Simplify test-snippets in configure.cmake

The main(void) signature obviates the need for unused parameters and
has existed since (at least) C89; so use that instead of the
old-fashioned argc/argv arguments we don't use in any of these tests.

Change-Id: Ibfe850a1fce378673c9781011475ea623fd75ad4
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>

1 files changed, 23 insertions, 46 deletions

diff --git a/src/corelib/configure.cmake b/src/corelib/configure.cmake
index 1c585f5b3c..6e189ad2dd 100644
--- a/src/corelib/configure.cmake
+++ b/src/corelib/configure.cmake
@@ -55,9 +55,8 @@ void test(volatile atomicfptr &a)
     }
     a.store(&testfunction, std::memory_order_release);
 }
-int main(int argc, char **argv)
+int main(void)
 {
-    (void)argc; (void)argv;
     /* BEGIN TEST: */
 atomicfptr fptr(testfunction);
 test(fptr);
@@ -76,9 +75,8 @@ qt_config_compile_test(clock_monotonic
 #include <unistd.h>
 #include <time.h>
 
-int main(int argc, char **argv)
+int main(void)
 {
-    (void)argc; (void)argv;
     /* BEGIN TEST: */
 #if defined(_POSIX_MONOTONIC_CLOCK) && (_POSIX_MONOTONIC_CLOCK-0 >= 0)
 timespec ts;
@@ -101,9 +99,8 @@ qt_config_compile_test(cloexec
 #include <fcntl.h>
 #include <unistd.h>
 
-int main(int argc, char **argv)
+int main(void)
 {
-    (void)argc; (void)argv;
     /* BEGIN TEST: */
 int pipes[2];
 (void) pipe2(pipes, O_CLOEXEC | O_NONBLOCK);
@@ -132,9 +129,8 @@ qt_config_compile_test(cxx11_future
 "
 #include <future>
 
-int main(int argc, char **argv)
+int main(void)
 {
-    (void)argc; (void)argv;
     /* BEGIN TEST: */
 std::future<int> f = std::async([]() { return 42; });
 (void)f.get();
@@ -151,9 +147,8 @@ qt_config_compile_test(cxx11_random
 "
 #include <random>
 
-int main(int argc, char **argv)
+int main(void)
 {
-    (void)argc; (void)argv;
     /* BEGIN TEST: */
 std::mt19937 mt(0);
     /* END TEST: */
@@ -168,9 +163,8 @@ qt_config_compile_test(cxx17_filesystem
 "
 #include <filesystem>
 
-int main(int argc, char **argv)
+int main(void)
 {
-    (void)argc; (void)argv;
     /* BEGIN TEST: */
 std::filesystem::copy(
     std::filesystem::path(\"./file\"),
@@ -188,9 +182,8 @@ qt_config_compile_test(eventfd
 "
 #include <sys/eventfd.h>
 
-int main(int argc, char **argv)
+int main(void)
 {
-    (void)argc; (void)argv;
     /* BEGIN TEST: */
 eventfd_t value;
 int fd = eventfd(0, EFD_CLOEXEC);
@@ -208,9 +201,8 @@ qt_config_compile_test(futimens
 "
 #include <sys/stat.h>
 
-int main(int argc, char **argv)
+int main(void)
 {
-    (void)argc; (void)argv;
     /* BEGIN TEST: */
 futimens(-1, 0);
     /* END TEST: */
@@ -226,9 +218,8 @@ qt_config_compile_test(futimes
 "
 #include <sys/time.h>
 
-int main(int argc, char **argv)
+int main(void)
 {
-    (void)argc; (void)argv;
     /* BEGIN TEST: */
 futimes(-1, 0);
     /* END TEST: */
@@ -243,9 +234,8 @@ qt_config_compile_test(getauxval
 "
 #include <sys/auxv.h>
 
-int main(int argc, char **argv)
+int main(void)
 {
-    (void)argc; (void)argv;
     /* BEGIN TEST: */
 (void) getauxval(AT_NULL);
     /* END TEST: */
@@ -260,9 +250,8 @@ qt_config_compile_test(getentropy
 "
 #include <unistd.h>
 
-int main(int argc, char **argv)
+int main(void)
 {
-    (void)argc; (void)argv;
     /* BEGIN TEST: */
 char buf[32];
 (void) getentropy(buf, sizeof(buf));
@@ -278,9 +267,8 @@ qt_config_compile_test(glibc
 "
 #include <stdlib.h>
 
-int main(int argc, char **argv)
+int main(void)
 {
-    (void)argc; (void)argv;
     /* BEGIN TEST: */
 return __GLIBC__;
     /* END TEST: */
@@ -295,9 +283,8 @@ qt_config_compile_test(inotify
 "
 #include <sys/inotify.h>
 
-int main(int argc, char **argv)
+int main(void)
 {
-    (void)argc; (void)argv;
     /* BEGIN TEST: */
 inotify_init();
 inotify_add_watch(0, \"foobar\", IN_ACCESS);
@@ -318,9 +305,8 @@ qt_config_compile_test(ipc_sysv
 #include <sys/shm.h>
 #include <fcntl.h>
 
-int main(int argc, char **argv)
+int main(void)
 {
-    (void)argc; (void)argv;
     /* BEGIN TEST: */
 key_t unix_key = ftok(\"test\", 'Q');
 semctl(semget(unix_key, 1, 0666 | IPC_CREAT | IPC_EXCL), 0, IPC_RMID, 0);
@@ -346,9 +332,8 @@ qt_config_compile_test(ipc_posix
 #include <semaphore.h>
 #include <fcntl.h>
 
-int main(int argc, char **argv)
+int main(void)
 {
-    (void)argc; (void)argv;
     /* BEGIN TEST: */
 sem_close(sem_open(\"test\", O_CREAT | O_EXCL, 0666, 0));
 shm_open(\"test\", O_RDWR | O_CREAT | O_EXCL, 0666);
@@ -366,9 +351,8 @@ qt_config_compile_test(linkat
 #include <fcntl.h>
 #include <unistd.h>
 
-int main(int argc, char **argv)
+int main(void)
 {
-    (void)argc; (void)argv;
     /* BEGIN TEST: */
 linkat(AT_FDCWD, \"foo\", AT_FDCWD, \"bar\", AT_SYMLINK_FOLLOW);
     /* END TEST: */
@@ -384,9 +368,8 @@ qt_config_compile_test(ppoll
 #include <signal.h>
 #include <poll.h>
 
-int main(int argc, char **argv)
+int main(void)
 {
-    (void)argc; (void)argv;
     /* BEGIN TEST: */
 struct pollfd pfd;
 struct timespec ts;
@@ -406,9 +389,8 @@ qt_config_compile_test(pollts
 #include <signal.h>
 #include <time.h>
 
-int main(int argc, char **argv)
+int main(void)
 {
-    (void)argc; (void)argv;
     /* BEGIN TEST: */
 struct pollfd pfd;
 struct timespec ts;
@@ -426,9 +408,8 @@ qt_config_compile_test(poll
 "
 #include <poll.h>
 
-int main(int argc, char **argv)
+int main(void)
 {
-    (void)argc; (void)argv;
     /* BEGIN TEST: */
 struct pollfd pfd;
 poll(&pfd, 1, 0);
@@ -445,9 +426,8 @@ qt_config_compile_test(renameat2
 #include <fcntl.h>
 #include <stdio.h>
 
-int main(int argc, char **argv)
+int main(void)
 {
-    (void)argc; (void)argv;
     /* BEGIN TEST: */
 renameat2(AT_FDCWD, argv[1], AT_FDCWD, argv[2], RENAME_NOREPLACE | RENAME_WHITEOUT);
     /* END TEST: */
@@ -465,9 +445,8 @@ qt_config_compile_test(statx
 #include <unistd.h>
 #include <fcntl.h>
 
-int main(int argc, char **argv)
+int main(void)
 {
-    (void)argc; (void)argv;
     /* BEGIN TEST: */
 struct statx statxbuf;
 unsigned int mask = STATX_BASIC_STATS;
@@ -484,9 +463,8 @@ qt_config_compile_test(syslog
 "
 #include <syslog.h>
 
-int main(int argc, char **argv)
+int main(void)
 {
-    (void)argc; (void)argv;
     /* BEGIN TEST: */
 openlog(\"qt\", 0, LOG_USER);
 syslog(LOG_INFO, \"configure\");
@@ -512,9 +490,8 @@ qt_config_compile_test(xlocalescanprint
 #define QT_NO_DOUBLECONVERSION
 
 #include QDSP_P_H
-int main(int argc, char **argv)
+int main(void)
 {
-    (void)argc; (void)argv;
     /* BEGIN TEST: */
 #ifdef _MSVC_VER
 _locale_t invalidLocale = NULL;