configure.ac | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
New commits:
commit 75450b3affc424cccfc68eae13a3271204108b09
Author: Luboš Luňák <l.lu...@collabora.com>
AuthorDate: Wed Nov 17 11:43:00 2021 +0100
Commit: Luboš Luňák <l.lu...@collabora.com>
CommitDate: Wed Nov 17 14:11:57 2021 +0100
disable split debug if --enable-lto
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88389 is right that
split-debug doesn't make sense with LTO. Without -ffat-lto-objects
or with Clang .o files aren't even really object files that
would be normally usable. Since gcc complains if the combination
is used, explicitly avoid it.
Change-Id: I76992e94f4790238e5aaee691b5cec54fd0ef3a0
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/125379
Tested-by: Jenkins
Reviewed-by: Luboš Luňák <l.lu...@collabora.com>
diff --git a/configure.ac b/configure.ac
index 1872faaafbd7..7ebeeaf6e62f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -4557,8 +4557,16 @@ AC_SUBST(LD_GC_SECTIONS)
HAVE_GSPLIT_DWARF=
if test "$enable_split_debug" != no; then
+ use_split_debug=
+ if test -n "$ENABLE_LTO"; then
+ true # Inherently incompatible, since no debug info is created while
compiling, GCC complains.
+ elif test "$enable_split_debug" = yes; then
+ use_split_debug=1
dnl Currently by default enabled only on Linux, feel free to set
test_split_debug above also for other platforms.
- if test "$enable_split_debug" = yes -o \( "$test_split_debug" = "yes" -a
-n "$ENABLE_DEBUG$ENABLE_DBGUTIL" \); then
+ elif test "$test_split_debug" = "yes" -a -n
"$ENABLE_DEBUG$ENABLE_DBGUTIL"; then
+ use_split_debug=1
+ fi
+ if test -n "$use_split_debug"; then
AC_MSG_CHECKING([whether $CC_BASE supports -gsplit-dwarf])
save_CFLAGS=$CFLAGS
CFLAGS="$CFLAGS -Werror -gsplit-dwarf"
@@ -4574,7 +4582,7 @@ if test "$enable_split_debug" != no; then
fi
fi
fi
- if test -z "$HAVE_GCC_SPLIT_DWARF" -a "$test_split_debug" = "yes" -a -n
"$ENABLE_DEBUG$ENABLE_DBGUTIL"; then
+ if test -z "$HAVE_GCC_SPLIT_DWARF" -a "$test_split_debug" = "yes" -a -n
"$use_split_debug"; then
AC_MSG_WARN([Compiler is not capable of creating split debug info,
linking will require more time and disk space.])
add_warning "Compiler is not capable of creating split debug info,
linking will require more time and disk space."
fi
