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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.
This commit is contained in:
Sergey Kosukhin 2024-03-12 20:03:49 +01:00 committed by Lasse Collin
parent a4f2e20d84
commit f56ed6fac6
1 changed files with 50 additions and 41 deletions
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21
configure.ac
View File

@ -716,6 +716,7 @@ elif test "x$enable_shared" = xno ; then
enable_symbol_versions=no enable_symbol_versions=no
AC_MSG_RESULT([no (not building a shared library)]) AC_MSG_RESULT([no (not building a shared library)])
else else
if test "x$enable_symbol_versions" = xyes ; then
case "$host_cpu-$host_os" in case "$host_cpu-$host_os" in
microblaze*) microblaze*)
# GCC 12 on MicroBlaze doesn't support __symver__ # GCC 12 on MicroBlaze doesn't support __symver__
@ -726,6 +727,15 @@ else
enable_symbol_versions=generic enable_symbol_versions=generic
;; ;;
*-linux*) *-linux*)
enable_symbol_versions=linux
;;
*)
enable_symbol_versions=generic
;;
esac
fi
if test "x$enable_symbol_versions" = xlinux ; then
case "$pic_mode-$enable_static" in case "$pic_mode-$enable_static" in
default-*) default-*)
# Use symvers if PIC is defined. # Use symvers if PIC is defined.
@ -746,7 +756,6 @@ else
possibly picking only src/liblzma/.libs/liblzma.a from the static build.]) possibly picking only src/liblzma/.libs/liblzma.a from the static build.])
;; ;;
esac esac
enable_symbol_versions=linux
AC_DEFINE_UNQUOTED([HAVE_SYMBOL_VERSIONS_LINUX], AC_DEFINE_UNQUOTED([HAVE_SYMBOL_VERSIONS_LINUX],
[$have_symbol_versions_linux], [$have_symbol_versions_linux],
[Define to 1 to if GNU/Linux-specific details [Define to 1 to if GNU/Linux-specific details
@ -757,11 +766,11 @@ else
time with Libtool if neither --with-pic nor time with Libtool if neither --with-pic nor
--without-pic is used). This define must be --without-pic is used). This define must be
used together with liblzma_linux.map.]) used together with liblzma_linux.map.])
;; elif test "x$enable_symbol_versions" != xgeneric ; then
*) AC_MSG_RESULT([])
enable_symbol_versions=generic AC_MSG_ERROR(
;; [unknown symbol versioning variant '$enable_symbol_versions'])
esac fi
AC_MSG_RESULT([yes ($enable_symbol_versions)]) AC_MSG_RESULT([yes ($enable_symbol_versions)])
fi fi