aboutsummaryrefslogtreecommitdiffstats
diff options
authorMark Harris <mark.hsj@gmail.com>2026-01-27 22:46:24 -0800
committerAlejandro Colomar <alx@kernel.org>2026-02-10 23:48:31 +0100
commit89bcb3ffb60bdc2ec62f98a46cf311ae2fadf64b (patch)
tree08e7090d9d3bfb179326525667502e3fb244feab
parent9e57246ed5ea19060f61e1c17ec1d465457eaf73 (diff)
downloadman-pages-89bcb3ffb60bdc2ec62f98a46cf311ae2fadf64b.tar.gz
man/man7/feature_test_macros.7: Drop _ISOC9X_SOURCE
_ISOC9X_SOURCE was a temporary macro for use before the final name of the standard was known. It became obsolete when _ISOC99_SOURCE was added in glibc 2.1.3 (1999), and has not been recognized since _ISOC11_SOURCE was added in glibc 2.16 (2012).[1] [1] <https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=d78099052b6b> Signed-off-by: Mark Harris <mark.hsj@gmail.com> Message-ID: <bf785830f727b9fd7a40001b861b743f88fe2a7a.1769581651.git.mark.hsj@gmail.com> Signed-off-by: Alejandro Colomar <alx@kernel.org>
-rw-r--r--man/man7/feature_test_macros.711
1 files changed, 1 insertions, 10 deletions
diff --git a/man/man7/feature_test_macros.7 b/man/man7/feature_test_macros.7
index ddb66465e2..469e97310a 100644
--- a/man/man7/feature_test_macros.7
+++ b/man/man7/feature_test_macros.7
@@ -334,16 +334,7 @@ SYNOPSIS in man pages.
.TP
.BR _ISOC99_SOURCE " (since glibc 2.1.3)"
Exposes declarations consistent with the ISO C99 standard.
-.IP
-Earlier glibc 2.1.x versions recognized an equivalent macro named
-.B _ISOC9X_SOURCE
-(because the C99 standard had not then been finalized).
-Although the use of this macro is obsolete, glibc continues
-to recognize it for backward compatibility.
-.IP
-Defining
-.B _ISOC99_SOURCE
-also exposes ISO C (1990) Amendment 1 ("C95") definitions.
+Defining this macro also exposes ISO C (1990) Amendment 1 ("C95") definitions.
(The primary change in C95 was support for international character sets.)
.IP
Invoking the C compiler with the option