# longer then the ANSI minimum of 509 bytes.
#
# NOTE 3: the relative order of these options matters:
-# -Wextra before -W, and -pedantic* before -Werror=d-a-s.
+# -Wextra before -W
+# -std=c89 before -ansi
+# -pedantic* before -Werror=d-a-s
#
-*) for opt in -ansi -std=c89 $pedantic \
+*) for opt in -std=c89 -ansi $pedantic \
-Werror=declaration-after-statement \
-Wextra -W \
-Wc++-compat -Wwrite-strings
echo "cflags.SH: Adding $opt."
stdflags="$stdflags $opt"
;;
- *) case "$opt" in
- -W)
- # -Wextra is the modern form of -W, so add
- # -W only if -Wextra is not there already.
- case " $warn " in
- *-Wextra*) ;;
- *)
- echo "cflags.SH: Adding $opt."
- warn="$warn $opt"
- ;;
- esac
- ;;
- -Werror=declaration-after-statement)
- # -pedantic* (with -std=c89) covers -Werror=d-a-s.
- case "$stdflags$warn" in
- *-std=c89*-pedantic*|*-pedantic*-std=c89*) ;;
- *)
- echo "cflags.SH: Adding $opt."
- warn="$warn $opt"
- ;;
- esac
- ;;
+ -ansi)
+ # -std=c89 is the modern form of -ansi, so add
+ # -ansi only if -std=c89 is not there already.
+ case " $stdflags " in
+ *-std=c89*) ;;
+ *)
+ echo "cflags.SH: Adding $opt."
+ stdflags="$stdflags $opt"
+ ;;
+ esac
+ ;;
+ -W)
+ # -Wextra is the modern form of -W, so add
+ # -W only if -Wextra is not there already.
+ case " $warn " in
+ *-Wextra*) ;;
+ *)
+ echo "cflags.SH: Adding $opt."
+ warn="$warn $opt"
+ ;;
+ esac
+ ;;
+ -Werror=declaration-after-statement)
+ # -pedantic* (with -std=c89) covers -Werror=d-a-s.
+ case "$stdflags$warn" in
+ *-std=c89*-pedantic*|*-pedantic*-std=c89*) ;;
*)
echo "cflags.SH: Adding $opt."
warn="$warn $opt"
;;
esac
+ ;;
+ *)
+ echo "cflags.SH: Adding $opt."
+ warn="$warn $opt"
+ ;;
esac
fi
;;
esac
done
+# If usethreads and clang, add -Wthread-safety for clang 3.6 or later.
+# gccversion is defined also for clang, because compat, use that for matching.
+# Apple overwrites clang version with XCode version, see hints/darwin.sh
+# for the gory details. Aggressively forward-proofing.
+case "$usethreads" in
+define)
+case "$gccversion" in
+*" Clang 3."[56789]*|*" Clang "[456]*|*"Apple LLVM 6.1"*|*"Apple LLVM "[789]*)
+ for f in -Wthread-safety
+ do
+ case " $warn " in
+ *" $f "*) ;; # Skip if already there.
+ *)
+ echo "cflags.SH: Adding $f because usethreads and clang and gccversion '$gccversion'"
+ warn="$warn $f"
+ ;;
+ esac
+ done
+;;
+esac
+;;
+esac
+
echo "cflags.SH: cc = $cc"
echo "cflags.SH: ccflags = $ccflags"
echo "cflags.SH: stdflags = $stdflags"
# Code to set any extra flags here.
extra=''
+# Protect double or single quotes for better restoring of ccflags.
+myccflags=`echo $ccflags | sed -e 's/"/\\\"/g' -e "s/'/\\\'/g"`
+
echo "Extracting cflags (with variable substitutions)"
# This section of the file will have variable substitutions done on it.
# Move anything that needs config subs from !NO!SUBS! section to !GROK!THIS!.
# This file is generated by cflags.SH
# Used to restore possible edits by cflags.SH.
-myccflags="$ccflags"
+myccflags="$myccflags"
+
# Extra warnings, used e.g. for gcc.
warn="$warn"
# Extra standardness.
# allow variables like toke_cflags to be evaluated
- if echo $file | grep -v / >/dev/null
- then
- eval 'eval ${'"${file}_cflags"'-""}'
- fi
+ case "$file" in
+ */*) ;;
+ *) eval 'eval ${'"${file}_cflags"'-""}' ;;
+ esac
# or customize here