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Build: Let the users override the symbol versioning variant.
There are cases when the users want to decide themselves whether they want to have the generic (even on GNU/Linux) or the linux (even if we do not recommend that) symbol versioning variant. The former might be needed to circumvent compiler issues (i.e. the compiler does not support all features that are required for the linux versioning), the latter might help in overriding the assumptions made in the configure script.
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1 changed files with 50 additions and 41 deletions
21
configure.ac
21
configure.ac
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@ -716,6 +716,7 @@ elif test "x$enable_shared" = xno ; then
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enable_symbol_versions=no
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AC_MSG_RESULT([no (not building a shared library)])
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else
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if test "x$enable_symbol_versions" = xyes ; then
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case "$host_cpu-$host_os" in
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microblaze*)
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# GCC 12 on MicroBlaze doesn't support __symver__
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@ -726,6 +727,15 @@ else
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enable_symbol_versions=generic
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;;
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*-linux*)
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enable_symbol_versions=linux
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;;
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*)
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enable_symbol_versions=generic
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;;
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esac
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fi
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if test "x$enable_symbol_versions" = xlinux ; then
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case "$pic_mode-$enable_static" in
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default-*)
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# Use symvers if PIC is defined.
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@ -746,7 +756,6 @@ else
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possibly picking only src/liblzma/.libs/liblzma.a from the static build.])
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;;
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esac
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enable_symbol_versions=linux
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AC_DEFINE_UNQUOTED([HAVE_SYMBOL_VERSIONS_LINUX],
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[$have_symbol_versions_linux],
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[Define to 1 to if GNU/Linux-specific details
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@ -757,11 +766,11 @@ else
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time with Libtool if neither --with-pic nor
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--without-pic is used). This define must be
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used together with liblzma_linux.map.])
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;;
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*)
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enable_symbol_versions=generic
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;;
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esac
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elif test "x$enable_symbol_versions" != xgeneric ; then
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AC_MSG_RESULT([])
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AC_MSG_ERROR(
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[unknown symbol versioning variant '$enable_symbol_versions'])
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fi
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AC_MSG_RESULT([yes ($enable_symbol_versions)])
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fi
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