ptsname_r: Work around bug on Android 4.3. * m4/ptsname_r.m4 (gl_FUNC_PTSNAME_R): Define HAVE_ESSENTIALLY_WORKING_PTSNAME_R. Test whether the return value is correct. * lib/ptsname_r.c (__ptsname_r): If HAVE_ESSENTIALLY_WORKING_PTSNAME_R is defined, just fix the return value. * doc/glibc-functions/ptsname_r.texi: Mention the Android bug. Reword: The behaviour of musl libc is nothing to be "fixed", since it is compliant with the next POSIX standard.

Description:
Finds the most significant bit in an 'unsigned long'.

Files:
lib/integer_length.h
lib/integer_length_l.c
m4/longlong.m4

Depends-on:
integer_length

configure.ac:
AC_REQUIRE([AC_TYPE_UNSIGNED_LONG_LONG_INT])

Makefile.am:
lib_SOURCES += integer_length_l.c

Include:
"integer_length.h"

License:
LGPLv2+

Maintainer:
all