[PATCH 19/25] GCN libgfortran.

[ams]

This patch contains the GCN port of libgfortran.  We use the minimal
configuration created for NVPTX.  That's all that's required, besides the
target-independent bug fixes posted already.

2018-09-05  Andrew Stubbs  <a...@codesourcery.com>
            Kwok Cheung Yeung  <k...@codesourcery.com>
            Julian Brown  <jul...@codesourcery.com>
            Tom de Vries  <t...@codesourcery.com>

        libgfortran/
        * configure.ac: Use minimal mode for amdgcn.
        * configure: Regenerate.
---
 libgfortran/configure    | 7 ++++---
 libgfortran/configure.ac | 3 ++-
 2 files changed, 6 insertions(+), 4 deletions(-)


diff --git a/libgfortran/configure b/libgfortran/configure
index a583b67..fd8b697 100755
--- a/libgfortran/configure
+++ b/libgfortran/configure
@@ -5994,7 +5994,8 @@ fi
 # * C library support for other features such as signal, environment
 #   variables, time functions
 
- if test "x${target_cpu}" = xnvptx; then
+ if test "x${target_cpu}" = xnvptx \
+				 || test "x${target_cpu}" = xamdgcn; then
   LIBGFOR_MINIMAL_TRUE=
   LIBGFOR_MINIMAL_FALSE='#'
 else
@@ -12514,7 +12515,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 12517 "configure"
+#line 12518 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -12620,7 +12621,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 12623 "configure"
+#line 12624 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
diff --git a/libgfortran/configure.ac b/libgfortran/configure.ac
index 05952aa..11b629d 100644
--- a/libgfortran/configure.ac
+++ b/libgfortran/configure.ac
@@ -206,7 +206,8 @@ AM_CONDITIONAL(LIBGFOR_USE_SYMVER_SUN, [test "x$gfortran_use_symver" = xsun])
 # * C library support for other features such as signal, environment
 #   variables, time functions
 
-AM_CONDITIONAL(LIBGFOR_MINIMAL, [test "x${target_cpu}" = xnvptx])
+AM_CONDITIONAL(LIBGFOR_MINIMAL, [test "x${target_cpu}" = xnvptx \
+				 || test "x${target_cpu}" = xamdgcn])
 
 # Figure out whether the compiler supports "-ffunction-sections -fdata-sections",
 # similarly to how libstdc++ does it