diff options
Diffstat (limited to 'm4')
| -rw-r--r-- | m4/manywarnings.m4 | 11 |
1 files changed, 8 insertions, 3 deletions
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. |