As of release time, GNU 'make' 4.4.1 is the newest verified to work
to build the GNU C Library.
- * GCC 6.2 or newer
+ * GCC 12.1 or newer
- GCC 6.2 or higher is required. In general it is recommended to use
- the newest version of the compiler that is known to work for
+ GCC 12.1 or higher is required. In general it is recommended to
+ use the newest version of the compiler that is known to work for
building the GNU C Library, as newer compilers usually produce
better code. As of release time, GCC 14.2.1 is the newest compiler
verified to work to build the GNU C Library.
- For PowerPC 64-bits little-endian (powerpc64le), a GCC version with
- support for '-mno-gnu-attribute', '-mabi=ieeelongdouble', and
- '-mabi=ibmlongdouble' is required. Likewise, the compiler must
- also support passing '-mlong-double-128' with the preceding
- options. As of release, this implies GCC 7.4 and newer (excepting
- GCC 7.5.0, see GCC PR94200). These additional features are
- required for building the GNU C Library with support for IEEE long
- double.
-
- For ARC architecture builds, GCC 8.3 or higher is needed.
-
- For s390x architecture builds, GCC 7.1 or higher is needed (See gcc
- Bug 98269).
-
- For AArch64 architecture builds with mathvec enabled, GCC 10 or
- higher is needed due to dependency on arm_sve.h.
-
For multi-arch support it is recommended to use a GCC which has
been built with support for GNU indirect functions. This ensures
that correct debugging information is generated for functions
fi
+# Require GCC 12.1 to build.
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if $CC is sufficient to build libc" >&5
printf %s "checking if $CC is sufficient to build libc... " >&6; }
if test ${libc_cv_compiler_ok+y}
main (void)
{
-#if !defined __GNUC__ || __GNUC__ < 6 || (__GNUC__ == 6 && __GNUC_MINOR__ < 2)
+#if !defined __GNUC__ || __GNUC__ < 12 || (__GNUC__ == 12 && __GNUC_MINOR__ < 1)
#error insufficient compiler
#endif
;
[bison (GNU Bison) \([0-9]*\.[0-9.]*\)],
[2.7*|[3-9].*|[1-9][0-9]*], critic_missing="$critic_missing bison")
+# Require GCC 12.1 to build.
AC_CACHE_CHECK([if $CC is sufficient to build libc], libc_cv_compiler_ok, [
AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[]], [[
-#if !defined __GNUC__ || __GNUC__ < 6 || (__GNUC__ == 6 && __GNUC_MINOR__ < 2)
+#if !defined __GNUC__ || __GNUC__ < 12 || (__GNUC__ == 12 && __GNUC_MINOR__ < 1)
#error insufficient compiler
#endif]])],
[libc_cv_compiler_ok=yes],
to build @theglibc{}.
@item
-GCC 6.2 or newer
+GCC 12.1 or newer
-GCC 6.2 or higher is required. In general it is recommended to use
+GCC 12.1 or higher is required. In general it is recommended to use
the newest version of the compiler that is known to work for building
@theglibc{}, as newer compilers usually produce better code. As of
release time, GCC 14.2.1 is the newest compiler verified to work to build
@theglibc{}.
-For PowerPC 64-bits little-endian (powerpc64le), a GCC version with support
-for @option{-mno-gnu-attribute}, @option{-mabi=ieeelongdouble}, and
-@option{-mabi=ibmlongdouble} is required. Likewise, the compiler must also
-support passing @option{-mlong-double-128} with the preceding options. As
-of release, this implies GCC 7.4 and newer (excepting GCC 7.5.0, see GCC
-PR94200). These additional features are required for building the GNU C
-Library with support for IEEE long double.
-
-@c powerpc64le performs an autoconf test to verify the compiler compiles with
-@c commands like "$CC -c foo.c -mabi=ibmlongdouble -mlong-double-128".
-
-For ARC architecture builds, GCC 8.3 or higher is needed.
-
-For s390x architecture builds, GCC 7.1 or higher is needed (See gcc Bug 98269).
-
-For AArch64 architecture builds with mathvec enabled, GCC 10 or higher is needed
-due to dependency on arm_sve.h.
-
For multi-arch support it is recommended to use a GCC which has been built with
support for GNU indirect functions. This ensures that correct debugging
information is generated for functions selected by IFUNC resolvers. This
fi
-
-
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if $CC is sufficient to build libc on s390x" >&5
-printf %s "checking if $CC is sufficient to build libc on s390x... " >&6; }
-if test ${libc_cv_compiler_ok_on_s390x+y}
-then :
- printf %s "(cached) " >&6
-else case e in #(
- e)
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-
-int
-main (void)
-{
-
-#if !defined __GNUC__ || __GNUC__ < 7 || (__GNUC__ == 7 && __GNUC_MINOR__ < 1)
-#error insufficient compiler for building on s390x
-#endif
-
- ;
- return 0;
-}
-_ACEOF
-if ac_fn_c_try_cpp "$LINENO"
-then :
- libc_cv_compiler_ok_on_s390x=yes
-else case e in #(
- e) libc_cv_compiler_ok_on_s390x=no ;;
-esac
-fi
-rm -f conftest.err conftest.i conftest.$ac_ext ;;
-esac
-fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_compiler_ok_on_s390x" >&5
-printf "%s\n" "$libc_cv_compiler_ok_on_s390x" >&6; }
-if test "$libc_cv_compiler_ok_on_s390x" != yes; then
- critic_missing="$critic_missing On s390x, GCC >= 7.1.0 is required."
-fi
-
test -n "$critic_missing" && as_fn_error $? "
*** $critic_missing" "$LINENO" 5
AC_DEFINE(HAVE_S390_MIN_ARCH13_ZARCH_ASM_SUPPORT)
fi
-
-dnl test if GCC is new enough. See gcc "Bug 98269 - gcc 6.5.0
-dnl __builtin_add_overflow() with small uint32_t values incorrectly detects
-dnl overflow
-dnl (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98269)
-AC_CACHE_CHECK([if $CC is sufficient to build libc on s390x],
-libc_cv_compiler_ok_on_s390x, [
-AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[]], [[
-#if !defined __GNUC__ || __GNUC__ < 7 || (__GNUC__ == 7 && __GNUC_MINOR__ < 1)
-#error insufficient compiler for building on s390x
-#endif
-]])],
- [libc_cv_compiler_ok_on_s390x=yes],
- [libc_cv_compiler_ok_on_s390x=no])])
-if test "$libc_cv_compiler_ok_on_s390x" != yes; then
- critic_missing="$critic_missing On s390x, GCC >= 7.1.0 is required."
-fi
-
test -n "$critic_missing" && AC_MSG_ERROR([
*** $critic_missing])
# This file is generated from configure.ac by Autoconf. DO NOT EDIT!
# Local configure fragment for sysdeps/unix/sysv/linux/powerpc/.
-
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether $CC $CFLAGS -mlong-double-128 uses IBM extended format" >&5
-printf %s "checking whether $CC $CFLAGS -mlong-double-128 uses IBM extended format... " >&6; }
-if test ${libc_cv_mlong_double_128ibm+y}
-then :
- printf %s "(cached) " >&6
-else case e in #(
- e) save_CFLAGS="$CFLAGS"
-CFLAGS="$CFLAGS -mlong-double-128"
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-#include <float.h>
-int
-main (void)
-{
-
-#if LDBL_MANT_DIG != 106
-# error "compiler doesn't implement IBM extended format of long double"
-#endif
-long double foobar (long double x) { return x; }
- ;
- return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"
-then :
- libc_cv_mlong_double_128ibm=yes
-else case e in #(
- e) libc_cv_mlong_double_128ibm=no ;;
-esac
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-CFLAGS="$save_CFLAGS" ;;
-esac
-fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_mlong_double_128ibm" >&5
-printf "%s\n" "$libc_cv_mlong_double_128ibm" >&6; }
-
-if test "$libc_cv_mlong_double_128ibm" = no; then
- { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether $CC $CFLAGS supports -mabi=ibmlongdouble" >&5
-printf %s "checking whether $CC $CFLAGS supports -mabi=ibmlongdouble... " >&6; }
-if test ${libc_cv_mabi_ibmlongdouble+y}
-then :
- printf %s "(cached) " >&6
-else case e in #(
- e) save_CFLAGS="$CFLAGS"
- CFLAGS="$CFLAGS -mlong-double-128 -mabi=ibmlongdouble"
- cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-#include <float.h>
-int
-main (void)
-{
-
-#if LDBL_MANT_DIG != 106
-# error "compiler doesn't implement IBM extended format of long double"
-#endif
-long double foobar (long double x) { return x; }
- ;
- return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"
-then :
- libc_cv_mabi_ibmlongdouble=yes
-else case e in #(
- e) libc_cv_mabi_ibmlongdouble=no ;;
-esac
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
- CFLAGS="$save_CFLAGS" ;;
-esac
-fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_mabi_ibmlongdouble" >&5
-printf "%s\n" "$libc_cv_mabi_ibmlongdouble" >&6; }
-
- if test "$libc_cv_mabi_ibmlongdouble" = yes; then
- CFLAGS="$CFLAGS -mabi=ibmlongdouble"
- else
- as_fn_error $? "this configuration requires -mlong-double-128 IBM extended format support" "$LINENO" 5
- fi
-fi
-
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for linker that supports --no-tls-get-addr-optimize" >&5
printf %s "checking for linker that supports --no-tls-get-addr-optimize... " >&6; }
libc_linker_feature=no
GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
# Local configure fragment for sysdeps/unix/sysv/linux/powerpc/.
-AC_CACHE_CHECK(whether $CC $CFLAGS -mlong-double-128 uses IBM extended format,
- libc_cv_mlong_double_128ibm, [dnl
-save_CFLAGS="$CFLAGS"
-CFLAGS="$CFLAGS -mlong-double-128"
-AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <float.h>]], [[
-#if LDBL_MANT_DIG != 106
-# error "compiler doesn't implement IBM extended format of long double"
-#endif
-long double foobar (long double x) { return x; }]])],
- libc_cv_mlong_double_128ibm=yes,
- libc_cv_mlong_double_128ibm=no)
-CFLAGS="$save_CFLAGS"])
-
-if test "$libc_cv_mlong_double_128ibm" = no; then
- AC_CACHE_CHECK(whether $CC $CFLAGS supports -mabi=ibmlongdouble,
- libc_cv_mabi_ibmlongdouble, [dnl
- save_CFLAGS="$CFLAGS"
- CFLAGS="$CFLAGS -mlong-double-128 -mabi=ibmlongdouble"
- AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <float.h>]], [[
-#if LDBL_MANT_DIG != 106
-# error "compiler doesn't implement IBM extended format of long double"
-#endif
-long double foobar (long double x) { return x; }]])],
- libc_cv_mabi_ibmlongdouble=yes,
- libc_cv_mabi_ibmlongdouble=no)
- CFLAGS="$save_CFLAGS"])
-
- if test "$libc_cv_mabi_ibmlongdouble" = yes; then
- CFLAGS="$CFLAGS -mabi=ibmlongdouble"
- else
- AC_MSG_ERROR([this configuration requires -mlong-double-128 IBM extended format support])
- fi
-fi
-
LIBC_LINKER_FEATURE([--no-tls-get-addr-optimize], [-Wl,--no-tls-get-addr-optimize],
[libc_cv_tls_get_addr_optimize=yes], [libc_cv_tls_get_addr_optimize=no])
LIBC_CONFIG_VAR([have-tls-get-addr-optimize], [$libc_cv_tls_get_addr_optimize])
projects / thirdparty / glibc.git / commitdiff
