From 8f0dd9478e164121e31bebaf1c10dd6e537d2918 Mon Sep 17 00:00:00 2001 From: Andrew Clayton Date: Fri, 28 Oct 2022 00:17:51 +0100 Subject: 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: Link: Reviewed-by: Alejandro Colomar Signed-off-by: Andrew Clayton --- auto/mmap | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'auto/mmap') diff --git a/auto/mmap b/auto/mmap index 8ecdf670..e8ffac78 100644 --- a/auto/mmap +++ b/auto/mmap @@ -13,7 +13,7 @@ nxt_feature_libs= nxt_feature_test="#include #include - 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 #include - 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 #include - 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 #include - int main() { + int main(void) { if (mmap(NULL, 4096, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON | MAP_PREFAULT_READ, -1, 0) -- cgit