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-rw-r--r--configure.in6
1 files changed, 5 insertions, 1 deletions
diff --git a/configure.in b/configure.in
index 999495b037e..2a8c4c2212d 100644
--- a/configure.in
+++ b/configure.in
@@ -1118,7 +1118,11 @@ fi
CFLAGS="$saved_CFLAGS"
if test x$have_gmp != xyes; then
- AC_MSG_ERROR([Building GCC requires GMP 4.1+ and MPFR 2.2+. Try the --with-gmp and/or --with-mpfr options.])
+ AC_MSG_ERROR([Building GCC requires GMP 4.1+ and MPFR 2.2+.
+Try the --with-gmp and/or --with-mpfr options to specify their locations.
+Copies of these libraries' source code can be found at their respective
+hosting sites as well as at ftp://gcc.gnu.org/pub/gcc/infrastructure/.
+See also http://gcc.gnu.org/install/prerequisites.html for additional info.])
fi
# Flags needed for both GMP and/or MPFR