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Move substitute extern declarations to end of file, so that they are
not read until after we've read the port-specific header file. In particular this should make it safer to #include system headers for inet_aton; in general it seems that the port header file ought to be in a position to set definitions before we do stuff based on having a definition or not.
This commit is contained in:
Tom Lane
parent
3a4b3ac3a5
commit
b02d3aaed7
@ -8,7 +8,7 @@
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* or in pg_config.h afterwards. Of course, if you edit pg_config.h, then your
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* changes will be overwritten the next time you run configure.
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*
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* $Id: pg_config.h.in,v 1.32 2002/09/05 00:43:07 tgl Exp $
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* $Id: pg_config.h.in,v 1.33 2002/11/07 22:08:30 tgl Exp $
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*/
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#ifndef PG_CONFIG_H
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@ -332,11 +332,6 @@
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/* Define to 1 if fseeko (and presumably ftello) exists and is declared. */
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#undef HAVE_FSEEKO
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#ifndef HAVE_FSEEKO
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#define fseeko(a, b, c) fseek((a), (b), (c))
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#define ftello(a) ftell((a))
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#endif
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/* Define if your cpp understands the ANSI stringizing operators in macros */
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#undef HAVE_STRINGIZE
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@ -423,6 +418,7 @@
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/* Set to 1 if you have gettimeofday(a) instead of gettimeofday(a,b) */
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#undef GETTIMEOFDAY_1ARG
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#ifdef GETTIMEOFDAY_1ARG
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# define gettimeofday(a,b) gettimeofday(a)
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#endif
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@ -444,9 +440,6 @@
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/* Set to 1 if you have isinf() */
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#undef HAVE_ISINF
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#ifndef HAVE_ISINF
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extern int isinf(double x);
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#endif
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/*
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* These are all related to port/isinf.c
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@ -459,9 +452,6 @@ extern int isinf(double x);
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/* Set to 1 if you have gethostname() */
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#undef HAVE_GETHOSTNAME
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#ifndef HAVE_GETHOSTNAME
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extern int gethostname(char *name, int namelen);
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#endif
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/* Set to 1 if struct tm has a tm_zone member */
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#undef HAVE_TM_ZONE
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@ -479,13 +469,6 @@ extern int gethostname(char *name, int namelen);
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/* Set to 1 if you have inet_aton() */
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#undef HAVE_INET_ATON
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#ifndef HAVE_INET_ATON
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# include <sys/types.h>
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# include <netinet/in.h>
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# include <arpa/inet.h>
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extern int inet_aton(const char *cp, struct in_addr * addr);
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#endif
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/* Set to 1 if you have fcvt() */
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#undef HAVE_FCVT
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@ -501,17 +484,6 @@ extern int inet_aton(const char *cp, struct in_addr * addr);
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/* Set to 1 if you have sigsetjmp() */
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#undef HAVE_SIGSETJMP
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/*
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* When there is no sigsetjmp, its functionality is provided by plain
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* setjmp. Incidentally, nothing provides setjmp's functionality in
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* that case.
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*/
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#ifndef HAVE_SIGSETJMP
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# define sigjmp_buf jmp_buf
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# define sigsetjmp(x,y) setjmp(x)
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# define siglongjmp longjmp
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#endif
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/* Set to 1 if you have sysconf() */
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#undef HAVE_SYSCONF
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@ -529,9 +501,6 @@ extern int inet_aton(const char *cp, struct in_addr * addr);
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/* Set to 1 if you have sigprocmask() */
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#undef HAVE_STRCASECMP
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#ifndef HAVE_STRCASECMP
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extern int strcasecmp(char *s1, char *s2);
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#endif
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/* Set to 1 if you have strtol() */
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#undef HAVE_STRTOL
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@ -541,21 +510,12 @@ extern int strcasecmp(char *s1, char *s2);
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/* Set to 1 if you have strdup() */
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#undef HAVE_STRDUP
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#ifndef HAVE_STRDUP
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extern char *strdup(char const *);
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#endif
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/* Set to 1 if you have random() */
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#undef HAVE_RANDOM
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#ifndef HAVE_RANDOM
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extern long random(void);
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#endif
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/* Set to 1 if you have srandom() */
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#undef HAVE_SRANDOM
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#ifndef HAVE_SRANDOM
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extern void srandom(unsigned int seed);
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#endif
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/* The random() function is expected to yield values 0 .. MAX_RANDOM_VALUE */
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/* Currently, all known implementations yield 0..2^31-1, so we just hardwire
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@ -575,10 +535,6 @@ extern void srandom(unsigned int seed);
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/* Define if the standard header unistd.h declares fdatasync() */
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#undef HAVE_DECL_FDATASYNC
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#if defined(HAVE_FDATASYNC) && !HAVE_DECL_FDATASYNC
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extern int fdatasync(int fildes);
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#endif
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/* Set to 1 if you have libz.a */
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#undef HAVE_LIBZ
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@ -669,24 +625,12 @@ extern int fdatasync(int fildes);
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/* Define if you have strtoq() */
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#undef HAVE_STRTOQ
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/* If strtoq() exists, rename it to the more standard strtoll() */
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#if defined(HAVE_LONG_LONG_INT_64) && !defined(HAVE_STRTOLL) && defined(HAVE_STRTOQ)
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# define strtoll strtoq
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# define HAVE_STRTOLL 1
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#endif
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/* Define if you have strtoull() */
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#undef HAVE_STRTOULL
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/* Define if you have strtouq() */
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#undef HAVE_STRTOUQ
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/* If strtouq() exists, rename it to the more standard strtoull() */
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#if defined(HAVE_LONG_LONG_INT_64) && !defined(HAVE_STRTOULL) && defined(HAVE_STRTOUQ)
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# define strtoull strtouq
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# define HAVE_STRTOULL 1
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#endif
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/* Define if you have atexit() */
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#undef HAVE_ATEXIT
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@ -727,9 +671,17 @@ extern int fdatasync(int fildes);
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#include "pg_config_os.h"
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/*
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* Provide default definitions for things that port-specific pg_config_os.h
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* files can set, but typically don't.
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*------------------------------------------------------------------------
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* Part 5: provide default declarations for various things that should be
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* provided by the system headers or the port-specific pg_config_os.h file,
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* but sometimes aren't.
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*
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* This must be last so that pg_config_os.h can override the defaults.
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* In particular, we must not pull in any system header files until we
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* have read pg_config_os.h (largefile support tends to break otherwise).
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*------------------------------------------------------------------------
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*/
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#ifndef DLLIMPORT
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@ -749,5 +701,72 @@ extern int fdatasync(int fildes);
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#define SIGNAL_ARGS int postgres_signal_arg
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#endif
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/*
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* Default "extern" declarations or macro substitutes for library routines.
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* When necessary, these routines are provided by files in src/port/.
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*/
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#ifndef HAVE_FSEEKO
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#define fseeko(a, b, c) fseek((a), (b), (c))
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#define ftello(a) ftell((a))
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#endif
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#ifndef HAVE_ISINF
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extern int isinf(double x);
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#endif
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#ifndef HAVE_GETHOSTNAME
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extern int gethostname(char *name, int namelen);
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#endif
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#ifndef HAVE_INET_ATON
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# include <sys/types.h>
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# include <netinet/in.h>
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# include <arpa/inet.h>
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extern int inet_aton(const char *cp, struct in_addr * addr);
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#endif
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/*
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* When there is no sigsetjmp, its functionality is provided by plain
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* setjmp. Incidentally, nothing provides setjmp's functionality in
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* that case.
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*/
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#ifndef HAVE_SIGSETJMP
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# define sigjmp_buf jmp_buf
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# define sigsetjmp(x,y) setjmp(x)
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# define siglongjmp longjmp
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#endif
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#ifndef HAVE_STRCASECMP
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extern int strcasecmp(char *s1, char *s2);
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#endif
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#ifndef HAVE_STRDUP
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extern char *strdup(char const *);
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#endif
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#ifndef HAVE_RANDOM
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extern long random(void);
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#endif
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#ifndef HAVE_SRANDOM
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extern void srandom(unsigned int seed);
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#endif
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#if defined(HAVE_FDATASYNC) && !HAVE_DECL_FDATASYNC
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extern int fdatasync(int fildes);
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#endif
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/* If strtoq() exists, rename it to the more standard strtoll() */
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#if defined(HAVE_LONG_LONG_INT_64) && !defined(HAVE_STRTOLL) && defined(HAVE_STRTOQ)
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# define strtoll strtoq
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# define HAVE_STRTOLL 1
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#endif
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/* If strtouq() exists, rename it to the more standard strtoull() */
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#if defined(HAVE_LONG_LONG_INT_64) && !defined(HAVE_STRTOULL) && defined(HAVE_STRTOUQ)
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# define strtoull strtouq
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# define HAVE_STRTOULL 1
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#endif
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#endif /* PG_CONFIG_H */
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