reduce spurious inclusion of libc.h

libc.h was intended to be a header for access to global libc state and
related interfaces, but ended up included all over the place because
it was the way to get the weak_alias macro. most of the inclusions
removed here are places where weak_alias was needed. a few were
recently introduced for hidden. some go all the way back to when
libc.h defined CANCELPT_BEGIN and _END, and all (wrongly implemented)
cancellation points had to include it.

remaining spurious users are mostly callers of the LOCK/UNLOCK macros
and files that use the LFS64 macro to define the awful *64 aliases.

in a few places, new inclusion of libc.h is added because several
internal headers no longer implicitly include libc.h.

declarations for __lockfile and __unlockfile are moved from libc.h to
stdio_impl.h so that the latter does not need libc.h. putting them in
libc.h made no sense at all, since the macros in stdio_impl.h are
needed to use them correctly anyway.

9 files changed, 0 insertions, 9 deletions

diff --git a/src/string/memrchr.c b/src/string/memrchr.c
index a78e9d6c..e51748b8 100644
--- a/src/string/memrchr.c
+++ b/src/string/memrchr.c
@@ -1,5 +1,4 @@
 #include <string.h>
-#include "libc.h"
 
 void *__memrchr(const void *m, int c, size_t n)
 {
diff --git a/src/string/stpcpy.c b/src/string/stpcpy.c
index 06623c44..54cf9ca5 100644
--- a/src/string/stpcpy.c
+++ b/src/string/stpcpy.c
@@ -1,7 +1,6 @@
 #include <string.h>
 #include <stdint.h>
 #include <limits.h>
-#include "libc.h"
 
 #define ALIGN (sizeof(size_t))
 #define ONES ((size_t)-1/UCHAR_MAX)
diff --git a/src/string/stpncpy.c b/src/string/stpncpy.c
index 1f57a4dd..d6d92ffc 100644
--- a/src/string/stpncpy.c
+++ b/src/string/stpncpy.c
@@ -1,7 +1,6 @@
 #include <string.h>
 #include <stdint.h>
 #include <limits.h>
-#include "libc.h"
 
 #define ALIGN (sizeof(size_t)-1)
 #define ONES ((size_t)-1/UCHAR_MAX)
diff --git a/src/string/strcasecmp.c b/src/string/strcasecmp.c
index 3cd5f2d0..002c6aa1 100644
--- a/src/string/strcasecmp.c
+++ b/src/string/strcasecmp.c
@@ -1,6 +1,5 @@
 #include <strings.h>
 #include <ctype.h>
-#include "libc.h"
 
 int strcasecmp(const char *_l, const char *_r)
 {
diff --git a/src/string/strchrnul.c b/src/string/strchrnul.c
index 05700ad6..f2b9ae11 100644
--- a/src/string/strchrnul.c
+++ b/src/string/strchrnul.c
@@ -1,7 +1,6 @@
 #include <string.h>
 #include <stdint.h>
 #include <limits.h>
-#include "libc.h"
 
 #define ALIGN (sizeof(size_t))
 #define ONES ((size_t)-1/UCHAR_MAX)
diff --git a/src/string/strerror_r.c b/src/string/strerror_r.c
index da26b4fe..1dc88bb1 100644
--- a/src/string/strerror_r.c
+++ b/src/string/strerror_r.c
@@ -1,6 +1,5 @@
 #include <string.h>
 #include <errno.h>
-#include "libc.h"
 
 int strerror_r(int err, char *buf, size_t buflen)
 {
diff --git a/src/string/strlcpy.c b/src/string/strlcpy.c
index 193d7241..dcb22f6e 100644
--- a/src/string/strlcpy.c
+++ b/src/string/strlcpy.c
@@ -2,7 +2,6 @@
 #include <string.h>
 #include <stdint.h>
 #include <limits.h>
-#include "libc.h"
 
 #define ALIGN (sizeof(size_t)-1)
 #define ONES ((size_t)-1/UCHAR_MAX)
diff --git a/src/string/strncasecmp.c b/src/string/strncasecmp.c
index 3af53008..e0ef93c2 100644
--- a/src/string/strncasecmp.c
+++ b/src/string/strncasecmp.c
@@ -1,6 +1,5 @@
 #include <strings.h>
 #include <ctype.h>
-#include "libc.h"
 
 int strncasecmp(const char *_l, const char *_r, size_t n)
 {
diff --git a/src/string/wcsdup.c b/src/string/wcsdup.c
index dd49c1b6..f398e809 100644
--- a/src/string/wcsdup.c
+++ b/src/string/wcsdup.c
@@ -1,6 +1,5 @@
 #include <stdlib.h>
 #include <wchar.h>
-#include "libc.h"
 
 wchar_t *wcsdup(const wchar_t *s)
 {