On Tue, Aug 31, 2021 at 04:54:52PM -0700, Carlo Arenas wrote:
> On Tue, Aug 31, 2021 at 1:57 PM Ævar Arnfjörð Bjarmason
> <avarab@xxxxxxxxx> wrote:
> >
> > On the other hand maybe we should just remove
> > USE_PARENS_AROUND_GETTEXT_N entirely, i.e. always use the parens.
>
> that would break pedantic in all versions of gcc since it is a GNU
> extension and is not valid in any C standard.
> (unlike the ones we are using with weather balloons and that are valid C99)
I think Ævar might have mis-spoke there. It would make sense to get rid
of the feature and _never_ use parens, which is always valid C (and does
not tickle pedantic, but also does not catch any accidental string
concatenation).
That actually seems quite reasonable to me.
Something like this, I guess?
diff --git a/Makefile b/Makefile
index d1feab008f..4936e234bc 100644
--- a/Makefile
+++ b/Makefile
@@ -409,15 +409,6 @@ all::
# Define NEEDS_LIBRT if your platform requires linking with librt (glibc version
# before 2.17) for clock_gettime and CLOCK_MONOTONIC.
#
-# Define USE_PARENS_AROUND_GETTEXT_N to "yes" if your compiler happily
-# compiles the following initialization:
-#
-# static const char s[] = ("FOO");
-#
-# and define it to "no" if you need to remove the parentheses () around the
-# constant. The default is "auto", which means to use parentheses if your
-# compiler is detected to support it.
-#
# Define HAVE_BSD_SYSCTL if your platform has a BSD-compatible sysctl function.
#
# Define HAVE_GETDELIM if your system has the getdelim() function.
@@ -497,8 +488,7 @@ all::
#
# pedantic:
#
-# Enable -pedantic compilation. This also disables
-# USE_PARENS_AROUND_GETTEXT_N to produce only relevant warnings.
+# Enable -pedantic compilation.
GIT-VERSION-FILE: FORCE
@$(SHELL_PATH) ./GIT-VERSION-GEN
@@ -1347,14 +1337,6 @@ ifneq (,$(SOCKLEN_T))
BASIC_CFLAGS += -Dsocklen_t=$(SOCKLEN_T)
endif
-ifeq (yes,$(USE_PARENS_AROUND_GETTEXT_N))
- BASIC_CFLAGS += -DUSE_PARENS_AROUND_GETTEXT_N=1
-else
-ifeq (no,$(USE_PARENS_AROUND_GETTEXT_N))
- BASIC_CFLAGS += -DUSE_PARENS_AROUND_GETTEXT_N=0
-endif
-endif
-
ifeq ($(uname_S),Darwin)
ifndef NO_FINK
ifeq ($(shell test -d /sw/lib && echo y),y)
diff --git a/config.mak.dev b/config.mak.dev
index 022fb58218..41d6345bc0 100644
--- a/config.mak.dev
+++ b/config.mak.dev
@@ -4,8 +4,6 @@ SPARSE_FLAGS += -Wsparse-error
endif
ifneq ($(filter pedantic,$(DEVOPTS)),)
DEVELOPER_CFLAGS += -pedantic
-# don't warn for each N_ use
-DEVELOPER_CFLAGS += -DUSE_PARENS_AROUND_GETTEXT_N=0
endif
DEVELOPER_CFLAGS += -Wall
DEVELOPER_CFLAGS += -Wdeclaration-after-statement
diff --git a/gettext.h b/gettext.h
index c8b34fd612..d209911ebb 100644
--- a/gettext.h
+++ b/gettext.h
@@ -55,31 +55,7 @@ const char *Q_(const char *msgid, const char *plu, unsigned long n)
}
/* Mark msgid for translation but do not translate it. */
-#if !USE_PARENS_AROUND_GETTEXT_N
#define N_(msgid) msgid
-#else
-/*
- * Strictly speaking, this will lead to invalid C when
- * used this way:
- * static const char s[] = N_("FOO");
- * which will expand to
- * static const char s[] = ("FOO");
- * and in valid C, the initializer on the right hand side must
- * be without the parentheses. But many compilers do accept it
- * as a language extension and it will allow us to catch mistakes
- * like:
- * static const char *msgs[] = {
- * N_("one")
- * N_("two"),
- * N_("three"),
- * NULL
- * };
- * (notice the missing comma on one of the lines) by forcing
- * a compilation error, because parenthesised ("one") ("two")
- * will not get silently turned into ("onetwo").
- */
-#define N_(msgid) (msgid)
-#endif
const char *get_preferred_languages(void);
int is_utf8_locale(void);
diff --git a/git-compat-util.h b/git-compat-util.h
index b46605300a..ddc65ff61d 100644
--- a/git-compat-util.h
+++ b/git-compat-util.h
@@ -1253,10 +1253,6 @@ int warn_on_fopen_errors(const char *path);
*/
int open_nofollow(const char *path, int flags);
-#if !defined(USE_PARENS_AROUND_GETTEXT_N) && defined(__GNUC__)
-#define USE_PARENS_AROUND_GETTEXT_N 1
-#endif
-
#ifndef SHELL_PATH
# define SHELL_PATH "/bin/sh"
#endif
