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Revert changes that migrate to thread_local.

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iOS 8 does not support `thread_local`, which is still in use.
Another approach will have to be found.

This change is a revert of the following changes:

a3845240 - "Simplify PoolAlloc with use of thread_local."
abf92c80 - "Deprecate InitializeDll functions"
33585c87 - "Limit visibility of symbols for internal libraries"

Issue: #2346
This commit is contained in:
Ben Clayton 2020-07-31 07:09:17 +01:00
parent 7ab4564696
commit 2a44064885
8 changed files with 161 additions and 35 deletions
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16
CMakeLists.txt
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@ -279,23 +279,17 @@ function(glslang_add_build_info_dependency target)
add_dependencies(${target} glslang-build-info)
endfunction()
# glslang_default_to_hidden_visibility() makes the symbol visibility hidden by
# default for <target>.
function(glslang_default_to_hidden_visibility target)
if(NOT WIN32)
target_compile_options(${target} PRIVATE "-fvisibility=hidden")
endif()
endfunction()
# glslang_only_export_explicit_symbols() makes the symbol visibility hidden by
# default for <target>, and sets the GLSLANG_IS_SHARED_LIBRARY define, and
# GLSLANG_EXPORTING to 1 when specifically building <target>.
# default for <target> when building shared libraries, and sets the
# GLSLANG_IS_SHARED_LIBRARY define, and GLSLANG_EXPORTING to 1 when specifically
# building <target>.
function(glslang_only_export_explicit_symbols target)
glslang_default_to_hidden_visibility(${target})
if(BUILD_SHARED_LIBS)
target_compile_definitions(${target} PUBLIC "GLSLANG_IS_SHARED_LIBRARY=1")
if(WIN32)
target_compile_definitions(${target} PRIVATE "GLSLANG_EXPORTING=1")
else()
target_compile_options(${target} PRIVATE "-fvisibility=hidden")
endif()
endif()
endfunction()