commit 623cc13b60bc7345ad8a45bb1a6ab95e16dba6b0
Author: Jean-Marc Lasgouttes <[email protected]>
Date: Thu Apr 25 12:30:48 2024 +0200
Autotools: optimize with -Og when debugging
When debug (-g) is enabled (default when compiling a development
version), the existing -O optimization level is not correct, since
many variables are optimized out when debugging.
Use -Og instead, and condition not on compiling a development version,
but on --enable-debug. This is the same by default, but it more
precise in our case.
---
INSTALL | 5 +++--
config/lyxinclude.m4 | 4 ++--
2 files changed, 5 insertions(+), 4 deletions(-)
diff --git a/INSTALL b/INSTALL
index ec959ff6a8..9496fc16c7 100644
--- a/INSTALL
+++ b/INSTALL
@@ -107,7 +107,7 @@ flags:
the settings in terms of various options that are described later
release prerelease development profiling gprof
- optimization -O2 -O2 -O -O2 -O2
+ optimization -O2 -O2 -Og -O2 -O2
assertions X X
stdlib-assertions X
stdlib-debug
@@ -213,10 +213,11 @@ values):
o --enable-optimization=VALUE enables you to set optimization to a
higher level than the default, for example --enable-optimization=-O3.
+ Default is -Og when debugging is enabled, -O2 otherwise.
o --disable-optimization - you can use this to disable compiler
optimization of LyX. The compile may be much quicker with some
- compilers, but LyX will run more slowly.
+ compilers, but LyX will be slower.
o --enable-debug will add debug information to your binary. This
requires a lot more disk space, but is a must if you want to try
diff --git a/config/lyxinclude.m4 b/config/lyxinclude.m4
index 90113fdf37..03e40581c9 100644
--- a/config/lyxinclude.m4
+++ b/config/lyxinclude.m4
@@ -326,8 +326,8 @@ AC_ARG_ENABLE(optimization,
enable_optimization=yes;)
case $enable_optimization in
yes)
- if test $lyx_devel_version = yes ; then
- lyx_optim=-O
+ if test $enable_debug = yes ; then
+ lyx_optim=-Og
else
lyx_optim=-O2
fi;;
--
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