cmake: look for libpmemobj also when building benchmarks

[lukaszstolarczuk]

rather than just for tests and examples.

ref. https://github.com/microsoft/vcpkg/blob/master/ports/libpmemobj-cpp/fixlibpmemobj-cpp.patch

---

This change is 

[codecov]

Codecov Report

Merging #904 into master will decrease coverage by 0.06%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #904      +/-   ##
==========================================
- Coverage   95.95%   95.89%   -0.07%     
==========================================
  Files          48       48              
  Lines        6083     6085       +2     
==========================================
- Hits         5837     5835       -2     
- Misses        246      250       +4     

Flag	Coverage Δ
#tests_clang_debug_cpp17	95.83% <ø> (-0.02%)	⬇️
#tests_gcc_debug	92.36% <ø> (+0.05%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...ude/libpmemobj++/container/concurrent_hash_map.hpp	93.46% <0.00%> (-0.41%)	⬇️
include/libpmemobj++/experimental/radix_tree.hpp	99.45% <0.00%> (+<0.01%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 40b23f2...ec453e4. Read the comment docs.

[szyrom]

Reviewed 1 of 1 files at r1.
Reviewable status: complete! all files reviewed, all discussions resolved

[igchor]

Reviewable status: all files reviewed, 1 unresolved discussion (waiting on @lukaszstolarczuk)

---

CMakeLists.txt, line 146 at r1 (raw file):

endif()

if(PKG_CONFIG_FOUND)

Hm, what about doc?

[igchor]

Reviewable status: all files reviewed, 2 unresolved discussions (waiting on @lukaszstolarczuk)

---

CMakeLists.txt, line 146 at r1 (raw file):

Previously, igchor (Igor Chorążewicz) wrote…

Hm, what about doc?

For now, we do not need to have libpmemobj if we only want to build documentation. I think I would prefer to have a similar if as in vcpkg (for examples, tests and benchmarks).

---

CMakeLists.txt, line 154 at r1 (raw file):

endif()

if(BUILD_TESTS OR BUILD_EXAMPLES)

should this also include benchmarks?

[lukaszstolarczuk]

Reviewable status: all files reviewed, 2 unresolved discussions (waiting on @igchor)

---

CMakeLists.txt, line 146 at r1 (raw file):

Previously, igchor (Igor Chorążewicz) wrote…

For now, we do not need to have libpmemobj if we only want to build documentation. I think I would prefer to have a similar if as in vcpkg (for examples, tests and benchmarks).

Done.

---

CMakeLists.txt, line 154 at r1 (raw file):

Previously, igchor (Igor Chorążewicz) wrote…

should this also include benchmarks?

Done. I've added all of them under the same if

[igchor]

Reviewable status: 0 of 1 files reviewed, all discussions resolved (waiting on @szyrom)