Use strict function prototypes

6 files changed, 26 insertions, 26 deletions

diff --git a/mesonbuild/compilers/c.py b/mesonbuild/compilers/c.py
index 7c46627..db7abf0 100644
--- a/mesonbuild/compilers/c.py
+++ b/mesonbuild/compilers/c.py
@@ -59,14 +59,14 @@ class CCompiler(CLikeCompiler, Compiler):
         return ['-nostdinc']
 
     def sanity_check(self, work_dir, environment):
-        code = 'int main() { int class=0; return class; }\n'
+        code = 'int main(void) { int class=0; return class; }\n'
         return self.sanity_check_impl(work_dir, environment, 'sanitycheckc.c', code)
 
     def has_header_symbol(self, hname, symbol, prefix, env, *, extra_args=None, dependencies=None):
         fargs = {'prefix': prefix, 'header': hname, 'symbol': symbol}
         t = '''{prefix}
         #include <{header}>
-        int main () {{
+        int main(void) {{
             /* If it's not defined as a macro, try to use as a symbol */
             #ifndef {symbol}
                 {symbol};
diff --git a/mesonbuild/compilers/cpp.py b/mesonbuild/compilers/cpp.py
index 67a26dc..6d45a84 100644
--- a/mesonbuild/compilers/cpp.py
+++ b/mesonbuild/compilers/cpp.py
@@ -73,7 +73,7 @@ class CPPCompiler(CLikeCompiler, Compiler):
         return ['-nostdinc++']
 
     def sanity_check(self, work_dir, environment):
-        code = 'class breakCCompiler;int main() { return 0; }\n'
+        code = 'class breakCCompiler;int main(void) { return 0; }\n'
         return self.sanity_check_impl(work_dir, environment, 'sanitycheckcpp.cc', code)
 
     def get_compiler_check_args(self):
@@ -96,7 +96,7 @@ class CPPCompiler(CLikeCompiler, Compiler):
         t = '''{prefix}
         #include <{header}>
         using {symbol};
-        int main () {{ return 0; }}'''
+        int main(void) {{ return 0; }}'''
         return self.compiles(t.format(**fargs), env, extra_args=extra_args,
                              dependencies=dependencies)
 
diff --git a/mesonbuild/compilers/cuda.py b/mesonbuild/compilers/cuda.py
index 4ca8f4e..91dde0c 100644
--- a/mesonbuild/compilers/cuda.py
+++ b/mesonbuild/compilers/cuda.py
@@ -174,7 +174,7 @@ class CudaCompiler(Compiler):
         t = '''{prefix}
         #include <{header}>
         using {symbol};
-        int main () {{ return 0; }}'''
+        int main(void) {{ return 0; }}'''
         return self.compiles(t.format(**fargs), env, extra_args, dependencies)
 
     def get_options(self):
diff --git a/mesonbuild/compilers/mixins/clike.py b/mesonbuild/compilers/mixins/clike.py
index 5d50b7d..ce3d9d7 100644
--- a/mesonbuild/compilers/mixins/clike.py
+++ b/mesonbuild/compilers/mixins/clike.py
@@ -258,7 +258,7 @@ class CLikeCompiler:
             raise mesonlib.EnvironmentException('Executables created by {0} compiler {1} are not runnable.'.format(self.language, self.name_string()))
 
     def sanity_check(self, work_dir, environment):
-        code = 'int main() { int class=0; return class; }\n'
+        code = 'int main(void) { int class=0; return class; }\n'
         return self.sanity_check_impl(work_dir, environment, 'sanitycheckc.c', code)
 
     def check_header(self, hname, prefix, env, *, extra_args=None, dependencies=None):
@@ -285,7 +285,7 @@ class CLikeCompiler:
         fargs = {'prefix': prefix, 'header': hname, 'symbol': symbol}
         t = '''{prefix}
         #include <{header}>
-        int main () {{
+        int main(void) {{
             /* If it's not defined as a macro, try to use as a symbol */
             #ifndef {symbol}
                 {symbol};
@@ -398,7 +398,7 @@ class CLikeCompiler:
         fargs = {'prefix': prefix, 'expression': expression}
         t = '''#include <stdio.h>
         {prefix}
-        int main() {{ static int a[1-2*!({expression})]; a[0]=0; return 0; }}'''
+        int main(void) {{ static int a[1-2*!({expression})]; a[0]=0; return 0; }}'''
         return self.compiles(t.format(**fargs), env, extra_args=extra_args,
                              dependencies=dependencies)[0]
 
@@ -458,7 +458,7 @@ class CLikeCompiler:
         fargs = {'prefix': prefix, 'expression': expression}
         t = '''#include<stdio.h>
         {prefix}
-        int main() {{
+        int main(void) {{
             printf("%ld\\n", (long)({expression}));
             return 0;
         }};'''
@@ -476,7 +476,7 @@ class CLikeCompiler:
         fargs = {'prefix': prefix, 'type': typename}
         t = '''#include <stdio.h>
         {prefix}
-        int main() {{
+        int main(void) {{
             {type} something;
             return 0;
         }}'''
@@ -494,7 +494,7 @@ class CLikeCompiler:
                                      dependencies=dependencies)
         t = '''#include<stdio.h>
         {prefix}
-        int main() {{
+        int main(void) {{
             printf("%ld\\n", (long)(sizeof({type})));
             return 0;
         }};'''
@@ -512,7 +512,7 @@ class CLikeCompiler:
         fargs = {'prefix': prefix, 'type': typename}
         t = '''#include <stdio.h>
         {prefix}
-        int main() {{
+        int main(void) {{
             {type} something;
             return 0;
         }}'''
@@ -541,7 +541,7 @@ class CLikeCompiler:
             char c;
             {type} target;
         }};
-        int main() {{
+        int main(void) {{
             printf("%d", (int)offsetof(struct tmp, target));
             return 0;
         }}'''
@@ -591,7 +591,7 @@ class CLikeCompiler:
         fargs = {'prefix': prefix, 'f': fname, 'cast': cast, 'fmt': fmt}
         code = '''{prefix}
         #include <stdio.h>
-        int main() {{
+        int main(void) {{
             printf ("{fmt}", {cast} {f}());
             return 0;
         }}'''.format(**fargs)
@@ -634,11 +634,11 @@ class CLikeCompiler:
         #ifdef __cplusplus
         extern "C"
         #endif
-        char {func} ();
+        char {func} (void);
         '''
         # The actual function call
         main = '''
-        int main () {{
+        int main(void) {{
           return {func} ();
         }}'''
         return head, main
@@ -657,7 +657,7 @@ class CLikeCompiler:
         # Just taking the address or comparing it to void is not enough because
         # compilers are smart enough to optimize it away. The resulting binary
         # is not run so we don't care what the return value is.
-        main = '''\nint main() {{
+        main = '''\nint main(void) {{
             void *a = (void*) &{func};
             long b = (long) a;
             return (int) b;
@@ -729,7 +729,7 @@ class CLikeCompiler:
         # can just directly use the __has_builtin() macro.
         fargs['no_includes'] = '#include' not in prefix
         t = '''{prefix}
-        int main() {{
+        int main(void) {{
         #ifdef __has_builtin
             #if !__has_builtin(__builtin_{func})
                 #error "__builtin_{func} not found"
@@ -761,7 +761,7 @@ class CLikeCompiler:
             members += '{}.{};\n'.format(fargs['name'], member)
         fargs['members'] = members
         t = '''{prefix}
-        void bar() {{
+        void bar(void) {{
             {type} {name};
             {members}
         }};'''
@@ -771,7 +771,7 @@ class CLikeCompiler:
     def has_type(self, typename, prefix, env, extra_args, dependencies=None):
         fargs = {'prefix': prefix, 'type': typename}
         t = '''{prefix}
-        void bar() {{
+        void bar(void) {{
             sizeof({type});
         }};'''
         return self.compiles(t.format(**fargs), env, extra_args=extra_args,
@@ -785,7 +785,7 @@ class CLikeCompiler:
         code = '''#ifdef __cplusplus
         extern "C" {
         #endif
-        void ''' + symbol_name.decode() + ''' () {}
+        void ''' + symbol_name.decode() + ''' (void) {}
         #ifdef __cplusplus
         }
         #endif
@@ -993,7 +993,7 @@ class CLikeCompiler:
         return value[:]
 
     def find_library(self, libname, env, extra_dirs, libtype: LibType = LibType.PREFER_SHARED):
-        code = 'int main() { return 0; }'
+        code = 'int main(void) { return 0; }'
         return self.find_library_impl(libname, env, extra_dirs, code, libtype)
 
     def find_framework_paths(self, env):
@@ -1023,7 +1023,7 @@ class CLikeCompiler:
         return paths
 
     def find_framework_real(self, name, env, extra_dirs, allow_system):
-        code = 'int main() { return 0; }'
+        code = 'int main(void) { return 0; }'
         link_args = []
         for d in extra_dirs:
             link_args += ['-F' + d]
@@ -1102,7 +1102,7 @@ class CLikeCompiler:
         # false positive.
         args = self.linker.fatal_warnings() + args
         args = self.linker_to_compiler_args(args)
-        code = 'int main() { return 0; }'
+        code = 'int main(void) { return 0; }'
         return self.has_arguments(args, env, code, mode='link')
 
     @staticmethod
diff --git a/mesonbuild/compilers/objc.py b/mesonbuild/compilers/objc.py
index 58f3ec5..f69c57c 100644
--- a/mesonbuild/compilers/objc.py
+++ b/mesonbuild/compilers/objc.py
@@ -48,7 +48,7 @@ class ObjCCompiler(CLikeCompiler, Compiler):
             extra_flags += environment.coredata.get_external_link_args(self.for_machine, self.language)
         with open(source_name, 'w') as ofile:
             ofile.write('#import<stddef.h>\n'
-                        'int main() { return 0; }\n')
+                        'int main(void) { return 0; }\n')
         pc = subprocess.Popen(self.exelist + extra_flags + [source_name, '-o', binary_name])
         pc.wait()
         if pc.returncode != 0:
diff --git a/mesonbuild/compilers/objcpp.py b/mesonbuild/compilers/objcpp.py
index 5dab8b0..76cda7b 100644
--- a/mesonbuild/compilers/objcpp.py
+++ b/mesonbuild/compilers/objcpp.py
@@ -48,7 +48,7 @@ class ObjCPPCompiler(CLikeCompiler, Compiler):
         with open(source_name, 'w') as ofile:
             ofile.write('#import<stdio.h>\n'
                         'class MyClass;'
-                        'int main() { return 0; }\n')
+                        'int main(void) { return 0; }\n')
         pc = subprocess.Popen(self.exelist + extra_flags + [source_name, '-o', binary_name])
         pc.wait()
         if pc.returncode != 0: