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bpo-42598: Fix implicit function declarations in configure (GH-23690)

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This is invalid in C99 and later and is an error with some compilers
(e.g. clang in Xcode 12), and can thus cause configure checks to
produce incorrect results.
This commit is contained in:
Joshua Root 2020-12-14 07:56:34 +11:00 • committed by GitHub
parent 463c7d3d14
commit 674fa0a740
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GPG key ID: 4AEE18F83AFDEB23
3 changed files with 16 additions and 12 deletions
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13
configure vendored
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@ -11108,10 +11108,10 @@ else
main() {
pthread_attr_t attr;
pthread_t id;
if (pthread_attr_init(&attr)) exit(-1);
if (pthread_attr_setscope(&attr, PTHREAD_SCOPE_SYSTEM)) exit(-1);
if (pthread_create(&id, &attr, foo, NULL)) exit(-1);
exit(0);
if (pthread_attr_init(&attr)) return (-1);
if (pthread_attr_setscope(&attr, PTHREAD_SCOPE_SYSTEM)) return (-1);
if (pthread_create(&id, &attr, foo, NULL)) return (-1);
return (0);
}
_ACEOF
if ac_fn_c_try_run "$LINENO"; then :
@ -15130,7 +15130,7 @@ else
int main()
{
/* Success: exit code 0 */
exit((((wchar_t) -1) < ((wchar_t) 0)) ? 0 : 1);
return ((((wchar_t) -1) < ((wchar_t) 0)) ? 0 : 1);
}
_ACEOF
@ -15511,7 +15511,7 @@ else
int main()
{
exit(((-1)>>3 == -1) ? 0 : 1);
return (((-1)>>3 == -1) ? 0 : 1);
}
_ACEOF
@ -15981,6 +15981,7 @@ else
/* end confdefs.h. */
#include <poll.h>
#include <unistd.h>
int main()
{