From b4d3485e4fc1d029e620a59deb54b3f4f3f6b209 Mon Sep 17 00:00:00 2001
From: Eric Botcazou <ebotcazou@adacore.com>
Date: Thu, 10 May 2018 09:39:00 +0000
Subject: configure.ac (gcc_gxx_include_dir_add_sysroot): Set it to 1 only when
 --with-gxx-include-dir is also specified.

	* configure.ac (gcc_gxx_include_dir_add_sysroot): Set it to 1 only
	when --with-gxx-include-dir is also specified.
	* configure: Regenerate.

From-SVN: r260108
---
 gcc/configure | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

(limited to 'gcc/configure')

diff --git a/gcc/configure b/gcc/configure
index 5c345ce..7d69faf 100755
--- a/gcc/configure
+++ b/gcc/configure
@@ -3580,6 +3580,11 @@ esac
 fi
 
 
+# If both --with-sysroot and --with-gxx-include-dir are passed, we interpolate
+# the former in the latter and, upon success, compute gcc_gxx_include_dir as
+# relative to the sysroot.
+gcc_gxx_include_dir_add_sysroot=0
+
 # This logic must match libstdc++-v3/acinclude.m4:GLIBCXX_EXPORT_INSTALL_INFO.
 if test x${gcc_gxx_include_dir} = x; then
   if test x${enable_version_specific_runtime_libs} = xyes; then
@@ -3591,15 +3596,10 @@ if test x${gcc_gxx_include_dir} = x; then
     fi
     gcc_gxx_include_dir="\$(libsubdir)/\$(libsubdir_to_prefix)$libstdcxx_incdir"
   fi
-fi
-
-gcc_gxx_include_dir_add_sysroot=0
-if test "${with_sysroot+set}" = set; then
+elif test "${with_sysroot+set}" = set; then
   gcc_gxx_without_sysroot=`expr "${gcc_gxx_include_dir}" : "${with_sysroot}"'\(.*\)'`
   if test "${gcc_gxx_without_sysroot}"; then
-    if test x${with_sysroot} != x/; then
-      gcc_gxx_include_dir="${gcc_gxx_without_sysroot}"
-    fi
+    gcc_gxx_include_dir="${gcc_gxx_without_sysroot}"
     gcc_gxx_include_dir_add_sysroot=1
   fi
 fi
-- 
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