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new 830a79ec m4: Fix Wstrict-prototypes warnings
830a79ec is described below
commit 830a79ec29fc67e683f843285d6b68621fd353a2
Author: Peter Kokot <peterko...@gmail.com>
AuthorDate: Mon Mar 18 01:28:15 2024 +0100
m4: Fix Wstrict-prototypes warnings
This changes the C function prototypes to use void where needed. When
building with CFLAGS=-Werror=strict-prototypes or similar, the libtool's
tests can cause false reports and errors in the log files:
error: function declaration isn't a prototype
* m4/libtool.m4: Specify void for main function prototypes.
* m4/ltdl.m4: Specify void for main and fnord function prototypes.
---
m4/libtool.m4 | 12 ++++++------
m4/ltdl.m4 | 4 ++--
2 files changed, 8 insertions(+), 8 deletions(-)
diff --git a/m4/libtool.m4 b/m4/libtool.m4
index bbf2d21f..71d1e1ce 100644
--- a/m4/libtool.m4
+++ b/m4/libtool.m4
@@ -1048,7 +1048,7 @@ _LT_EOF
echo "$RANLIB libconftest.a" >&AS_MESSAGE_LOG_FD
$RANLIB libconftest.a 2>&AS_MESSAGE_LOG_FD
cat > conftest.c << _LT_EOF
-int main() { return 0;}
+int main(void) { return 0;}
_LT_EOF
echo "$LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c
-Wl,-force_load,./libconftest.a" >&AS_MESSAGE_LOG_FD
$LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c
-Wl,-force_load,./libconftest.a 2>conftest.err
@@ -1879,11 +1879,11 @@ else
/* When -fvisibility=hidden is used, assume the code has been annotated
correspondingly for the symbols needed. */
#if defined __GNUC__ && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) ||
(__GNUC__ > 3))
-int fnord () __attribute__((visibility("default")));
+int fnord (void) __attribute__((visibility("default")));
#endif
-int fnord () { return 42; }
-int main ()
+int fnord (void) { return 42; }
+int main (void)
{
void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW);
int status = $lt_dlunknown;
@@ -4060,7 +4060,7 @@ void nm_test_func(void){}
#ifdef __cplusplus
}
#endif
-int main(){nm_test_var='a';nm_test_func();return(0);}
+int main(void){nm_test_var='a';nm_test_func();return(0);}
_LT_EOF
if AC_TRY_EVAL(ac_compile); then
@@ -6232,7 +6232,7 @@ _LT_TAGVAR(objext, $1)=$objext
lt_simple_compile_test_code="int some_variable = 0;"
# Code to be used in simple link tests
-lt_simple_link_test_code='int main(){return(0);}'
+lt_simple_link_test_code='int main(void){return(0);}'
_LT_TAG_COMPILER
# Save the default compiler, since it gets overwritten when the other
diff --git a/m4/ltdl.m4 b/m4/ltdl.m4
index 548e3643..8c6222b9 100644
--- a/m4/ltdl.m4
+++ b/m4/ltdl.m4
@@ -758,7 +758,7 @@ AC_CACHE_CHECK([for _ prefix in compiled symbols],
[lt_cv_sys_symbol_underscore=no
cat > conftest.$ac_ext <<_LT_EOF
void nm_test_func(){}
-int main(){nm_test_func;return 0;}
+int main(void){nm_test_func;return 0;}
_LT_EOF
if AC_TRY_EVAL(ac_compile); then
# Now try to grab the symbols.
@@ -862,7 +862,7 @@ _LT_EOF
# define RTLD_NOW 0
# endif
#endif
-int main () {
+int main (void) {
void *handle = dlopen ("`pwd`/$libname$libltdl_cv_shlibext",
RTLD_GLOBAL|RTLD_NOW);
int status = $libltdl_dlunknown;
if (handle) {
