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Get rid of scribbling on a const variable in psql's print.c.

Commita2dabf0 had the bright idea that it could modify a "const"global variable if it merely casted away const from a pointer. This doesnot work on platforms where the compiler puts "const" variables intoread-only storage. Depressingly, we evidently have no such platforms inour buildfarm ... an oversight I have now remedied. (The one platformthat is known to catch this is recent OS X with -fno-common.)Per report from Chris Ruprecht. Back-patch to 9.5 where the boguscode was introduced.

1 parent23a27b0 commitfc7a9dfCopy full SHA for fc7a9df

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2 files changed

-3

lines changed

src/bin/psql
- print.c
- print.h

2 files changed

-3

lines changed

`‎src/bin/psql/print.c`

Lines changed: 2 additions & 2 deletions

Original file line number	Diff line number	Diff line change
`@@ -98,7 +98,7 @@ const printTextFormat pg_asciiformat_old =`
`98`	`98`	`};`
`99`	`99`
`100`	`100`	`/* Default unicode linestyle format */`
`101`		`-constprintTextFormatpg_utf8format;`
	`101`	`+printTextFormatpg_utf8format;`
`102`	`102`
`103`	`103`	`typedefstructunicodeStyleRowFormat`
`104`	`104`	`{`
`@@ -3412,7 +3412,7 @@ get_line_style(const printTableOpt *opt)`
`3412`	`3412`	`void`
`3413`	`3413`	`refresh_utf8format(constprintTableOpt*opt)`
`3414`	`3414`	`{`
`3415`		`-printTextFormatpopt=(printTextFormat)&pg_utf8format;`
	`3415`	`+printTextFormat*popt=&pg_utf8format;`
`3416`	`3416`
`3417`	`3417`	`constunicodeStyleBorderFormat*border;`
`3418`	`3418`	`constunicodeStyleRowFormat*header;`

`‎src/bin/psql/print.h`

Lines changed: 1 addition & 1 deletion

Original file line number	Diff line number	Diff line change
`@@ -163,7 +163,7 @@ typedef struct printQueryOpt`
`163`	`163`
`164`	`164`	`externconstprintTextFormatpg_asciiformat;`
`165`	`165`	`externconstprintTextFormatpg_asciiformat_old;`
`166`		`-externconstprintTextFormatpg_utf8format;`
	`166`	`+externprintTextFormatpg_utf8format;/* ideally would be const, but... */`
`167`	`167`
`168`	`168`
`169`	`169`	`externvoiddisable_sigpipe_trap(void);`

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Commitfc7a9df

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2 files changed

2 files changed

`‎src/bin/psql/print.c`

`‎src/bin/psql/print.h`

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