[libgomp] Clarify difference between offload target, offload plugin, and OpenACC...

[thirdparty/gcc.git] / libgomp / configure

diff --git a/libgomp/configure b/libgomp/configure
index 013e37c0ba5293fe88010b8a8e9d7fb87e72de54..1033ae4d988d0748161af92bc866c62ea0e4ff65 100755 (executable)
--- a/libgomp/configure
+++ b/libgomp/configure
@@ -667,6 +667,7 @@ PLUGIN_NVPTX_FALSE
 PLUGIN_NVPTX_TRUE
 offload_additional_lib_paths
 offload_additional_options
+offload_plugins
 PLUGIN_HSA_LIBS
 PLUGIN_HSA_LDFLAGS
 PLUGIN_HSA_CPPFLAGS
@@ -679,7 +680,6 @@ PLUGIN_NVPTX_CPPFLAGS
 PLUGIN_NVPTX
 CUDA_DRIVER_LIB
 CUDA_DRIVER_INCLUDE
-offload_targets
 libtool_VERSION
 ac_ct_FC
 FCFLAGS
@@ -15401,8 +15401,6 @@ fi
 # see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 # <http://www.gnu.org/licenses/>.
 
-offload_targets=
-
 plugin_support=yes
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlsym in -ldl" >&5
 $as_echo_n "checking for dlsym in -ldl... " >&6; }
@@ -15621,7 +15619,10 @@ PLUGIN_HSA_LIBS=
 
 
 
-# Get offload targets and path to install tree of offloading compiler.
+# Parse '--enable-offload-targets', figure out the corresponding libgomp
+# plugins, and configure to find the corresponding offload compilers.
+offload_plugins=
+
 offload_additional_options=
 offload_additional_lib_paths=
 
@@ -15630,13 +15631,13 @@ if test x"$enable_offload_targets" != x; then
   for tgt in `echo $enable_offload_targets | sed -e 's#,# #g'`; do
     tgt_dir=`echo $tgt | grep '=' | sed 's/.*=//'`
     tgt=`echo $tgt | sed 's/=.*//'`
-    tgt_name=
+    tgt_plugin=
     case $tgt in
       *-intelmic-* | *-intelmicemul-*)
-       tgt_name=intelmic
+       tgt_plugin=intelmic
        ;;
       nvptx*)
-        tgt_name=nvptx
+       tgt_plugin=nvptx
        PLUGIN_NVPTX=$tgt
        if test "x$CUDA_DRIVER_LIB" != xno \
           && test "x$CUDA_DRIVER_LIB" != xno; then
@@ -15695,7 +15696,7 @@ rm -f core conftest.err conftest.$ac_objext \
                PLUGIN_HSA=0
                ;;
              *)
-               tgt_name=hsa
+               tgt_plugin=hsa
                PLUGIN_HSA=$tgt
                PLUGIN_HSA_CPPFLAGS=$HSA_RUNTIME_CPPFLAGS
                PLUGIN_HSA_LDFLAGS="$HSA_RUNTIME_LDFLAGS"
@@ -15713,7 +15714,7 @@ rm -f core conftest.err conftest.$ac_objext \
                LDFLAGS=$PLUGIN_HSA_save_LDFLAGS
                LIBS=$PLUGIN_HSA_save_LIBS
                case $PLUGIN_HSA in
-                 hsa*)
+                 hsa*)
                    HSA_PLUGIN=0
                    as_fn_error $? "HSA run-time package required for HSA support" "$LINENO" 5
                    ;;
@@ -15730,16 +15731,17 @@ rm -f core conftest.err conftest.$ac_objext \
        as_fn_error $? "unknown offload target specified" "$LINENO" 5
        ;;
     esac
-    if test x"$tgt_name" = x; then
-      # Don't configure libgomp for this offloading target if we don't build
-      # the corresponding plugin.
+    if test x"$tgt_plugin" = x; then
+      # Not configuring libgomp for this offload target if we're not building
+      # the corresponding offload plugin.
       continue
-    elif test x"$offload_targets" = x; then
-      offload_targets=$tgt_name
+    elif test x"$offload_plugins" = x; then
+      offload_plugins=$tgt_plugin
     else
-      offload_targets=$offload_targets,$tgt_name
+      offload_plugins=$offload_plugins,$tgt_plugin
     fi
-    if test "$tgt_name" = hsa; then
+    # Configure additional search paths.
+    if test "$tgt_plugin" = hsa; then
       # Offloading compilation is all handled by the target compiler.
       :
     elif test x"$tgt_dir" != x; then
@@ -15753,7 +15755,7 @@ rm -f core conftest.err conftest.$ac_objext \
 fi
 
 cat >>confdefs.h <<_ACEOF
-#define OFFLOAD_TARGETS "$offload_targets"
+#define OFFLOAD_PLUGINS "$offload_plugins"
 _ACEOF
 
  if test $PLUGIN_NVPTX = 1; then