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* terminfo, termcap: Avoid wrong configure result with clang ≥ 15.Bruno Haible2023-02-122-6/+6
| | | | | | | | | | | clang 15 reports an error for -Wint-conversion by default. Reported by Sam James <sam@gentoo.org> in <https://savannah.gnu.org/bugs/?63793>. * m4/terminfo.m4 (gl_TERMINFO_BODY): Avoid a -Wint-conversion warning when testing for tparam and tparm. * m4/termcap.m4 (gl_TERMCAP_BODY): Likewise.
* error-h: Make less fragile.Bruno Haible2023-02-111-1/+9
| | | | | | | | | * lib/error.in.h: Use #include_next if the system has an <error.h>. Use a split double-inclusion guard. * m4/error_h.m4 (gl_ERROR_H): Invoke gl_CHECK_NEXT_HEADERS. Set HAVE_ERROR_H. * modules/error-h (Makefile.am): Substitute GUARD_PREFIX, HAVE_ERROR_H, INCLUDE_NEXT, PRAGMA_SYSTEM_HEADER, NEXT_ERROR_H.
* Fix code duplication in last commit.Bruno Haible2023-02-101-158/+117
| | | | | | | | | | * m4/gnulib-common.m4 (gl_CHECK_FUNCS_DEFAULT_CASE, gl_CHECK_FUNCS_CASE_FOR_ANDROID, gl_CHECK_FUNCS_CASE_FOR_MACOS, gl_CHECK_FUNCS_SET_RESULTS): New macros, extracted from gl_CHECK_FUNCS_ANDROID, gl_CHECK_FUNCS_MACOS, gl_CHECK_FUNCS_ANDROID_MACOS. (gl_CHECK_FUNCS_ANDROID, gl_CHECK_FUNCS_MACOS, gl_CHECK_FUNCS_ANDROID_MACOS): Use them.
* mkfifoat: Fix crash on macOS 12.Bruno Haible2023-02-102-4/+200
| | | | | | | * m4/gnulib-common.m4 (gl_PREPARE_CHECK_FUNCS_MACOS, gl_CHECK_FUNCS_MACOS, gl_CHECK_FUNCS_ANDROID_MACOS): New macros. * m4/mkfifoat.m4 (gl_FUNC_MKFIFOAT): Test for mknodat and mkfifoat using gl_CHECK_FUNCS_ANDROID_MACOS instead of gl_CHECK_FUNCS_ANDROID.
* nullptr: work around Apple clang 14 issuePaul Eggert2023-02-091-10/+20
| | | | | | | | | Problem reported by Bruno Haible in: https://lists.gnu.org/r/bug-gnulib/2023-02/msg00098.html * doc/gnulib.texi (nullptr): Document limitations better. * m4/nullptr.m4 (gl_NULLPTR): Check for incompatibility of macOS clang 14.0.0 (clang-1400.0.29.202), where <stddef.h> defines a non-working nullptr macro.
* Fix compilation errors in C++ mode on macOS 12.5.Bruno Haible2023-02-091-2/+2
| | | | | | * m4/gnulib-common.m4 (gl_COMMON_BODY): Don't define _GL_ATTRIBUTE_MAYBE_UNUSED to [[__maybe_unused__]] if the compiler is an Apple variant of clang.
* limits-h: Work around a clang 15 bug.Bruno Haible2023-02-091-0/+1
| | | | | * m4/limits-h.m4 (gl_LIMITS_H): Test also for BOOL_MAX. * doc/posix-headers/limits.texi: Mention the clang bug.
* assert-h: Fix test failure on IRIX 6.5.Bruno Haible2023-02-081-4/+10
| | | | | * m4/assert_h.m4 (gl_ASSERT_H): Ensure that on IRIX, including <assert.h> after <config.h> actually defines the assert macro.
* nullptr: test for compilers at autoconf-timePaul Eggert2023-02-071-9/+19
| | | | | | | * m4/nullptr.m4 (gl_NULLPTR): Test for C and C++ compiler usage at autoconf-time. This should work better than testing at configure-time. Also, push and pop languages so we check the proper compiler.
* nullptr: test for C++ nullptr at configure-timePaul Eggert2023-02-071-24/+24
| | | | | | * m4/nullptr.m4 (gl_NULLPTR): Test for C++ support for nullptr at configure-time, as we already do for C support. This should be more reliable than maintaining #ifdefs by hand.
* nullptr: rename from c-nullptrPaul Eggert2023-02-071-1/+1
| | | | | | | | | | * NEWS, doc/gnulib.texi: Mention this. * m4/nullptr.m4: Rename from m4/c-nullptr.m4. (gl_NULLPTR): Rename from gl_C_NULLPTR. * modules/nullptr: Rename from modules/nullptr. * modules/nullptr-c++-tests: Rename from modules/c-nullptr-c++-tests. * modules/nullptr-tests: Rename from modules/c-nullptr-tests. All uses changed.
* setlocale-null: Don't use a lock in Cygwin >= 3.4.6.Bruno Haible2023-02-061-3/+17
| | | | | | | | | Road paved by Corinna Vinschen <vinschen@redhat.com>. * m4/setlocale_null.m4 (gl_FUNC_SETLOCALE_NULL): Assume that setlocale (LC_ALL, NULL) is multithread-safe in Cygwin >= 3.4.6. * lib/setlocale_null.c: Update comments. * tests/test-setlocale_null-mt-all.c: Likewise.
* c-nullptr: Fix conflict with libstdc++ in GCC >= 11.Bruno Haible2023-02-061-6/+18
| | | | | | | | | Reported by Bjarni Ingi Gislason <bjarniig@simnet.is> in <https://lists.gnu.org/archive/html/bug-gnulib/2023-02/msg00030.html>. * m4/c-nullptr.m4 (gl_C_NULLPTR): Don't define nullptr if it is already defined. In C++ mode, ignore the result of the configure test and don't define it when we know that the C++ compiler already supports it.
* c-nullptr: new modulePaul Eggert2023-02-051-0/+30
| | | | | | * doc/gnulib.texi (nullptr): New section. * doc/posix-headers/stddef.texi: Document lack of nullptr_t. * m4/c-nullptr.m4, modules/c-nullptr: New files.
* Clarify _GL_ATTRIBUTE_NODISCARD code.Bruno Haible2023-01-281-1/+4
| | | | | | | Reported by Paul Eggert. * m4/gnulib-common.m4 (gl_COMMON_BODY): Add comment regarding _GL_ATTRIBUTE_NODISCARD definition.
* Avoid clang warnings regarding [[__nodiscard__]].Bruno Haible2023-01-281-2/+8
| | | | | | * m4/gnulib-common.m4 (gl_COMMON_BODY): For clang, in C++ mode, ignore the __has_c_attribute value and define _GL_ATTRIBUTE_NODISCARD to __attribute__ ((__warn_unused_result__)), not [[__nodiscard__]].
* Avoid clang warnings regarding [[__maybe_unused__]].Bruno Haible2023-01-281-3/+9
| | | | | | | * m4/gnulib-common.m4 (gl_COMMON_BODY): For clang versions ≥ 6, < 10, in C++ mode, ignore the __has_c_attribute value and define _GL_ATTRIBUTE_MAYBE_UNUSED to __attribute__ ((__unused__)), not [[__maybe_unused__]].
* alignasof: Ensure a correct _Alignof (regression 2023-01-15).Bruno Haible2023-01-281-25/+30
| | | | | * m4/stdalign.m4 (gl_ALIGNASOF): Apply the workaround for wrong _Alignof in GCC < 4.9 and clang < 8.0.0 also when the system has <stdalign.h>.
* stdalign: Ensure alignof is defined on FreeBSD (regression 2023-01-15).Bruno Haible2023-01-281-5/+13
| | | | | | | | | * lib/stdalign.in.h: Include the system's <stdalign.h> when it exists. * m4/stdalign.m4 (gl_ALIGNASOF): Invoke gl_CHECK_NEXT_HEADERS. Set HAVE_STDALIGN_H. * modules/stdalign (Makefile.am): Substitute GUARD_PREFIX, HAVE_STDALIGN_H, INCLUDE_NEXT, PRAGMA_SYSTEM_HEADER, PRAGMA_COLUMNS, NEXT_STDALIGN_H.
* stddef: Fix test-stddef compilation error on FreeBSD 12/x86.Bruno Haible2023-01-271-2/+9
| | | | | * m4/stddef_h.m4 (gl_STDDEF_H): When testing for good max_align_t, use an ISO C compliant definition of _Alignof.
* Keep config.h idempotent.Bruno Haible2023-01-251-129/+181
| | | | | | | | | | | | | | | * m4/gnulib-common.m4 (gl_COMMON_BODY): Add double-inclusion guards to the definitions of the macros _GL_ATTRIBUTE_ALLOC_SIZE, _GL_ATTRIBUTE_ALWAYS_INLINE, _GL_ATTRIBUTE_ARTIFICIAL, _GL_ATTRIBUTE_COLD, _GL_ATTRIBUTE_CONST, _GL_ATTRIBUTE_DEALLOC, _GL_ATTRIBUTE_DEPRECATED, _GL_ATTRIBUTE_ERROR, _GL_ATTRIBUTE_WARNING, _GL_ATTRIBUTE_EXTERNALLY_VISIBLE, _GL_ATTRIBUTE_FALLTHROUGH, _GL_ATTRIBUTE_FORMAT, _GL_ATTRIBUTE_LEAF, _GL_ATTRIBUTE_MALLOC, _GL_ATTRIBUTE_MAY_ALIAS, _GL_ATTRIBUTE_MAYBE_UNUSED, _GL_ATTRIBUTE_NODISCARD, _GL_ATTRIBUTE_NOINLINE, _GL_ATTRIBUTE_NONNULL, _GL_ATTRIBUTE_NONSTRING, _GL_ATTRIBUTE_NOTHROW, _GL_ATTRIBUTE_PACKED, _GL_ATTRIBUTE_PURE, _GL_ATTRIBUTE_RETURNS_NONNULL, _GL_ATTRIBUTE_SENTINEL, _GL_ATTRIBUTE_UNUSED, _GL_UNUSED_LABEL.
* threadlib: Fix support for Solaris 9 and older.Nick Bowler2023-01-251-1/+3
| | | | | * m4/threadlib.m4 (gl_PTHREADLIB_BODY): Allow case patterns to survive m4 processing by using changequote.
* alignasof, stdalign: Fix a compilation error on FreeBSD 12.0.Bruno Haible2023-01-241-2/+6
| | | | | | * m4/stdalign.m4 (gl_ALIGNASOF): In C mode, prefer __builtin_offsetof over offsetof when possible, since __builtin_offsetof works also when <stddef.h> has not been fully included yet.
* Resolve conflicts for functions introduced in Android API level 29.Bruno Haible2023-01-221-1/+4
| | | | | | | * m4/reallocarray.m4 (gl_FUNC_REALLOCARRAY): Conditionally set REPLACE_REALLOCARRAY. * lib/stdlib.in.h (reallocarray): Disable _GL_CXXALIASWARN invocation on non-glibc systems.
* Resolve conflicts for functions introduced in Android API level 29.Bruno Haible2023-01-222-2/+7
| | | | | | | | | | | * lib/stdlib.in.h (getloadavg): Consider REPLACE_GETLOADAVG. Disable _GL_CXXALIASWARN invocation on non-glibc systems. * m4/stdlib_h.m4 (gl_STDLIB_H_DEFAULTS): Initialize REPLACE_GETLOADAVG. * modules/stdlib (Makefile.am): Substitute REPLACE_GETLOADAVG. * m4/getloadavg.m4 (gl_GETLOADAVG): Conditionally set REPLACE_GETLOADAVG. * modules/getloadavg (Depends-on, configure.ac): Consider REPLACE_GETLOADAVG.
* Resolve conflicts for functions introduced in Android API level 29.Bruno Haible2023-01-223-13/+30
| | | | | | | | | | | | | * lib/time.in.h (timespec_get): Consider REPLACE_TIMESPEC_GET. Disable _GL_CXXALIASWARN invocation on non-glibc systems. * m4/time_h.m4 (gl_TIME_H_DEFAULTS): Initialize REPLACE_TIMESPEC_GET. * modules/time (Makefile.am): Substitute REPLACE_TIMESPEC_GET. * m4/gettime.m4 (gl_CHECK_FUNC_TIMESPEC_GET): Set also gl_cv_onwards_func_timespec_get. * m4/timespec_get.m4 (gl_FUNC_TIMESPEC_GET): Conditionally set REPLACE_TIMESPEC_GET. * modules/timespec_get (Depends-on, configure.ac): Consider REPLACE_TIMESPEC_GET.
* Resolve conflicts for functions introduced in Android API level 28.Bruno Haible2023-01-222-2/+8
| | | | | | | * m4/aligned_alloc.m4 (gl_FUNC_ALIGNED_ALLOC): Conditionally set REPLACE_ALIGNED_ALLOC. * m4/getrandom.m4 (gl_FUNC_GETRANDOM): Conditionally set REPLACE_GETRANDOM.
* Resolve conflicts for functions introduced in Android API level 28.Bruno Haible2023-01-221-1/+4
| | | | | | | * m4/getlogin_r.m4 (gl_FUNC_GETLOGIN_R): Conditionally set REPLACE_GETLOGIN_R. * lib/unistd.in.h (getlogin_r): Disable _GL_CXXALIASWARN invocation on non-glibc systems.
* Resolve conflicts for functions introduced in Android API level 28.Bruno Haible2023-01-221-1/+4
| | | | | | | | | | | | | | | * m4/spawn_h.m4 (gl_HAVE_POSIX_SPAWN): Conditionally set REPLACE_POSIX_SPAWN. * lib/spawn.in.h: Adapt logic for defining the POSIX_SPAWN_* constants. (posix_spawn, posix_spawnp, posix_spawnattr_init, posix_spawnattr_destroy, posix_spawnattr_getsigdefault, posix_spawnattr_setsigdefault, posix_spawnattr_getsigmask, posix_spawnattr_setsigmask, posix_spawnattr_getflags, posix_spawnattr_setflags, posix_spawnattr_getpgroup, posix_spawnattr_setpgroup, posix_spawn_file_actions_init, posix_spawn_file_actions_destroy, posix_spawn_file_actions_addchdir, posix_spawn_file_actions_addfchdir): Disable _GL_CXXALIASWARN invocation on non-glibc systems.
* Resolve conflicts for functions introduced in Android API level 28.Bruno Haible2023-01-221-1/+4
| | | | | | * m4/glob.m4 (gl_GLOB): Conditionally set REPLACE_GLOB. * lib/glob.in.h (glob): Disable _GL_CXXALIASWARN invocation on non-glibc systems.
* Resolve conflicts for functions introduced in Android API level 28.Bruno Haible2023-01-222-2/+6
| | | | | | | | | | | * lib/unistd.in.h (getentropy): Consider REPLACE_GETENTROPY. Disable _GL_CXXALIASWARN invocation on non-glibc systems. * m4/unistd_h.m4 (gl_UNISTD_H_DEFAULTS): Initialize REPLACE_GETENTROPY. * modules/unistd (Makefile.am): Substitute REPLACE_GETENTROPY. * m4/getentropy.m4 (gl_FUNC_GETENTROPY): Conditionally set REPLACE_GETENTROPY. * modules/getentropy (Depends-on, configure.ac): Consider REPLACE_GETENTROPY.
* Resolve conflicts for functions introduced in Android API level 26.Bruno Haible2023-01-221-4/+8
| | | | | | * m4/getdomainname.m4 (gl_FUNC_GETDOMAINNAME): Test for getdomainname using gl_CHECK_FUNCS_ANDROID instead of AC_CHECK_FUNCS. Conditionally set REPLACE_GETSUBOPT.
* Resolve conflicts for functions introduced in Android API level 26.Bruno Haible2023-01-221-1/+4
| | | | | | | * m4/nl_langinfo.m4 (gl_FUNC_NL_LANGINFO): Conditionally set REPLACE_NL_LANGINFO. * lib/langinfo.in.h (nl_langinfo): Disable _GL_CXXALIASWARN invocation on non-glibc systems.
* Resolve conflicts for functions introduced in Android API level 26.Bruno Haible2023-01-222-2/+6
| | | | | | | | | | | * lib/stdlib.in.h (getsubopt): Consider REPLACE_GETSUBOPT. Disable _GL_CXXALIASWARN invocation on non-glibc systems. * m4/stdlib_h.m4 (gl_STDLIB_H_DEFAULTS): Initialize REPLACE_GETSUBOPT. * modules/stdlib (Makefile.am): Substitute REPLACE_GETSUBOPT. * m4/getsubopt.m4 (gl_FUNC_GETSUBOPT): Conditionally set REPLACE_GETSUBOPT. * modules/getsubopt (Depends-on, configure.ac): Consider REPLACE_GETSUBOPT.
* Resolve conflicts for functions introduced in Android API level 24.Bruno Haible2023-01-221-1/+4
| | | | | * m4/strchrnul.m4 (gl_FUNC_STRCHRNUL): Conditionally set REPLACE_STRCHRNUL.
* Resolve conflicts for functions introduced in Android API level 23.Bruno Haible2023-01-221-1/+4
| | | | | | | * m4/login_tty.m4 (gl_FUNC_LOGIN_TTY): Conditionally set REPLACE_LOGIN_TTY. * lib/utmp.in.h (login_tty): Disable _GL_CXXALIASWARN invocation on non-glibc systems.
* Resolve conflicts for functions introduced in Android API level 23.Bruno Haible2023-01-221-1/+4
| | | | | | * m4/mkfifoat.m4 (gl_FUNC_MKFIFOAT): Conditionally set REPLACE_MKFIFOAT. * lib/sys_stat.in.h (mkfifoat): Disable _GL_CXXALIASWARN invocation on non-glibc systems.
* Resolve conflicts for functions introduced in Android API level 23.Bruno Haible2023-01-221-1/+5
| | | | | | | * m4/strerror_r.m4 (gl_FUNC_STRERROR_R_WORKS): Conditionally set REPLACE_STRERROR_R. * lib/string.in.h (strerror_r): Disable _GL_CXXALIASWARN invocation on non-glibc systems.
* Resolve conflicts for functions introduced in Android API level 23.Bruno Haible2023-01-221-2/+6
| | | | | | * m4/error_h.m4 (gl_ERROR_H): Conditionally set REPLACE_ERROR. * lib/error.in.h (error): Disable _GL_CXXALIASWARN invocation on non-glibc systems.
* Resolve conflicts for functions introduced in Android API level 23.Bruno Haible2023-01-222-2/+6
| | | | | | | | | * lib/wchar.in.h (wmempcpy): Consider REPLACE_WMEMPCPY. * m4/wchar_h.m4 (gl_WCHAR_H_DEFAULTS): Initialize REPLACE_WMEMPCPY. * modules/wchar (Makefile.am): Substitute REPLACE_WMEMPCPY. * m4/wmempcpy.m4 (gl_FUNC_WMEMPCPY): Conditionally set REPLACE_WMEMPCPY. * modules/wmempcpy (configure.ac): Consider REPLACE_WMEMPCPY.
* Resolve conflicts for functions introduced in Android API level 23.Bruno Haible2023-01-222-2/+6
| | | | | | | | | | | * lib/unistd.in.h (sethostname): Consider REPLACE_SETHOSTNAME. Disable _GL_CXXALIASWARN invocation on non-glibc systems. * m4/unistd_h.m4 (gl_UNISTD_H_DEFAULTS): Initialize REPLACE_SETHOSTNAME. * modules/unistd (Makefile.am): Substitute REPLACE_SETHOSTNAME. * m4/sethostname.m4 (gl_FUNC_SETHOSTNAME): Conditionally set REPLACE_SETHOSTNAME. * modules/sethostname (Depends-on, configure.ac): Consider REPLACE_SETHOSTNAME.
* Resolve conflicts for functions introduced in Android API level 23.Bruno Haible2023-01-222-2/+6
| | | | | | | | | * lib/string.in.h (mempcpy): Consider REPLACE_MEMPCPY. Disable _GL_CXXALIASWARN invocation on non-glibc systems. * m4/string_h.m4 (gl_STRING_H_DEFAULTS): Initialize REPLACE_MEMPCPY. * modules/string (Makefile.am): Substitute REPLACE_MEMPCPY. * m4/mempcpy.m4 (gl_FUNC_STPCPY): Conditionally set REPLACE_MEMPCPY. * modules/mempcpy (configure.ac): Consider REPLACE_MEMPCPY.
* Resolve conflicts for functions introduced in Android API level 23.Bruno Haible2023-01-223-3/+11
| | | | | | | | | | | | | | | | | | * lib/stdlib.in.h (mkostemp): Consider REPLACE_MKOSTEMP. Disable _GL_CXXALIASWARN invocation on non-glibc systems. (mkostemps): Consider REPLACE_MKOSTEMPS. Disable _GL_CXXALIASWARN invocation on non-glibc systems. * m4/stdlib_h.m4 (gl_STDLIB_H_DEFAULTS): Initialize REPLACE_MKOSTEMP, REPLACE_MKOSTEMPS. * modules/stdlib (Makefile.am): Substitute REPLACE_MKOSTEMP, REPLACE_MKOSTEMPS. * m4/mkostemp.m4 (gl_FUNC_MKOSTEMP): Conditionally set REPLACE_MKOSTEMP. * modules/mkostemp (Depends-on, configure.ac): Consider REPLACE_MKOSTEMP. * m4/mkostemps.m4 (gl_FUNC_MKOSTEMPS): Conditionally set REPLACE_MKOSTEMPS. * modules/mkostemps (Depends-on, configure.ac): Consider REPLACE_MKOSTEMPS.
* Resolve conflicts for functions introduced in Android API level 21.Bruno Haible2023-01-225-9/+27
| | | | | | | | | | | * m4/fts.m4 (gl_FUNC_FTS_CORE): Use rpl_* symbols also when the system will have fts_open in a future version. * m4/iswblank.m4 (gl_FUNC_ISWBLANK): Conditionally set REPLACE_ISWBLANK. * m4/mbtowc.m4 (gl_FUNC_MBTOWC): Conditionally set REPLACE_MBTOWC. * m4/vdprintf.m4 (gl_REPLACE_VDPRINTF): Conditionally set REPLACE_VDPRINTF. * m4/wcsnrtombs.m4 (gl_FUNC_WCSNRTOMBS): Conditionally set REPLACE_WCSNRTOMBS.
* Resolve conflicts for functions introduced in Android API level 21.Bruno Haible2023-01-221-1/+4
| | | | | | | * m4/mbsnrtowcs.m4 (gl_FUNC_MBSNRTOWCS): Conditionally set REPLACE_MBSNRTOWCS. * lib/wchar.in.h (mbsnrtowcs): Disable _GL_CXXALIASWARN invocation on non-glibc systems.
* Resolve conflicts for functions introduced in Android API level 21.Bruno Haible2023-01-225-8/+20
| | | | | | | | | | | | * m4/execvpe.m4 (gl_FUNC_EXECVPE): Conditionally set REPLACE_EXECVPE. * m4/linkat.m4 (gl_FUNC_LINKAT): Conditionally set REPLACE_LINKAT. * m4/readlinkat.m4 (gl_FUNC_READLINKAT): Conditionally set REPLACE_READLINKAT. * m4/symlinkat.m4 (gl_FUNC_SYMLINKAT): Conditionally set REPLACE_SYMLINKAT. * m4/truncate.m4 (gl_FUNC_TRUNCATE): Conditionally set REPLACE_TRUNCATE. * lib/unistd.in.h (execvpe, linkat, readlinkat, symlinkat, truncate): Disable _GL_CXXALIASWARN invocation on non-glibc systems.
* Resolve conflicts for functions introduced in Android API level 21.Bruno Haible2023-01-221-1/+4
| | | | | | * m4/mkfifoat.m4 (gl_FUNC_MKFIFOAT): Conditionally set REPLACE_MKNODAT. * lib/sys_stat.in.h (mknodat): Disable _GL_CXXALIASWARN invocation on non-glibc systems.
* Resolve conflicts for functions introduced in Android API level 21.Bruno Haible2023-01-221-1/+4
| | | | | | * m4/stpncpy.m4 (gl_FUNC_STPNCPY): Conditionally set REPLACE_STPNCPY. * lib/string.in.h (stpncpy): Disable _GL_CXXALIASWARN invocation on non-glibc systems.
* Resolve conflicts for functions introduced in Android API level 21.Bruno Haible2023-01-221-13/+23
| | | | | | | * m4/random.m4 (gl_FUNC_RANDOM): Conditionally set REPLACE_INITSTATE, REPLACE_SETSTATE. * lib/stdlib.in.h (initstate, setstate): Disable _GL_CXXALIASWARN invocation on non-glibc systems.
* Resolve conflicts for functions introduced in Android API level 21.Bruno Haible2023-01-221-2/+6
| | | | | | * m4/dprintf.m4 (gl_REPLACE_DPRINTF): Conditionally set REPLACE_DPRINTF. * lib/stdio.in.h (dprintf): Disable _GL_CXXALIASWARN invocation on non-glibc systems.
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