diff options
Diffstat (limited to 'dev-build/autoconf/files/autoconf-2.69-K-R-decls-clang.patch')
| -rw-r--r-- | dev-build/autoconf/files/autoconf-2.69-K-R-decls-clang.patch | 394 |
1 files changed, 394 insertions, 0 deletions
diff --git a/dev-build/autoconf/files/autoconf-2.69-K-R-decls-clang.patch b/dev-build/autoconf/files/autoconf-2.69-K-R-decls-clang.patch new file mode 100644 index 000000000000..77444ebc5be6 --- /dev/null +++ b/dev-build/autoconf/files/autoconf-2.69-K-R-decls-clang.patch @@ -0,0 +1,394 @@ +https://bugs.gentoo.org/870412 +https://git.savannah.gnu.org/cgit/autoconf.git/commit/?id=8b5e2016c7ed2d67f31b03a3d2e361858ff5299b +(and contains a backport of https://git.savannah.gnu.org/cgit/autoconf.git/commit/?id=bf5a75953b6d504f0405b1ca33b039b8dd39eef4) + +Backport the K&R decls fix to 2.69 to avoid configure tests +failing (often "silently", i.e. doesn't fail the build of +the package overall, just leads to wrong results) with +newer compilers like the upcoming Clang 16. + +From e6f401b94b58bb9bb58cd668a996e27663d3e6c7 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Arsen=20Arsenovi=C4=87?= <arsen@aarsen.me> +Date: Mon, 19 Sep 2022 12:11:24 +0200 +Subject: [PATCH] backport K&R decl fixes + +--- a/lib/autoconf/c.m4 ++++ b/lib/autoconf/c.m4 +@@ -97,7 +97,7 @@ m4_define([AC_LANG_PROGRAM(C)], + m4_ifdef([_AC_LANG_PROGRAM_C_F77_HOOKS], [_AC_LANG_PROGRAM_C_F77_HOOKS])[]dnl + m4_ifdef([_AC_LANG_PROGRAM_C_FC_HOOKS], [_AC_LANG_PROGRAM_C_FC_HOOKS])[]dnl + int +-main () ++main (void) + { + dnl Do *not* indent the following line: there may be CPP directives. + dnl Don't move the `;' right after for the same reason. +@@ -130,7 +130,7 @@ 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) +@@ -154,7 +154,7 @@ 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. + Prefer <limits.h> to <assert.h> if __STDC__ is defined, since + <limits.h> exists even on freestanding compilers. */ + +@@ -172,7 +172,7 @@ 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. */ +@@ -201,8 +201,8 @@ return test_array @<:@0@:>@; + # But we include them only after the EXPRESSION has been evaluated. + m4_define([AC_LANG_INT_SAVE(C)], + [AC_LANG_PROGRAM([$1 +-static long int longval () { return $2; } +-static unsigned long int ulongval () { return $2; } ++static long int longval (void) { return $2; } ++static unsigned long int ulongval (void) { return $2; } + @%:@include <stdio.h> + @%:@include <stdlib.h>], + [ +@@ -1625,8 +1625,8 @@ for ac_kw in inline __inline__ __inline; do + AC_COMPILE_IFELSE([AC_LANG_SOURCE( + [#ifndef __cplusplus + typedef int foo_t; +-static $ac_kw foo_t static_foo () {return 0; } +-$ac_kw foo_t foo () {return 0; } ++static $ac_kw foo_t static_foo (void) {return 0; } ++$ac_kw foo_t foo (void) {return 0; } + #endif + ])], + [ac_cv_c_inline=$ac_kw]) +@@ -1949,7 +1949,7 @@ m4_define([_AC_LANG_OPENMP(C)], + choke me + #endif + #include <omp.h> +-int main () { return omp_get_num_threads (); } ++int main (void) { return omp_get_num_threads (); } + ]) + + # _AC_LANG_OPENMP(C++) +--- a/lib/autoconf/functions.m4 ++++ b/lib/autoconf/functions.m4 +@@ -463,9 +463,6 @@ AC_CACHE_CHECK([whether closedir returns void], + [ac_cv_func_closedir_void], + [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT + #include <$ac_header_dirent> +-#ifndef __cplusplus +-int closedir (); +-#endif + ], + [[return closedir (opendir (".")) != 0;]])], + [ac_cv_func_closedir_void=no], +@@ -893,7 +890,7 @@ AC_CACHE_CHECK([for GNU libc compatible malloc], ac_cv_func_malloc_0_nonnull, + [[#if defined STDC_HEADERS || defined HAVE_STDLIB_H + # include <stdlib.h> + #else +-char *malloc (); ++char *malloc (long); + #endif + ]], + [return ! malloc (0);])], +@@ -1029,7 +1026,7 @@ static const char *tz_strings[] = { + /* Return 0 if mktime fails to convert a date in the spring-forward gap. + Based on a problem report from Andreas Jaeger. */ + static int +-spring_forward_gap () ++spring_forward_gap (void) + { + /* glibc (up to about 1998-10-07) failed this test. */ + struct tm tm; +@@ -1066,7 +1063,7 @@ mktime_test (time_t now) + } + + static int +-irix_6_4_bug () ++irix_6_4_bug (void) + { + /* Based on code from Ariel Faigon. */ + struct tm tm; +@@ -1108,7 +1105,7 @@ bigtime_test (int j) + } + + static int +-year_2050_test () ++year_2050_test (void) + { + /* The correct answer for 2050-02-01 00:00:00 in Pacific time, + ignoring leap seconds. */ +@@ -1138,7 +1135,7 @@ year_2050_test () + } + + int +-main () ++main (void) + { + time_t t, delta; + int i, j; +@@ -1232,7 +1229,7 @@ AC_CACHE_CHECK([for working mmap], [ac_cv_func_mmap_fixed_mapped], + #include <sys/mman.h> + + #if !defined STDC_HEADERS && !defined HAVE_STDLIB_H +-char *malloc (); ++char *malloc (void *, long); + #endif + + /* This mess was copied from the GNU getpagesize.h. */ +@@ -1268,7 +1265,7 @@ char *malloc (); + #endif /* no HAVE_GETPAGESIZE */ + + int +-main () ++main (void) + { + char *data, *data2, *data3; + const char *cdata2; +@@ -1398,7 +1395,7 @@ AC_CACHE_CHECK([for GNU libc compatible realloc], ac_cv_func_realloc_0_nonnull, + [[#if defined STDC_HEADERS || defined HAVE_STDLIB_H + # include <stdlib.h> + #else +-char *realloc (); ++char *realloc (void *, long); + #endif + ]], + [return ! realloc (0, 0);])], +@@ -1547,11 +1544,8 @@ 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() ++main(void) + { + { + /* Some versions of Linux strtod mis-parse strings with leading '+'. */ +@@ -1645,8 +1639,7 @@ AC_CACHE_CHECK([whether strerror_r returns char *], + # former has a strerror_r that returns char*, while the latter + # has a strerror_r that returns `int'. + # This test should segfault on the DEC system. +- AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT +- extern char *strerror_r ();], ++ AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT], + [[char buf[100]; + char x = *strerror_r (0, buf, sizeof buf); + return ! isalpha (x);]])], +@@ -1879,7 +1872,7 @@ sparc_address_test (arg) int arg; + } + + int +-main () ++main (void) + { + pid_t parent = getpid (); + pid_t child; +@@ -1985,7 +1978,7 @@ AC_CACHE_CHECK([for wait3 that fills in rusage], + #include <sys/wait.h> + /* HP-UX has wait3 but does not fill in rusage at all. */ + int +-main () ++main (void) + { + struct rusage r; + int i; +--- a/lib/autoconf/headers.m4 ++++ b/lib/autoconf/headers.m4 +@@ -712,7 +712,7 @@ if test $ac_cv_header_stdc = yes; then + + #define XOR(e, f) (((e) && !(f)) || (!(e) && (f))) + int +-main () ++main (void) + { + int i; + for (i = 0; i < 256; i++) +--- a/lib/autoconf/specific.m4 ++++ b/lib/autoconf/specific.m4 +@@ -257,7 +257,7 @@ void ucatch (dummy) int dummy; { } + #endif + + int +-main () ++main (void) + { + int i = fork (), status; + +--- a/lib/autoconf/types.m4 ++++ b/lib/autoconf/types.m4 +@@ -267,7 +267,7 @@ AC_CACHE_CHECK(type of array argument to getgroups, ac_cv_type_getgroups, + #define MAX(x, y) ((x) > (y) ? (x) : (y)) + + int +-main () ++main (void) + { + gid_t gidset[NGID]; + int i, n; +--- a/tests/c.at ++++ b/tests/c.at +@@ -354,7 +354,7 @@ AT_DATA([foo.c], + #endif + #include <stdio.h> + +-int main () ++int main (void) + { + #ifdef _OPENMP + #pragma omp parallel +@@ -404,7 +404,7 @@ foo.@OBJEXT@: foo.cpp + ]]) + + AT_DATA([foo.cpp], +-[[int main () ++[[int main (void) + { + return 0; + } +--- a/tests/compile.at ++++ b/tests/compile.at +@@ -124,7 +124,7 @@ AC_PROG_CC + AC_COMPILE_IFELSE([AC_LANG_SOURCE([[#ifndef PACKAGE_NAME + choke me + #endif +-int main () ++int main (void) + { + return 0; + } +@@ -150,7 +150,7 @@ AC_LANG([C++]) + AC_COMPILE_IFELSE([AC_LANG_SOURCE([[#ifndef PACKAGE_NAME + choke me + #endif +-int main () ++int main (void) + { + return 0; + } +@@ -249,7 +249,7 @@ AT_CHECK([sed -n 's/ *$//; /#define PACKAGE/,$p' stdout], [], + + const char hw[] = "Hello, World\n"; + int +-main () ++main (void) + { + fputs (hw, stdout); + ; +@@ -269,7 +269,7 @@ AT_KEYWORDS([AC_LANG_DEFINES_PROVIDED]) + + AT_DATA([configure.ac], + [[AC_INIT +-AC_COMPILE_IFELSE([int main () { return 0; }], [], ++AC_COMPILE_IFELSE([int main (void) { return 0; }], [], + [AC_MSG_ERROR([compiling trivial program failed])]) + ]]) + +@@ -280,7 +280,7 @@ AT_CHECK_CONFIGURE([-q]) + + AT_DATA([configure.ac], + [[AC_INIT +-AC_COMPILE_IFELSE([AC_LANG_DEFINES_PROVIDED()int main () { return 0; }], [], ++AC_COMPILE_IFELSE([AC_LANG_DEFINES_PROVIDED()int main (void) { return 0; }], [], + [AC_MSG_ERROR([compiling trivial program failed])]) + ]]) + +@@ -324,7 +324,7 @@ test $estatus != 2 && + AC_MSG_ERROR([did not get as 2 exit status: $estatus])]) + + # The old stinky one. +-AC_TRY_RUN([int main () { return 3; }], ++AC_TRY_RUN([int main (void) { return 3; }], + [AC_MSG_ERROR([saw `return 3' as a success])], + [estatus=$? + test $estatus != 3 && +--- a/tests/fortran.at ++++ b/tests/fortran.at +@@ -223,7 +223,7 @@ void FOOBAR_F77 (double *x, double *y); + # ifdef __cplusplus + extern "C" + # endif +- int F77_DUMMY_MAIN () { return 1; } ++ int F77_DUMMY_MAIN (void) { return 1; } + #endif + + int main(int argc, char *argv[]) +@@ -301,7 +301,7 @@ void FOOBAR_FC(double *x, double *y); + # ifdef __cplusplus + extern "C" + # endif +- int FC_DUMMY_MAIN () { return 1; } ++ int FC_DUMMY_MAIN (void) { return 1; } + #endif + + int main (int argc, char *argv[]) +@@ -533,7 +533,7 @@ void @foobar@ (int *x); + # ifdef __cplusplus + extern "C" + # endif +- int F77_DUMMY_MAIN () { return 1; } ++ int F77_DUMMY_MAIN (void) { return 1; } + #endif + + int main(int argc, char *argv[]) +@@ -607,7 +607,7 @@ void @foobar@ (int *x); + # ifdef __cplusplus + extern "C" + # endif +- int FC_DUMMY_MAIN () { return 1; } ++ int FC_DUMMY_MAIN (void) { return 1; } + #endif + + int main(int argc, char *argv[]) +--- a/tests/semantics.at ++++ b/tests/semantics.at +@@ -107,7 +107,7 @@ AT_CHECK_MACRO([AC_CHECK_DECLS], + [[int yes = 1; + enum { myenum }; + struct { int x[20]; } mystruct; +- extern int myfunc(); ++ extern int myfunc (void); + #define mymacro1(arg) arg + #define mymacro2]]) + # The difference in space-before-open-paren is intentional. +--- a/lib/autoconf/c.m4 ++++ b/lib/autoconf/c.m4 +@@ -1106,9 +1106,7 @@ struct stat; + /* Most of the following tests are stolen from RCS 5.7's src/conf.sh. */ + struct buf { int x; }; + FILE * (*rcsopen) (struct buf *, struct stat *, int); +-static char *e (p, i) +- char **p; +- int i; ++static char *e (char **p, int i) + { + return p[i]; + } +--- a/lib/autoconf/specific.m4 ++++ b/lib/autoconf/specific.m4 +@@ -251,10 +251,9 @@ AC_INCLUDES_DEFAULT + /* Some platforms explicitly require an extern "C" signal handler + when using C++. */ + #ifdef __cplusplus +-extern "C" void ucatch (int dummy) { } +-#else +-void ucatch (dummy) int dummy; { } ++extern "C" + #endif ++void ucatch (int dummy) { } + + int + main (void) |