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Use Autoconf AC_CHECK_TYPE for checking siginfo_t (#13389)

The siginfo_t is defined by including the signal.h. Some systems include the siginfo.h in the signal.h. Including it separately is obsolete on current systems.

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ext/pcntl
- config.m4

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`‎ext/pcntl/config.m4‎`

Lines changed: 1 addition & 14 deletions

Original file line number	Diff line number	Diff line change
`@@ -9,20 +9,7 @@ if test "$PHP_PCNTL" != "no"; then`
`9`	`9`	`AC_CHECK_FUNCS([sigaction], [], [AC_MSG_ERROR([pcntl: sigaction() not supported by this platform])])`
`10`	`10`	`AC_CHECK_FUNCS([getpriority setpriority wait3 wait4 sigwaitinfo sigtimedwait unshare rfork forkx])`
`11`	`11`
`12`		`- AC_MSG_CHECKING([for siginfo_t])`
`13`		`- AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[`
`14`		`- #include <signal.h>`
`15`		`- #ifdef HAVE_SIGINFO_H`
`16`		`- #include <siginfo.h>`
`17`		`- #endif`
`18`		`- ]],[[`
`19`		`- siginfo_t info;`
`20`		`- ]])],[`
`21`		`- AC_MSG_RESULT([yes])`
`22`		`- PCNTL_CFLAGS="-DHAVE_STRUCT_SIGINFO_T"`
`23`		`- ], [`
`24`		`- AC_MSG_RESULT([no])`
`25`		`- ])`
	`12`	`+ AC_CHECK_TYPE([siginfo_t],[PCNTL_CFLAGS="-DHAVE_STRUCT_SIGINFO_T"],,[#include <signal.h>])`
`26`	`13`
`27`	`14`	`PHP_NEW_EXTENSION(pcntl, pcntl.c php_signal.c, $ext_shared, cli, $PCNTL_CFLAGS -DZEND_ENABLE_STATIC_TSRMLS_CACHE=1)`
`28`	`15`	`fi`

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Commit 1e770d1

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`‎ext/pcntl/config.m4‎`

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