projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| c2783492 MF |
1 | dnl Copyright (C) 1997-2021 Free Software Foundation, Inc. |
| 2 | dnl | |
| 3 | dnl This program is free software; you can redistribute it and/or modify | |
| 4 | dnl it under the terms of the GNU General Public License as published by | |
| 5 | dnl the Free Software Foundation; either version 3 of the License, or | |
| 6 | dnl (at your option) any later version. | |
| 7 | dnl | |
| 8 | dnl This program is distributed in the hope that it will be useful, | |
| 9 | dnl but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 10 | dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 11 | dnl GNU General Public License for more details. | |
| 12 | dnl | |
| 13 | dnl You should have received a copy of the GNU General Public License | |
| 14 | dnl along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 15 | dnl | |
| 16 | dnl Setup the toolchain variables. | |
| 17 | AC_DEFUN([SIM_AC_TOOLCHAIN], | |
| 18 | [dnl | |
| 19 | AC_CANONICAL_SYSTEM | |
| 20 | AC_USE_SYSTEM_EXTENSIONS | |
| 21 | AC_REQUIRE([AC_PROG_CC]) | |
| 22 | AC_REQUIRE([AC_PROG_CPP]) | |
| 23 | AC_C_BIGENDIAN | |
| 24 | AC_ARG_PROGRAM | |
| 25 | AC_PROG_INSTALL | |
| 26 | ||
| 27 | dnl Setup toolchain settings for build-time tools.. | |
| 28 | if test "x$cross_compiling" = "xno"; then | |
| aa0fca16 | 29 | : "${AR_FOR_BUILD:=\$(AR)}" |
| c2783492 | 30 | : "${CC_FOR_BUILD:=\$(CC)}" |
| aa0fca16 | 31 | : "${RANLIB_FOR_BUILD:=\$(RANLIB)}" |
| c2783492 MF |
32 | : "${CFLAGS_FOR_BUILD:=\$(CFLAGS)}" |
| 33 | : "${LDFLAGS_FOR_BUILD:=\$(LDFLAGS)}" | |
| 34 | else | |
| aa0fca16 | 35 | : "${AR_FOR_BUILD:=ar}" |
| c2783492 | 36 | : "${CC_FOR_BUILD:=gcc}" |
| aa0fca16 | 37 | : "${RANLIB_FOR_BUILD:=ranlib}" |
| c2783492 MF |
38 | : "${CFLAGS_FOR_BUILD:=-g -O}" |
| 39 | : "${LDLFAGS_FOR_BUILD:=}" | |
| 40 | fi | |
| aa0fca16 | 41 | AC_SUBST(AR_FOR_BUILD) |
| c2783492 | 42 | AC_SUBST(CC_FOR_BUILD) |
| aa0fca16 | 43 | AC_SUBST(RANLIB_FOR_BUILD) |
| c2783492 MF |
44 | AC_SUBST(CFLAGS_FOR_BUILD) |
| 45 | AC_SUBST(LDFLAGS_FOR_BUILD) | |
| 46 | ||
| 47 | AC_SUBST(CFLAGS) | |
| 48 | AC_CHECK_TOOL(AR, ar) | |
| 49 | AC_PROG_RANLIB | |
| 50 | ||
| 51 | # Require C11 or newer. Autoconf-2.70 provides ac_cv_prog_cc_c11 when using | |
| 52 | # AC_PROG_CC, but we're still using Autoconf-2.69, and the newest it understands | |
| 53 | # is C99. So handle it ourselves. | |
| 54 | m4_version_prereq([2.70], [AC_MSG_ERROR([clean this up!])], [:]) | |
| 55 | C_DIALECT= | |
| 56 | AC_MSG_CHECKING([whether C11 is supported by default]) | |
| 57 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([ | |
| 58 | #if !defined __STDC_VERSION__ || __STDC_VERSION__ < 201112L | |
| 59 | # error "C11 support not found" | |
| 60 | #endif | |
| 61 | ])], [AC_MSG_RESULT([yes])], [ | |
| 62 | AC_MSG_RESULT([no]) | |
| 63 | AC_MSG_CHECKING([for -std=c11 support]) | |
| 64 | ac_save_CC="$CC" | |
| 65 | CC="$CC -std=c11" | |
| 66 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([ | |
| 67 | #if !defined __STDC_VERSION__ || __STDC_VERSION__ < 201112L | |
| 68 | # error "C11 support not found" | |
| 69 | #endif | |
| 70 | ])], [ | |
| 71 | AC_MSG_RESULT([yes]) | |
| 72 | CC="$ac_save_CC" | |
| 73 | C_DIALECT="-std=c11" | |
| 74 | ], [AC_MSG_ERROR([C11 is required])])]) | |
| 75 | AC_SUBST(C_DIALECT) | |
| 76 | ]) |