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[PATCH] manywarnings: port to GCC 8.0
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From: |
Paul Eggert |
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Subject: |
[PATCH] manywarnings: port to GCC 8.0 |
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Date: |
Sat, 28 Apr 2018 13:55:32 -0700 |
* build-aux/gcc-warning.spec: Add -Wcatch-value,
-Wclass-memaccess, -Wdo-subscript, -Wextra-semi. Adjust to the
fact that the GCC help message now mentions operands for
-Warray-bounds, -Wformat, -Wformat-overflow, -Wformat-truncation,
-Wimplicit-fallthrough, -Wplacement-new, -Wshift-overflow,
-Wstrict-aliasing, -Wstrict-overflow, -Wstringop-overflow,
and -Wunused-const-variable.
* m4/manywarnings.m4 (gl_MANYWARN_ALL_GCC): Add -Wattribute-alias,
-Wcast-align=strict, -Wcast-function-type, -Wif-not-aligned,
-Wmissing-attributes, -Wmultistatement-macros,
-Wpacked-not-aligned, -Wsizeof-pointer-div, -Wstringop-truncation,
-Wsuggest-attribute=cold, -Wsuggest-attribute=malloc.
---
ChangeLog | 16 ++++++++++++++++
build-aux/gcc-warning.spec | 30 +++++++++++++++++-------------
m4/manywarnings.m4 | 20 +++++++++++++++-----
3 files changed, 48 insertions(+), 18 deletions(-)
diff --git a/ChangeLog b/ChangeLog
index 9f809cce8..1ef9799f3 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,19 @@
+2018-04-27 Paul Eggert <address@hidden>
+
+ manywarnings: port to GCC 8.0
+ * build-aux/gcc-warning.spec: Add -Wcatch-value,
+ -Wclass-memaccess, -Wdo-subscript, -Wextra-semi. Adjust to the
+ fact that the GCC help message now mentions operands for
+ -Warray-bounds, -Wformat, -Wformat-overflow, -Wformat-truncation,
+ -Wimplicit-fallthrough, -Wplacement-new, -Wshift-overflow,
+ -Wstrict-aliasing, -Wstrict-overflow, -Wstringop-overflow,
+ and -Wunused-const-variable.
+ * m4/manywarnings.m4 (gl_MANYWARN_ALL_GCC): Add -Wattribute-alias,
+ -Wcast-align=strict, -Wcast-function-type, -Wif-not-aligned,
+ -Wmissing-attributes, -Wmultistatement-macros,
+ -Wpacked-not-aligned, -Wsizeof-pointer-div, -Wstringop-truncation,
+ -Wsuggest-attribute=cold, -Wsuggest-attribute=malloc.
+
2018-04-24 Bruno Haible <address@hidden>
sys_socket: Make SO_REUSEPORT available across platforms.
diff --git a/build-aux/gcc-warning.spec b/build-aux/gcc-warning.spec
index 9b9c39faf..2ffdb2ba4 100644
--- a/build-aux/gcc-warning.spec
+++ b/build-aux/gcc-warning.spec
@@ -6,7 +6,6 @@
-Waggregate-return obsolescent
-Waliasing fortran
-Walign-commons fortran
--Waligned-new c++
-Waligned-new=[none|global|all] c++
-Walloca we like alloca in small doses
-Walloca-larger-than=<number> FIXME: choose something sane?
@@ -15,7 +14,7 @@
-Wampersand fortran
-Wargument-mismatch fortran
-Warray-bounds covered by -Warray-bounds=
--Warray-bounds= handled specially by
gl_MANYWARN_ALL_GCC
+-Warray-bounds=<0,2> handled specially by gl_MANYWARN_ALL_GCC
-Warray-temporaries fortran
-Wassign-intercept objc/objc++
-Wc++-compat FIXME maybe? borderline. some will
want this
@@ -28,7 +27,10 @@
-Wc90-c99-compat c compatibility
-Wc99-c11-compat c compatibility
-Wcast-qual FIXME maybe? too much noise; encourages
bad changes
+-Wcatch-value c++
+-Wcatch-value=<0,3> c++
-Wcharacter-truncation fortran
+-Wclass-memaccess c++
-Wcompare-reals fortran
-Wconditionally-supported c++ and objc++
-Wconversion FIXME maybe? too much noise; encourages
bad changes
@@ -38,20 +40,22 @@
-Wdeclaration-after-statement FIXME: do not want. others may
-Wdelete-incomplete c++ and objc++
-Wdelete-non-virtual-dtor c++
+-Wdo-subscript fortran
-Weffc++ c++
-Werror-implicit-function-declaration deprecated
+-Wextra-semi c++
-Wfloat-conversion FIXME maybe? borderline. some will
want this
-Wfloat-equal FIXME maybe? borderline. some will
want this
-Wformat covered by -Wformat=2
--Wformat= gcc --help=warnings artifact
--Wformat-overflow covered by -Wformat-overflow=2
--Wformat-overflow= handled specially by gl_MANYWARN_ALL_GCC
+-Wformat=<0,2> gcc --help=warnings artifact
+-Wformat-overflow<0,2> gcc --help=warnings artifact
+-Wformat-overflow=<0,2> handled specially by
gl_MANYWARN_ALL_GCC
-Wformat-truncation covered by -Wformat-truncation=2
--Wformat-truncation= handled specially by gl_MANYWARN_ALL_GCC
+-Wformat-truncation=<0,2> handled specially by gl_MANYWARN_ALL_GCC
-Wframe-larger-than=<number> FIXME: choose something sane?
-Wfunction-elimination fortran
-Wimplicit-fallthrough covered by -Wimplicit-fallthrough=2
--Wimplicit-fallthrough= handled specially by
gl_MANYWARN_ALL_GCC
+-Wimplicit-fallthrough=<0,5> handled specially by gl_MANYWARN_ALL_GCC
-Wimplicit-interface fortran
-Wimplicit-procedure fortran
-Winherited-variadic-ctor c++
@@ -81,7 +85,7 @@
-Wpadded FIXME maybe? warns about "stabil"
member in /usr/include/bits/timex.h
-Wpedantic FIXME: too strict?
-Wplacement-new c++
--Wplacement-new= c++
+-Wplacement-new=<0,2> c++
-Wpmf-conversions c++ and objc++
-Wproperty-assign-default objc++
-Wprotocol objc++
@@ -99,18 +103,18 @@
-Wshadow=local covered by -Wshadow
-Wshadow-local covered by -Wshadow
-Wshift-overflow covered by -Wshift-overflow=2
--Wshift-overflow= gcc --help=warnings artifact
+-Wshift-overflow=<0,2> gcc --help=warnings artifact
-Wsign-compare FIXME maybe? borderline. some will
want this
-Wsign-conversion FIXME maybe? borderline. some will
want this
-Wsign-promo c++ and objc++
-Wsized-deallocation c++ and objc++
-Wstack-usage=<number> FIXME: choose something sane?
--Wstrict-aliasing= FIXME: choose something sane?
+-Wstrict-aliasing=<0,3> FIXME: choose something sane?
-Wstrict-null-sentinel c++ and objc++
--Wstrict-overflow= FIXME: choose something sane?
+-Wstrict-overflow=<0,5> FIXME: choose something sane?
-Wstrict-selector-match objc and objc++
-Wstringop-overflow covered by -Wstringop-overflow=
--Wstringop-overflow= handled specially by gl_MANYWARN_ALL_GCC
+-Wstringop-overflow=<0,4> handled specially by gl_MANYWARN_ALL_GCC
-Wsubobject-linkage c++ and objc++
-Wsuggest-override c++ and objc++
-Wsurprising fortran
@@ -129,7 +133,7 @@
-Wunreachable-code obsolescent no-op
-Wunsuffixed-float-constants triggers warning in gnulib's timespec.h
-Wunused-const-variable covered by
-Wunusec-const-variable=2
--Wunused-const-variable= gcc --help=warnings artifact
+-Wunused-const-variable=<0,2> gcc --help=warnings artifact
-Wunused-dummy-argument fortran
-Wuse-without-only fortran
-Wuseless-cast c++ and objc++
diff --git a/m4/manywarnings.m4 b/m4/manywarnings.m4
index 18249b8f2..60c0e4051 100644
--- a/m4/manywarnings.m4
+++ b/m4/manywarnings.m4
@@ -1,4 +1,4 @@
-# manywarnings.m4 serial 13
+# manywarnings.m4 serial 14
dnl Copyright (C) 2008-2018 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
@@ -106,10 +106,9 @@ m4_defun([gl_MANYWARN_ALL_GCC(C)],
# To compare this list to your installed GCC's, run this Bash command:
#
# comm -3 \
- # <(sed -n 's/^ *\(-[^ 0-9][^ ]*\) .*/\1/p' manywarnings.m4 | sort) \
- # <(gcc --help=warnings | sed -n 's/^ \(-[^ ]*\) .*/\1/p' | sort |
- # grep -v -x -F -f <(
- # awk '/^[^#]/ {print $1}' ../build-aux/gcc-warning.spec))
+ # <((sed -n 's/^ *\(-[^ 0-9][^ ]*\) .*/\1/p' manywarnings.m4; \
+ # awk '/^[^#]/ {print $1}' ../build-aux/gcc-warning.spec) | sort) \
+ # <(gcc --help=warnings | sed -n 's/^ \(-[^ ]*\) .*/\1/p' | sort)
gl_manywarn_set=
for gl_manywarn_item in -fno-common \
@@ -118,6 +117,7 @@ m4_defun([gl_MANYWARN_ALL_GCC(C)],
-Waddress \
-Waggressive-loop-optimizations \
-Wall \
+ -Wattribute-alias \
-Wattributes \
-Wbad-function-cast \
-Wbool-compare \
@@ -125,6 +125,8 @@ m4_defun([gl_MANYWARN_ALL_GCC(C)],
-Wbuiltin-declaration-mismatch \
-Wbuiltin-macro-redefined \
-Wcast-align \
+ -Wcast-align=strict \
+ -Wcast-function-type \
-Wchar-subscripts \
-Wchkp \
-Wclobbered \
@@ -160,6 +162,7 @@ m4_defun([gl_MANYWARN_ALL_GCC(C)],
-Wframe-address \
-Wfree-nonheap-object \
-Whsa \
+ -Wif-not-aligned \
-Wignored-attributes \
-Wignored-qualifiers \
-Wimplicit \
@@ -181,6 +184,7 @@ m4_defun([gl_MANYWARN_ALL_GCC(C)],
-Wmemset-elt-size \
-Wmemset-transposed-args \
-Wmisleading-indentation \
+ -Wmissing-attributes \
-Wmissing-braces \
-Wmissing-declarations \
-Wmissing-field-initializers \
@@ -188,6 +192,7 @@ m4_defun([gl_MANYWARN_ALL_GCC(C)],
-Wmissing-parameter-type \
-Wmissing-prototypes \
-Wmultichar \
+ -Wmultistatement-macros \
-Wnarrowing \
-Wnested-externs \
-Wnonnull \
@@ -202,6 +207,7 @@ m4_defun([gl_MANYWARN_ALL_GCC(C)],
-Woverride-init \
-Wpacked \
-Wpacked-bitfield-compat \
+ -Wpacked-not-aligned \
-Wparentheses \
-Wpointer-arith \
-Wpointer-compare \
@@ -219,13 +225,17 @@ m4_defun([gl_MANYWARN_ALL_GCC(C)],
-Wshift-count-overflow \
-Wshift-negative-value \
-Wsizeof-array-argument \
+ -Wsizeof-pointer-div \
-Wsizeof-pointer-memaccess \
-Wstack-protector \
-Wstrict-aliasing \
-Wstrict-overflow \
-Wstrict-prototypes \
+ -Wstringop-truncation \
+ -Wsuggest-attribute=cold \
-Wsuggest-attribute=const \
-Wsuggest-attribute=format \
+ -Wsuggest-attribute=malloc \
-Wsuggest-attribute=noreturn \
-Wsuggest-attribute=pure \
-Wsuggest-final-methods \
--
2.17.0
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