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https://sourceware.org/git/binutils-gdb.git
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fde7c6bf64
In order to merge more common/ files into the top-level, we need to add more host flags to CPPFLAGS, and that conflicts with our current use with build-time tools. So split them apart like we do with all other build flags to avoid the issue.
115 lines
3.7 KiB
Plaintext
115 lines
3.7 KiB
Plaintext
dnl Copyright (C) 1997-2022 Free Software Foundation, Inc.
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dnl
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dnl This program is free software; you can redistribute it and/or modify
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dnl it under the terms of the GNU General Public License as published by
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dnl the Free Software Foundation; either version 3 of the License, or
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dnl (at your option) any later version.
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dnl
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dnl This program is distributed in the hope that it will be useful,
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dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
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dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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dnl GNU General Public License for more details.
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dnl
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dnl You should have received a copy of the GNU General Public License
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dnl along with this program. If not, see <http://www.gnu.org/licenses/>.
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dnl
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dnl Setup the toolchain variables.
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AC_DEFUN([SIM_AC_TOOLCHAIN],
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[dnl
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AC_CANONICAL_SYSTEM
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AC_USE_SYSTEM_EXTENSIONS
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AC_REQUIRE([AC_PROG_CC])
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AC_REQUIRE([AC_PROG_CPP])
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AC_C_BIGENDIAN
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AC_ARG_PROGRAM
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AC_PROG_INSTALL
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AC_CHECK_TOOL(DTC, dtc)
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dnl Setup toolchain settings for build-time tools..
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if test "x$cross_compiling" = "xno"; then
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: "${AR_FOR_BUILD:=\$(AR)}"
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: "${CC_FOR_BUILD:=\$(CC)}"
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: "${RANLIB_FOR_BUILD:=\$(RANLIB)}"
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: "${CFLAGS_FOR_BUILD:=\$(CFLAGS)}"
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: "${CPPFLAGS_FOR_BUILD:=\$(CPPFLAGS)}"
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: "${LDFLAGS_FOR_BUILD:=\$(LDFLAGS)}"
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else
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: "${AR_FOR_BUILD:=ar}"
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: "${CC_FOR_BUILD:=gcc}"
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: "${RANLIB_FOR_BUILD:=ranlib}"
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: "${CFLAGS_FOR_BUILD:=-g -O}"
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: "${CPPFLAGS_FOR_BUILD:=}"
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: "${LDLFAGS_FOR_BUILD:=}"
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fi
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AC_SUBST(AR_FOR_BUILD)
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AC_SUBST(CC_FOR_BUILD)
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AC_SUBST(RANLIB_FOR_BUILD)
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AC_SUBST(CFLAGS_FOR_BUILD)
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AC_SUBST(CPPFLAGS_FOR_BUILD)
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AC_SUBST(LDFLAGS_FOR_BUILD)
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AC_SUBST(CFLAGS)
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AC_CHECK_TOOL(AR, ar)
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AC_PROG_RANLIB
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PKG_PROG_PKG_CONFIG
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# Require C11 or newer. Autoconf-2.70 provides ac_cv_prog_cc_c11 when using
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# AC_PROG_CC, but we're still using Autoconf-2.69, and the newest it understands
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# is C99. So handle it ourselves.
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m4_version_prereq([2.70], [AC_MSG_ERROR([clean this up!])], [:])
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C_DIALECT=
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AC_MSG_CHECKING([whether C11 is supported by default])
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AC_COMPILE_IFELSE([AC_LANG_SOURCE([
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#if !defined __STDC_VERSION__ || __STDC_VERSION__ < 201112L
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# error "C11 support not found"
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#endif
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])], [AC_MSG_RESULT([yes])], [
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AC_MSG_RESULT([no])
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AC_MSG_CHECKING([for -std=c11 support])
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ac_save_CC="$CC"
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CC="$CC -std=c11"
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AC_COMPILE_IFELSE([AC_LANG_SOURCE([
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#if !defined __STDC_VERSION__ || __STDC_VERSION__ < 201112L
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# error "C11 support not found"
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#endif
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])], [
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AC_MSG_RESULT([yes])
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CC="$ac_save_CC"
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C_DIALECT="-std=c11"
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], [AC_MSG_ERROR([C11 is required])])])
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AC_SUBST(C_DIALECT)
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])
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dnl
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AC_DEFUN([SIM_AC_CHECK_TOOLCHAIN_FOR_PRIMARY_TARGET],
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[dnl
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GCC_TARGET_TOOL([cc], [CC_FOR_TARGET], [CC], [${target_alias}-gcc])
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GCC_TARGET_TOOL([as], [AS_FOR_TARGET], [AS], [\$(abs_builddir)/../gas/as-new])
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GCC_TARGET_TOOL([ld], [LD_FOR_TARGET], [LD], [\$(abs_builddir)/../ld/ld-new])
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])
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SIM_TOOLCHAIN_VARS=
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AC_SUBST(SIM_TOOLCHAIN_VARS)
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AC_DEFUN([_SIM_AC_TOOLCHAIN_FOR_TARGET],
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[dnl
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AC_REQUIRE([SIM_AC_CHECK_TOOLCHAIN_FOR_PRIMARY_TARGET])
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AC_ARG_VAR(AS_FOR_TARGET_$2, [Assembler for $1 tests])
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AC_ARG_VAR(LD_FOR_TARGET_$2, [Linker for $1 tests])
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AC_ARG_VAR(CC_FOR_TARGET_$2, [C compiler for $1 tests])
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m4_bmatch($1, [example-], [dnl
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: "${AS_FOR_TARGET_$2:=\$(AS_FOR_TARGET)}"
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: "${LD_FOR_TARGET_$2:=\$(LD_FOR_TARGET)}"
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: "${CC_FOR_TARGET_$2:=\$(CC)}"
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], [dnl
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AS_IF([test "$SIM_PRIMARY_TARGET" = "$1"], [dnl
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: "${AS_FOR_TARGET_$2:=\$(AS_FOR_TARGET)}"
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: "${LD_FOR_TARGET_$2:=\$(LD_FOR_TARGET)}"
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: "${CC_FOR_TARGET_$2:=\$(CC_FOR_TARGET)}"
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])
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])
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AS_VAR_APPEND([SIM_TOOLCHAIN_VARS], [" AS_FOR_TARGET_$2 LD_FOR_TARGET_$2 CC_FOR_TARGET_$2"])
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])
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AC_DEFUN([SIM_AC_TOOLCHAIN_FOR_TARGET],
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[_SIM_AC_TOOLCHAIN_FOR_TARGET($1, m4_toupper(m4_translit($1, [-], [_])))])
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