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getdns
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Do platform versioning from single version source. 

Now I understand what dark stuff libtool gets up to, just do the same at the platform level.
This commit is contained in:
Jim Hague 2019-10-21 13:51:19 +01:00
parent 41741f6cc4
commit 9682b4d41c
1 changed files with 17 additions and 6 deletions
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23
CMakeLists.txt
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@ -32,9 +32,10 @@ set(API_VERSION "December 2015")
set(API_NUMERIC_VERSION 0x07df0c00)
set(GETDNS_COMPILATION_COMMENT "${PACKAGE_NAME} ${GETDNS_VERSION} configured on <date> for the ${API_VERSION} of the API")
set(GETDNS_LIBVERSION "11:2:1")
set(GETDNS_SHAREDLIBVERSION "10.1.2")
set(GETDNS_DLLVERSION "10.1") # Windows permits major.minor only.
# Version 11:2:1 in libtool-speak.
set(GETDNS_VERSION_CURRENT 11)
set(GETDNS_VERSION_REVISION 2)
set(GETDNS_VERSION_AGE 1)
include(CheckCSourceRuns)
include(CheckFunctionExists)
@ -483,16 +484,14 @@ target_link_libraries(getdns_shared
Threads::Threads
${getdns_system_libs}
)
set_target_properties(getdns_shared PROPERTIES VERSION ${GETDNS_SHAREDLIBVERSION})
set_target_properties(getdns_shared PROPERTIES OUTPUT_NAME getdns)
# Generate platform-specific link file with the export symbols.
# link file specifying the exports.
file(STRINGS src/libgetdns.symbols symbols)
set(getdns_EXTRA_LINK "")
set(getdns_EXTRA_LINK_FLAGS "")
if (WIN32)
file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/getdns.def" "LIBRARY GETDNS\n VERSION ${GETDNS_DLLVERSION}\n EXPORTS\n")
file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/getdns.def" "LIBRARY GETDNS\n VERSION ${GETDNS_VERSION_CURRENT}.${GETDNS_VERSION_REVISION}\n EXPORTS\n")
foreach (symbol IN LISTS symbols)
file(APPEND "${CMAKE_CURRENT_BINARY_DIR}/getdns.def" " ${symbol}\n")
endforeach ()
@ -504,6 +503,14 @@ elseif (APPLE)
endforeach ()
target_sources(getdns_shared PRIVATE "${CMAKE_CURRENT_BINARY_DIR}/getdns.syms")
target_link_libraries(getdns_shared PRIVATE "-exported_symbols_list getdns.syms")
# Follow libtool. Add one to major version, as version 0 doesn't work.
# But tag dynlib name with current-age.
math(EXPR major_version "${GETDNS_VERSION_CURRENT}+1")
math(EXPR dynlib_version "${GETDNS_VERSION_CURRENT}-${GETDNS_VERSION_AGE}")
set_target_properties(getdns_shared PROPERTIES VERSION "${dynlib_version}")
target_link_libraries(getdns_shared PRIVATE "-compatibility_version ${major_version}")
target_link_libraries(getdns_shared PRIVATE "-current_version ${major_version}.${GETDNS_VERSION_REVISION}")
else ()
# Assume GNU ld.
file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/getdns.ver" "{ global:\n")
@ -512,6 +519,10 @@ else ()
endforeach ()
file(APPEND "${CMAKE_CURRENT_BINARY_DIR}/getdns.ver" "local:\n *;\n};\n")
target_link_libraries(getdns_shared PRIVATE "-Wl,--version-script=getdns.ver")
# Again, follow libtool. Major version is current-age.
math(EXPR compat_version "${GETDNS_VERSION_CURRENT}-${GETDNS_VERSION_AGE}")
set_target_properties(getdns_shared PROPERTIES VERSION "${compat_version}.${GETDNS_VERSION_AGE}.${GETDNS_VERSION_REVISION}")
endif ()