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Remove configure probe for dlopen, and refactor.

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dlopen() is in SUSv2 and all targeted Unix systems have it.  We still
need replacement functions for Windows, but we don't need a configure
probe for that.

Since it's no longer needed by other operating systems, rename dlopen.c
to win32dlopen.c and move the declarations into win32_port.h.

Likewise, the macros RTLD_NOW and RTLD_GLOBAL now only need to be
defined on Windows, since all targeted Unix systems have 'em.

Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Reviewed-by: Andres Freund <andres@anarazel.de>
Discussion: https://postgr.es/m/CA+hUKGJ3LHeP9w5Fgzdr4G8AnEtJ=z=p6hGDEm4qYGEUX5B6fQ@mail.gmail.com
This commit is contained in:
Thomas Munro
2022-08-05 09:12:45 +12:00
parent 87e22f675f
commit ca1e85513e
9 changed files with 23 additions and 87 deletions
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9
src/include/port/win32_port.h
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@@ -503,6 +503,15 @@ extern int pgwin32_ReserveSharedMemoryRegion(HANDLE);
/* in backend/port/win32/crashdump.c */
extern void pgwin32_install_crashdump_handler(void);
/* in port/win32dlopen.c */
extern void *dlopen(const char *file, int mode);
extern void *dlsym(void *handle, const char *symbol);
extern int dlclose(void *handle);
extern char *dlerror(void);
#define RTLD_NOW 1
#define RTLD_GLOBAL 0
/* in port/win32error.c */
extern void _dosmaperr(unsigned long);