Check for shared lib support before running ld tests with -shared

Another fix now that we run these tests non-native.

	* testsuite/ld-elf/audit.exp: Check for shared lib support.
	* testsuite/ld-elf/compress.exp: Likewise.
	* testsuite/ld-elf/dwarf.exp: Likewise.
	* testsuite/ld-elf/shared.exp: Likewise.
	* testsuite/ld-elf/wrap.exp: Likewise.
	* testsuite/ld-ifunc/ifunc.exp: Likewise.
	* testsuite/ld-plugin/lto.exp: Check $CXX exists.

7 files changed, 38 insertions, 2 deletions

diff --git a/ld/testsuite/ld-elf/audit.exp b/ld/testsuite/ld-elf/audit.exp
index aad5339..83ee355 100644
--- a/ld/testsuite/ld-elf/audit.exp
+++ b/ld/testsuite/ld-elf/audit.exp
@@ -25,6 +25,12 @@ if ![is_elf_format] {
     return
 }
 
+# Skip targets where -shared is not supported
+
+if ![check_shared_lib_support] {
+    return
+}
+
 # Check if compiler works
 if { [which $CC] == 0 } {
     return
diff --git a/ld/testsuite/ld-elf/compress.exp b/ld/testsuite/ld-elf/compress.exp
index b2b6ca1..5620f3c 100644
--- a/ld/testsuite/ld-elf/compress.exp
+++ b/ld/testsuite/ld-elf/compress.exp
@@ -25,6 +25,12 @@ if ![is_elf_format] {
     return
 }
 
+# Skip targets where -shared is not supported
+
+if ![check_shared_lib_support] {
+    return
+}
+
 # Check if compiler works
 if { [which $CC] == 0 } {
     return
diff --git a/ld/testsuite/ld-elf/dwarf.exp b/ld/testsuite/ld-elf/dwarf.exp
index 572c704..529ebcc 100644
--- a/ld/testsuite/ld-elf/dwarf.exp
+++ b/ld/testsuite/ld-elf/dwarf.exp
@@ -29,6 +29,12 @@ if ![is_elf_format] {
     return
 }
 
+# Skip targets where -shared is not supported
+
+if ![check_shared_lib_support] {
+    return
+}
+
 # Check if compiler works
 if { [which $CC] == 0 } {
     return
diff --git a/ld/testsuite/ld-elf/shared.exp b/ld/testsuite/ld-elf/shared.exp
index aac3acc..f38cd7b 100644
--- a/ld/testsuite/ld-elf/shared.exp
+++ b/ld/testsuite/ld-elf/shared.exp
@@ -25,6 +25,12 @@ if ![is_elf_format] {
     return
 }
 
+# Skip targets where -shared is not supported
+
+if ![check_shared_lib_support] {
+    return
+}
+
 # Check to see if the C compiler works
 if { [which $CC] == 0 } {
     return
diff --git a/ld/testsuite/ld-elf/wrap.exp b/ld/testsuite/ld-elf/wrap.exp
index 4bf8faa..4a166be 100644
--- a/ld/testsuite/ld-elf/wrap.exp
+++ b/ld/testsuite/ld-elf/wrap.exp
@@ -25,6 +25,12 @@ if ![is_elf_format] {
     return
 }
 
+# Skip targets where -shared is not supported
+
+if ![check_shared_lib_support] {
+    return
+}
+
 # Check if compiler works
 if { [which $CC] == 0 } {
     return
diff --git a/ld/testsuite/ld-ifunc/ifunc.exp b/ld/testsuite/ld-ifunc/ifunc.exp
index d7519b5..ffff2f1 100644
--- a/ld/testsuite/ld-ifunc/ifunc.exp
+++ b/ld/testsuite/ld-ifunc/ifunc.exp
@@ -41,6 +41,12 @@ if {!(([istarget "i?86-*-*"]
     return
 }
 
+# Skip targets where -shared is not supported
+
+if ![check_shared_lib_support] {
+    return
+}
+
 # We need a working compiler.  (Strictly speaking this is
 # not true, we could use target specific assembler files).
 if { [which $CC] == 0 } {
diff --git a/ld/testsuite/ld-plugin/lto.exp b/ld/testsuite/ld-plugin/lto.exp
index b13c540..b525acf 100644
--- a/ld/testsuite/ld-plugin/lto.exp
+++ b/ld/testsuite/ld-plugin/lto.exp
@@ -18,8 +18,8 @@
 # Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
 # MA 02110-1301, USA.
 
-# Check to see if the C compiler works
-if { [which $CC] == 0 } {
+# Check to see if the C and C++ compilers work
+if { [which $CC] == 0 || [which $CXX] == 0 } {
     return
 }