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configure, Darwin: Set appropriate defaults for host-shared. 

Darwin x86_64 and aarch64 platforms are PIC (shared) by default,
and user-space code must be built in this mode.  The patch
ensures that this is set correctly and applies a default when
--enable-host-shared is not set.

Signed-off-by: Iain Sandoe <iain@sandoe.co.uk>

ChangeLog:

	* configure: Regenerate.
	* configure.ac: Ensure that PIC (shared) defaults are set
	correctly for Darwin.
This commit is contained in:
Iain Sandoe 2021-11-12 17:05:13 +00:00
parent e464119128
commit a1d2b16202
2 changed files with 29 additions and 2 deletions
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16
configure vendored
View File

@ -8447,8 +8447,20 @@ fi
# Check whether --enable-host-shared was given.
if test "${enable_host_shared+set}" = set; then :
enableval=$enable_host_shared; host_shared=$enableval
case $target in
x86_64-*-darwin* | aarch64-*-darwin*)
if test x$host_shared != xyes ; then
# PIC is the default, and actually cannot be switched off.
echo configure.ac: warning: PIC code is required for the configured target, host-shared setting ignored. 1>&2
host_shared=yes
fi ;;
*) ;;
esac
else
host_shared=no
case $target in
x86_64-*-darwin* | aarch64-*-darwin*) host_shared=yes ;;
*) host_shared=no ;;
esac
fi
@ -10083,6 +10095,8 @@ done
# Generate default definitions for YACC, M4, LEX and other programs that run
# on the build machine. These are used if the Makefile can't locate these
# programs in objdir.

15
configure.ac
View File

@ -1859,7 +1859,20 @@ AC_SUBST(extra_linker_plugin_flags)
AC_ARG_ENABLE(host-shared,
[AS_HELP_STRING([--enable-host-shared],
[build host code as shared libraries])],
[host_shared=$enableval], [host_shared=no])
[host_shared=$enableval
case $target in
x86_64-*-darwin* | aarch64-*-darwin*)
if test x$host_shared != xyes ; then
# PIC is the default, and actually cannot be switched off.
echo configure.ac: warning: PIC code is required for the configured target, host-shared setting ignored. 1>&2
host_shared=yes
fi ;;
*) ;;
esac],
[case $target in
x86_64-*-darwin* | aarch64-*-darwin*) host_shared=yes ;;
*) host_shared=no ;;
esac])
AC_SUBST(host_shared)
# By default, C and C++ are the only stage 1 languages.