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authorSimon Marchi <simon.marchi@ericsson.com>2018-09-18 23:40:55 -0400
committerSimon Marchi <simon.marchi@polymtl.ca>2018-09-18 23:40:55 -0400
commitb567ca638c274e27969975403b885973af9ccae6 (patch)
tree86bf6c86b2929f9471747d95457f391ea7f8204c /gdb/gnulib/configure
parent48219c6a06091b873f39c64c5df12ba7ec37a2e0 (diff)
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Carry the gnulib getcwd backport as a patch
Commit e2fc52e7457 ("Fix PR gdb/23558: Use system's 'getcwd' when cross-compiling GDB") backported some changes from a future gnulib version to our import. However, this means that every time someone wants to change our gnulib import (e.g. add a module), they must make sure not to include that backported change. It also means that someone running the update-gnulib.sh script without changes will get some diffs and wonder why. Instead, I suggest we carry that backport as a patch applied by the update-gnulib.sh script after running the import tool. It will make it clear what backport or local modification we have and should make running update-gnulib.sh give a reproducible result. There is a hunk in the configure file in this patch, this is because the commit that backported the getcwd bits didn't include the re-generated configure. Note: you'll need this patch as well to get deterministic results: Generate aclocal-m4-deps.mk more deterministically and portably. https://sourceware.org/ml/gdb-patches/2018-09/msg00643.html gdb/ChangeLog: * patches/0001-Fix-PR-gdb-23558-Use-system-s-getcwd-when-cross-comp.patch: New file. * update-gnulib.sh: Apply patch. * configure: Re-generate.
Diffstat (limited to 'gdb/gnulib/configure')
-rw-r--r--gdb/gnulib/configure18
1 files changed, 15 insertions, 3 deletions
diff --git a/gdb/gnulib/configure b/gdb/gnulib/configure
index 5fd52d4..dc6c5b6 100644
--- a/gdb/gnulib/configure
+++ b/gdb/gnulib/configure
@@ -17696,10 +17696,22 @@ else
# Arrange for deletion of the temporary directory this test creates.
ac_clean_files="$ac_clean_files confdir3"
if test "$cross_compiling" = yes; then :
- case "$host_os" in
- aix*) gl_cv_func_getcwd_path_max='no, it has the AIX bug';;
- *) gl_cv_func_getcwd_path_max=no;;
+ # Cross-compilation guesses:
+ case "$host_os" in
+ aix*) # On AIX, it has the AIX bug.
+ gl_cv_func_getcwd_path_max='no, it has the AIX bug' ;;
+ gnu*) # On Hurd, it is 'yes'.
+ gl_cv_func_getcwd_path_max=yes ;;
+ linux* | kfreebsd*)
+ # On older Linux+glibc it's 'no, but it is partly working',
+ # on newer Linux+glibc it's 'yes'.
+ # On Linux+musl libc, it's 'no, but it is partly working'.
+ # On kFreeBSD+glibc, it's 'no, but it is partly working'.
+ gl_cv_func_getcwd_path_max='no, but it is partly working' ;;
+ *) # If we don't know, assume the worst.
+ gl_cv_func_getcwd_path_max=no ;;
esac
+
else
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */