Remove configuration name patterns from shlib-versions.

This patch removes the first column (patterns matching configuration
names) from shlib-versions, leaving shlib-versions entry selection
based purely on sysdeps directories.

An implication of this removal is that the default for any non-Linux
ports using NPTL will be the same SONAMEs for NPTL libraries as for
Linux (as those defaults, previously limited to .*-.*-linux.*, are
left in nptl/shlib-versions and nptl_db/shlib-versions).

Special host_os handling in configure.ac that was purely for
shlib-versions is removed.  (The host_os setting is still used for
libc-abis - see
<https://sourceware.org/ml/libc-alpha/2014-01/msg00375.html> regarding
that - but no entries there are affected by this change.)

Tested on x86_64 and x86 that the installed shared libraries are
unchanged by this patch.

	* scripts/soversions.awk: Do not handle configuration names.
	* Makeconfig ($(common-objpfx)soversions.i): Do not pass cpu,
	vendor and os variables to soversions.awk.
	* configure.ac: Do not modify gnu-* host_os.
	* configure: Regenerated
	* shlib-versions: Remove first column with configuration names.
	* nptl/shlib-versions: Likewise.
	* nptl_db/shlib-versions: Likewise.
	* sysdeps/hppa/shlib-versions: Likewise.
	* sysdeps/m68k/shlib-versions: Likewise.
	* sysdeps/mach/hurd/shlib-versions: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/shlib-versions: Likewise.
	* sysdeps/unix/sysv/linux/alpha/shlib-versions: Likewise.
	* sysdeps/unix/sysv/linux/arm/shlib-versions: Likewise.
	* sysdeps/unix/sysv/linux/hppa/shlib-versions: Likewise.
	* sysdeps/unix/sysv/linux/ia64/shlib-versions: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/shlib-versions: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/shlib-versions: Likewise.
	* sysdeps/unix/sysv/linux/mips/shlib-versions: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/shlib-versions:
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/shlib-versions: Likewise.
	* sysdeps/unix/sysv/linux/sh/shlib-versions: Likewise.
	* sysdeps/unix/sysv/linux/shlib-versions: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/shlib-versions: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/shlib-versions: Likewise.
	* sysdeps/unix/sysv/linux/tile/shlib-versions: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/shlib-versions: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/shlib-versions: Likewise.

libidn/ChangeLog:
	* shlib-versions: Remove first column with configuration names.

1 files changed, 23 insertions, 41 deletions

diff --git a/scripts/soversions.awk b/scripts/soversions.awk
index adba1556f0..dbc90590e8 100644
--- a/scripts/soversions.awk
+++ b/scripts/soversions.awk
@@ -1,59 +1,41 @@
 # awk script for shlib-versions.v -> soversions.i; see Makeconfig.
 
-BEGIN {
-  config = cpu "-" vendor "-" os;
-  configs[config] = "DEFAULT";
-}
-
-{ thiscf = $1 }
-
 # Obey the first matching DEFAULT line.
-$2 == "DEFAULT" {
-  $1 = $2 = "";
-  default_set[++ndefault_set] = thiscf "\n" $0;
+$1 == "DEFAULT" {
+  $1 = "";
+  default_set[++ndefault_set] = $0;
   next
 }
 
 # Collect all lib lines before emitting anything, so DEFAULT
 # can be interspersed.
 {
-  lib = number = $2;
+  lib = number = $1;
   sub(/=.*$/, "", lib);
   sub(/^.*=/, "", number);
-  if ((thiscf FS lib) in numbers) next;
-  numbers[thiscf FS lib] = number;
-  order[thiscf FS lib] = ++order_n;
-  if (NF > 2) {
-    $1 = $2 = "";
-    versions[thiscf FS lib] = $0
+  if (lib in numbers) next;
+  numbers[lib] = number;
+  order[lib] = ++order_n;
+  if (NF > 1) {
+    $1 = "";
+    versions[lib] = $0
   }
 }
 
 END {
-  for (elt in numbers) {
-    split(elt, x);
-    cf = x[1];
-    lib = x[2];
-    for (c in configs)
-      if (c ~ cf) {
-	if (elt in versions)
-	  set = versions[elt];
-	else {
-	  set = (c == config) ? default_setname : "";
-	  for (i = 1; i <= ndefault_set; ++i) {
-	    split(default_set[i], x, "\n");
-	    if (c ~ x[1]) {
-	      set = x[2];
-	      break;
-	    }
-	  }
-	}
-	line = set ? (lib FS numbers[elt] FS set) : (lib FS numbers[elt]);
-	if (!((c FS lib) in lineorder) || order[elt] < lineorder[c FS lib]) {
-	  lineorder[c FS lib] = order[elt];
-	  lines[c FS lib] = configs[c] FS line;
-	}
-      }
+  for (lib in numbers) {
+    if (lib in versions)
+      set = versions[lib];
+    else {
+      set = default_setname;
+      if (ndefault_set >= 1)
+	set = default_set[1];
+    }
+    line = set ? (lib FS numbers[lib] FS set) : (lib FS numbers[lib]);
+    if (!(lib in lineorder) || order[lib] < lineorder[lib]) {
+      lineorder[lib] = order[lib];
+      lines[lib] = "DEFAULT" FS line;
+    }
   }
   for (c in lines) {
     print lines[c]