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commit 8dee88fe931e44f3b3708c488aaeecfaabafdcd5
Author: Florian Weimer <fweimer@redhat.com>
Date: Fri Dec 2 03:28:33 2022 +0100
configure.ac: Add missing int return types to main (#7407)
Implicit ints are a language feature that was removed in C99 and
future compilers may require declaration of all return types.
--- a/configure.ac
+++ b/configure.ac
@@ -1039,7 +1039,7 @@ AC_CHECK_FUNCS(sem_init)
if test "$ac_cv_func_sem_init" = "yes"; then
AC_MSG_CHECKING(for working sem_init())
AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <semaphore.h>
- main () {
+ int main () {
sem_t s;
return sem_init(&s,0,0);
}
@@ -1072,7 +1072,7 @@ AC_SYS_LARGEFILE
if test "$ac_cv_sys_file_offset_bits" = "no"; then
AC_MSG_CHECKING(for native large file support)
AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <unistd.h>
- main () {
+ int main () {
return !(sizeof(off_t) == 8);
}]])],[ac_cv_sys_file_offset_bits=64; AC_DEFINE(_FILE_OFFSET_BITS,64)
AC_MSG_RESULT(yes)],[AC_MSG_RESULT(no)],[])
@@ -1110,7 +1110,7 @@ dnl EKU: try to determine the alignment
dnl replaces FB_ALIGNMENT and FB_DOUBLE_ALIGN in src/jrd/common.h
AC_MSG_CHECKING(alignment of long)
AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <semaphore.h>
-main () {
+int main () {
struct s {
char a;
union { long long x; sem_t y; } b;
@@ -1121,7 +1121,7 @@ AC_MSG_RESULT($ac_cv_c_alignment)
AC_DEFINE_UNQUOTED(FB_ALIGNMENT, $ac_cv_c_alignment, [Alignment of long])
AC_MSG_CHECKING(alignment of double)
-AC_RUN_IFELSE([AC_LANG_SOURCE([[main () {
+AC_RUN_IFELSE([AC_LANG_SOURCE([[int main () {
struct s {
char a;
double b;
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