re PR testsuite/36443 (HOSTCC doesn't work with installed gcc)

	PR testsuite/36443
	* gcc.dg/compat/struct-layout-1.exp: Temporarily unset
	GCC_EXEC_PREFIX from environment when running $HOSTCC.
	* g++.dg/compat/struct-layout-1.exp: Likewise.

From-SVN: r136698

gcc/testsuite/ChangeLog

+2008-06-12  Jakub Jelinek  <jakub@redhat.com>
+
+	PR testsuite/36443
+	* gcc.dg/compat/struct-layout-1.exp: Temporarily unset
+	GCC_EXEC_PREFIX from environment when running $HOSTCC.
+	* g++.dg/compat/struct-layout-1.exp: Likewise.
+
 2008-06-12  Richard Guenther  <rguenther@suse.de>
 
 	PR tree-optimization/36345

gcc/testsuite/g++.dg/compat/struct-layout-1.exp

@@ -128,8 +128,19 @@ set generator_src "$generator_src $srcdir/$subdir/../../gcc.dg/compat/generate-r
 set generator_src "$generator_src $srcdir/$subdir/../../gcc.dg/compat/generate-random_r.c"
 set generator_cmd "-o $generator $generator_src"
 
+# Temporarily unset GCC_EXEC_PREFIX from environment, as that might
+# confuse the $HOSTCC.
+if [info exists env(GCC_EXEC_PREFIX)] {
+     set orig_gcc_exec_prefix "$env(GCC_EXEC_PREFIX)"
+     set orig_gcc_exec_prefix_saved 1
+     unsetenv GCC_EXEC_PREFIX
+}
 set status [remote_exec host "$HOSTCC $HOSTCFLAGS $generator_cmd"]
 set status [lindex $status 0]
+if { $orig_gcc_exec_prefix_saved } {
+     set orig_gcc_exec_prefix_saved 0
+     setenv GCC_EXEC_PREFIX "$orig_gcc_exec_prefix"
+}
 if { $status == 0 } then {
     file delete -force $tstobjdir
     file mkdir $tstobjdir

gcc/testsuite/gcc.dg/compat/struct-layout-1.exp

@@ -90,8 +90,19 @@ set generator_src "$generator_src $srcdir/$subdir/generate-random.c"
 set generator_src "$generator_src $srcdir/$subdir/generate-random_r.c"
 set generator_cmd "-o $generator $skip_dfp $generator_src"
 
+# Temporarily unset GCC_EXEC_PREFIX from environment, as that might
+# confuse the $HOSTCC.
+if [info exists env(GCC_EXEC_PREFIX)] {
+     set orig_gcc_exec_prefix "$env(GCC_EXEC_PREFIX)"
+     set orig_gcc_exec_prefix_saved 1
+     unsetenv GCC_EXEC_PREFIX
+}
 set status [remote_exec host "$HOSTCC $HOSTCFLAGS $generator_cmd"]
 set status [lindex $status 0]
+if { $orig_gcc_exec_prefix_saved } {
+     set orig_gcc_exec_prefix_saved 0
+     setenv GCC_EXEC_PREFIX "$orig_gcc_exec_prefix"
+}
 if { $status == 0 } then {
     file delete -force $tstobjdir
     file mkdir $tstobjdir