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| author | Paul Eggert <eggert@cs.ucla.edu> | 2021-03-02 16:27:39 -0800 |
|---|---|---|
| committer | Paul Eggert <eggert@cs.ucla.edu> | 2021-03-02 16:28:40 -0800 |
| commit | 495dcf8d964e0b3a712f9345554a03d450851d8a (patch) | |
| tree | 9e57e880d6315fa73674fade4f1403fa8ebc4a5e /lib/mbtowc-lock.h | |
| parent | 92fb5eecee39b2b87bc140ffdafdfd9e82057911 (diff) | |
| download | gnulib-495dcf8d964e0b3a712f9345554a03d450851d8a.tar.gz | |
mbrtowc: port to AIX 7.1 with xlc 12.1
Fix a problem with locks when building GNU Tar (Savannah commit
55f2a0772e08b9febac3ac0de5cb048d4c60d2f5) on AIX 7.1 with IBM XL
C/C++ V12.1 using ‘./configure CC=xlc’. The link fails due to
missing definitions of pthread_mutex_lock and
pthread_mutex_unlock. GNU Tar uses unlocked-io and so
should not need to worry about multithreading or locks.
* lib/mbtowc-lock.h (mbtowc_with_lock) [USE_UNLOCKED_IO]:
Don’t bother with locks, since this app is single-threaded.
There may be similar linking problems with lib/nl_langinfo.c and
lib/setlocale_null.c but my GNU Tar build didn’t run into them, so
I left them alone for now.
Diffstat (limited to 'lib/mbtowc-lock.h')
| -rw-r--r-- | lib/mbtowc-lock.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/lib/mbtowc-lock.h b/lib/mbtowc-lock.h index 696b12c584..b7c5ba8a08 100644 --- a/lib/mbtowc-lock.h +++ b/lib/mbtowc-lock.h @@ -32,7 +32,15 @@ mbtowc_unlocked (wchar_t *pwc, const char *p, size_t m) /* Prohibit renaming this symbol. */ #undef gl_get_mbtowc_lock -#if defined _WIN32 && !defined __CYGWIN__ +#ifdef USE_UNLOCKED_IO + +static int +mbtowc_with_lock (wchar_t *pwc, const char *p, size_t m) +{ + return mbtowc_unlocked (pwc, p, m); +} + +#elif defined _WIN32 && !defined __CYGWIN__ extern __declspec(dllimport) CRITICAL_SECTION *gl_get_mbtowc_lock (void); |