From fbb334a6acc5cc5d8944712daeda8089ef1d7fd2 Mon Sep 17 00:00:00 2001 From: Iain Sandoe Date: Mon, 23 Aug 2021 17:27:25 +0100 Subject: libiberty, configure, Darwin: Avoid detecting deprecated sbrk. Darwin provides an implementation of sbrk, which is detected by the configuration process. However, it is deprecated which leads to build warnings. The malloc-based implementation is more suitable. This patch removes sbrk from the functions searched for Darwin. Signed-off-by: Iain Sandoe libiberty/ChangeLog: * configure: Regenerate. * configure.ac: Do not search for sbrk on Darwin. * xmalloc.c: Do not declare sbrk unless it has been found by configure. --- libiberty/configure | 43 ++++++++++++++++++++----------------------- 1 file changed, 20 insertions(+), 23 deletions(-) (limited to 'libiberty/configure') diff --git a/libiberty/configure b/libiberty/configure index f7449d6..3c7e588 100755 --- a/libiberty/configure +++ b/libiberty/configure @@ -681,7 +681,6 @@ infodir docdir oldincludedir includedir -runstatedir localstatedir sharedstatedir sysconfdir @@ -761,7 +760,6 @@ datadir='${datarootdir}' sysconfdir='${prefix}/etc' sharedstatedir='${prefix}/com' localstatedir='${prefix}/var' -runstatedir='${localstatedir}/run' includedir='${prefix}/include' oldincludedir='/usr/include' docdir='${datarootdir}/doc/${PACKAGE}' @@ -1014,15 +1012,6 @@ do | -silent | --silent | --silen | --sile | --sil) silent=yes ;; - -runstatedir | --runstatedir | --runstatedi | --runstated \ - | --runstate | --runstat | --runsta | --runst | --runs \ - | --run | --ru | --r) - ac_prev=runstatedir ;; - -runstatedir=* | --runstatedir=* | --runstatedi=* | --runstated=* \ - | --runstate=* | --runstat=* | --runsta=* | --runst=* | --runs=* \ - | --run=* | --ru=* | --r=*) - runstatedir=$ac_optarg ;; - -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb) ac_prev=sbindir ;; -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \ @@ -1160,7 +1149,7 @@ fi for ac_var in exec_prefix prefix bindir sbindir libexecdir datarootdir \ datadir sysconfdir sharedstatedir localstatedir includedir \ oldincludedir docdir infodir htmldir dvidir pdfdir psdir \ - libdir localedir mandir runstatedir + libdir localedir mandir do eval ac_val=\$$ac_var # Remove trailing slashes. @@ -1313,7 +1302,6 @@ Fine tuning of the installation directories: --sysconfdir=DIR read-only single-machine data [PREFIX/etc] --sharedstatedir=DIR modifiable architecture-independent data [PREFIX/com] --localstatedir=DIR modifiable single-machine data [PREFIX/var] - --runstatedir=DIR modifiable per-process data [LOCALSTATEDIR/run] --libdir=DIR object code libraries [EPREFIX/lib] --includedir=DIR C header files [PREFIX/include] --oldincludedir=DIR C header files for non-gcc [/usr/include] @@ -4295,7 +4283,7 @@ else We can't simply define LARGE_OFF_T to be 9223372036854775807, since some C++ compilers masquerading as C compilers incorrectly reject 9223372036854775807. */ -#define LARGE_OFF_T ((((off_t) 1 << 31) << 31) - 1 + (((off_t) 1 << 31) << 31)) +#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62)) int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721 && LARGE_OFF_T % 2147483647 == 1) ? 1 : -1]; @@ -4341,7 +4329,7 @@ else We can't simply define LARGE_OFF_T to be 9223372036854775807, since some C++ compilers masquerading as C compilers incorrectly reject 9223372036854775807. */ -#define LARGE_OFF_T ((((off_t) 1 << 31) << 31) - 1 + (((off_t) 1 << 31) << 31)) +#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62)) int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721 && LARGE_OFF_T % 2147483647 == 1) ? 1 : -1]; @@ -4365,7 +4353,7 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext We can't simply define LARGE_OFF_T to be 9223372036854775807, since some C++ compilers masquerading as C compilers incorrectly reject 9223372036854775807. */ -#define LARGE_OFF_T ((((off_t) 1 << 31) << 31) - 1 + (((off_t) 1 << 31) << 31)) +#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62)) int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721 && LARGE_OFF_T % 2147483647 == 1) ? 1 : -1]; @@ -4410,7 +4398,7 @@ else We can't simply define LARGE_OFF_T to be 9223372036854775807, since some C++ compilers masquerading as C compilers incorrectly reject 9223372036854775807. */ -#define LARGE_OFF_T ((((off_t) 1 << 31) << 31) - 1 + (((off_t) 1 << 31) << 31)) +#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62)) int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721 && LARGE_OFF_T % 2147483647 == 1) ? 1 : -1]; @@ -4434,7 +4422,7 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext We can't simply define LARGE_OFF_T to be 9223372036854775807, since some C++ compilers masquerading as C compilers incorrectly reject 9223372036854775807. */ -#define LARGE_OFF_T ((((off_t) 1 << 31) << 31) - 1 + (((off_t) 1 << 31) << 31)) +#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62)) int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721 && LARGE_OFF_T % 2147483647 == 1) ? 1 : -1]; @@ -6029,9 +6017,16 @@ vars="sys_errlist sys_nerr sys_siglist" checkfuncs="__fsetlocking canonicalize_file_name dup3 getrlimit getrusage \ getsysinfo gettimeofday on_exit pipe2 psignal pstat_getdynamic pstat_getstatic \ - realpath setrlimit sbrk spawnve spawnvpe strerror strsignal sysconf sysctl \ + realpath setrlimit spawnve spawnvpe strerror strsignal sysconf sysctl \ sysmp table times wait3 wait4" +# Darwin has sbrk, but it is deprecated and that produces build-time warnings +# so do not check for it. +case "${host}" in + *-*-darwin*) ;; + *) checkfuncs="$checkfuncs sbrk" +esac + # These are neither executed nor required, but they help keep # autoheader happy without adding a bunch of text to acconfig.h. if test "x" = "y"; then @@ -7260,7 +7255,10 @@ fi cat >>confdefs.h <<_ACEOF #define HAVE_DECL_REALLOC $ac_have_decl _ACEOF -ac_fn_c_check_decl "$LINENO" "sbrk" "ac_cv_have_decl_sbrk" "$ac_includes_default" + + case "${host}" in + *-*-darwin*) ;; # Darwin's sbrk implementation is deprecated. + *) ac_fn_c_check_decl "$LINENO" "sbrk" "ac_cv_have_decl_sbrk" "$ac_includes_default" if test "x$ac_cv_have_decl_sbrk" = xyes; then : ac_have_decl=1 else @@ -7270,7 +7268,8 @@ fi cat >>confdefs.h <<_ACEOF #define HAVE_DECL_SBRK $ac_have_decl _ACEOF - +;; + esac ac_fn_c_check_decl "$LINENO" "strtol" "ac_cv_have_decl_strtol" "$ac_includes_default" if test "x$ac_cv_have_decl_strtol" = xyes; then : ac_have_decl=1 @@ -7575,8 +7574,6 @@ main () if (*(data + i) != *(data3 + i)) return 14; close (fd); - free (data); - free (data3); return 0; } _ACEOF -- cgit v1.1