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GNU C Library master sources branch siddhesh/posix-wundef created. glibc-2.19-926-geb30cb4


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The branch, siddhesh/posix-wundef has been created
        at  eb30cb4c7c280babd2233c5fc2e72f972f921b37 (commit)

- Log -----------------------------------------------------------------
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=eb30cb4c7c280babd2233c5fc2e72f972f921b37

commit eb30cb4c7c280babd2233c5fc2e72f972f921b37
Author: Siddhesh Poyarekar <siddhesh@redhat.com>
Date:   Thu Sep 4 02:21:46 2014 +0530

    Use conf.list to generate spec array

diff --git a/posix/conf.list b/posix/conf.list
index 07607b7..0a17666 100644
--- a/posix/conf.list
+++ b/posix/conf.list
@@ -104,7 +104,7 @@ SYSCONF:POSIX {
   RAW_SOCKETS
 }
 
-SPEC:XBS5 {
+SPEC:XBS5:_SC_XBS5 {
   ILP32_OFF32
   ILP32_OFFBIG
   LP64_OFF64
diff --git a/posix/confstr.c b/posix/confstr.c
index 1accfee..0400d7f 100644
--- a/posix/confstr.c
+++ b/posix/confstr.c
@@ -21,7 +21,9 @@
 #include <string.h>
 #include <confstr.h>
 #include "../version.h"
-#include "confdefs.h"
+
+#define NEED_SPEC_ARRAY 0
+#include <confdefs.h>
 
 /* If BUF is not NULL and LEN > 0, fill in at most LEN - 1 bytes
    of BUF with the value corresponding to NAME and zero-terminate BUF.
diff --git a/posix/getconf.c b/posix/getconf.c
index c2c0d3f..bb0679b 100644
--- a/posix/getconf.c
+++ b/posix/getconf.c
@@ -26,6 +26,9 @@
 #include "../version.h"
 #define PACKAGE _libc_intl_domainname
 
+#define NEED_SPEC_ARRAY 1
+#include <confdefs.h>
+
 struct conf
   {
     const char *name;
@@ -1015,23 +1018,6 @@ static const struct conf vars[] =
   };
 
 
-static const struct { const char *name; int num; } specs[] =
-  {
-    { "XBS5_ILP32_OFF32", _SC_XBS5_ILP32_OFF32 },
-    { "XBS5_ILP32_OFFBIG", _SC_XBS5_ILP32_OFFBIG },
-    { "XBS5_LP64_OFF64", _SC_XBS5_LP64_OFF64 },
-    { "XBS5_LPBIG_OFFBIG", _SC_XBS5_LPBIG_OFFBIG },
-    { "POSIX_V6_ILP32_OFF32", _SC_V6_ILP32_OFF32 },
-    { "POSIX_V6_ILP32_OFFBIG", _SC_V6_ILP32_OFFBIG },
-    { "POSIX_V6_LP64_OFF64", _SC_V6_LP64_OFF64 },
-    { "POSIX_V6_LPBIG_OFFBIG", _SC_V6_LPBIG_OFFBIG },
-    { "POSIX_V7_ILP32_OFF32", _SC_V7_ILP32_OFF32 },
-    { "POSIX_V7_ILP32_OFFBIG", _SC_V7_ILP32_OFFBIG },
-    { "POSIX_V7_LP64_OFF64", _SC_V7_LP64_OFF64 },
-    { "POSIX_V7_LPBIG_OFFBIG", _SC_V7_LPBIG_OFFBIG },
-  };
-static const int nspecs = sizeof (specs) / sizeof (specs[0]);
-
 extern const char *__progname;
 
 
diff --git a/posix/posix-envs.def b/posix/posix-envs.def
index 9047d0c..0b33e02 100644
--- a/posix/posix-envs.def
+++ b/posix/posix-envs.def
@@ -42,7 +42,8 @@
    defined.  These are called with arguments V5, V6, V7 before and
    after the relevant groups of environments.  */
 
-#include "confdefs.h"
+#define NEED_SPEC_ARRAY 0
+#include <confdefs.h>
 
 START_ENV_GROUP (V7)
 
diff --git a/scripts/gen-conf.awk b/scripts/gen-conf.awk
index 45a4d44..1370646 100644
--- a/scripts/gen-conf.awk
+++ b/scripts/gen-conf.awk
@@ -17,12 +17,17 @@ $2 == "{" {
   split ($1, arr, ":")
   type = arr[1]
   prefix = arr[2]
+  if (arr[3] != "")
+    sc_prefix = arr[3]
+  else
+    sc_prefix = "_SC"
   next
 }
 
 $1 == "}" {
   prefix = ""
   type = ""
+  sc_prefix = ""
   next
 }
 
@@ -37,6 +42,7 @@ $1 == "}" {
   # CONFSTR: A configuration string
   # SYSCONF: A numeric value
   # SPEC: A specification
+  sc_prefixes[prefix][$1] = sc_prefix
   conf[prefix][$1] = type
 }
 
@@ -58,6 +64,26 @@ ENDFILE {
 	printf "# endif\n"
       }
       printf "#endif\n\n"
+
+      # Build a name -> sysconf number associative array to print a C array at
+      # the end.
+      if (conf[p][c] == "SPEC") {
+	name = sprintf ("%s_%s", p, c)
+	num = sprintf ("%s_%s", sc_prefixes[p][c], c)
+	spec[name] = num
+      }
     }
   }
+
+  # Print the specification array.  Define the macro NEED_SPEC_ARRAY before
+  # including confdefs.h to make it available in the compilation unit.
+  print "#if NEED_SPEC_ARRAY"
+  print "static const struct { const char *name; int num; } specs[] ="
+  print "  {"
+  for (s in spec) {
+    printf "    { \"%s\", %s },\n", s, spec[s]
+  }
+  print "  };"
+  print "static const int nspecs = sizeof (specs) / sizeof (specs[0]);"
+  print "#endif"
 }
diff --git a/sysdeps/posix/sysconf.c b/sysdeps/posix/sysconf.c
index 16e668d..456297d 100644
--- a/sysdeps/posix/sysconf.c
+++ b/sysdeps/posix/sysconf.c
@@ -31,6 +31,7 @@
 #include <sys/types.h>
 #include <regex.h>
 
+#define NEED_SPEC_ARRAY 0
 #include <confdefs.h>
 
 

http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=0baa03f6e0f475850731fe7fbce0d41b81237cde

commit 0baa03f6e0f475850731fe7fbce0d41b81237cde
Author: Siddhesh Poyarekar <siddhesh@redhat.com>
Date:   Thu Sep 4 00:41:49 2014 +0530

    Add correct variable names for _POSIX_IPV6 and _POSIX_RAW_SOCKETS
    
    getconf only recognizes IPV6 and RAW_SOCKETS, when the standard
    requires it to recognize the actual configuration variable name.

diff --git a/posix/getconf.c b/posix/getconf.c
index db6acc4..c2c0d3f 100644
--- a/posix/getconf.c
+++ b/posix/getconf.c
@@ -1004,6 +1004,13 @@ static const struct conf vars[] =
     { "RAW_SOCKETS", _SC_RAW_SOCKETS, SYSCONF },
 #endif
 
+#ifdef _SC_IPV6
+    { "_POSIX_IPV6", _SC_IPV6, SYSCONF },
+#endif
+#ifdef _SC_RAW_SOCKETS
+    { "_POSIX_RAW_SOCKETS", _SC_RAW_SOCKETS, SYSCONF },
+#endif
+
     { NULL, 0, SYSCONF }
   };
 

http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=bf7406090b9c93cf26e4cc51754fecfc81fdae26

commit bf7406090b9c93cf26e4cc51754fecfc81fdae26
Author: Siddhesh Poyarekar <siddhesh@redhat.com>
Date:   Thu Sep 4 00:40:26 2014 +0530

    remove from conf.list

diff --git a/posix/conf.list b/posix/conf.list
index 6c870af..07607b7 100644
--- a/posix/conf.list
+++ b/posix/conf.list
@@ -100,7 +100,6 @@ SYSCONF:POSIX {
   USER_GROUPS_R
   VERSION
 # Additional variables not in getconf.
-  THREAD_DESTRUCTOR_ITERATIONS
   IPV6
   RAW_SOCKETS
 }

http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=997869698e69ba213ae81c380174eba94b721904

commit 997869698e69ba213ae81c380174eba94b721904
Author: Siddhesh Poyarekar <siddhesh@redhat.com>
Date:   Thu Sep 4 00:39:50 2014 +0530

    Use PTHREAD_DESTRUCTOR_ITERATIONS
    
    The _POSIX_THREAD_DESTRUCTOR_ITERATIONS variable is not implemented by
    getconf, so to get both getconf and sysconf on the same page, make the
    latter use PTHREAD_DESTRUCTOR_ITERATIONS.

diff --git a/sysdeps/posix/sysconf.c b/sysdeps/posix/sysconf.c
index 6db9409..16e668d 100644
--- a/sysdeps/posix/sysconf.c
+++ b/sysdeps/posix/sysconf.c
@@ -555,8 +555,8 @@ __sysconf (name)
 #endif
 
     case _SC_THREAD_DESTRUCTOR_ITERATIONS:
-#if CONF_IS_DEFINED_SET (_POSIX_THREAD_DESTRUCTOR_ITERATIONS)
-      return _POSIX_THREAD_DESTRUCTOR_ITERATIONS;
+#if PTHREAD_DESTRUCTOR_ITERATIONS
+      return PTHREAD_DESTRUCTOR_ITERATIONS;
 #else
       return -1;
 #endif

http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=888cf35aa14174dbea7f4d877849075818d070f3

commit 888cf35aa14174dbea7f4d877849075818d070f3
Author: Siddhesh Poyarekar <siddhesh@redhat.com>
Date:   Thu Sep 4 02:17:46 2014 +0530

    Add _POSIX namespace SYSCONF macros to conf.list
    
    This fixes the remaining -Wundef warnings.

diff --git a/posix/conf.list b/posix/conf.list
index d048568..6c870af 100644
--- a/posix/conf.list
+++ b/posix/conf.list
@@ -15,6 +15,96 @@ SPEC:POSIX {
   V7_LPBIG_OFFBIG
 }
 
+SYSCONF:POSIX {
+  ADVISORY_INFO
+  ARG_MAX
+  ASYNCHRONOUS_IO
+  BARRIERS
+  BASE
+  CHILD_MAX
+  C_LANG_SUPPORT
+  C_LANG_SUPPORT_R
+  CLOCK_SELECTION
+  CPUTIME
+  DEVICE_IO
+  DEVICE_SPECIFIC
+  DEVICE_SPECIFIC_R
+  FD_MGMT
+  FIFO
+  FILE_ATTRIBUTES
+  FILE_LOCKING
+  FILE_SYSTEM
+  FSYNC
+  JOB_CONTROL
+  MAPPED_FILES
+  MEMLOCK
+  MEMLOCK_RANGE
+  MEMORY_PROTECTION
+  MESSAGE_PASSING
+  MONOTONIC_CLOCK
+  MULTI_PROCESS
+  NETWORKING
+  NGROUPS_MAX
+  OPEN_MAX
+  PII
+  PII_INTERNET
+  PII_INTERNET_DGRAM
+  PII_INTERNET_STREAM
+  PII_OSI
+  PII_OSI_CLTS
+  PII_OSI_COTS
+  PII_OSI_M
+  PII_SOCKET
+  PII_XTI
+  PIPE
+  POLL
+  PRIORITIZED_IO
+  PRIORITY_SCHEDULING
+  READER_WRITER_LOCKS
+  REALTIME_SIGNALS
+  REGEXP
+  SAVED_IDS
+  SELECT
+  SEMAPHORES
+  SHARED_MEMORY_OBJECTS
+  SHELL
+  SIGNALS
+  SINGLE_PROCESS
+  SPAWN
+  SPIN_LOCKS
+  SPORADIC_SERVER
+  SSIZE_MAX
+  STREAM_MAX
+  SYNCHRONIZED_IO
+  SYSTEM_DATABASE
+  SYSTEM_DATABASE_R
+  THREAD_ATTR_STACKADDR
+  THREAD_ATTR_STACKSIZE
+  THREAD_CPUTIME
+  THREAD_PRIO_INHERIT
+  THREAD_PRIO_PROTECT
+  THREAD_PRIORITY_SCHEDULING
+  THREAD_PROCESS_SHARED
+  THREADS
+  THREAD_SAFE_FUNCTIONS
+  THREAD_SPORADIC_SERVER
+  TIMEOUTS
+  TIMERS
+  TRACE
+  TRACE_EVENT_FILTER
+  TRACE_INHERIT
+  TRACE_LOG
+  TYPED_MEMORY_OBJECTS
+  TZNAME_MAX
+  USER_GROUPS
+  USER_GROUPS_R
+  VERSION
+# Additional variables not in getconf.
+  THREAD_DESTRUCTOR_ITERATIONS
+  IPV6
+  RAW_SOCKETS
+}
+
 SPEC:XBS5 {
   ILP32_OFF32
   ILP32_OFFBIG
diff --git a/sysdeps/posix/sysconf.c b/sysdeps/posix/sysconf.c
index 644f514..6db9409 100644
--- a/sysdeps/posix/sysconf.c
+++ b/sysdeps/posix/sysconf.c
@@ -31,6 +31,8 @@
 #include <sys/types.h>
 #include <regex.h>
 
+#include <confdefs.h>
+
 
 #define NEED_CHECK_SPEC \
   (!defined _XBS5_ILP32_OFF32 || !defined _XBS5_ILP32_OFFBIG \
@@ -95,112 +97,112 @@ __sysconf (name)
       return MAX (__tzname_max (), _POSIX_TZNAME_MAX);
 
     case _SC_JOB_CONTROL:
-#if _POSIX_JOB_CONTROL > 0
+#if CONF_IS_DEFINED_SET (_POSIX_JOB_CONTROL)
       return _POSIX_JOB_CONTROL;
 #else
       return -1;
 #endif
 
     case _SC_SAVED_IDS:
-#if _POSIX_SAVED_IDS > 0
+#if CONF_IS_DEFINED_SET (_POSIX_SAVED_IDS)
       return 1;
 #else
       return -1;
 #endif
 
     case _SC_REALTIME_SIGNALS:
-#if _POSIX_REALTIME_SIGNALS > 0
+#if CONF_IS_DEFINED_SET (_POSIX_REALTIME_SIGNALS)
       return _POSIX_REALTIME_SIGNALS;
 #else
       return -1;
 #endif
 
     case _SC_PRIORITY_SCHEDULING:
-#if _POSIX_PRIORITY_SCHEDULING > 0
+#if CONF_IS_DEFINED_SET (_POSIX_PRIORITY_SCHEDULING)
       return _POSIX_PRIORITY_SCHEDULING;
 #else
       return -1;
 #endif
 
     case _SC_TIMERS:
-#if _POSIX_TIMERS > 0
+#if CONF_IS_DEFINED_SET (_POSIX_TIMERS)
       return _POSIX_TIMERS;
 #else
       return -1;
 #endif
 
     case _SC_ASYNCHRONOUS_IO:
-#if _POSIX_ASYNCHRONOUS_IO > 0
+#if CONF_IS_DEFINED_SET (_POSIX_ASYNCHRONOUS_IO)
       return _POSIX_ASYNCHRONOUS_IO;
 #else
       return -1;
 #endif
 
     case _SC_PRIORITIZED_IO:
-#if _POSIX_PRIORITIZED_IO > 0
+#if CONF_IS_DEFINED_SET (_POSIX_PRIORITIZED_IO)
       return _POSIX_PRIORITIZED_IO;
 #else
       return -1;
 #endif
 
     case _SC_SYNCHRONIZED_IO:
-#if _POSIX_SYNCHRONIZED_IO > 0
+#if CONF_IS_DEFINED_SET (_POSIX_SYNCHRONIZED_IO)
       return _POSIX_SYNCHRONIZED_IO;
 #else
       return -1;
 #endif
 
     case _SC_FSYNC:
-#if _POSIX_FSYNC > 0
+#if CONF_IS_DEFINED_SET (_POSIX_FSYNC)
       return _POSIX_FSYNC;
 #else
       return -1;
 #endif
 
     case _SC_MAPPED_FILES:
-#if _POSIX_MAPPED_FILES > 0
+#if CONF_IS_DEFINED_SET (_POSIX_MAPPED_FILES)
       return _POSIX_MAPPED_FILES;
 #else
       return -1;
 #endif
 
     case _SC_MEMLOCK:
-#if _POSIX_MEMLOCK > 0
+#if CONF_IS_DEFINED_SET (_POSIX_MEMLOCK)
       return _POSIX_MEMLOCK;
 #else
       return -1;
 #endif
 
     case _SC_MEMLOCK_RANGE:
-#if _POSIX_MEMLOCK_RANGE > 0
+#if CONF_IS_DEFINED_SET (_POSIX_MEMLOCK_RANGE)
       return _POSIX_MEMLOCK_RANGE;
 #else
       return -1;
 #endif
 
     case _SC_MEMORY_PROTECTION:
-#if _POSIX_MEMORY_PROTECTION > 0
+#if CONF_IS_DEFINED_SET (_POSIX_MEMORY_PROTECTION)
       return _POSIX_MEMORY_PROTECTION;
 #else
       return -1;
 #endif
 
     case _SC_MESSAGE_PASSING:
-#if _POSIX_MESSAGE_PASSING > 0
+#if CONF_IS_DEFINED_SET (_POSIX_MESSAGE_PASSING)
       return _POSIX_MESSAGE_PASSING;
 #else
       return -1;
 #endif
 
     case _SC_SEMAPHORES:
-#if _POSIX_SEMAPHORES > 0
+#if CONF_IS_DEFINED_SET (_POSIX_SEMAPHORES)
       return _POSIX_SEMAPHORES;
 #else
       return -1;
 #endif
 
     case _SC_SHARED_MEMORY_OBJECTS:
-#if _POSIX_SHARED_MEMORY_OBJECTS > 0
+#if CONF_IS_DEFINED_SET (_POSIX_SHARED_MEMORY_OBJECTS)
       return _POSIX_SHARED_MEMORY_OBJECTS;
 #else
       return -1;
@@ -353,49 +355,49 @@ __sysconf (name)
 #endif
 
     case _SC_PII:
-#if _POSIX_PII > 0
+#if CONF_IS_DEFINED_SET (_POSIX_PII)
       return 1;
 #else
       return -1;
 #endif
 
     case _SC_PII_XTI:
-#if _POSIX_PII_XTI > 0
+#if CONF_IS_DEFINED_SET (_POSIX_PII_XTI)
       return 1;
 #else
       return -1;
 #endif
 
     case _SC_PII_SOCKET:
-#if _POSIX_PII_SOCKET > 0
+#if CONF_IS_DEFINED_SET (_POSIX_PII_SOCKET)
       return 1;
 #else
       return -1;
 #endif
 
     case _SC_PII_INTERNET:
-#if _POSIX_PII_INTERNET > 0
+#if CONF_IS_DEFINED_SET (_POSIX_PII_INTERNET)
       return 1;
 #else
       return -1;
 #endif
 
     case _SC_PII_OSI:
-#if _POSIX_PII_OSI > 0
+#if CONF_IS_DEFINED_SET (_POSIX_PII_OSI)
       return 1;
 #else
       return -1;
 #endif
 
     case _SC_POLL:
-#if _POSIX_POLL > 0
+#if CONF_IS_DEFINED_SET (_POSIX_POLL)
       return 1;
 #else
       return -1;
 #endif
 
     case _SC_SELECT:
-#if _POSIX_SELECT > 0
+#if CONF_IS_DEFINED_SET (_POSIX_SELECT)
       return 1;
 #else
       return -1;
@@ -410,35 +412,35 @@ __sysconf (name)
 #endif
 
     case _SC_PII_INTERNET_STREAM:
-#if _POSIX_PII_INTERNET_STREAM > 0
+#if CONF_IS_DEFINED_SET (_POSIX_PII_INTERNET_STREAM)
       return 1;
 #else
       return -1;
 #endif
 
     case _SC_PII_INTERNET_DGRAM:
-#if _POSIX_PII_INTERNET_DGRAM > 0
+#if CONF_IS_DEFINED_SET (_POSIX_PII_INTERNET_DGRAM)
       return 1;
 #else
       return -1;
 #endif
 
     case _SC_PII_OSI_COTS:
-#if _POSIX_PII_OSI_COTS > 0
+#if CONF_IS_DEFINED_SET (_POSIX_PII_OSI_COTS)
       return 1;
 #else
       return -1;
 #endif
 
     case _SC_PII_OSI_CLTS:
-#if _POSIX_PII_OSI_CLTS > 0
+#if CONF_IS_DEFINED_SET (_POSIX_PII_OSI_CLTS)
       return 1;
 #else
       return -1;
 #endif
 
     case _SC_PII_OSI_M:
-#if _POSIX_PII_OSI_M > 0
+#if CONF_IS_DEFINED_SET (_POSIX_PII_OSI_M)
       return 1;
 #else
       return -1;
@@ -519,14 +521,14 @@ __sysconf (name)
 
       /* POSIX 1003.1c (POSIX Threads).  */
     case _SC_THREADS:
-#if _POSIX_THREADS > 0
+#if CONF_IS_DEFINED_SET (_POSIX_THREADS)
       return _POSIX_THREADS;
 #else
       return -1;
 #endif
 
     case _SC_THREAD_SAFE_FUNCTIONS:
-#if _POSIX_THREAD_SAFE_FUNCTIONS > 0
+#if CONF_IS_DEFINED_SET (_POSIX_THREAD_SAFE_FUNCTIONS)
       return _POSIX_THREAD_SAFE_FUNCTIONS;
 #else
       return -1;
@@ -553,7 +555,7 @@ __sysconf (name)
 #endif
 
     case _SC_THREAD_DESTRUCTOR_ITERATIONS:
-#if _POSIX_THREAD_DESTRUCTOR_ITERATIONS > 0
+#if CONF_IS_DEFINED_SET (_POSIX_THREAD_DESTRUCTOR_ITERATIONS)
       return _POSIX_THREAD_DESTRUCTOR_ITERATIONS;
 #else
       return -1;
@@ -581,42 +583,42 @@ __sysconf (name)
 #endif
 
     case _SC_THREAD_ATTR_STACKADDR:
-#if _POSIX_THREAD_ATTR_STACKADDR > 0
+#if CONF_IS_DEFINED_SET (_POSIX_THREAD_ATTR_STACKADDR)
       return _POSIX_THREAD_ATTR_STACKADDR;
 #else
       return -1;
 #endif
 
     case _SC_THREAD_ATTR_STACKSIZE:
-#if _POSIX_THREAD_ATTR_STACKSIZE > 0
+#if CONF_IS_DEFINED_SET (_POSIX_THREAD_ATTR_STACKSIZE)
       return _POSIX_THREAD_ATTR_STACKSIZE;
 #else
       return -1;
 #endif
 
     case _SC_THREAD_PRIORITY_SCHEDULING:
-#if _POSIX_THREAD_PRIORITY_SCHEDULING > 0
+#if CONF_IS_DEFINED_SET (_POSIX_THREAD_PRIORITY_SCHEDULING)
       return _POSIX_THREAD_PRIORITY_SCHEDULING;
 #else
       return -1;
 #endif
 
     case _SC_THREAD_PRIO_INHERIT:
-#if _POSIX_THREAD_PRIO_INHERIT > 0
+#if CONF_IS_DEFINED_SET (_POSIX_THREAD_PRIO_INHERIT)
       return _POSIX_THREAD_PRIO_INHERIT;
 #else
       return -1;
 #endif
 
     case _SC_THREAD_PRIO_PROTECT:
-#if _POSIX_THREAD_PRIO_PROTECT > 0
+#if CONF_IS_DEFINED_SET (_POSIX_THREAD_PRIO_PROTECT)
       return _POSIX_THREAD_PRIO_PROTECT;
 #else
       return -1;
 #endif
 
     case _SC_THREAD_PROCESS_SHARED:
-#if _POSIX_THREAD_PROCESS_SHARED > 0
+#if CONF_IS_DEFINED_SET (_POSIX_THREAD_PROCESS_SHARED)
       return _POSIX_THREAD_PROCESS_SHARED;
 #else
       return -1;
@@ -833,152 +835,152 @@ __sysconf (name)
 #endif
 
     case _SC_ADVISORY_INFO:
-#if _POSIX_ADVISORY_INFO > 0
+#if CONF_IS_DEFINED_SET (_POSIX_ADVISORY_INFO)
       return _POSIX_ADVISORY_INFO;
 #else
       return -1;
 #endif
 
     case _SC_BARRIERS:
-#if _POSIX_BARRIERS > 0
+#if CONF_IS_DEFINED_SET (_POSIX_BARRIERS)
       return _POSIX_BARRIERS;
 #else
       return -1;
 #endif
 
     case _SC_BASE:
-#if _POSIX_BASE > 0
+#if CONF_IS_DEFINED_SET (_POSIX_BASE)
       return _POSIX_BASE;
 #else
       return -1;
 #endif
     case _SC_C_LANG_SUPPORT:
-#if _POSIX_C_LANG_SUPPORT > 0
+#if CONF_IS_DEFINED_SET (_POSIX_C_LANG_SUPPORT)
       return _POSIX_C_LANG_SUPPORT;
 #else
       return -1;
 #endif
     case _SC_C_LANG_SUPPORT_R:
-#if _POSIX_C_LANG_SUPPORT_R > 0
+#if CONF_IS_DEFINED_SET (_POSIX_C_LANG_SUPPORT_R)
       return _POSIX_C_LANG_SUPPORT_R;
 #else
       return -1;
 #endif
 
     case _SC_CLOCK_SELECTION:
-#if _POSIX_CLOCK_SELECTION > 0
+#if CONF_IS_DEFINED_SET (_POSIX_CLOCK_SELECTION)
       return _POSIX_CLOCK_SELECTION;
 #else
       return -1;
 #endif
 
     case _SC_CPUTIME:
-#if _POSIX_CPUTIME > 0
+#if CONF_IS_DEFINED_SET (_POSIX_CPUTIME)
       return _POSIX_CPUTIME;
 #else
       return -1;
 #endif
 
     case _SC_DEVICE_IO:
-#if _POSIX_DEVICE_IO > 0
+#if CONF_IS_DEFINED_SET (_POSIX_DEVICE_IO)
       return _POSIX_DEVICE_IO;
 #else
       return -1;
 #endif
     case _SC_DEVICE_SPECIFIC:
-#if _POSIX_DEVICE_SPECIFIC > 0
+#if CONF_IS_DEFINED_SET (_POSIX_DEVICE_SPECIFIC)
       return _POSIX_DEVICE_SPECIFIC;
 #else
       return -1;
 #endif
     case _SC_DEVICE_SPECIFIC_R:
-#if _POSIX_DEVICE_SPECIFIC_R > 0
+#if CONF_IS_DEFINED_SET (_POSIX_DEVICE_SPECIFIC_R)
       return _POSIX_DEVICE_SPECIFIC_R;
 #else
       return -1;
 #endif
 
     case _SC_FD_MGMT:
-#if _POSIX_FD_MGMT > 0
+#if CONF_IS_DEFINED_SET (_POSIX_FD_MGMT)
       return _POSIX_FD_MGMT;
 #else
       return -1;
 #endif
 
     case _SC_FIFO:
-#if _POSIX_FIFO > 0
+#if CONF_IS_DEFINED_SET (_POSIX_FIFO)
       return _POSIX_FIFO;
 #else
       return -1;
 #endif
     case _SC_PIPE:
-#if _POSIX_PIPE > 0
+#if CONF_IS_DEFINED_SET (_POSIX_PIPE)
       return _POSIX_PIPE;
 #else
       return -1;
 #endif
 
     case _SC_FILE_ATTRIBUTES:
-#if _POSIX_FILE_ATTRIBUTES > 0
+#if CONF_IS_DEFINED_SET (_POSIX_FILE_ATTRIBUTES)
       return _POSIX_FILE_ATTRIBUTES;
 #else
       return -1;
 #endif
     case _SC_FILE_LOCKING:
-#if _POSIX_FILE_LOCKING > 0
+#if CONF_IS_DEFINED_SET (_POSIX_FILE_LOCKING)
       return _POSIX_FILE_LOCKING;
 #else
       return -1;
 #endif
     case _SC_FILE_SYSTEM:
-#if _POSIX_FILE_SYSTEM > 0
+#if CONF_IS_DEFINED_SET (_POSIX_FILE_SYSTEM)
       return _POSIX_FILE_SYSTEM;
 #else
       return -1;
 #endif
 
     case _SC_MONOTONIC_CLOCK:
-#if _POSIX_MONOTONIC_CLOCK
+#if CONF_IS_DEFINED_SET (_POSIX_MONOTONIC_CLOCK)
       return _POSIX_MONOTONIC_CLOCK;
 #else
       return -1;
 #endif
 
     case _SC_MULTI_PROCESS:
-#if _POSIX_MULTI_PROCESS > 0
+#if CONF_IS_DEFINED_SET (_POSIX_MULTI_PROCESS)
       return _POSIX_MULTI_PROCESS;
 #else
       return -1;
 #endif
     case _SC_SINGLE_PROCESS:
-#if _POSIX_SINGLE_PROCESS > 0
+#if CONF_IS_DEFINED_SET (_POSIX_SINGLE_PROCESS)
       return _POSIX_SINGLE_PROCESS;
 #else
       return -1;
 #endif
 
     case _SC_NETWORKING:
-#if _POSIX_NETWORKING > 0
+#if CONF_IS_DEFINED_SET (_POSIX_NETWORKING)
       return _POSIX_NETWORKING;
 #else
       return -1;
 #endif
 
     case _SC_READER_WRITER_LOCKS:
-#if _POSIX_READER_WRITER_LOCKS > 0
+#if CONF_IS_DEFINED_SET (_POSIX_READER_WRITER_LOCKS)
       return _POSIX_READER_WRITER_LOCKS;
 #else
       return -1;
 #endif
     case _SC_SPIN_LOCKS:
-#if _POSIX_SPIN_LOCKS > 0
+#if CONF_IS_DEFINED_SET (_POSIX_SPIN_LOCKS)
       return _POSIX_SPIN_LOCKS;
 #else
       return -1;
 #endif
 
     case _SC_REGEXP:
-#if _POSIX_REGEXP > 0
+#if CONF_IS_DEFINED_SET (_POSIX_REGEXP)
       return _POSIX_REGEXP;
 #else
       return -1;
@@ -991,81 +993,81 @@ __sysconf (name)
 #endif
 
     case _SC_SHELL:
-#if _POSIX_SHELL > 0
+#if CONF_IS_DEFINED_SET (_POSIX_SHELL)
       return _POSIX_SHELL;
 #else
       return -1;
 #endif
 
     case _SC_SIGNALS:
-#ifdef _POSIX_SIGNALS
+#if CONF_IS_DEFINED (_POSIX_SIGNALS)
       return _POSIX_SIGNALS;
 #else
       return -1;
 #endif
 
     case _SC_SPAWN:
-#if _POSIX_SPAWN > 0
+#if CONF_IS_DEFINED_SET (_POSIX_SPAWN)
       return _POSIX_SPAWN;
 #else
       return -1;
 #endif
 
     case _SC_SPORADIC_SERVER:
-#if _POSIX_SPORADIC_SERVER > 0
+#if CONF_IS_DEFINED_SET (_POSIX_SPORADIC_SERVER)
       return _POSIX_SPORADIC_SERVER;
 #else
       return -1;
 #endif
     case _SC_THREAD_SPORADIC_SERVER:
-#if _POSIX_THREAD_SPORADIC_SERVER > 0
+#if CONF_IS_DEFINED_SET (_POSIX_THREAD_SPORADIC_SERVER)
       return _POSIX_THREAD_SPORADIC_SERVER;
 #else
       return -1;
 #endif
 
     case _SC_SYSTEM_DATABASE:
-#if _POSIX_SYSTEM_DATABASE > 0
+#if CONF_IS_DEFINED_SET (_POSIX_SYSTEM_DATABASE)
       return _POSIX_SYSTEM_DATABASE;
 #else
       return -1;
 #endif
     case _SC_SYSTEM_DATABASE_R:
-#if _POSIX_SYSTEM_DATABASE_R > 0
+#if CONF_IS_DEFINED_SET (_POSIX_SYSTEM_DATABASE_R)
       return _POSIX_SYSTEM_DATABASE_R;
 #else
       return -1;
 #endif
 
     case _SC_THREAD_CPUTIME:
-#if _POSIX_THREAD_CPUTIME > 0
+#if CONF_IS_DEFINED_SET (_POSIX_THREAD_CPUTIME)
       return _POSIX_THREAD_CPUTIME;
 #else
       return -1;
 #endif
 
     case _SC_TIMEOUTS:
-#if _POSIX_TIMEOUTS > 0
+#if CONF_IS_DEFINED_SET (_POSIX_TIMEOUTS)
       return _POSIX_TIMEOUTS;
 #else
       return -1;
 #endif
 
     case _SC_TYPED_MEMORY_OBJECTS:
-#if _POSIX_TYPED_MEMORY_OBJECTS > 0
+#if CONF_IS_DEFINED_SET (_POSIX_TYPED_MEMORY_OBJECTS)
       return _POSIX_TYPED_MEMORY_OBJECTS;
 #else
       return -1;
 #endif
 
     case _SC_USER_GROUPS:
-#if _POSIX_USER_GROUPS > 0
+#if CONF_IS_DEFINED_SET (_POSIX_USER_GROUPS)
       return _POSIX_USER_GROUPS;
 #else
       return -1;
 #endif
     case _SC_USER_GROUPS_R:
-#if _POSIX_USER_GROUPS_R > 0
+#if CONF_IS_DEFINED_SET (_POSIX_USER_GROUPS_R)
       return _POSIX_USER_GROUPS_R;
 #else
       return -1;
@@ -1130,25 +1132,25 @@ __sysconf (name)
 #endif
 
     case _SC_TRACE:
-#if _POSIX_TRACE > 0
+#if CONF_IS_DEFINED_SET (_POSIX_TRACE)
       return _POSIX_TRACE;
 #else
       return -1;
 #endif
     case _SC_TRACE_EVENT_FILTER:
-#if _POSIX_TRACE_EVENT_FILTER > 0
+#if CONF_IS_DEFINED_SET (_POSIX_TRACE_EVENT_FILTER)
       return _POSIX_TRACE_EVENT_FILTER;
 #else
       return -1;
 #endif
     case _SC_TRACE_INHERIT:
-#if _POSIX_TRACE_INHERIT > 0
+#if CONF_IS_DEFINED_SET (_POSIX_TRACE_INHERIT)
       return _POSIX_TRACE_INHERIT;
 #else
       return -1;
 #endif
     case _SC_TRACE_LOG:
-#if _POSIX_TRACE_LOG > 0
+#if CONF_IS_DEFINED_SET (_POSIX_TRACE_LOG)
       return _POSIX_TRACE_LOG;
 #else
       return -1;
@@ -1185,14 +1187,14 @@ __sysconf (name)
       return 0;
 
     case _SC_IPV6:
-#if _POSIX_IPV6 > 0
+#if CONF_IS_DEFINED_SET (_POSIX_IPV6)
       return _POSIX_IPV6;
 #else
       return -1;
 #endif
 
     case _SC_RAW_SOCKETS:
-#if _POSIX_RAW_SOCKETS > 0
+#if CONF_IS_DEFINED_SET (_POSIX_RAW_SOCKETS)
       return _POSIX_RAW_SOCKETS;
 #else
       return -1;

http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=5eb365e53028a7affaaeab01d0adc0c9d7f30d50

commit 5eb365e53028a7affaaeab01d0adc0c9d7f30d50
Author: Siddhesh Poyarekar <siddhesh@redhat.com>
Date:   Thu Sep 4 00:12:02 2014 +0530

    Fix typo in _REGEX_VERSION name
    
    There is no _POSIX_REGEX_VERSION, so don't check for it.  Instead
    check for what actually exists, which is _REGEX_VERSION.

diff --git a/sysdeps/posix/sysconf.c b/sysdeps/posix/sysconf.c
index cd2fb5a..644f514 100644
--- a/sysdeps/posix/sysconf.c
+++ b/sysdeps/posix/sysconf.c
@@ -984,8 +984,8 @@ __sysconf (name)
       return -1;
 #endif
     case _SC_REGEX_VERSION:
-#if _POSIX_REGEX_VERSION > 0
-      return _POSIX_REGEX_VERSION;
+#ifdef _REGEX_VERSION
+      return _REGEX_VERSION;
 #else
       return -1;
 #endif

http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=68e09e183f695bf094631425030df29fe4978812

commit 68e09e183f695bf094631425030df29fe4978812
Author: Siddhesh Poyarekar <siddhesh@redhat.com>
Date:   Wed Sep 3 23:55:18 2014 +0530

    Fix typo in macro names in sysconf.c
    
    Spell _POSIX_DEVICE_SPECIFIC and _POSIX_DEVICE_SPECIFIC_R correctly.

diff --git a/sysdeps/posix/sysconf.c b/sysdeps/posix/sysconf.c
index e940099..cd2fb5a 100644
--- a/sysdeps/posix/sysconf.c
+++ b/sysdeps/posix/sysconf.c
@@ -886,13 +886,13 @@ __sysconf (name)
       return -1;
 #endif
     case _SC_DEVICE_SPECIFIC:
-#if _POSIX_DEVICE_SPCIFIC > 0
+#if _POSIX_DEVICE_SPECIFIC > 0
       return _POSIX_DEVICE_SPECIFIC;
 #else
       return -1;
 #endif
     case _SC_DEVICE_SPECIFIC_R:
-#if _POSIX_DEVICE_SPCIFIC_R > 0
+#if _POSIX_DEVICE_SPECIFIC_R > 0
       return _POSIX_DEVICE_SPECIFIC_R;
 #else
       return -1;

http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=1bb812b2ebd64673bf8ff96a44d46896859ceb1a

commit 1bb812b2ebd64673bf8ff96a44d46896859ceb1a
Author: Siddhesh Poyarekar <siddhesh@redhat.com>
Date:   Thu Sep 4 02:36:44 2014 +0530

    Add comments to various files

diff --git a/posix/conf.list b/posix/conf.list
index a7afc7c..d048568 100644
--- a/posix/conf.list
+++ b/posix/conf.list
@@ -1,3 +1,9 @@
+# Configuration variables identified by getconf.  The heading of each section
+# is of the format TYPE:PREFIX:SC_PREFIX with the opening curly brace on the
+# same line.  TYPE can either be SYSCONF, PATHCONF, CONFSTR or SPEC.  In the
+# absence of SC_PREFIX, _SC is used as the SC_PREFIX.  Variable names are put
+# one on each line with a curly brace on its own line ending the section.
+
 SPEC:POSIX {
   V6_ILP32_OFF32
   V6_ILP32_OFFBIG
diff --git a/scripts/gen-conf.awk b/scripts/gen-conf.awk
index a68faf9..45a4d44 100644
--- a/scripts/gen-conf.awk
+++ b/scripts/gen-conf.awk
@@ -1,3 +1,8 @@
+# Generate confdefs-defs.h with definitions for {CONF}_DEF for each
+# configuration variable that getconf or sysconf may use.  Currently it is
+# equipped only to generate such macros for specification macros and for
+# SYSCONF macros in the _POSIX namespace.
+
 BEGIN {
   PROCINFO["sorted_in"] = "@val_type_asc"
   prefix = ""

http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=8783c1b41a0d1bacbf36e239d21c924b1996d72a

commit 8783c1b41a0d1bacbf36e239d21c924b1996d72a
Author: Siddhesh Poyarekar <siddhesh@redhat.com>
Date:   Thu Sep 4 02:15:08 2014 +0530

    Remove Wundef warnings for specification macros
    
    This patch adds a file conf.list that is used to generate macros to
    determine if a macro is defined as set, unset or not defined.
    gen-conf.awk processes this file and generates a header
    (confdefs-defs.h) with these macros.  A new header confdefs.h includes
    this generated header and defines accessor macros for the generated
    macros.

diff --git a/posix/Makefile b/posix/Makefile
index e6b69b4..abadc5a 100644
--- a/posix/Makefile
+++ b/posix/Makefile
@@ -99,7 +99,7 @@ others		:= getconf
 install-bin	:= getconf
 install-others-programs	:= $(inst_libexecdir)/getconf
 
-before-compile	+= testcases.h ptestcases.h
+before-compile	+= testcases.h ptestcases.h confdefs-defs.h
 
 # So they get cleaned up.
 generated += $(addprefix wordexp-test-result, 1 2 3 4 5 6 7 8 9 10) \
@@ -325,3 +325,8 @@ $(objpfx)getconf.speclist: getconf-speclist.c posix-envs.def
 # be built both makes it available for eyeball inspection and avoids the
 # surprise of things that look like compilation being done by 'make install'.
 others: $(objpfx)getconf.speclist
+
+$(objpfx)confdefs-defs.h: conf.list Makefile
+	$(make-target-directory)
+	$(AWK) -f $(..)scripts/gen-conf.awk $< > $@.tmp
+	mv -f $@.tmp $@
diff --git a/posix/conf.list b/posix/conf.list
new file mode 100644
index 0000000..a7afc7c
--- /dev/null
+++ b/posix/conf.list
@@ -0,0 +1,17 @@
+SPEC:POSIX {
+  V6_ILP32_OFF32
+  V6_ILP32_OFFBIG
+  V6_LP64_OFF64
+  V6_LPBIG_OFFBIG
+  V7_ILP32_OFF32
+  V7_ILP32_OFFBIG
+  V7_LP64_OFF64
+  V7_LPBIG_OFFBIG
+}
+
+SPEC:XBS5 {
+  ILP32_OFF32
+  ILP32_OFFBIG
+  LP64_OFF64
+  LPBIG_OFFBIG
+}
diff --git a/posix/confdefs.h b/posix/confdefs.h
new file mode 100644
index 0000000..64f0e03
--- /dev/null
+++ b/posix/confdefs.h
@@ -0,0 +1,15 @@
+#ifndef __CONFDEFS_H__
+#define __CONFDEFS_H__
+
+#include <posix/confdefs-defs.h>
+
+#define CONF_DEF_UNDEFINED 1
+#define CONF_DEF_DEFINED_SET 2
+#define CONF_DEF_DEFINED_UNSET 3
+
+#define CONF_IS_DEFINED_SET(conf) (conf##_DEF == CONF_DEF_DEFINED_SET)
+#define CONF_IS_DEFINED_UNSET(conf) (conf##_DEF == CONF_DEF_DEFINED_UNSET)
+#define CONF_IS_UNDEFINED(conf) (conf##_DEF == CONF_DEF_UNDEFINED)
+#define CONF_IS_DEFINED(conf) (conf##_DEF != CONF_DEF_UNDEFINED)
+
+#endif
diff --git a/posix/confstr.c b/posix/confstr.c
index a2a1bf2..1accfee 100644
--- a/posix/confstr.c
+++ b/posix/confstr.c
@@ -21,6 +21,7 @@
 #include <string.h>
 #include <confstr.h>
 #include "../version.h"
+#include "confdefs.h"
 
 /* If BUF is not NULL and LEN > 0, fill in at most LEN - 1 bytes
    of BUF with the value corresponding to NAME and zero-terminate BUF.
@@ -100,9 +101,9 @@ confstr (name, buf, len)
     case _CS_POSIX_V6_ILP32_OFF32_CFLAGS:
     case _CS_POSIX_V7_ILP32_OFF32_CFLAGS:
 #ifdef __ILP32_OFF32_CFLAGS
-# if _POSIX_V7_ILP32_OFF32 == -1
+# if CONF_IS_DEFINED_UNSET (_POSIX_V7_ILP32_OFF32)
 #  error "__ILP32_OFF32_CFLAGS should not be defined"
-# elif !defined _POSIX_V7_ILP32_OFF32
+# elif CONF_IS_UNDEFINED (_POSIX_V7_ILP32_OFF32)
       if (__sysconf (_SC_V7_ILP32_OFF32) < 0)
 	break;
 # endif
@@ -115,9 +116,9 @@ confstr (name, buf, len)
     case _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS:
     case _CS_POSIX_V7_ILP32_OFFBIG_CFLAGS:
 #ifdef __ILP32_OFFBIG_CFLAGS
-# if _POSIX_V7_ILP32_OFFBIG == -1
+# if CONF_IS_DEFINED_UNSET (_POSIX_V7_ILP32_OFFBIG)
 #  error "__ILP32_OFFBIG_CFLAGS should not be defined"
-# elif !defined _POSIX_V7_ILP32_OFFBIG
+# elif CONF_IS_UNDEFINED (_POSIX_V7_ILP32_OFFBIG)
       if (__sysconf (_SC_V7_ILP32_OFFBIG) < 0)
 	break;
 # endif
@@ -130,9 +131,9 @@ confstr (name, buf, len)
     case _CS_POSIX_V6_LP64_OFF64_CFLAGS:
     case _CS_POSIX_V7_LP64_OFF64_CFLAGS:
 #ifdef __LP64_OFF64_CFLAGS
-# if _POSIX_V7_LP64_OFF64 == -1
+# if CONF_IS_DEFINED_UNSET (_POSIX_V7_LP64_OFF64)
 #  error "__LP64_OFF64_CFLAGS should not be defined"
-# elif !defined _POSIX_V7_LP64_OFF64
+# elif CONF_IS_UNDEFINED (_POSIX_V7_LP64_OFF64)
       if (__sysconf (_SC_V7_LP64_OFF64) < 0)
 	break;
 # endif
@@ -145,9 +146,9 @@ confstr (name, buf, len)
     case _CS_POSIX_V6_ILP32_OFF32_LDFLAGS:
     case _CS_POSIX_V7_ILP32_OFF32_LDFLAGS:
 #ifdef __ILP32_OFF32_LDFLAGS
-# if _POSIX_V7_ILP32_OFF32 == -1
+# if CONF_IS_DEFINED_UNSET (_POSIX_V7_ILP32_OFF32 )
 #  error "__ILP32_OFF32_LDFLAGS should not be defined"
-# elif !defined _POSIX_V7_ILP32_OFF32
+# elif CONF_IS_UNDEFINED (_POSIX_V7_ILP32_OFF32)
       if (__sysconf (_SC_V7_ILP32_OFF32) < 0)
 	break;
 # endif
@@ -160,9 +161,9 @@ confstr (name, buf, len)
     case _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS:
     case _CS_POSIX_V7_ILP32_OFFBIG_LDFLAGS:
 #ifdef __ILP32_OFFBIG_LDFLAGS
-# if _POSIX_V7_ILP32_OFFBIG == -1
+# if CONF_IS_DEFINED_UNSET (_POSIX_V7_ILP32_OFFBIG)
 #  error "__ILP32_OFFBIG_LDFLAGS should not be defined"
-# elif !defined _POSIX_V7_ILP32_OFFBIG
+# elif CONF_IS_UNDEFINED (_POSIX_V7_ILP32_OFFBIG)
       if (__sysconf (_SC_V7_ILP32_OFFBIG) < 0)
 	break;
 # endif
@@ -175,9 +176,9 @@ confstr (name, buf, len)
     case _CS_POSIX_V6_LP64_OFF64_LDFLAGS:
     case _CS_POSIX_V7_LP64_OFF64_LDFLAGS:
 #ifdef __LP64_OFF64_LDFLAGS
-# if _POSIX_V7_LP64_OFF64 == -1
+# if CONF_IS_DEFINED_UNSET (_POSIX_V7_LP64_OFF64)
 #  error "__LP64_OFF64_LDFLAGS should not be defined"
-# elif !defined _POSIX_V7_LP64_OFF64
+# elif CONF_IS_UNDEFINED (_POSIX_V7_LP64_OFF64)
       if (__sysconf (_SC_V7_LP64_OFF64) < 0)
 	break;
 # endif
@@ -188,7 +189,8 @@ confstr (name, buf, len)
 
     case _CS_LFS_CFLAGS:
     case _CS_LFS_LINTFLAGS:
-#if _POSIX_V6_ILP32_OFF32 == 1 && _POSIX_V6_ILP32_OFFBIG == 1
+#if (CONF_IS_DEFINED_SET (_POSIX_V6_ILP32_OFF32) \
+     && CONF_IS_DEFINED_SET (_POSIX_V6_ILP32_OFFBIG))
 # define __LFS_CFLAGS "-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64"
       /* Signal that we want the new ABI.  */
       string = __LFS_CFLAGS;
diff --git a/posix/posix-envs.def b/posix/posix-envs.def
index 05043e9..9047d0c 100644
--- a/posix/posix-envs.def
+++ b/posix/posix-envs.def
@@ -42,35 +42,37 @@
    defined.  These are called with arguments V5, V6, V7 before and
    after the relevant groups of environments.  */
 
+#include "confdefs.h"
+
 START_ENV_GROUP (V7)
 
-#if _POSIX_V7_ILP32_OFF32 > 0
+#if CONF_IS_DEFINED_SET (_POSIX_V7_ILP32_OFF32)
 KNOWN_PRESENT_ENVIRONMENT (V7, POSIX_V7, ILP32_OFF32)
-#elif defined _POSIX_V7_ILP32_OFF32
+#elif CONF_IS_DEFINED (_POSIX_V7_ILP32_OFF32)
 KNOWN_ABSENT_ENVIRONMENT (V7, POSIX_V7, ILP32_OFF32)
 #else
 UNKNOWN_ENVIRONMENT (V7, POSIX_V7, ILP32_OFF32)
 #endif
 
-#if _POSIX_V7_ILP32_OFFBIG > 0
+#if CONF_IS_DEFINED_SET (_POSIX_V7_ILP32_OFFBIG)
 KNOWN_PRESENT_ENVIRONMENT (V7, POSIX_V7, ILP32_OFFBIG)
-#elif defined _POSIX_V7_ILP32_OFFBIG
+#elif CONF_IS_DEFINED (_POSIX_V7_ILP32_OFFBIG)
 KNOWN_ABSENT_ENVIRONMENT (V7, POSIX_V7, ILP32_OFFBIG)
 #else
 UNKNOWN_ENVIRONMENT (V7, POSIX_V7, ILP32_OFFBIG)
 #endif
 
-#if _POSIX_V7_LP64_OFF64 > 0
+#if CONF_IS_DEFINED_SET (_POSIX_V7_LP64_OFF64)
 KNOWN_PRESENT_ENVIRONMENT (V7, POSIX_V7, LP64_OFF64)
-#elif defined _POSIX_V7_LP64_OFF64
+#elif CONF_IS_DEFINED (_POSIX_V7_LP64_OFF64)
 KNOWN_ABSENT_ENVIRONMENT (V7, POSIX_V7, LP64_OFF64)
 #else
 UNKNOWN_ENVIRONMENT (V7, POSIX_V7, LP64_OFF64)
 #endif
 
-#if _POSIX_V7_LPBIG_OFFBIG > 0
+#if CONF_IS_DEFINED_SET (_POSIX_V7_LPBIG_OFFBIG)
 KNOWN_PRESENT_ENVIRONMENT (V7, POSIX_V7, LPBIG_OFFBIG)
-#elif defined _POSIX_V7_LPBIG_OFFBIG
+#elif CONF_IS_DEFINED (_POSIX_V7_LPBIG_OFFBIG)
 KNOWN_ABSENT_ENVIRONMENT (V7, POSIX_V7, LPBIG_OFFBIG)
 #else
 UNKNOWN_ENVIRONMENT (V7, POSIX_V7, LPBIG_OFFBIG)
@@ -80,33 +82,33 @@ END_ENV_GROUP (V7)
 
 START_ENV_GROUP (V6)
 
-#if _POSIX_V6_ILP32_OFF32 > 0
+#if CONF_IS_DEFINED_SET (_POSIX_V6_ILP32_OFF32)
 KNOWN_PRESENT_ENVIRONMENT (V6, POSIX_V6, ILP32_OFF32)
-#elif defined _POSIX_V6_ILP32_OFF32
+#elif CONF_IS_DEFINED (_POSIX_V6_ILP32_OFF32)
 KNOWN_ABSENT_ENVIRONMENT (V6, POSIX_V6, ILP32_OFF32)
 #else
 UNKNOWN_ENVIRONMENT (V6, POSIX_V6, ILP32_OFF32)
 #endif
 
-#if _POSIX_V6_ILP32_OFFBIG > 0
+#if CONF_IS_DEFINED_SET (_POSIX_V6_ILP32_OFFBIG)
 KNOWN_PRESENT_ENVIRONMENT (V6, POSIX_V6, ILP32_OFFBIG)
-#elif defined _POSIX_V6_ILP32_OFFBIG
+#elif CONF_IS_DEFINED (_POSIX_V6_ILP32_OFFBIG)
 KNOWN_ABSENT_ENVIRONMENT (V6, POSIX_V6, ILP32_OFFBIG)
 #else
 UNKNOWN_ENVIRONMENT (V6, POSIX_V6, ILP32_OFFBIG)
 #endif
 
-#if _POSIX_V6_LP64_OFF64 > 0
+#if CONF_IS_DEFINED_SET (_POSIX_V6_LP64_OFF64)
 KNOWN_PRESENT_ENVIRONMENT (V6, POSIX_V6, LP64_OFF64)
-#elif defined _POSIX_V6_LP64_OFF64
+#elif CONF_IS_DEFINED (_POSIX_V6_LP64_OFF64)
 KNOWN_ABSENT_ENVIRONMENT (V6, POSIX_V6, LP64_OFF64)
 #else
 UNKNOWN_ENVIRONMENT (V6, POSIX_V6, LP64_OFF64)
 #endif
 
-#if _POSIX_V6_LPBIG_OFFBIG > 0
+#if CONF_IS_DEFINED_SET (_POSIX_V6_LPBIG_OFFBIG)
 KNOWN_PRESENT_ENVIRONMENT (V6, POSIX_V6, LPBIG_OFFBIG)
-#elif defined _POSIX_V6_LPBIG_OFFBIG
+#elif CONF_IS_DEFINED (_POSIX_V6_LPBIG_OFFBIG)
 KNOWN_ABSENT_ENVIRONMENT (V6, POSIX_V6, LPBIG_OFFBIG)
 #else
 UNKNOWN_ENVIRONMENT (V6, POSIX_V6, LPBIG_OFFBIG)
@@ -116,33 +118,33 @@ END_ENV_GROUP (V6)
 
 START_ENV_GROUP (V5)
 
-#if _XBS5_ILP32_OFF32 > 0
+#if CONF_IS_DEFINED_SET (_XBS5_ILP32_OFF32)
 KNOWN_PRESENT_ENVIRONMENT (XBS5, XBS5, ILP32_OFF32)
-#elif defined _XBS5_ILP32_OFF32
+#elif CONF_IS_DEFINED (_XBS5_ILP32_OFF32)
 KNOWN_ABSENT_ENVIRONMENT (XBS5, XBS5, ILP32_OFF32)
 #else
 UNKNOWN_ENVIRONMENT (XBS5, XBS5, ILP32_OFF32)
 #endif
 
-#if _XBS5_ILP32_OFFBIG > 0
+#if CONF_IS_DEFINED_SET (_XBS5_ILP32_OFFBIG)
 KNOWN_PRESENT_ENVIRONMENT (XBS5, XBS5, ILP32_OFFBIG)
-#elif defined _XBS5_ILP32_OFFBIG
+#elif CONF_IS_DEFINED (_XBS5_ILP32_OFFBIG)
 KNOWN_ABSENT_ENVIRONMENT (XBS5, XBS5, ILP32_OFFBIG)
 #else
 UNKNOWN_ENVIRONMENT (XBS5, XBS5, ILP32_OFFBIG)
 #endif
 
-#if _XBS5_LP64_OFF64 > 0
+#if CONF_IS_DEFINED_SET (_XBS5_LP64_OFF64)
 KNOWN_PRESENT_ENVIRONMENT (XBS5, XBS5, LP64_OFF64)
-#elif defined _XBS5_LP64_OFF64
+#elif CONF_IS_DEFINED (_XBS5_LP64_OFF64)
 KNOWN_ABSENT_ENVIRONMENT (XBS5, XBS5, LP64_OFF64)
 #else
 UNKNOWN_ENVIRONMENT (XBS5, XBS5, LP64_OFF64)
 #endif
 
-#if _XBS5_LPBIG_OFFBIG > 0
+#if CONF_IS_DEFINED_SET (_XBS5_LPBIG_OFFBIG)
 KNOWN_PRESENT_ENVIRONMENT (XBS5, XBS5, LPBIG_OFFBIG)
-#elif defined _XBS5_LPBIG_OFFBIG
+#elif CONF_IS_DEFINED (_XBS5_LPBIG_OFFBIG)
 KNOWN_ABSENT_ENVIRONMENT (XBS5, XBS5, LPBIG_OFFBIG)
 #else
 UNKNOWN_ENVIRONMENT (XBS5, XBS5, LPBIG_OFFBIG)
diff --git a/scripts/gen-conf.awk b/scripts/gen-conf.awk
new file mode 100644
index 0000000..a68faf9
--- /dev/null
+++ b/scripts/gen-conf.awk
@@ -0,0 +1,58 @@
+BEGIN {
+  PROCINFO["sorted_in"] = "@val_type_asc"
+  prefix = ""
+}
+
+$1 ~ /^#/ || $0 ~ /^\s*$/ {
+  next
+}
+
+# Begin a new prefix.
+$2 == "{" {
+  split ($1, arr, ":")
+  type = arr[1]
+  prefix = arr[2]
+  next
+}
+
+$1 == "}" {
+  prefix = ""
+  type = ""
+  next
+}
+
+{
+  if (prefix == "" && type == "" && sc_prefix == "") {
+    print "Syntax error" > "/dev/stderr"
+    exit 1
+  }
+
+  # The prefix and variable names are indices and the value indicates what type
+  # of variable it is.  The possible options are:
+  # CONFSTR: A configuration string
+  # SYSCONF: A numeric value
+  # SPEC: A specification
+  conf[prefix][$1] = type
+}
+
+ENDFILE {
+  print "/* Autogenerated by gen-conf.awk.  */\n"
+
+  # Generate macros that specify if a sysconf macro is defined and/or set.
+  for (p in conf) {
+    for (c in conf[p]) {
+      printf "#ifndef _%s_%s\n", p, c
+      printf "# define _%s_%s_DEF CONF_DEF_UNDEFINED\n", p, c
+      # CONFSTR have string values and they are not set or unset.
+      if (conf[p][c] != "CONFSTR") {
+	printf "#else\n"
+	printf "# if _%s_%s > 0\n", p, c
+	printf "#  define _%s_%s_DEF CONF_DEF_DEFINED_SET\n", p, c
+	printf "# else\n"
+	printf "#  define _%s_%s_DEF CONF_DEF_DEFINED_UNSET\n", p, c
+	printf "# endif\n"
+      }
+      printf "#endif\n\n"
+    }
+  }
+}

-----------------------------------------------------------------------


hooks/post-receive
-- 
GNU C Library master sources


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