OK, trying to compile, using the Makefile.linux_openmp_64 as a base.

Have edited the file in a few ways:
commented this
# USE_LOCAL_X_TREE = 1

uncommented this:
USE_LESSTIF = 1

This has -V 34 in it and would not compile - there is no -V switch? Tried -v and then it didn't like the 34.

CCOLD = /usr/bin/gcc -O2 -m64 -fPIC -DREAD_WRITE_64 -DLINUX2 $(CEXTRA)


Current error:

/bin/rm -f afni
/usr/bin/gcc -O2 -m64 -fPIC -DREAD_WRITE_64 -DLINUX2 -Wcomment -Wformat -DUSE_TRACING -DHAVE_XDBE -DDONT_USE_XTDESTROY -DUSING_LESSTIF -o afni afni.o afni_func.o afni_widg.o afni_warp.o afni_fimmer.o afni_slice_short.o afni_slice_float.o afni_filer.o afni_slice_byte.o afni_slice_complex.o afni_pcor.o afni_pcor_float.o afni_transforms.o pbar.o afni_graph.o afni_plugin.o afni_cluster.o parser.o parser_int.o afni_plugout.o afni_fimfunc.o afni_setup.o afni_receive.o mcw_graf.o afni_splash.o afni_pplug_env.o afni_pplug_2dfunc.o afni_friends.o afni_ttren.o afni_pplug_1dfunc.o afni_driver.o afni_niml.o afni_sumafunc.o afni_slice_rgbyte.o afni_version.o afni_lock.o afni_vol2surf.o afni_pplug_instacorr.o afni_pplug_instacalc.o -rdynamic -L. -L/usr/lib64 -lmrix -lcoxplot -lmri -lvolpack libXmHTML.a libjpeg.a -lmri -lf2c /usr/lib64/libXm.a /usr/lib64/libXt.a -lXft -lXp -lXpm -lXext -lXmu -lSM -lICE -lX11 -lpng -ljpeg -lz /usr/lib64/libexpat.a -lm -ldl -lc -lm -lc
gcc: error: /usr/lib64/libXm.a: No such file or directory
gcc: error: /usr/lib64/libXt.a: No such file or directory
gcc: error: /usr/lib64/libexpat.a: No such file or directory
make: *** [afni] Error 1
[root@bigfoot afni_src]#


Those are installed! :::

[root@bigfoot afni_src]# ls -l /usr/lib64/libexpat.*
lrwxrwxrwx. 1 root root 17 Jun 19 06:32 /usr/lib64/libexpat.so -> libexpat.so.1.6.0
lrwxrwxrwx. 1 root root 17 May 22 15:39 /usr/lib64/libexpat.so.1 -> libexpat.so.1.6.0
-rwxr-xr-x. 1 root root 168336 Mar 26 05:14 /usr/lib64/libexpat.so.1.6.0
[root@bigfoot afni_src]# ls -l /usr/lib64/libXt.*
lrwxrwxrwx. 1 root root 14 Jun 17 05:01 /usr/lib64/libXt.so -> libXt.so.6.0.0
lrwxrwxrwx. 1 root root 14 May 22 15:40 /usr/lib64/libXt.so.6 -> libXt.so.6.0.0
-rwxr-xr-x. 1 root root 415704 Mar 15 16:35 /usr/lib64/libXt.so.6.0.0
[root@bigfoot afni_src]# ls -l /usr/lib64/libXm.*
lrwxrwxrwx. 1 root root 14 Jun 17 05:21 /usr/lib64/libXm.so -> libXm.so.2.0.1
lrwxrwxrwx. 1 root root 14 Jun 17 05:21 /usr/lib64/libXm.so.2 -> libXm.so.2.0.1
-rwxr-xr-x. 1 root root 1610304 Jan 14 00:32 /usr/lib64/libXm.so.2.0.1
[root@bigfoot afni_src]#