config.gcc (widely ported systems section): Mostly alphabetize by system.

	* config.gcc (widely ported systems section): Mostly alphabetize
	by system.  Comment the case where we can't.

From-SVN: r71759

gcc/ChangeLog

 2003-09-25  Nathanael Nerode  <neroden@gcc.gnu.org>
 
+	* config.gcc (widely ported systems section): Mostly alphabetize
+	by system.  Comment the case where we can't.
 	* config.gcc (widely ported systems section): Reindent and clean up.
 
 	* config.gcc: Remove some unnecessary uses of 'x' in case statements.

gcc/config.gcc

@@ -327,10 +327,82 @@ esac
 
 # Common parts for widely ported systems.
 case ${target} in
+*-*-darwin*)
+  tm_file="${tm_file} darwin.h"
+  tm_p_file="${tm_p_file} darwin-protos.h"
+  tmake_file="t-darwin"
+  target_gtfiles="\$(srcdir)/config/darwin.c"
+  c_target_objs="darwin-c.o"
+  cxx_target_objs="darwin-c.o"
+  extra_parts="crt2.o"
+  extra_objs="darwin.o"
+  case ${enable_threads} in
+    "" | yes | posix) thread_file='posix' ;;
+  esac
+  ;;
+*-*-freebsd[12] | *-*-freebsd[12].* | *-*-freebsd*aout*)
+  # This is the place-holder for the generic a.out configuration
+  # of FreeBSD.  No actual configuration resides here since
+  # there was only ever a bare-bones ix86 configuration for
+  # a.out and it exists solely in the machine-specific section.
+  # This place-holder must exist to avoid dropping into
+  # the generic ELF configuration of FreeBSD (i.e. it must be
+  # ordered before that section).
+  ;;
+*-*-freebsd*)
+  # This is the generic ELF configuration of FreeBSD.  Later
+  # machine-specific sections may refine and add to this
+  # configuration.
+  #
+  # Due to tm_file entry ordering issues that vary between cpu
+  # architectures, we only define fbsd_tm_file to allow the
+  # machine-specific section to dictate the final order of all
+  # entries of tm_file with the minor exception that components
+  # of the tm_file set here will always be of the form:
+  #
+  # freebsd<version_number>.h [freebsd-<conf_option>.h ...] freebsd-spec.h freebsd.h
+  #
+  # The machine-specific section should not tamper with this
+  # ordering but may order all other entries of tm_file as it
+  # pleases around the provided core setting.
+  gas=yes
+  gnu_ld=yes
+  extra_parts="crtbegin.o crtend.o crtbeginS.o crtendS.o"
+  case ${target} in
+    *-*-freebsd3 | *-*-freebsd[3].*) fbsd_tm_file="freebsd3.h";;
+    *-*-freebsd4 | *-*-freebsd[4].*) fbsd_tm_file="freebsd4.h";;
+    *-*-freebsd5 | *-*-freebsd[5].*) fbsd_tm_file="freebsd5.h";;
+    *-*-freebsd6 | *-*-freebsd[6].*) fbsd_tm_file="freebsd6.h";;
+    *) echo 'Please update *-*-freebsd* in gcc/config.gcc'; exit 1;;
+  esac
+  tmake_file="t-slibgcc-elf-ver t-freebsd"
+  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"
+          ;;
+      esac
+      ;;
+    *) 
+      echo 'Unknown thread configuration for FreeBSD'
+      exit 1
+      ;;
+  esac
+  fbsd_tm_file="${fbsd_tm_file} freebsd-spec.h freebsd.h"
+  ;;
 *-*-linux*libc1* | *-*-linux*aout*)
   # Avoid the generic linux case.
   ;;
 *-*-linux*)
+  # Must come before *-*-gnu* (because of *-*-linux-gnu* systems).
   extra_parts="crtbegin.o crtbeginS.o crtbeginT.o crtend.o crtendS.o"
   gas=yes
   gnu_ld=yes
@@ -359,15 +431,6 @@ case ${target} in
       ;;
   esac
   ;;
-*-*-openbsd*)
-  tmake_file="t-libc-ok t-openbsd t-libgcc-pic"
-  case ${enable_threads} in
-    yes)
-      thread_file='posix'
-      tmake_file="${tmake_file} t-openbsd-thread"
-      ;;
-  esac
-  ;;
 *-*-netbsd*)
   tmake_file="t-slibgcc-elf-ver t-libc-ok t-netbsd t-libgcc-pic"
   gas=yes
@@ -407,76 +470,14 @@ case ${target} in
       ;;
   esac
   ;;
-*-*-freebsd[12] | *-*-freebsd[12].* | *-*-freebsd*aout*)
-  # This is the place-holder for the generic a.out configuration
-  # of FreeBSD.  No actual configuration resides here since
-  # there was only ever a bare-bones ix86 configuration for
-  # a.out and it exists solely in the machine-specific section.
-  # This place-holder must exist to avoid dropping into
-  # the generic ELF configuration of FreeBSD (i.e. it must be
-  # ordered before that section).
-  ;;
-*-*-freebsd*)
-  # This is the generic ELF configuration of FreeBSD.  Later
-  # machine-specific sections may refine and add to this
-  # configuration.
-  #
-  # Due to tm_file entry ordering issues that vary between cpu
-  # architectures, we only define fbsd_tm_file to allow the
-  # machine-specific section to dictate the final order of all
-  # entries of tm_file with the minor exception that components
-  # of the tm_file set here will always be of the form:
-  #
-  # freebsd<version_number>.h [freebsd-<conf_option>.h ...] freebsd-spec.h freebsd.h
-  #
-  # The machine-specific section should not tamper with this
-  # ordering but may order all other entries of tm_file as it
-  # pleases around the provided core setting.
-  gas=yes
-  gnu_ld=yes
-  extra_parts="crtbegin.o crtend.o crtbeginS.o crtendS.o"
-  case ${target} in
-    *-*-freebsd3 | *-*-freebsd[3].*) fbsd_tm_file="freebsd3.h";;
-    *-*-freebsd4 | *-*-freebsd[4].*) fbsd_tm_file="freebsd4.h";;
-    *-*-freebsd5 | *-*-freebsd[5].*) fbsd_tm_file="freebsd5.h";;
-    *-*-freebsd6 | *-*-freebsd[6].*) fbsd_tm_file="freebsd6.h";;
-    *) echo 'Please update *-*-freebsd* in gcc/config.gcc'; exit 1;;
-  esac
-  tmake_file="t-slibgcc-elf-ver t-freebsd"
+*-*-openbsd*)
+  tmake_file="t-libc-ok t-openbsd t-libgcc-pic"
   case ${enable_threads} in
-    no)
-      fbsd_tm_file="${fbsd_tm_file} freebsd-nthr.h"
-      ;;
-    "" | yes | pthreads | posix)
+    yes)
       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"
-          ;;
-      esac
-      ;;
-    *) 
-      echo 'Unknown thread configuration for FreeBSD'
-      exit 1
+      tmake_file="${tmake_file} t-openbsd-thread"
       ;;
   esac
-  fbsd_tm_file="${fbsd_tm_file} freebsd-spec.h freebsd.h"
-  ;;
-*-*-darwin*)
-  tm_file="${tm_file} darwin.h"
-  tm_p_file="${tm_p_file} darwin-protos.h"
-  tmake_file="t-darwin"
-  target_gtfiles="\$(srcdir)/config/darwin.c"
-  c_target_objs="darwin-c.o"
-  cxx_target_objs="darwin-c.o"
-  extra_parts="crt2.o"
-  extra_objs="darwin.o"
-  case ${enable_threads} in
-    "" | yes | posix) thread_file='posix' ;;
-  esac
   ;;
 *-*-vxworks*)
   tmake_file=t-vxworks