I am trying to install ginac on mac os 10.13.2. The Cln1.3.4 is installed without error. I have tried to installed both way: 1. ./configure works with showing === The following minor problems have been detected by configure. === Please check the messages below before running "make". === (see the section 'Common Problems' in the INSTALL file) == ginsh will not compile, because readline headers could not be found. == Documentation may not build, because fig2dev/texinfo is missing. == Reference manual will not build, because doxygen is missing. Configuration of GiNaC 1.7.2 done. Now type "make". These above warning I am ignoring. Next, while doing make I am getting the following error: Making all in ginac /Applications/Xcode.app/Contents/Developer/usr/bin/make all-am /bin/sh ../libtool --tag=CXX --mode=compile g++ -std=gnu++11 -DHAVE_CONFIG_H -I. -I../config -DLIBEXECDIR='"/usr/local/libexec/"' /Users/gkdgoutam/Softwares/HEP_Softwares/Install/Cln134/include/cln: -g -O2 -MT libginac_la-add.lo -MD -MP -MF .deps/libginac_la-add.Tpo -c -o libginac_la-add.lo `test -f 'add.cpp' || echo './'`add.cpp libtool: compile: g++ -std=gnu++11 -DHAVE_CONFIG_H -I. -I../config -DLIBEXECDIR=\"/usr/local/libexec/\" /Users/gkdgoutam/Softwares/HEP_Softwares/Install/Cln134/include/cln: -g -O2 -MT libginac_la-add.lo -MD -MP -MF .deps/libginac_la-add.Tpo -c add.cpp -fno-common -DPIC -o .libs/libginac_la-add.o clang: *error: *no such file or directory: '/Users/gkdgoutam/Softwares/HEP_Softwares/Install/Cln134/include/cln:' make[2]: *** [libginac_la-add.lo] Error 1 make[1]: *** [all] Error 2 make: *** [all-recursive] Error 1 2. I tried to compile with cmake, however there I am getting the following problem: cmake ../ginac-1.7.2 -- Checking for module 'cln' -- No package 'cln' found -- found CLN [/Users/gkdgoutam/Softwares/HEP_Softwares/Install/Cln134/include/cln/version.h], version 1.3.4 CMake Error at /Applications/CMake.app/Contents/share/cmake-3.8/Modules/FindPackageHandleStandardArgs.cmake:137 (message): Could NOT find CLN (missing: CLN_LIBRARIES) (found suitable version "1.3.4", minimum required is "1.2.2") Call Stack (most recent call first): /Applications/CMake.app/Contents/share/cmake-3.8/Modules/FindPackageHandleStandardArgs.cmake:377 (_FPHSA_FAILURE_MESSAGE) cmake/modules/FindCLN.cmake:116 (FIND_PACKAGE_HANDLE_STANDARD_ARGS) CMakeLists.txt:30 (find_package) -- Configuring incomplete, errors occurred! See also "/Users/gkdgoutam/Softwares/HEP_Softwares/Source/ginac_build/CMakeFiles/CMakeOutput.log". In both cases, the problem seems to come from cln, but could not able to fix. Is it possible to get some help? I am using : gcc --version Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr --with-gxx-include-dir=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.13.sdk/usr/include/c++/4.2.1 Apple LLVM version 9.0.0 (clang-900.0.39.2) Target: x86_64-apple-darwin17.3.0 Thread model: posix InstalledDir: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin