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CMake: Handle symbol versioning on MicroBlaze specially. 

This is to match configure.ac.

(cherry picked from commit 025eb6d787)
(cherry picked from commit bcac3e3aa2)
This commit is contained in:
Lasse Collin 2024-02-18 14:59:52 +02:00
parent 93b928b230
commit a9b2d85120
1 changed files with 19 additions and 4 deletions
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23
CMakeLists.txt
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@ -471,8 +471,22 @@ if(WIN32)
# Disable __declspec(dllimport) when linking against static liblzma.
target_compile_definitions(liblzma INTERFACE LZMA_API_STATIC)
endif()
elseif(BUILD_SHARED_LIBS AND CMAKE_SYSTEM_NAME STREQUAL "Linux")
elseif(BUILD_SHARED_LIBS AND CMAKE_SYSTEM_NAME STREQUAL "Linux" AND
NOT CMAKE_SYSTEM_PROCESSOR MATCHES "[Mm]icro[Bb]laze")
# GNU/Linux-specific symbol versioning for shared liblzma.
# This includes a few extra compatibility symbols for RHEL/CentOS 7
# which are pointless on non-glibc non-Linux systems.
#
# As a special case, GNU/Linux on MicroBlaze gets the generic
# symbol versioning because GCC 12 doesn't support the __symver__
# attribute on MicroBlaze. On Linux, CMAKE_SYSTEM_PROCESSOR comes
# from "uname -m" for native builds (should be "microblaze") or from
# the CMake toolchain file (not perfectly standardized but it very
# likely has "microblaze" in lower case or mixed case somewhere in
# the string).
#
# FIXME? Avoid symvers on Linux with non-glibc like musl?
#
# Note that adding link options doesn't affect static builds
# but HAVE_SYMBOL_VERSIONS_LINUX must not be used with static builds
# because it would put symbol versions into the static library which
@ -488,9 +502,10 @@ elseif(BUILD_SHARED_LIBS AND CMAKE_SYSTEM_NAME STREQUAL "Linux")
set_target_properties(liblzma PROPERTIES
LINK_DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/src/liblzma/liblzma_linux.map"
)
elseif(BUILD_SHARED_LIBS AND CMAKE_SYSTEM_NAME STREQUAL "FreeBSD")
# Symbol versioning for shared liblzma for non-GNU/Linux.
# FIXME? What about Solaris?
elseif(BUILD_SHARED_LIBS AND (CMAKE_SYSTEM_NAME STREQUAL "FreeBSD" OR
CMAKE_SYSTEM_NAME STREQUAL "Linux"))
# Generic symbol versioning for shared liblzma is used on FreeBSD and
# also on GNU/Linux on MicroBlaze.
target_link_options(liblzma PRIVATE
"-Wl,--version-script=${CMAKE_CURRENT_SOURCE_DIR}/src/liblzma/liblzma_generic.map"
)