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Fix compiler warnings around _CRT_glob

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Newer compilers warned about

    extern int _CRT_glob = 0;

which is indeed a mysterious C construction, as it combines "extern"
and an initialization.  It turns out that according to the C standard,
the "extern" is ignored here, so we can remove it to resolve the
warnings.  But then we also need to add a real extern
declaration (without initializer) to satisfy
-Wmissing-variable-declarations.

(Note that this code is only active on MinGW.)

Discussion: https://www.postgresql.org/message-id/1053279b-da01-4eb4-b7a3-da6b5d8f73d1%40eisentraut.org
This commit is contained in:
Peter Eisentraut
2025-10-01 17:13:52 +02:00
parent 3a66158068
commit 3e908fb54f
1 changed files with 2 additions and 1 deletions
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3
src/common/exec.c
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@@ -46,7 +46,8 @@
/* Inhibit mingw CRT's auto-globbing of command line arguments */ /* Inhibit mingw CRT's auto-globbing of command line arguments */
#if defined(WIN32) && !defined(_MSC_VER) #if defined(WIN32) && !defined(_MSC_VER)
extern int _CRT_glob = 0; /* 0 turns off globbing; 1 turns it on */ extern int _CRT_glob;
int _CRT_glob = 0; /* 0 turns off globbing; 1 turns it on */
#endif #endif
/* /*