diff --git a/configure b/configure
index c8655588573..0edb145378f 100755
--- a/configure
+++ b/configure
@@ -686,6 +686,7 @@ CPPFLAGS
 ac_ct_CC
 EXEEXT
 OBJEXT
+SUN_STUDIO_CC
 CPP
 GCC
 TAS
@@ -3758,6 +3759,54 @@ fi
 
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
+# Check if it's Sun Studio compiler. We assume that
+# __SUNPRO_C will be defined for Sun Studio compilers
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+int
+main ()
+{
+#ifndef __SUNPRO_C
+choke me
+#endif
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  SUN_STUDIO_CC=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	SUN_STUDIO_CC=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+
+
 unset CFLAGS
 
 #
@@ -26726,6 +26775,7 @@ CPPFLAGS!$CPPFLAGS$ac_delim
 ac_ct_CC!$ac_ct_CC$ac_delim
 EXEEXT!$EXEEXT$ac_delim
 OBJEXT!$OBJEXT$ac_delim
+SUN_STUDIO_CC!$SUN_STUDIO_CC$ac_delim
 CPP!$CPP$ac_delim
 GCC!$GCC$ac_delim
 TAS!$TAS$ac_delim
@@ -26754,7 +26804,6 @@ ELF_SYS!$ELF_SYS$ac_delim
 LDFLAGS_SL!$LDFLAGS_SL$ac_delim
 LD!$LD$ac_delim
 with_gnu_ld!$with_gnu_ld$ac_delim
-ld_R_works!$ld_R_works$ac_delim
 _ACEOF
 
   if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 97; then
@@ -26796,6 +26845,7 @@ _ACEOF
 ac_delim='%!_!# '
 for ac_last_try in false false false false false :; do
   cat >conf$$subs.sed <<_ACEOF
+ld_R_works!$ld_R_works$ac_delim
 RANLIB!$RANLIB$ac_delim
 STRIP!$STRIP$ac_delim
 STRIP_STATIC_LIB!$STRIP_STATIC_LIB$ac_delim
@@ -26850,7 +26900,7 @@ vpath_build!$vpath_build$ac_delim
 LTLIBOBJS!$LTLIBOBJS$ac_delim
 _ACEOF
 
-  if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 52; then
+  if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 53; then
     break
   elif $ac_last_try; then
     { { echo "$as_me:$LINENO: error: could not make $CONFIG_STATUS" >&5
diff --git a/configure.in b/configure.in
index afe9a37e865..073bfa855e9 100644
--- a/configure.in
+++ b/configure.in
@@ -1,5 +1,5 @@
 dnl Process this file with autoconf to produce a configure script.
-dnl $PostgreSQL: pgsql/configure.in,v 1.568 2008/10/29 09:27:24 petere Exp $
+dnl $PostgreSQL: pgsql/configure.in,v 1.569 2008/10/29 16:06:46 petere Exp $
 dnl
 dnl Developers, please strive to achieve this order:
 dnl
@@ -379,6 +379,14 @@ AC_TRY_COMPILE([], [@%:@ifndef __INTEL_COMPILER
 choke me
 @%:@endif], [ICC=[yes]], [ICC=[no]])
 
+# Check if it's Sun Studio compiler. We assume that
+# __SUNPRO_C will be defined for Sun Studio compilers
+AC_TRY_COMPILE([], [@%:@ifndef __SUNPRO_C
+choke me
+@%:@endif], [SUN_STUDIO_CC=yes], [SUN_STUDIO_CC=no])
+
+AC_SUBST(SUN_STUDIO_CC)
+
 unset CFLAGS
 
 #
diff --git a/src/Makefile.global.in b/src/Makefile.global.in
index f5ca618400a..a562cd116dd 100644
--- a/src/Makefile.global.in
+++ b/src/Makefile.global.in
@@ -1,5 +1,5 @@
 # -*-makefile-*-
-# $PostgreSQL: pgsql/src/Makefile.global.in,v 1.244 2008/10/03 15:35:17 petere Exp $
+# $PostgreSQL: pgsql/src/Makefile.global.in,v 1.245 2008/10/29 16:06:46 petere Exp $
 
 #------------------------------------------------------------------------------
 # All PostgreSQL makefiles include this file and use the variables it sets,
@@ -213,6 +213,7 @@ endif # not PGXS
 
 CC = @CC@
 GCC = @GCC@
+SUN_STUDIO_CC = @SUN_STUDIO_CC@
 CFLAGS = @CFLAGS@
 
 # Kind-of compilers
diff --git a/src/backend/port/Makefile b/src/backend/port/Makefile
index 6a71ef3a2b5..47980426564 100644
--- a/src/backend/port/Makefile
+++ b/src/backend/port/Makefile
@@ -13,7 +13,7 @@
 # be converted to Method 2.  
 #
 # IDENTIFICATION
-#    $PostgreSQL: pgsql/src/backend/port/Makefile,v 1.26 2008/02/19 15:29:58 petere Exp $
+#    $PostgreSQL: pgsql/src/backend/port/Makefile,v 1.27 2008/10/29 16:06:46 petere Exp $
 #
 #-------------------------------------------------------------------------
 
@@ -33,8 +33,8 @@ endif
 include $(top_srcdir)/src/backend/common.mk
 
 tas.o: tas.s
-ifeq ($(PORTNAME), solaris)
-# preprocess assembler file with cpp, used by x86
+ifeq ($(SUN_STUDIO_CC), yes)
+# preprocess assembler file with cpp
 	$(CC) $(CFLAGS) -c -P $<
 	mv $*.i $*_cpp.s
 	$(CC) $(CFLAGS) -c $*_cpp.s -o $@
diff --git a/src/backend/port/tas/solaris_sparc.s b/src/backend/port/tas/sunstudio_sparc.s
similarity index 67%
rename from src/backend/port/tas/solaris_sparc.s
rename to src/backend/port/tas/sunstudio_sparc.s
index 183cea18504..56d85f4514f 100644
--- a/src/backend/port/tas/solaris_sparc.s
+++ b/src/backend/port/tas/sunstudio_sparc.s
@@ -1,6 +1,15 @@
-!=======================================================================
-! solaris_sparc.s -- compare and swap for solaris_sparc
-!=======================================================================
+!-------------------------------------------------------------------------
+!
+! sunstudio_sparc.s
+!	  compare and swap for Sun Studio on Sparc
+!
+! Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group
+! Portions Copyright (c) 1994, Regents of the University of California
+!
+! IDENTIFICATION
+!	  $PostgreSQL: pgsql/src/backend/port/tas/sunstudio_sparc.s,v 1.1 2008/10/29 16:06:47 petere Exp $
+!
+!-------------------------------------------------------------------------
 
 ! Fortunately the Sun compiler can process cpp conditionals with -P
 
diff --git a/src/backend/port/tas/solaris_x86.s b/src/backend/port/tas/sunstudio_x86.s
similarity index 52%
rename from src/backend/port/tas/solaris_x86.s
rename to src/backend/port/tas/sunstudio_x86.s
index db1dea7c291..1680ccc6358 100644
--- a/src/backend/port/tas/solaris_x86.s
+++ b/src/backend/port/tas/sunstudio_x86.s
@@ -1,6 +1,15 @@
-/=======================================================================
-/ solaris_i386.s -- compare and swap for solaris_i386
-/=======================================================================
+/-------------------------------------------------------------------------
+/
+/ sunstudio_x86.s
+/	  compare and swap for Sun Studio on x86
+/
+/ Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group
+/ Portions Copyright (c) 1994, Regents of the University of California
+/
+/ IDENTIFICATION
+/	  $PostgreSQL: pgsql/src/backend/port/tas/sunstudio_x86.s,v 1.1 2008/10/29 16:06:47 petere Exp $
+/
+/-------------------------------------------------------------------------
 
 / Fortunately the Sun compiler can process cpp conditionals with -P
 
diff --git a/src/include/storage/s_lock.h b/src/include/storage/s_lock.h
index 7d9448fb7e4..e67b0ab3185 100644
--- a/src/include/storage/s_lock.h
+++ b/src/include/storage/s_lock.h
@@ -66,7 +66,7 @@
  * Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- *	  $PostgreSQL: pgsql/src/include/storage/s_lock.h,v 1.164 2008/01/01 19:45:59 momjian Exp $
+ *	  $PostgreSQL: pgsql/src/include/storage/s_lock.h,v 1.165 2008/10/29 16:06:47 petere Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -578,7 +578,7 @@ typedef unsigned char slock_t;
 #endif
 
 
-#endif	/* __GNUC__ */
+#endif	/* defined(__GNUC__) || defined(__INTEL_COMPILER) */
 
 
 
@@ -782,7 +782,7 @@ typedef unsigned char slock_t;
 #endif
 
 
-#if defined(__sun) && (defined(__i386) || defined(__x86_64__) || defined(__sparc__) || defined(__sparc))
+#if defined(__SUNPRO_C) && (defined(__i386) || defined(__x86_64__) || defined(__sparc__) || defined(__sparc))
 #define HAS_TEST_AND_SET
 
 #if defined(__i386) || defined(__x86_64__) || defined(__sparcv9) || defined(__sparcv8plus)
diff --git a/src/template/linux b/src/template/linux
index ed800d23f12..19904bc22e1 100644
--- a/src/template/linux
+++ b/src/template/linux
@@ -1,7 +1,30 @@
-# $PostgreSQL: pgsql/src/template/linux,v 1.30 2007/09/21 02:33:46 tgl Exp $
+# $PostgreSQL: pgsql/src/template/linux,v 1.31 2008/10/29 16:06:47 petere Exp $
 
 # Force _GNU_SOURCE on; plperl is broken with Perl 5.8.0 otherwise
 CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE"
 
 # If --enable-profiling is specified, we need -DLINUX_PROFILE
 PLATFORM_PROFILE_FLAGS="-DLINUX_PROFILE"
+
+if test "$SUN_STUDIO_CC" = "yes" ; then
+  CC="$CC -Xa"			# relaxed ISO C mode
+  CFLAGS="-v"			# -v is like gcc -Wall
+  if test "$enable_debug" != yes; then
+    CFLAGS="$CFLAGS -O"		# any optimization breaks debug
+  fi
+
+  # Pick the right test-and-set (TAS) code for the Sun compiler.
+  # We would like to use in-line assembler, but the compiler
+  # requires *.il files to be on every compile line, making
+  # the build system too fragile.
+  case $host_cpu in
+    sparc)
+	need_tas=yes
+	tas_file=sunstudio_sparc.s
+    ;;
+    i?86|x86_64)
+	need_tas=yes
+	tas_file=sunstudio_x86.s
+    ;;
+  esac
+fi
diff --git a/src/template/solaris b/src/template/solaris
index 07efcc0bda4..40e3a68c88e 100644
--- a/src/template/solaris
+++ b/src/template/solaris
@@ -1,22 +1,22 @@
-if test "$GCC" != yes ; then
+if test "$SUN_STUDIO_CC" = yes ; then
   CC="$CC -Xa"			# relaxed ISO C mode
-  CFLAGS="-v -DSUNOS4_CC"	# -v is like gcc -Wall
+  CFLAGS="-v"			# -v is like gcc -Wall
   if test "$enable_debug" != yes; then
     CFLAGS="$CFLAGS -O"		# any optimization breaks debug
   fi
 
   # Pick the right test-and-set (TAS) code for the Sun compiler.
   # We would like to use in-line assembler, but the compiler
-  # requires *.il files to be on every compile line, making 
+  # requires *.il files to be on every compile line, making
   # the build system too fragile.
-  case $host in
-    sparc-*-solaris*)
+  case $host_cpu in
+    sparc)
 	need_tas=yes
-	tas_file=solaris_sparc.s
+	tas_file=sunstudio_sparc.s
     ;;
-    i?86-*-solaris*)
+    i?86|x86_64)
 	need_tas=yes
-	tas_file=solaris_x86.s
+	tas_file=sunstudio_x86.s
     ;;
   esac
 fi