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| author | Paul Eggert <eggert@cs.ucla.edu> | 2023-04-23 08:53:55 -0700 |
|---|---|---|
| committer | Paul Eggert <eggert@cs.ucla.edu> | 2023-04-23 08:54:37 -0700 |
| commit | 76ef8271addae8a88d34ac8a1b10332f2774abed (patch) | |
| tree | fad4aca77e25d1ac3a9356ec45cdbe0f93947e60 | |
| parent | e46a05b5ee1cbe2d6d0c2ac679b71ad3fd2f7c2d (diff) | |
| download | gnulib-76ef8271addae8a88d34ac8a1b10332f2774abed.tar.gz | |
manywarnings: omit -fno-common in GCC 10+
* m4/manywarnings.m4 (gl_MANYWARN_ALL_GCC): Omit -fno-common
in GCC 10 and later, as it is the default there.
Check exit status of ‘gcc --version’.
| -rw-r--r-- | ChangeLog | 7 | ||||
| -rw-r--r-- | m4/manywarnings.m4 | 11 |
2 files changed, 15 insertions, 3 deletions
@@ -1,3 +1,10 @@ +2023-04-23 Paul Eggert <eggert@cs.ucla.edu> + + manywarnings: omit -fno-common in GCC 10+ + * m4/manywarnings.m4 (gl_MANYWARN_ALL_GCC): Omit -fno-common + in GCC 10 and later, as it is the default there. + Check exit status of ‘gcc --version’. + 2023-04-23 Bruno Haible <bruno@clisp.org> libunistring: Fix build on Windows, when a libunistring is installed. diff --git a/m4/manywarnings.m4 b/m4/manywarnings.m4 index 2fac86e20b..f88dcc5f12 100644 --- a/m4/manywarnings.m4 +++ b/m4/manywarnings.m4 @@ -109,7 +109,7 @@ AC_DEFUN([gl_MANYWARN_ALL_GCC(C)], # <(LC_ALL=C gcc --help=warnings | sed -n 's/^ \(-[^ ]*\) .*/\1/p' | sort) $1= - for gl_manywarn_item in -fanalyzer -fno-common \ + for gl_manywarn_item in -fanalyzer \ -Wall \ -Warith-conversion \ -Wbad-function-cast \ @@ -178,14 +178,19 @@ AC_DEFUN([gl_MANYWARN_ALL_GCC(C)], gl_AS_VAR_APPEND([$1], [' -Wvla-larger-than=4031']) # These are needed for older GCC versions. - if test -n "$GCC"; then - case `($CC --version) 2>/dev/null` in + if test -n "$GCC" && gl_gcc_version=`($CC --version) 2>/dev/null`; then + case $gl_gcc_version in 'gcc (GCC) '[[0-3]].* | \ 'gcc (GCC) '4.[[0-7]].*) gl_AS_VAR_APPEND([$1], [' -fdiagnostics-show-option']) gl_AS_VAR_APPEND([$1], [' -funit-at-a-time']) ;; esac + case $gl_gcc_version in + 'gcc (GCC) '[[0-9]].*) + gl_AS_VAR_APPEND([$1], [' -fno-common']) + ;; + esac fi # Disable specific options as needed. |