md5, sha1, sha256, sha512: add gl_SET_CRYPTO_CHECK_DEFAULT

[gnulib.git] / doc / posix-headers / math.texi

diff --git a/doc/posix-headers/math.texi b/doc/posix-headers/math.texi
index dde9cd0..e640663 100644 (file)
--- a/doc/posix-headers/math.texi
+++ b/doc/posix-headers/math.texi
@@ -1,14 +1,48 @@
 @node math.h
 @section @file{math.h}
 
-POSIX specification: @url{http://www.opengroup.org/susv3xbd/math.h.html}
+POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/basedefs/math.h.html}
 
 Gnulib module: math
 
 Portability problems fixed by Gnulib:
 @itemize
+@item
+The conversion from @code{int} to @code{long double} in incorrect on some
+platforms:
+glibc 2.7 on Linux/SPARC64.
+
+@item
+The macro @code{NAN} is not defined on some platforms:
+OpenBSD 4.0, AIX 5.1, IRIX 6.5, OSF/1 5.1.
+
+@item
+The macro @code{NAN} is not exposed outside of C99 compilation on some
+platforms:
+glibc.
+
+@item
+The macros @code{NAN} and @code{HUGE_VAL} expand to a function address
+rather than a floating point constant on some platforms:
+Solaris 10.
+
+@item
+The macros @code{HUGE_VALF} and @code{HUGE_VALL} are not defined on some
+platforms:
+glibc/HPPA, glibc/SPARC, AIX 5.1, IRIX 6.5, Solaris 9, MSVC 9.
+
+@item
+The macros @code{FP_ILOGB0} and @code{FP_ILOGBNAN} are not defined on some
+platforms:
+NetBSD 5.1, AIX 5.1, IRIX 6.5, Solaris 9, MSVC 9.
 @end itemize
 
 Portability problems not fixed by Gnulib:
 @itemize
+@item
+@code{NAN} is not a compile time constant with some compilers:
+OSF/1 with Compaq (ex-DEC) C 6.4.
+@item
+The macro or variable @code{math_errhandling} is not defined on some platforms:
+glibc 2.11, OpenBSD 4.9, NetBSD 5.1, UP-UX 11, IRIX 6.5, OSF/1 5.1, Cygwin 1.7.9, mingw, MSVC 9.
 @end itemize