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configure.ac: Only compile with -fPIC if the target supports it.

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* configure.ac: Only compile with -fPIC if the target
	supports it.
	* configure: Regenerate.

From-SVN: r227203
This commit is contained in:
Hans-Peter Nilsson 2015-08-25 23:32:06 +00:00 committed by Hans-Peter Nilsson
parent fd1b493945
commit 7ce9cf39a4
3 changed files with 31 additions and 3 deletions
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6
libbacktrace/ChangeLog
View File

@ -1,3 +1,9 @@
2015-08-26 Hans-Peter Nilsson <hp@axis.com>
* configure.ac: Only compile with -fPIC if the target
supports it.
* configure: Regenerate.
2015-08-24 Ulrich Weigand <Ulrich.Weigand@de.ibm.com>
* configure.ac: Set have_mmap to no on spu-*-* targets.

20
libbacktrace/configure vendored
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@ -11710,11 +11710,29 @@ fi
# When building as a target library, shared libraries may want to link
# this in. We don't want to provide another shared library to
# complicate dependencies. Instead, we just compile with -fPIC.
# complicate dependencies. Instead, we just compile with -fPIC, if
# the target supports compiling with that option.
PIC_FLAG=
if test -n "${with_target_subdir}"; then
ac_save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -fPIC"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
int
main ()
{
;
return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
PIC_FLAG=-fPIC
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
CFLAGS="$ac_save_CFLAGS"
fi
# Similarly, use -fPIC with --enable-host-shared:
# Check whether --enable-host-shared was given.
if test "${enable_host_shared+set}" = set; then :

8
libbacktrace/configure.ac
View File

@ -163,10 +163,14 @@ fi
# When building as a target library, shared libraries may want to link
# this in. We don't want to provide another shared library to
# complicate dependencies. Instead, we just compile with -fPIC.
# complicate dependencies. Instead, we just compile with -fPIC, if
# the target supports compiling with that option.
PIC_FLAG=
if test -n "${with_target_subdir}"; then
PIC_FLAG=-fPIC
ac_save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -fPIC"
AC_TRY_COMPILE([], [], [PIC_FLAG=-fPIC])
CFLAGS="$ac_save_CFLAGS"
fi
# Similarly, use -fPIC with --enable-host-shared:
AC_ARG_ENABLE(host-shared,