"cmake .." encounter error

[luckypoem]

git clone https://github.com/trojan-gfw/trojan
cd trojan/
git checkout stable
mkdir build
cd build/
cmake ..

after running "cmake .." ,i encounter error as follows:
...
CMake Error at /usr/local/share/cmake-3.10/Modules/FindPackageHandleStandardArgs.cmake:137 (message):
Could NOT find OpenSSL, try to set the path to OpenSSL root folder in the
system variable OPENSSL_ROOT_DIR: Found unsuitable version "1.0.1t", but
required is at least "1.0.2" (found /usr/lib/x86_64-linux-gnu/libcrypto.so)
Call Stack (most recent call first):
/usr/local/share/cmake-3.10/Modules/FindPackageHandleStandardArgs.cmake:376 (_FPHSA_FAILURE_MESSAGE)
/usr/local/share/cmake-3.10/Modules/FindOpenSSL.cmake:379 (find_package_handle_standard_args)
CMakeLists.txt:12 (find_package)
-- Configuring incomplete, errors occurred!
See also "/root/trojan/build/CMakeFiles/CMakeOutput.log".
See also "/root/trojan/build/CMakeFiles/CMakeError.log".
root@yms:~/trojan/build#

i already uprade openssl to version1.0.2:
root@yms:# which openssl
/usr/local/ssl/bin/openssl
root@yms:# openssl version
OpenSSL 1.0.2n 7 Dec 2017

how to fix it?
thank you

[antonchen]

You need to specify the OpenSSL include directory

// Path to a file.
OPENSSL_INCLUDE_DIR:PATH=OPENSSL_INCLUDE_DIR-NOTFOUND

[luckypoem]

@antonchen
不太明白。怎么指定OpenSSL include 目录？在哪里指定？
能把具体命令写出来吗

[GreaterFire]

cmake .. -DOPENSSL_ROOT_DIR=/usr/local/ssl/

Make sure to clean up the build directory before you rerun cmake.

[luckypoem]

@GreaterFire
this time "cmake .." encounter no error,but then "make" encounter error:
root@yms:/trojan/build# ls
CMakeCache.txt cmake_install.cmake Makefile trojan.service
CMakeFiles CTestTestfile.cmake trojan.json
root@yms:/trojan/build# make
...
collect2: error: ld returned 1 exit status
CMakeFiles/trojan.dir/build.make:335: recipe for target 'trojan' failed
make[2]: *** [trojan] Error 1
CMakeFiles/Makefile2:67: recipe for target 'CMakeFiles/trojan.dir/all' failed
make[1]: *** [CMakeFiles/trojan.dir/all] Error 2
Makefile:140: recipe for target 'all' failed
make: *** [all] Error 2
root@yms:~/trojan/build#

how to fix it?
tks

[GreaterFire]

Please provide full compilation log.

P.S. Try to delete all the files in the build directory by rm -rf * and then cmake & make again.

[luckypoem]

@GreaterFire
"delete all the files in the build directory by rm -rf * and then cmake & make again", the same result.
very strange.
i update openssl as per this article- https://sb.sb/centos-upgrade-openssl/ ,
isn't the method of updating openssl correct?

[luckypoem]

@GreaterFire

and can u pls also provide binary file on linux vps of https://github.com/trojan-gfw/trojan/releases/tag/v0.6.0?

[luckypoem]

@GreaterFire
我换了一台vps,它里面的openssl的版本已经是1.0.2,这样就能顺利make了