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| author | Simon Marchi <simon.marchi@polymtl.ca> | 2021-04-21 14:51:10 -0400 |
|---|---|---|
| committer | Mike Frysinger <vapier@gentoo.org> | 2021-04-21 19:48:35 -0400 |
| commit | 1f195bc327c5760d34fa571a758496900b48456c (patch) | |
| tree | 8a000c68cc54838a3e959297dce971827735e08e /sim/avr/configure | |
| parent | 7e7a35fbca94c5bfe45781067c75671ba508a0c8 (diff) | |
| download | gdb-1f195bc327c5760d34fa571a758496900b48456c.zip gdb-1f195bc327c5760d34fa571a758496900b48456c.tar.gz gdb-1f195bc327c5760d34fa571a758496900b48456c.tar.bz2 | |
sim: use -Werror when probing for supported warning flags
When building with clang, we get:
error: unknown warning option '-Wmissing-parameter-type' [-Werror,-Wunknown-warning-option]
This is because clang only warns by default when encountering an unknown
warning option, and the probe for supported warning flags is done
without -Werror. All flags are therefore accepted by configure, but
then it breaks when actually compiling a source file with -Werror.
This is equivalent to this commit in gdb:
3e019bdc20eb81b91ab5bc774386201b874c0bac
gdb: Use -Werror when checking for (un)supported warning flags
We then see some other compilation errors when building with clang and
-Werror, they can be dealt with later.
Diffstat (limited to 'sim/avr/configure')
| -rwxr-xr-x | sim/avr/configure | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sim/avr/configure b/sim/avr/configure index 461f80a..7484bd8 100755 --- a/sim/avr/configure +++ b/sim/avr/configure @@ -12072,7 +12072,7 @@ $as_echo_n "checking compiler warning flags... " >&6; } -Werr*) WERROR_CFLAGS=-Werror ;; *) # Check that GCC accepts it saved_CFLAGS="$CFLAGS" - CFLAGS="$CFLAGS $w" + CFLAGS="$CFLAGS -Werror $w" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ |