On centos with cmake 2.8.12.2:
CMake Error at cmake/AddEventLibrary.cmake:92 (export):
export called with target "event_extra_shared" which requires target
"event_core_shared" that is not in the export list.
If the required target is not easy to reference in this call, consider
using the APPEND option with multiple separate calls.
But on newer cmake I guess everything is ok.
Fixes: 7182c2f561570cd9ceb704623ebe9ae3608c7b43 ("cmake: build SHARED
and STATIC libraries (like autoconf does)")
(cherry picked from commit b1e8a4138f0da3c8a4bc303ff72b620b41c066d6)
This patchset adds next missing things (in compare to autotools):
- pkgconfig
- event_pthreads/event_openssl
- compile shared/static libraries always
And some fixes, because it will not build after fixing other things:
- export missing symbols for cmake (-fvisibility=hidden)
* cmake-missing-bits:
cmake: support visibility for AppleClang too
cmake: fix export absolute path and relative path and cleanup a bit
cmake: generate and install pkgconfig files
cmake: build SHARED and STATIC libraries (like autoconf does)
cmake: add missing event_openssl/event_pthreads libraries
Export symbols for -fvisibility=hidden (under cmake)
Refs: #246
(cherry picked from commit 489991a2b2628ba1ff4e6879b9f67ec35d224c38)
Fixes in cmake, to make it more like configure and support some
cross-compiling.
* cmake-configure-fixes-v2:
cmake: fix extracting of the version from git (check for number of matches)
Detect arch4random_addrandom() existence
Use off_t instead of ev_off_t for sendfile() (fixes android build)
cmake: detect _GNU_SOURCE not by __GNU_LIBRARY__ only (fallback to _GNU_SOURCE)
Check for WNOWAIT in waitpid() in runtime (not in cmake/configure)
cmake: add <pthread.h> into CMAKE_REQUIRED_INCLUDES for sizeof(pthread_t)
cmake: fix values for #cmakedefine
cmake: drop duplicates from event-config template
cmake: add value for the #cmakedefine macros (like autoconf)
cmake: Fix checking of enum values from sysctl.h
(cherry picked from commit 5aade2d30b6c5eff226cbf7b63fda5a01987ba4f)
P.S. in referenced commit I made a mistake and instead of *-rc* I wrote
*-beta*.
See-also: f4489b8323cda0bf8eed7c1353911a852d7a947c ("Bump version to
2.1.7-beta everywhere")
- do not use compiler check from the root cmake rules with syntax error,
let CodeCoverage check it
- fix CodeCoverage to check C compiler not CXX
- case insensitive checking of CMAKE_BUILD_TYPE
- replace flags with --coverage, and fix flags with linking with
--coverate, otherwise it will not compile during checking flags and
fails.
According to solaris docs:
"One instance of a SIGCHLD signal is queued for each child process whose
status has changed. If waitpid() returns because the status of a child
process is available, and WNOWAIT was not specified in options, any pending
SIGCHLD signal associated with the process ID of that child process is
discarded. Any other pending SIGCHLD signals remain pending."
And interesting thing that it works if you add sleep(1) before waitpid(), and
also if you run with --verbose (some race or what).
But linux doesn't support WNOWAIT in waitpid() so add detection into
cmake/autotools.
Fixes: #387
Link: https://bugzilla.redhat.com/show_bug.cgi?id=840782
- add_compiler_flags() must accept array IOW just ARGN will be enoough
- add_compiler_flags() called with variable name instead of it's value
P.S. and fix some alignments issues
P.P.S. more cmake issues expected since now CFLAGS actually works
P.P.P.S. some issues with cmake cache is possible, so just reset it
CMake configuration files are intended to be used by other projects to find the library. Specifically the CMake find_package command can use it to find all files related to the project.
The idea is to support 2 different CMake configuration files for Libevent. One if you simply build libevent that is generated for the build tree.
And a second one that is generated for an install target that will be installed on the system and point to where on the system the lib files and such can be find.
So for instance, in the build tree the config would set the cmake variable `LIBEVENT_INCLUDE_DIRS` to `/path/to/libevent/build/include`.
And for the system config it would be set to `/usr/local/include` (or whatever target the user chose when running cmake).
27bd9faf498b91923296cc91643e03ec4055c230 changed this behavior so that both configs would point to the system wide path `/usr/local/include`
This meant that projects just wanting to import directly for the build tree would fail.
CMAKE_MODULE_PATH is usually a list instead of single entry. Especially
for projects contain sub cmake projects. My patch replace the
CMAKE_MODULE_PATH with fixed path, to locate the `.in` file.
Use lcov/gcov to gather coverage info for the tests (Only works with gcc/clang and make).
cmake -DEVENT__COVERAGE=1 -DCMAKE_BUILD_TYPE=Debug ..
make
make verify_coverage
Current coverage (run on debian):
Line coverage 79.1 % 10231 / 12939
Function coverage 86.1 % 933 / 1083
