Build help: unresolved symbols on Linux

Help
1

Need some help building on Linux.
OS: Fedora 31 64bit

autogen.sh
make
...
  CCLD     dot
/usr/bin/ld: /home/greg/src/graphviz/lib/cgraph/.libs/libcgraph.so: undefined reference to `aglexeof'
/usr/bin/ld: /home/greg/src/graphviz/lib/cgraph/.libs/libcgraph.so: undefined reference to `aaglex'
/usr/bin/ld: /home/greg/src/graphviz/lib/cgraph/.libs/libcgraph.so: undefined reference to `aagin'
/usr/bin/ld: /home/greg/src/graphviz/lib/cgraph/.libs/libcgraph.so: undefined reference to `aglexinit'
/usr/bin/ld: /home/greg/src/graphviz/lib/cgraph/.libs/libcgraph.so: undefined reference to `aglexbad'
/usr/bin/ld: /home/greg/src/graphviz/lib/cgraph/.libs/libcgraph.so: undefined reference to `aagerror'
/usr/bin/ld: ../../lib/gvc/.libs/libgvc.so: undefined reference to `agsetfile'

From what I could see “agraph” where those symbols are defined is not mentioned in configure.ac - there is no attempt to build agraph as a dependency.
Any ideas what I am missing?

Thanks,
Gregory.

2

Found it. “scan.c” in cgraph was empty and is not cleaned by “make clean” by default.

3

If you’re going to run autogen.sh again then you need to use “make distclean”

scan.c is a generated file, as is configure, shipped in the graphviz.*.tar.gz portable sources so that it’s possible to run the traditional “./configure;make;make install”
without tools such as yacc and lex.

.