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| author | Iain Sandoe <iain@sandoe.co.uk> | 2021-11-12 17:05:13 +0000 |
|---|---|---|
| committer | Iain Sandoe <iain@sandoe.co.uk> | 2021-11-16 19:44:51 +0000 |
| commit | a1d2b16202601e597fac1c0e6af6ee8cd09b52c0 (patch) | |
| tree | 36caf4313d284a18fe291c6e089a1c7733aadca8 | |
| parent | e4641191287ca613529d78a906afe4f029c1c3cd (diff) | |
| download | gcc-a1d2b16202601e597fac1c0e6af6ee8cd09b52c0.zip gcc-a1d2b16202601e597fac1c0e6af6ee8cd09b52c0.tar.gz gcc-a1d2b16202601e597fac1c0e6af6ee8cd09b52c0.tar.bz2 | |
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.
| -rwxr-xr-x | configure | 16 | ||||
| -rw-r--r-- | configure.ac | 15 |
2 files changed, 29 insertions, 2 deletions
@@ -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 $target in + x86_64-*-darwin* | aarch64-*-darwin*) host_shared=yes ;; + *) host_shared=no ;; + esac fi @@ -10083,6 +10095,8 @@ done + + # Generate default definitions for YACC, M4, LEX and other programs that run # on the build machine. These are used if the Makefile can't locate these # programs in objdir. diff --git a/configure.ac b/configure.ac index 550e699..bed60bc 100644 --- a/configure.ac +++ b/configure.ac @@ -1859,7 +1859,20 @@ AC_SUBST(extra_linker_plugin_flags) AC_ARG_ENABLE(host-shared, [AS_HELP_STRING([--enable-host-shared], [build host code as shared libraries])], -[host_shared=$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. |