X-Git-Url: http://git.sourceforge.jp/view?p=pf3gnuchains%2Fgcc-fork.git;a=blobdiff_plain;f=gcc%2Fdoc%2Fsourcebuild.texi;h=fc564908efb24ab1d62a232b769636651c147a6c;hp=780653a6e89983e946c94162088585b07776ee0f;hb=50388ca3231d2219dd81d1b840dc1581671fe7cf;hpb=b47f1d9300e4bbe061b1b0f1662a7e7ae3937d0a;ds=sidebyside

diff --git a/gcc/doc/sourcebuild.texi b/gcc/doc/sourcebuild.texi
index 780653a6e89..fc564908efb 100644
--- a/gcc/doc/sourcebuild.texi
+++ b/gcc/doc/sourcebuild.texi
@@ -301,6 +301,9 @@ such as POSIX specify additional values to be defined in
 @file{gsyslimits.h} if it does not need fixing to work with GCC; if it
 needs fixing, @file{syslimits.h} is the fixed copy.
 
+GCC can also install @code{<tgmath.h>}.  It will do this when
+@file{config.gcc} sets @code{use_gcc_tgmath} to @code{yes}.
+
 @node Documentation
 @subsection Building Documentation