1# Configure script for libada. 2# Copyright (C) 2003-2016 Free Software Foundation, Inc. 3# 4# This file is free software; you can redistribute it and/or modify it 5# under the terms of the GNU General Public License as published by 6# the Free Software Foundation; either version 3 of the License, or 7# (at your option) any later version. 8# 9# This program is distributed in the hope that it will be useful, but 10# WITHOUT ANY WARRANTY; without even the implied warranty of 11# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12# General Public License for more details. 13# 14# You should have received a copy of the GNU General Public License 15# along with this program; see the file COPYING3. If not see 16# <http://www.gnu.org/licenses/>. 17 18sinclude(../config/acx.m4) 19sinclude(../config/multi.m4) 20sinclude(../config/override.m4) 21sinclude(../config/picflag.m4) 22sinclude(../config/unwind_ipinfo.m4) 23 24AC_INIT 25AC_PREREQ([2.64]) 26 27AC_CONFIG_SRCDIR([Makefile.in]) 28 29# Determine the host, build, and target systems 30AC_CANONICAL_BUILD 31AC_CANONICAL_HOST 32AC_CANONICAL_TARGET 33target_alias=${target_alias-$host_alias} 34 35# Determine the noncanonical target name, for directory use. 36ACX_NONCANONICAL_TARGET 37 38# Determine the target- and build-specific subdirectories 39GCC_TOPLEV_SUBDIRS 40 41# Command-line options. 42# Very limited version of AC_MAINTAINER_MODE. 43AC_ARG_ENABLE([maintainer-mode], 44 [AC_HELP_STRING([--enable-maintainer-mode], 45 [enable make rules and dependencies not useful (and 46 sometimes confusing) to the casual installer])], 47 [case ${enable_maintainer_mode} in 48 yes) MAINT='' ;; 49 no) MAINT='#' ;; 50 *) AC_MSG_ERROR([--enable-maintainer-mode must be yes or no]) ;; 51 esac 52 maintainer_mode=${enableval}], 53 [MAINT='#']) 54AC_SUBST([MAINT])dnl 55 56AM_ENABLE_MULTILIB(, ..) 57# Calculate toolexeclibdir 58# Also toolexecdir, though it's only used in toolexeclibdir 59case ${enable_version_specific_runtime_libs} in 60 yes) 61 # Need the gcc compiler version to know where to install libraries 62 # and header files if --enable-version-specific-runtime-libs option 63 # is selected. 64 toolexecdir='$(libdir)/gcc/$(target_alias)' 65 toolexeclibdir='$(toolexecdir)/$(gcc_version)$(MULTISUBDIR)' 66 ;; 67 no) 68 if test -n "$with_cross_host" && 69 test x"$with_cross_host" != x"no"; then 70 # Install a library built with a cross compiler in tooldir, not libdir. 71 toolexecdir='$(exec_prefix)/$(target_alias)' 72 toolexeclibdir='$(toolexecdir)/lib' 73 else 74 toolexecdir='$(libdir)/gcc-lib/$(target_alias)' 75 toolexeclibdir='$(libdir)' 76 fi 77 multi_os_directory=`$CC -print-multi-os-directory` 78 case $multi_os_directory in 79 .) ;; # Avoid trailing /. 80 *) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;; 81 esac 82 ;; 83esac 84AC_SUBST(toolexecdir) 85AC_SUBST(toolexeclibdir) 86#TODO: toolexeclibdir is currently disregarded 87 88# Check the compiler. 89# The same as in boehm-gc and libstdc++. Have to borrow it from there. 90# We must force CC to /not/ be precious variables; otherwise 91# the wrong, non-multilib-adjusted value will be used in multilibs. 92# As a side effect, we have to subst CFLAGS ourselves. 93 94m4_rename([_AC_ARG_VAR_PRECIOUS],[real_PRECIOUS]) 95m4_define([_AC_ARG_VAR_PRECIOUS],[]) 96AC_PROG_CC 97m4_rename_force([real_PRECIOUS],[_AC_ARG_VAR_PRECIOUS]) 98 99AC_SUBST(CFLAGS) 100 101AC_ARG_ENABLE([shared], 102[AC_HELP_STRING([--disable-shared], 103 [don't provide a shared libgnat])], 104[ 105case $enable_shared in 106 yes | no) ;; 107 *) 108 enable_shared=no 109 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:," 110 for pkg in $enableval; do 111 case $pkg in 112 ada | libada) 113 enable_shared=yes ;; 114 esac 115 done 116 IFS="$ac_save_ifs" 117 ;; 118esac 119], [enable_shared=yes]) 120AC_SUBST([enable_shared]) 121 122GCC_PICFLAG 123AC_SUBST([PICFLAG]) 124 125# These must be passed down, or are needed by gcc/libgcc.mvars 126AC_PROG_AWK 127AC_PROG_LN_S 128 129# Determine what to build for 'gnatlib' 130if test ${enable_shared} = yes; then 131 default_gnatlib_target="gnatlib-shared" 132else 133 default_gnatlib_target="gnatlib-plain" 134fi 135AC_SUBST([default_gnatlib_target]) 136 137# Check for _Unwind_GetIPInfo 138GCC_CHECK_UNWIND_GETIPINFO 139if test x$have_unwind_getipinfo = xyes; then 140 have_getipinfo=-DHAVE_GETIPINFO 141else 142 have_getipinfo= 143fi 144AC_SUBST([have_getipinfo]) 145 146# Output: create a Makefile. 147AC_CONFIG_FILES([Makefile]) 148 149AC_OUTPUT 150