Build with autotools fails on Ubuntu 16.04

[fidergo-stephane-gourichon]

Compilation fails on Ubuntu 16.04 with latest master.

Followed instructions from README.md, including sudo apt-get install autoconf automake libtool libgoogle-glog-dev libgflags-dev libeigen3-dev.

Compilation command line includes -lgtest -lgtest_main but no libgtest.so exists, and no package libgtest.

Error message:

make  all-recursive
make[1]: Entering directory '/somepath'
Making all in src
make[2]: Entering directory '/somepath/src'
make[2]: Nothing to be done for 'all'.
make[2]: Leaving directory '/somepath/src'
Making all in tests
make[2]: Entering directory '/somepath/tests'
/bin/bash ../libtool  --tag=CXX   --mode=link clang++ -Wall -Wextra -g -O3  -g -O2 -std=gnu++11 -L../src  -lgtest -lgtest_main  -o simple_test simple-test.o -lcmaes -lm -lglog -lgflags
libtool: link: clang++ -Wall -Wextra -g -O3 -g -O2 -std=gnu++11 -o .libs/simple_test simple-test.o  -L../src -lgtest -lgtest_main /somepath/src/.libs/libcmaes.so -lm -lglog -lgflags
/usr/bin/ld: cannot find -lgtest
/usr/bin/ld: cannot find -lgtest_main
clang: error: linker command failed with exit code 1 (use -v to see invocation)
Makefile:812: recipe for target 'simple_test' failed
make[2]: *** [simple_test] Error 1
/bin/bash ../libtool  --tag=CXX   --mode=link clang++ -Wall -Wextra -g -O3  -g -O2 -std=gnu++11 -L../src  -lgtest -lgtest_main  -o edm edm.o -lcmaes -lm -lglog -lgflags
libtool: link: clang++ -Wall -Wextra -g -O3 -g -O2 -std=gnu++11 -o .libs/edm edm.o  -L../src -lgtest -lgtest_main /somepath/src/.libs/libcmaes.so -lm -lglog -lgflags
/usr/bin/ld: cannot find -lgtest
/usr/bin/ld: cannot find -lgtest_main
clang: error: linker command failed with exit code 1 (use -v to see invocation)
Makefile:808: recipe for target 'edm' failed
make[2]: *** [edm] Error 1
/bin/bash ../libtool  --tag=CXX   --mode=link clang++ -Wall -Wextra -g -O3  -g -O2 -std=gnu++11 -L../src  -lgtest -lgtest_main  -o test_functions test-functions.o -lcmaes -lm -lglog -lgflags
libtool: link: clang++ -Wall -Wextra -g -O3 -g -O2 -std=gnu++11 -o .libs/test_functions test-functions.o  -L../src -lgtest -lgtest_main /somepath/src/.libs/libcmaes.so -lm -lglog -lgflags
/usr/bin/ld: cannot find -lgtest
/usr/bin/ld: cannot find -lgtest_main
clang: error: linker command failed with exit code 1 (use -v to see invocation)
Makefile:820: recipe for target 'test_functions' failed
make[2]: *** [test_functions] Error 1
/bin/bash ../libtool  --tag=CXX   --mode=link clang++ -Wall -Wextra -g -O3  -g -O2 -std=gnu++11 -L../src  -lgtest -lgtest_main  -o tpa_tests tpa-tests.o -lcmaes -lm -lglog -lgflags
libtool: link: clang++ -Wall -Wextra -g -O3 -g -O2 -std=gnu++11 -o .libs/tpa_tests tpa-tests.o  -L../src -lgtest -lgtest_main /somepath/src/.libs/libcmaes.so -lm -lglog -lgflags
/usr/bin/ld: cannot find -lgtest
/usr/bin/ld: cannot find -lgtest_main
clang: error: linker command failed with exit code 1 (use -v to see invocation)
Makefile:824: recipe for target 'tpa_tests' failed
make[2]: *** [tpa_tests] Error 1
/bin/bash ../libtool  --tag=CXX   --mode=link clang++ -Wall -Wextra -g -O3  -g -O2 -std=gnu++11 -L../src  -lgtest -lgtest_main  -o surr_tests surr-tests.o -lcmaes -lm -lglog -lgflags
libtool: link: clang++ -Wall -Wextra -g -O3 -g -O2 -std=gnu++11 -o .libs/surr_tests surr-tests.o  -L../src -lgtest -lgtest_main /somepath/src/.libs/libcmaes.so -lm -lglog -lgflags
/usr/bin/ld: cannot find -lgtest
/usr/bin/ld: cannot find -lgtest_main
clang: error: linker command failed with exit code 1 (use -v to see invocation)
Makefile:816: recipe for target 'surr_tests' failed
make[2]: *** [surr_tests] Error 1
make[2]: Target 'all' not remade because of errors.
make[2]: Leaving directory '/somepath/tests'
Making all in examples
make[2]: Entering directory '/somepath/examples'
make[2]: Nothing to be done for 'all'.
make[2]: Leaving directory '/somepath/examples'
make[2]: Entering directory '/somepath'
make[2]: Leaving directory '/somepath'
Makefile:499: recipe for target 'all-recursive' failed
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory '/somepath'
Makefile:387: recipe for target 'all' failed
make: *** [all] Error 2

Commit is

commit 7514782ebe7167c6a889173364c980874ac17b41
Author: Emmanuel Benazera <[email protected]>
Date:   2018-06-25 17:35:51 +0200

    removed default mavx mfma optimisation

Kernel is 4.4.0-139-generic #165-Ubuntu SMP Wed Oct 24 10:58:50 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

[fidergo-stephane-gourichon]

Complete steps to reproduce:

git clone https://github.com/beniz
cd libcmaes
./autogen.sh
echo "#define CMAES_EXPORT" > cmaes_export.h
./configure
make -k # first time shows error messages and a number of warnings
make -k # second times to only see short list of error messages 

Optionally, add e.g. -j 8 to first make invocation, for quicker build.
Same result.

[beniz]

Hi, see https://www.eriksmistad.no/getting-started-with-google-test-on-ubuntu/ on installing gtest on Ubuntu. You need to compile and copy the gtest libfiles yourself.

[fidergo-stephane-gourichon]

Hi, see https://www.eriksmistad.no/getting-started-with-google-test-on-ubuntu/ on installing gtest on Ubuntu. You need to compile and copy the gtest libfiles yourself.

No offense, I did not claim that gtest is magical or had any ludicrous expectation.

Those mentions in README.md:

• gtest for unit testing (optional);
• sudo apt-get install autoconf automake libtool libgoogle-glog-dev libgflags-dev libeigen3-dev
• "Build" instructions
• "Run examples" instructions

... create the expectation that either gflags/gtest is not needed to run the examples, or the project make the whole process transparent.

I know how to make the process transparent in a CMake setup and can even offer a PR.

Anyway, I only tested the autotools build because the CMake build did not try to build example, see #197.

Perhaps the best thing to do is to fix the README.