diff options
Diffstat (limited to 'CMakeLists.txt')
| -rw-r--r-- | CMakeLists.txt | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt index ee50ce0d..60b1726c 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -33,6 +33,7 @@ include (CheckSymbolExists) include (CheckStructHasMember) include (CheckLibraryExists) include (CheckCSourceCompiles) +include (CheckCCompilerFlag) include (CMakeDependentOption) include (GNUInstallDirs) include (TestBigEndian) @@ -55,6 +56,7 @@ set (NNG_DESCRIPTION "High-Performance Scalability Protocols NextGen") set (ISSUE_REPORT_MSG "Please consider opening an issue at https://github.com/nanomsg/nng") # Determine library versions. +set (NNG_ABI_SOVERSION 1) set (NNG_ABI_VERSION "1.0.0") # Determine package version. @@ -86,6 +88,8 @@ endif() # User-defined options. +option(BUILD_SHARED_LIBS "Build shared library" ${BUILD_SHARED_LIBS}) + option (NNG_TESTS "Build and run tests" ON) option (NNG_TOOLS "Build extra tools" ON) option (NNG_ENABLE_NNGCAT "Enable building nngcat utility." ${NNG_TOOLS}) @@ -267,6 +271,14 @@ else() add_definitions (-DNNG_LITTLE_ENDIAN) endif() +# If the compiler is not on Windows, does it support hiding the +# symbols by default? For shared libraries we would like to do this. +if (NOT WIN32 AND NOT CYGWIN) + check_c_compiler_flag(-fvisibility=hidden NNG_HIDDEN_VISIBILITY) + if (NNG_HIDDEN_VISIBILITY) + add_definitions (-DNNG_HIDDEN_VISIBILITY) + endif() +endif() find_package (Threads REQUIRED) @@ -408,6 +420,16 @@ nng_check_sym (strnlen string.h NNG_HAVE_STRNLEN) nng_check_sym (strcasecmp string.h NNG_HAVE_STRCASECMP) nng_check_sym (strncasecmp string.h NNG_HAVE_STRNCASECMP) +# Set a static symbol. We do this for testing, so that tests can +# be skipped if they would rely on symbols that might not be exported. +# For example, idhash depends on private symbols, so don't test it +# when using a shared library on Windows because the symbols won't +# resolve. +if (NOT(BUILD_SHARED_LIBS)) + set (NNG_STATIC_LIB ON) + message(STATUS "Building static libs") +endif() + add_subdirectory (src) if (NNG_TESTS) |