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-rw-r--r--gcc/tm.texi3
1 files changed, 2 insertions, 1 deletions
diff --git a/gcc/tm.texi b/gcc/tm.texi
index 48f4439ed94..a13c6d97424 100644
--- a/gcc/tm.texi
+++ b/gcc/tm.texi
@@ -321,7 +321,8 @@ try when searching for the executable files of the compiler.
If defined, this macro is an additional prefix to try after
@code{STANDARD_EXEC_PREFIX}. @code{MD_EXEC_PREFIX} is not searched
when the @samp{-b} option is used, or the compiler is built as a cross
-compiler.
+compiler. If you define @code{MD_EXEC_PREFIX}, then be sure to add it
+to the list of directories used to find the assembler in @file{configure.in}.
@findex STANDARD_STARTFILE_PREFIX
@item STANDARD_STARTFILE_PREFIX