[PATCH v5 3/3] Makefile: restrict -Wpedantic and -Wno-pedantic-ms-format better
DORMANTno replies
From: Carlo Marcelo Arenas Belón <hidden>
Date: 2021-09-29 03:19:59
Subsystem:
the rest · Maintainer:
Linus Torvalds
Revision v5 of 2 in this series.
Revisions (2)
- v4 [diff vs current]
- v5 current
6a8cbc41ba (developer: enable pedantic by default, 2021-09-03) enables pedantic mode in as many compilers as possible to help gather feedback on future tightening, so lets do so. -Wpedantic is missing in some really old gcc 4 versions so lets restrict it to gcc5 and clang4 (it does work in clang3 AFAIK, but it will be unlikely that a developer will use such an old compiler anyway). MinGW gcc is the only one which has -Wno-pedantic-ms-format, and while that is available also in older compilers, the Windows SDK provides gcc10 so lets aim for that. Note that in order to target the flag to only Windows, additional changes were needed in config.mak.uname to propagate the OS detection which also did some minor refactoring, but which is functionaly equivalent. Helped-by: Ævar Arnfjörð Bjarmason [off-list ref] Signed-off-by: Carlo Marcelo Arenas Belón <redacted> --- config.mak.dev | 7 ++++++- config.mak.uname | 6 +++++- 2 files changed, 11 insertions(+), 2 deletions(-)
diff --git a/config.mak.dev b/config.mak.dev
index cdf043c52b..7673fed114 100644
--- a/config.mak.dev
+++ b/config.mak.dev@@ -6,14 +6,19 @@ ifeq ($(filter no-error,$(DEVOPTS)),) DEVELOPER_CFLAGS += -Werror SPARSE_FLAGS += -Wsparse-error endif + DEVELOPER_CFLAGS += -Wall ifeq ($(filter no-pedantic,$(DEVOPTS)),) DEVELOPER_CFLAGS += -pedantic +ifneq (($or $(filter gcc5,$(COMPILER_FEATURES)),$(filter clang4,$(COMPILER_FEATURES))),) DEVELOPER_CFLAGS += -Wpedantic -ifneq ($(filter gcc5,$(COMPILER_FEATURES)),) +ifneq ($(filter gcc10,$(COMPILER_FEATURES)),) +ifeq ($(uname_S),MINGW) DEVELOPER_CFLAGS += -Wno-pedantic-ms-format endif endif +endif +endif DEVELOPER_CFLAGS += -Wdeclaration-after-statement DEVELOPER_CFLAGS += -Wformat-security DEVELOPER_CFLAGS += -Wold-style-definition
diff --git a/config.mak.uname b/config.mak.uname
index 76516aaa9a..2b178bad58 100644
--- a/config.mak.uname
+++ b/config.mak.uname@@ -11,6 +11,10 @@ uname_R := $(shell sh -c 'uname -r 2>/dev/null || echo not') uname_P := $(shell sh -c 'uname -p 2>/dev/null || echo not') uname_V := $(shell sh -c 'uname -v 2>/dev/null || echo not') +ifneq ($(findstring MINGW,$(uname_S)),) + uname_S := MINGW +endif + ifdef MSVC # avoid the MingW and Cygwin configuration sections uname_S := Windows
@@ -588,7 +592,7 @@ ifeq ($(uname_S),NONSTOP_KERNEL) SANE_TOOL_PATH = /usr/coreutils/bin:/usr/local/bin SHELL_PATH = /usr/coreutils/bin/bash endif -ifneq (,$(findstring MINGW,$(uname_S))) +ifeq ($(uname_S),MINGW) pathsep = ; HAVE_ALLOCA_H = YesPlease NO_PREAD = YesPlease
--
2.33.0.955.gee03ddbf0e