diff options
| author | Andrew Clayton <a.clayton@nginx.com> | 2022-10-28 00:17:51 +0100 |
|---|---|---|
| committer | Andrew Clayton <a.clayton@nginx.com> | 2022-10-28 03:17:31 +0100 |
| commit | 8f0dd9478e164121e31bebaf1c10dd6e537d2918 (patch) | |
| tree | ffa6a1e20de03c2592f415d17440421c3748e8ed /auto/mmap | |
| parent | a3cb07df20541939335fe42c75d0d479c2092b88 (diff) | |
| download | unit-8f0dd9478e164121e31bebaf1c10dd6e537d2918.tar.gz unit-8f0dd9478e164121e31bebaf1c10dd6e537d2918.tar.bz2 | |
Fixed main() prototypes in auto tests.
Future releases of GCC are planning to remove[0] default support for
some old features that were removed from C99 but GCC still accepts.
We can test for these changes by using the following -Werror=
directives
-Werror=implicit-int
-Werror=implicit-function-declaration
-Werror=int-conversion
-Werror=strict-prototypes
-Werror=old-style-definition
Doing so revealed an issue with the auto/ tests in that the test
programs always define main as
int main()
rather than
int main(void)
which results in a bunch of errors like
build/autotest.c:3:23: error: function declaration isn't a prototype [-Werror=strict-prototypes]
3 | int main() {
| ^~~~
build/autotest.c: In function 'main':
build/autotest.c:3:23: error: old-style function definition [-Werror=old-style-definition]
The fix was easy, it only required fixing the main prototype with
find -type f -exec sed -i 's/int main() {/int main(void) {/g' {} \;
Regardless of these upcoming GCC changes, this is probably a good thing
to do anyway for correctness.
[0]: https://fedoraproject.org/wiki/Changes/PortingToModernC
Link: <https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org/message/CJXKTLXJUPZ4F2C2VQOTNMEA5JAUPMBD/>
Link: <https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org/message/6SGHPHPAXKCVJ6PUZ57WVDQ5TDBVIRMF/>
Reviewed-by: Alejandro Colomar <alx@nginx.com>
Signed-off-by: Andrew Clayton <a.clayton@nginx.com>
Diffstat (limited to 'auto/mmap')
| -rw-r--r-- | auto/mmap | 8 |
1 files changed, 4 insertions, 4 deletions
@@ -13,7 +13,7 @@ nxt_feature_libs= nxt_feature_test="#include <stdlib.h> #include <sys/mman.h> - int main() { + int main(void) { if (mmap(NULL, 4096, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON, -1, 0) == MAP_FAILED) @@ -35,7 +35,7 @@ if [ $nxt_found = no ]; then nxt_feature_test="#include <stdlib.h> #include <sys/mman.h> - int main() { + int main(void) { if (mmap(NULL, 4096, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0) == MAP_FAILED) @@ -56,7 +56,7 @@ nxt_feature_libs= nxt_feature_test="#include <stdlib.h> #include <sys/mman.h> - int main() { + int main(void) { if (mmap(NULL, 4096, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_POPULATE, -1, 0) == MAP_FAILED) @@ -76,7 +76,7 @@ nxt_feature_libs= nxt_feature_test="#include <stdlib.h> #include <sys/mman.h> - int main() { + int main(void) { if (mmap(NULL, 4096, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON | MAP_PREFAULT_READ, -1, 0) |