diff options
| author | Lasse Collin <lasse.collin@tukaani.org> | 2023-03-21 13:11:49 +0200 |
|---|---|---|
| committer | Lasse Collin <lasse.collin@tukaani.org> | 2023-03-21 13:11:49 +0200 |
| commit | 5a5bd7f871818029d5ccbe189f087f591258c294 (patch) | |
| tree | 7041ec53d180e87417c7df125d3e42224cbb01e0 /src/scripts | |
| parent | liblzma: Silence -Wsign-conversion in SSE2 code in memcmplen.h. (diff) | |
| download | xz-5a5bd7f871818029d5ccbe189f087f591258c294.tar.xz | |
Build: Fix --disable-threads breaking the building of shared libs.
This is broken in the releases 5.2.6 to 5.4.2. A workaround
for these releases is to pass EGREP='grep -E' as an argument
to configure in addition to --disable-threads.
The problem appeared when m4/ax_pthread.m4 was updated in
the commit 6629ed929cc7d45a11e385f357ab58ec15e7e4ad which
introduced the use of AC_EGREP_CPP. AC_EGREP_CPP calls
AC_REQUIRE([AC_PROG_EGREP]) to set the shell variable EGREP
but this was only executed if POSIX threads were enabled.
Libtool code also has AC_REQUIRE([AC_PROG_EGREP]) but Autoconf
omits it as AC_PROG_EGREP has already been required earlier.
Thus, if not using POSIX threads, the shell variable EGREP
would be undefined in the Libtool code in configure.
ax_pthread.m4 is fine. The bug was in configure.ac which called
AX_PTHREAD conditionally in an incorrect way. Using AS_CASE
ensures that all AC_REQUIREs get always run.
Thanks to Frank Busse for reporting the bug.
Fixes: https://github.com/tukaani-project/xz/issues/45
Diffstat (limited to 'src/scripts')
0 files changed, 0 insertions, 0 deletions