vasilito
ff4ff35918
Red Bear OS is a full fork. All sources must be available from git clone with zero network access. Removed gitignore rules that excluded fetched source trees under recipes/*/source/, local/recipes/kde/*/source/, local/recipes/qt/*/source/, and vendor source trees. Build artifacts (target/, build/, source.tar, *.o, *.so) remain excluded. 127291 files added — kernel, relibc, base, bootloader, pkgar, all KDE/Qt frameworks, mesa, wayland, DRM drivers, and every other recipe source.
43 lines
1.6 KiB
Plaintext
43 lines
1.6 KiB
Plaintext
# sparcv8+.m4 serial 2
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dnl Copyright (C) 2020-2024 Free Software Foundation, Inc.
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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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dnl When compiling for SPARC in 32-bit mode, make sure that instructions for
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dnl SPARC v8+ are accepted. This is necessary for multiprocessing (for
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dnl instructions like 'membar' or 'cas'). All SPARC CPUs made since 1993
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dnl support this instruction set. But GCC in its default configuration, in
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dnl 32-bit mode (64-bit mode assumes SPARC v9 or newer), still defaults to
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dnl SPARC v7 instruction set: "By default (unless configured otherwise), GCC
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dnl generates code for the V7 variant of the SPARC architecture." See
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dnl <https://gcc.gnu.org/onlinedocs/gcc-4.6.4/gcc/SPARC-Options.html>
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dnl <https://gcc.gnu.org/onlinedocs/gcc-10.2.0/gcc/SPARC-Options.html>
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AC_DEFUN([gl_SPARC_V8PLUS],
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[
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AC_REQUIRE([AC_CANONICAL_HOST])
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case "$host" in
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sparc*-*-solaris*)
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if test -n "$GCC"; then
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AC_CACHE_CHECK([whether SPARC v8+ instructions are supported],
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[gl_cv_sparc_v8plus],
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[AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM(
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[[]],
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[[asm volatile ("membar 2");]])],
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[gl_cv_sparc_v8plus=yes],
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[gl_cv_sparc_v8plus=no])
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])
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if test $gl_cv_sparc_v8plus = no; then
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dnl Strangely enough, '-mv8plus' does not have the desired effect.
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dnl But '-mcpu=v9' does.
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CC="$CC -mcpu=v9"
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CXX="$CXX -mcpu=v9"
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fi
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fi
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;;
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esac
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])
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