

gcc qm_orca.c -o qm_orca -lm
-I'/home/gromacs/4.5.3/include/gromacs'
-L'/home/gromacs/4.5.3/lib'

I get a series of errors "undefined reference to `save_calloc'", "undefined
reference to `gmx_fatal'", etc. I am confused because these should all be
in smalloc.h which is covered by the -I flag. What am I missing?

Thank you!