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# manywarnings.m4 serial 1
dnl Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
dnl From Simon Josefsson
# gl_MANYWARN_COMPLEMENT(OUTVAR, LISTVAR, REMOVEVAR)
# --------------------------------------------------
# Copy LISTVAR to OUTVAR except for the entries in REMOVEVAR.
# Elements separated by whitespace. In set logic terms, the function
# does OUTVAR = LISTVAR \ REMOVEVAR.
AC_DEFUN([gl_MANYWARN_COMPLEMENT],
[
gl_warn_set=
set x $2; shift
for gl_warn_item
do
case " $3 " in
*" $gl_warn_item "*)
;;
*)
gl_warn_set="$gl_warn_set $gl_warn_item"
;;
esac
done
$1=$gl_warn_set
])
# gl_MANYWARN_ALL_GCC(VARIABLE)
# -----------------------------
# Add all documented GCC (currently as per version 4.4) warning
# parameters to variable VARIABLE. Note that you need to test them
# using gl_WARN_ADD if you want to make sure your gcc understands it.
AC_DEFUN([gl_MANYWARN_ALL_GCC],
[
gl_manywarn_set=
for gl_manywarn_item in \
-Wall \
-W \
-Wformat-y2k \
-Wformat-nonliteral \
-Wformat-security \
-Winit-self \
-Wmissing-include-dirs \
-Wswitch-default \
-Wswitch-enum \
-Wunused \
-Wunknown-pragmas \
-Wstrict-aliasing \
-Wstrict-overflow \
-Wsystem-headers \
-Wfloat-equal \
-Wtraditional \
-Wtraditional-conversion \
-Wdeclaration-after-statement \
-Wundef \
-Wshadow \
-Wunsafe-loop-optimizations \
-Wpointer-arith \
-Wbad-function-cast \
-Wc++-compat \
-Wcast-qual \
-Wcast-align \
-Wwrite-strings \
-Wconversion \
-Wsign-conversion \
-Wlogical-op \
-Waggregate-return \
-Wstrict-prototypes \
-Wold-style-definition \
-Wmissing-prototypes \
-Wmissing-declarations \
-Wmissing-noreturn \
-Wmissing-format-attribute \
-Wpacked \
-Wpadded \
-Wredundant-decls \
-Wnested-externs \
-Wunreachable-code \
-Winline \
-Winvalid-pch \
-Wlong-long \
-Wvla \
-Wvolatile-register-var \
-Wdisabled-optimization \
-Wstack-protector \
-Woverlength-strings \
-Wbuiltin-macro-redefined \
-Wmudflap \
-Wpacked-bitfield-compat \
-Wsync-nand \
; do
gl_manywarn_set="$gl_manywarn_set $gl_manywarn_item"
done
# The following are not documented in the manual but are included in
# output from gcc --help=warnings.
for gl_manywarn_item in \
-Wattributes \
-Wcoverage-mismatch \
-Wmultichar \
-Wunused-macros \
; do
gl_manywarn_set="$gl_manywarn_set $gl_manywarn_item"
done
$1=$gl_manywarn_set
])
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