diff options
Diffstat (limited to 'man7/feature_test_macros.7')
| -rw-r--r-- | man7/feature_test_macros.7 | 34 |
1 files changed, 17 insertions, 17 deletions
diff --git a/man7/feature_test_macros.7 b/man7/feature_test_macros.7 index 85a42f7fed..1dc3ff639f 100644 --- a/man7/feature_test_macros.7 +++ b/man7/feature_test_macros.7 @@ -179,7 +179,7 @@ plus the XSI extension) and C99 definitions. .TP .B _XOPEN_SOURCE_EXTENDED If this macro is defined, and -.BR _XOPEN_SOURCE +.B _XOPEN_SOURCE is defined, then expose definitions corresponding to the XPG4v2 (SUSv1) UNIX extensions (UNIX 95). This macro is also implicitly defined if @@ -211,7 +211,7 @@ versus .BR lseek (), etc.). New programs should not employ this interface; instead -.IR _FILE_OFFSET_BITS=64 +.I _FILE_OFFSET_BITS=64 should be employed. .TP .B _FILE_OFFSET_BITS @@ -237,7 +237,7 @@ some situations where standards conflict, unless one or more of .BR _XOPEN_SOURCE , .BR _XOPEN_SOURCE_EXTENDED , or -.BR _GNU_SOURCE +.B _GNU_SOURCE is defined, in which case BSD definitions are disfavored. .TP .B _SVID_SOURCE @@ -261,11 +261,11 @@ Defining this macro (with any value) is equivalent to defining .BR _ISOC99_SOURCE , .BR _XOPEN_SOURCE_EXTENDED , .BR _POSIX_SOURCE , -.BR _POSIX_C_SOURCE +.B _POSIX_C_SOURCE with the value 200112L (199506L in glibc versions before 2.5), .\" 199309L in glibc versions before 2.1 and -.BR _XOPEN_SOURCE +.B _XOPEN_SOURCE with the value 600 (500 in glibc versions before 2.2). In addition, various GNU-specific extensions are also exposed. Where standards conflict, BSD definitions are disfavored. @@ -347,22 +347,22 @@ If any of .BR _XOPEN_SOURCE_EXTENDED , .BR _BSD_SOURCE , or -.BR _SVID_SOURCE +.B _SVID_SOURCE is explicitly defined, then .BR _BSD_SOURCE , and -.BR _SVID_SOURCE +.B _SVID_SOURCE are not defined by default. If -.BR _POSIX_SOURCE +.B _POSIX_SOURCE and -.BR _POSIX_C_SOURCE +.B _POSIX_C_SOURCE are not explicitly defined, and either -.BR __STRICT_ANSI__ +.B __STRICT_ANSI__ is not defined or -.BR _XOPEN_SOURCE +.B _XOPEN_SOURCE is defined with a value of 500 or more, then .RS 6 .IP * 3 @@ -375,18 +375,18 @@ is defined with one of the following values: .IP \(bu 3 2, if -.BR XOPEN_SOURCE +.B XOPEN_SOURCE is defined with a value less than 500; .IP \(bu 199506L, if -.BR XOPEN_SOURCE +.B XOPEN_SOURCE is defined with a value greater than or equal to 500 and less than 600; or .IP \(bu 200112L (199506L in glibc versions before 2.4), if -.BR XOPEN_SOURCE +.B XOPEN_SOURCE is undefined, or is defined with a value greater than or equal to 600. .RE @@ -399,10 +399,10 @@ POSIX.1 specifies .BR _POSIX_SOURCE , and .BR _XOPEN_SOURCE . -.BR _XOPEN_SOURCE_EXTENDED +.B _XOPEN_SOURCE_EXTENDED was specified by XPG4v2 (aka SUSv1). -.BR _FILE_OFFSET_BITS +.B _FILE_OFFSET_BITS is not specified by any standard, but is employed on some other implementations. @@ -413,7 +413,7 @@ but is employed on some other implementations. .BR _FORTIFY_SOURCE , .BR _REENTRANT , and -.BR _THREAD_SAFE +.B _THREAD_SAFE are Linux (glibc) specific. .SH NOTES .I <features.h> |