diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 91 |
1 files changed, 50 insertions, 41 deletions
diff --git a/configure.ac b/configure.ac index 075567f6..3200f89c 100644 --- a/configure.ac +++ b/configure.ac @@ -716,52 +716,61 @@ elif test "x$enable_shared" = xno ; then enable_symbol_versions=no AC_MSG_RESULT([no (not building a shared library)]) else - case "$host_cpu-$host_os" in - microblaze*) - # GCC 12 on MicroBlaze doesn't support __symver__ - # attribute. It's simplest and safest to use the - # generic version on that platform since then only - # the linker script is needed. The RHEL/CentOS 7 - # compatibility symbols don't matter on MicroBlaze. - enable_symbol_versions=generic - ;; - *-linux*) - case "$pic_mode-$enable_static" in - default-*) - # Use symvers if PIC is defined. - have_symbol_versions_linux=2 - ;; - *-no) - # Not building static library. - # Use symvers unconditionally. - have_symbol_versions_linux=1 - ;; - *) - AC_MSG_RESULT([]) - AC_MSG_ERROR([ + if test "x$enable_symbol_versions" = xyes ; then + case "$host_cpu-$host_os" in + microblaze*) + # GCC 12 on MicroBlaze doesn't support __symver__ + # attribute. It's simplest and safest to use the + # generic version on that platform since then only + # the linker script is needed. The RHEL/CentOS 7 + # compatibility symbols don't matter on MicroBlaze. + enable_symbol_versions=generic + ;; + *-linux*) + enable_symbol_versions=linux + ;; + *) + enable_symbol_versions=generic + ;; + esac + fi + + if test "x$enable_symbol_versions" = xlinux ; then + case "$pic_mode-$enable_static" in + default-*) + # Use symvers if PIC is defined. + have_symbol_versions_linux=2 + ;; + *-no) + # Not building static library. + # Use symvers unconditionally. + have_symbol_versions_linux=1 + ;; + *) + AC_MSG_RESULT([]) + AC_MSG_ERROR([ On GNU/Linux, building both shared and static library at the same time is not supported if --with-pic or --without-pic is used. Use either --disable-shared or --disable-static to build one type of library at a time. If both types are needed, build one at a time, possibly picking only src/liblzma/.libs/liblzma.a from the static build.]) - ;; - esac - enable_symbol_versions=linux - AC_DEFINE_UNQUOTED([HAVE_SYMBOL_VERSIONS_LINUX], - [$have_symbol_versions_linux], - [Define to 1 to if GNU/Linux-specific details - are unconditionally wanted for symbol - versioning. Define to 2 to if these are wanted - only if also PIC is defined (allows building - both shared and static liblzma at the same - time with Libtool if neither --with-pic nor - --without-pic is used). This define must be - used together with liblzma_linux.map.]) - ;; - *) - enable_symbol_versions=generic - ;; - esac + ;; + esac + AC_DEFINE_UNQUOTED([HAVE_SYMBOL_VERSIONS_LINUX], + [$have_symbol_versions_linux], + [Define to 1 to if GNU/Linux-specific details + are unconditionally wanted for symbol + versioning. Define to 2 to if these are wanted + only if also PIC is defined (allows building + both shared and static liblzma at the same + time with Libtool if neither --with-pic nor + --without-pic is used). This define must be + used together with liblzma_linux.map.]) + elif test "x$enable_symbol_versions" != xgeneric ; then + AC_MSG_RESULT([]) + AC_MSG_ERROR( + [unknown symbol versioning variant '$enable_symbol_versions']) + fi AC_MSG_RESULT([yes ($enable_symbol_versions)]) fi |