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-rw-r--r--gcc/configure.ac15
1 files changed, 15 insertions, 0 deletions
diff --git a/gcc/configure.ac b/gcc/configure.ac
index 7c55bff..f1de29e 100644
--- a/gcc/configure.ac
+++ b/gcc/configure.ac
@@ -1253,6 +1253,21 @@ else
fi
AC_SUBST(GENERATED_MANPAGES)
+# See if sphinx-build has been installed and is modern enough
+# that we can use it.
+AC_MSG_CHECKING([for sphinx-build])
+if sphinx-build -j auto -h &>/dev/null ; then
+ SPHINX_BUILD=sphinx-build
+ AC_MSG_RESULT(yes)
+else
+ AC_MSG_WARN([
+ *** sphinx-build is missing or too old.
+ *** Info and man pages documentation will not be built.])
+ AC_MSG_RESULT(no)
+ SPHINX_BUILD=
+fi
+AC_SUBST(SPHINX_BUILD)
+
MISSING="${CONFIG_SHELL-/bin/sh} $ac_aux_dir/missing"
# How about lex?