* [PATCH] manywarnings: update C warnings for GCC 14
@ 2024-04-24 6:19 Paul Eggert
0 siblings, 0 replies; only message in thread
From: Paul Eggert @ 2024-04-24 6:19 UTC (permalink / raw
To: bug-gnulib; +Cc: Paul Eggert
Adjust for C programs compiled by GCC 14.
(A C++ expert still needs to look at manywarnings-c++.m4.)
* build-aux/gcc-warning.spec: Add warnings introduced in GCC 13.
* m4/manywarnings.m4 (gl_MANYWARN_ALL_GCC):
Add -Wflex-array-member-not-at-end, -Wmissing-variable-declarations.
---
ChangeLog | 9 +++++++++
build-aux/gcc-warning.spec | 20 +++++++++++++++++++-
m4/manywarnings.m4 | 4 +++-
3 files changed, 31 insertions(+), 2 deletions(-)
diff --git a/ChangeLog b/ChangeLog
index 58c7306f15..a5b5544b85 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,12 @@
+2024-04-23 Paul Eggert <eggert@cs.ucla.edu>
+
+ manywarnings: update C warnings for GCC 14
+ Adjust for C programs compiled by GCC 14.
+ (A C++ expert still needs to look at manywarnings-c++.m4.)
+ * build-aux/gcc-warning.spec: Add warnings introduced in GCC 13.
+ * m4/manywarnings.m4 (gl_MANYWARN_ALL_GCC):
+ Add -Wflex-array-member-not-at-end, -Wmissing-variable-declarations.
+
2024-04-23 Bruno Haible <bruno@clisp.org>
Update HACKING.
diff --git a/build-aux/gcc-warning.spec b/build-aux/gcc-warning.spec
index 09350012ba..e12fbe776e 100644
--- a/build-aux/gcc-warning.spec
+++ b/build-aux/gcc-warning.spec
@@ -13,6 +13,7 @@
-Waliasing fortran
-Walign-commons fortran
-Waligned-new=[none|global|all] c++
+-Walloc-size enabled by -Wextra
-Walloc-size-larger-than=<bytes> defaults to PTRDIFF_MAX
-Walloc-zero Gnulib fixes this problem
-Walloca we like alloca in small doses
@@ -34,6 +35,7 @@
-Wanalyzer-file-leak enabled by -fanalyzer
-Wanalyzer-free-of-non-heap enabled by -fanalyzer
-Wanalyzer-imprecise-fp-arithmetic enabled by -fanalyzer
+-Wanalyzer-infinite-loop enabled by -fanalyzer
-Wanalyzer-infinite-recursion enabled by -fanalyzer
-Wanalyzer-jump-through-null enabled by -fanalyzer
-Wanalyzer-malloc-leak enabled by -fanalyzer
@@ -41,18 +43,21 @@
-Wanalyzer-null-argument enabled by -fanalyzer
-Wanalyzer-null-dereference enabled by -fanalyzer
-Wanalyzer-out-of-bounds enabled by -fanalyzer
+-Wanalyzer-overlapping-buffers enabled by -fanalyzer
-Wanalyzer-possible-null-argument enabled by -fanalyzer
-Wanalyzer-possible-null-dereference enabled by -fanalyzer
-Wanalyzer-putenv-of-auto-var enabled by -fanalyzer
-Wanalyzer-shift-count-negative enabled by -fanalyzer
-Wanalyzer-shift-count-overflow enabled by -fanalyzer
-Wanalyzer-stale-setjmp-buffer implied by -fanalyzer
+-Wanalyzer-symbol-too-complex warns about compiler not about program
-Wanalyzer-tainted-allocation-size FIXME requires -fanalyzer-checker=taint
-Wanalyzer-tainted-array-index FIXME requires -fanalyzer-checker=taint
-Wanalyzer-tainted-assertion FIXME requires -fanalyzer-checker=taint
-Wanalyzer-tainted-divisor FIXME requires -fanalyzer-checker=taint
-Wanalyzer-tainted-offset FIXME requires -fanalyzer-checker=taint
-Wanalyzer-tainted-size FIXME requires -fanalyzer-checker=taint
+-Wanalyzer-undefined-behavior-strtok enabled by -fanalyzer
-Wanalyzer-va-arg-type-mismatch enabled by -fanalyzer
-Wanalyzer-va-list-exhausted enabled by -fanalyzer
-Wanalyzer-va-list-leak enabled by -fanalyzer
@@ -93,11 +98,13 @@
-Wc++20-compat c++
-Wc++20-extensions c++
-Wc++23-extensions c++
+-Wc++26-extensions c++
-Wc++2a-compat c++
-Wc-binding-type fortran
--Wc11-c2x-compat c compatibility
+-Wc11-c23-compat c compatibility
-Wc90-c99-compat c compatibility
-Wc99-c11-compat c compatibility
+-Wcalloc-transposed-args enabled by -Wextra
-Wcannot-profile default
-Wcast-align enabled by -Wcast-align=strict
-Wcast-function-type enabled by -Wextra
@@ -115,10 +122,12 @@
-Wcomma-subscript c++ and objc++
-Wcomment enabled by -Wall
-Wcomments alias for -Wcomment
+-Wcompare-distinct-pointer-types default
-Wcompare-reals fortran
-Wcomplain-wrong-lang default
-Wconditionally-supported c++ and objc++
-Wconversion FIXME maybe? too much noise; encourages bad changes
+-Wcoverage-too-many-conditions default
-Wconversion-extra fortran
-Wconversion-null c++ and objc++
-Wcoverage-invalid-line-number default if --coverage
@@ -131,6 +140,7 @@
-Wdangling-pointer=<0,2> enabled by -Wall
-Wdangling-reference c++ and objc++
-Wdeclaration-after-statement needed only for pre-C99, so obsolete
+-Wdeclaration-missing-parameter-type default
-Wdelete-incomplete c++ and objc++
-Wdelete-non-virtual-dtor c++
-Wdeprecated default
@@ -146,6 +156,7 @@
-Wdiv-by-zero default
-Wduplicate-decl-specifier enabled by -Wall
-Weffc++ c++
+-Welaborated-enum-base default, c++11+
-Wempty-body enabled by -Wextra
-Wenum-compare enabled by -Wall
-Wenum-conversion enabled by -Wextra
@@ -174,6 +185,8 @@
-Wframe-larger-than=<byte-size> FIXME: choose something sane?
-Wfree-nonheap-object default
-Wfunction-elimination fortran
+-Wglobal-module default, c++ and objc++
+-Whardened default
-Whsa default
-Wif-not-aligned default
-Wignored-attributes default
@@ -217,6 +230,7 @@
-Wmisleading-indentation enabled by -Wall
-Wmismatched-dealloc default
-Wmismatched-new-delete default, c++ and objc++
+-Wmismatched-special-enum d
-Wmismatched-tags c++ and objc++
-Wmissing-attributes enabled by -Wall
-Wmissing-braces enabled by -Wall
@@ -252,6 +266,7 @@
-Wold-style-cast c++ and objc++
-Wold-style-declaration enabled by -Wextra
-Wopenacc-parallelism OpenACC
+-Wopenmp default
-Woverflow default
-Woverloaded-virtual c++
-Woverloaded-virtual=<0,2> c++
@@ -286,6 +301,7 @@
-Wreorder c++ and objc++
-Wrestrict enabled by -Wall
-Wreturn-local-addr default
+-Wreturn-mismatch default
-Wreturn-type enabled by -Wall
-Wscalar-storage-order default
-Wselector objc and objc++
@@ -322,6 +338,7 @@
-Wstringop-overread default
-Wstringop-truncation default
-Wsubobject-linkage c++ and objc++
+-Wsuggest-attribute=returns_nonnull https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114833
-Wsuggest-override c++ and objc++
-Wsurprising fortran
-Wswitch enabled by -Wall
@@ -334,6 +351,7 @@
-Wtabs fortran
-Wtarget-lifetime fortran
-Wtautological-compare enabled by -Wall
+-Wtemplate-id-cdtor default, c++ and objc++
-Wtemplates c++ and objc++
-Wterminate c++ and objc++
-Wtraditional obsolescent
diff --git a/m4/manywarnings.m4 b/m4/manywarnings.m4
index 4ba6bc9e3c..14bc5041ea 100644
--- a/m4/manywarnings.m4
+++ b/m4/manywarnings.m4
@@ -1,5 +1,5 @@
# manywarnings.m4
-# serial 25
+# serial 26
dnl Copyright (C) 2008-2024 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
@@ -111,6 +111,7 @@ AC_DEFUN([gl_MANYWARN_ALL_GCC(C)],
-Wduplicated-cond \
-Wextra \
-Wformat-signedness \
+ -Wflex-array-member-not-at-end \
-Winit-self \
-Winline \
-Winvalid-pch \
@@ -118,6 +119,7 @@ AC_DEFUN([gl_MANYWARN_ALL_GCC(C)],
-Wmissing-declarations \
-Wmissing-include-dirs \
-Wmissing-prototypes \
+ -Wmissing-variable-declarations \
-Wnested-externs \
-Wnull-dereference \
-Wold-style-definition \
--
2.44.0
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