问题
My ultimate goal is to get python package graph_tool working on my system and also on ipynb if possible. I have already brew install graph-tool, as indicated here, but that's still insufficient.
So I follow Anaconda instructions here, and I make decent progress, until the CGAL Library could not be found.
Note: to comply with the Anaconda instructions, I installed anaconda3 and created a new conda environment (named py36env) to conda install all the required packages (packages that must also match with python 3.6)
The entire ./configure output. Below is a snippet:
(py36env) $ ./configure --prefix=/Users/tamtran/anaconda3/envs/py36env/ --with-python-module-path=/Users/tamtran/anaconda3/envs/py36env/lib/python3.6/site-packages --with-cgal=/Users/tamtran/anaconda3/envs/py36env/
.
.
checking whether CGAL is available in /Users/tamtran/anaconda3/envs/py36env/... no
configure: error: CGAL library not found.
The entire config.log. Below is a snippet:
configure:21200: checking whether CGAL is available in /Users/tamtran/anaconda3/envs/py36env/
configure:21236: g++ -std=gnu++14 -o conftest -fopenmp -O3 -fvisibility=default -fvisibility-inlines-hidden -Wno-deprecated -Wall -Wextra -ftemplate-backtrace-limit=0 -DNDEBUG -I/Users/tamtran/anaconda3/envs/py36env//include -pthread -I/usr/local/include -L/Users/tamtran/anaconda3/envs/py36env//lib -lCGAL -lCGAL_Core -lgmp -lboost_thread-mt -lpthread conftest.cpp -lgmp -lgmp >&5
| #include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
| #include <CGAL/convex_hull_2.h>
| typedef CGAL::Exact_predicates_inexact_constructions_kernel K;
| CGAL::convex_hull_2(points.begin(),points.end(),std::back_inserter(result));
configure:21278: error: CGAL library not found.
CGAL_CPPFLAGS='-I/Users/tamtran/anaconda3/envs/py36env//include'
CGAL_FLAGS=''
CGAL_LDFLAGS='-L/Users/tamtran/anaconda3/envs/py36env//lib -lCGAL -lCGAL_Core -lgmp -lboost_thread-mt -lpthread'
Note: Even without the --with-cgal tag, the same issue occurs. It's also important (I think) that the CGAL search directory is within py36env because CGAL matching with python3.6 is in there, whereas CGAL-python3.5 is in conda root environment. The only differences of ./configure output without the CGAL directory are:
checking whether CGAL is available in /usr... no
checking whether CGAL is available in /usr/local... no
checking whether CGAL is available in /opt... no
checking whether CGAL is available in /opt/local... no
回答1:
on mac os x You must use -lcgal (is using brew)
for example on fedora linux -lCGAL
来源：https://stackoverflow.com/questions/46922619/configure-error-cgal-library-not-found