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| author | Paul Eggert <eggert@cs.ucla.edu> | 2022-09-01 16:19:50 -0500 |
|---|---|---|
| committer | Paul Eggert <eggert@cs.ucla.edu> | 2022-09-02 12:09:32 -0500 |
| commit | 8b5e2016c7ed2d67f31b03a3d2e361858ff5299b (patch) | |
| tree | fa240e0ed35eafdf046380604dbfd6ea07cd5ac4 /lib | |
| parent | 0a647a93cb3d966671bb45effbce21fdf2a36789 (diff) | |
| download | autoconf-8b5e2016c7ed2d67f31b03a3d2e361858ff5299b.tar.gz | |
Port to compilers that moan about K&R func decls
* lib/autoconf/c.m4 (AC_LANG_CALL, AC_LANG_FUNC_LINK_TRY):
Use '(void)' rather than '()' in function prototypes, as the latter
provokes fatal errors in some compilers nowadays.
* lib/autoconf/functions.m4 (AC_FUNC_STRTOD):
* tests/fortran.at (AC_F77_DUMMY_MAIN usage):
* tests/semantics.at (AC_CHECK_DECLS):
Don’t use () in a function decl.
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/autoconf/c.m4 | 6 | ||||
| -rw-r--r-- | lib/autoconf/functions.m4 | 3 |
2 files changed, 3 insertions, 6 deletions
diff --git a/lib/autoconf/c.m4 b/lib/autoconf/c.m4 index abbb83fe..4751c7f5 100644 --- a/lib/autoconf/c.m4 +++ b/lib/autoconf/c.m4 @@ -133,7 +133,7 @@ m4_if([$2], [main], , #ifdef __cplusplus extern "C" #endif -char $2 ();])], [return $2 ();])]) +char $2 (void);])], [return $2 ();])]) # AC_LANG_FUNC_LINK_TRY(C)(FUNCTION) @@ -157,7 +157,7 @@ m4_define([AC_LANG_FUNC_LINK_TRY(C)], #define $1 innocuous_$1 /* System header to define __stub macros and hopefully few prototypes, - which can conflict with char $1 (); below. */ + which can conflict with char $1 (void); below. */ #include <limits.h> #undef $1 @@ -168,7 +168,7 @@ m4_define([AC_LANG_FUNC_LINK_TRY(C)], #ifdef __cplusplus extern "C" #endif -char $1 (); +char $1 (void); /* The GNU C library defines this for functions which it implements to always fail with ENOSYS. Some functions are actually named something starting with __ and the normal name is an alias. */ diff --git a/lib/autoconf/functions.m4 b/lib/autoconf/functions.m4 index 9f44a1ce..ee519a38 100644 --- a/lib/autoconf/functions.m4 +++ b/lib/autoconf/functions.m4 @@ -1613,9 +1613,6 @@ AC_DEFUN([AC_FUNC_STRTOD], AC_CACHE_CHECK(for working strtod, ac_cv_func_strtod, [AC_RUN_IFELSE([AC_LANG_SOURCE([[ ]AC_INCLUDES_DEFAULT[ -#ifndef strtod -double strtod (); -#endif int main (void) { |