* config.gcc (widely ported systems section): Reindent and clean up.

From-SVN: r71756

gcc/ChangeLog

 2003-09-25  Nathanael Nerode  <neroden@gcc.gnu.org>
 
+	* config.gcc (widely ported systems section): Reindent and clean up.
+
 	* config.gcc: Remove some unnecessary uses of 'x' in case statements.
 	Actually allow ep9312 as an arm --with-arch setting.
 

gcc/config.gcc

@@ -327,18 +327,15 @@ esac
 
 # Common parts for widely ported systems.
 case ${target} in
-*-*-linux*)
-	case ${target} in
-	 *-*-linux*libc1* | *-*-linux*aout*)
+*-*-linux*libc1* | *-*-linux*aout*)
+  # Avoid the generic linux case.
   ;;
-	*)
+*-*-linux*)
   extra_parts="crtbegin.o crtbeginS.o crtbeginT.o crtend.o crtendS.o"
-		gas=yes gnu_ld=yes
-		case x${enable_threads} in
-			x | xyes | xposix) thread_file='posix'
-			;;
-		esac
-		;;
+  gas=yes
+  gnu_ld=yes
+  case ${enable_threads} in
+    "" | yes | posix) thread_file='posix' ;;
   esac
   ;;
 *-*-gnu*)
@@ -348,8 +345,8 @@ case ${target} in
   tm_file="${cpu_type}/gnu.h"
   extra_parts="crtbegin.o crtend.o crtbeginS.o crtendS.o crtbeginT.o"
   # GNU tools are the only tools.
-	gnu_ld=yes
   gas=yes
+  gnu_ld=yes
   # These details are the same as for Linux.
   # But here we need a little extra magic.
   tmake_file="t-slibgcc-elf-ver t-linux t-gnu"
@@ -364,10 +361,12 @@ case ${target} in
   ;;
 *-*-openbsd*)
   tmake_file="t-libc-ok t-openbsd t-libgcc-pic"
-	if test x$enable_threads = xyes; then
+  case ${enable_threads} in
+    yes)
       thread_file='posix'
       tmake_file="${tmake_file} t-openbsd-thread"
-	fi
+      ;;
+  esac
   ;;
 *-*-netbsd*)
   tmake_file="t-slibgcc-elf-ver t-libc-ok t-netbsd t-libgcc-pic"
@@ -376,8 +375,8 @@ case ${target} in
 
   # NetBSD 2.0 and later get POSIX threads enabled by default.
   # Allow them to be explicitly enabled on any other version.
-	case x${enable_threads} in
-	x)
+  case ${enable_threads} in
+    "")
       case ${target} in
         *-*-netbsd[2-9]* | *-*-netbsdelf[2-9]*)
           thread_file='posix'
@@ -385,7 +384,7 @@ case ${target} in
           ;;
       esac
       ;;
-	xyes | xposix)
+    yes | posix)
       thread_file='posix'
       tm_defines="${tm_defines} NETBSD_ENABLE_PTHREADS"
       ;;
@@ -444,19 +443,25 @@ case ${target} in
     *) echo 'Please update *-*-freebsd* in gcc/config.gcc'; exit 1;;
   esac
   tmake_file="t-slibgcc-elf-ver t-freebsd"
-	case x${enable_threads} in
-	xno) fbsd_tm_file="${fbsd_tm_file} freebsd-nthr.h";;
-	x | xyes | xpthreads | xposix)
+  case ${enable_threads} in
+    no)
+      fbsd_tm_file="${fbsd_tm_file} freebsd-nthr.h"
+      ;;
+    "" | yes | pthreads | posix)
       thread_file='posix'
       tmake_file="${tmake_file} t-freebsd-thread"
       # Before 5.0, FreeBSD can't bind shared libraries to -lc
       # when "optionally" threaded via weak pthread_* checks.
       case ${target} in
         *-*-freebsd[34] | *-*-freebsd[34].*)
-			tmake_file="${tmake_file} t-slibgcc-nolc-override";;
+          tmake_file="${tmake_file} t-slibgcc-nolc-override"
+          ;;
       esac
       ;;
-	*) echo 'Unknown thread configuration for FreeBSD'; exit 1;;
+    *) 
+      echo 'Unknown thread configuration for FreeBSD'
+      exit 1
+      ;;
   esac
   fbsd_tm_file="${fbsd_tm_file} freebsd-spec.h freebsd.h"
   ;;
@@ -469,9 +474,8 @@ case ${target} in
   cxx_target_objs="darwin-c.o"
   extra_parts="crt2.o"
   extra_objs="darwin.o"
-	case x${enable_threads} in
-	     x | xyes | xposix) thread_file='posix'
-	     ;;
+  case ${enable_threads} in
+    "" | yes | posix) thread_file='posix' ;;
   esac
   ;;
 *-*-vxworks*)