1# Configure script for libada. 2# Copyright (C) 2003-2019 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 25 26AC_CONFIG_SRCDIR([Makefile.in]) 27 28# Determine the host, build, and target systems 29AC_CANONICAL_BUILD 30AC_CANONICAL_HOST 31AC_CANONICAL_TARGET 32target_alias=${target_alias-$host_alias} 33 34# Determine the noncanonical target name, for directory use. 35ACX_NONCANONICAL_TARGET 36 37# Determine the target- and build-specific subdirectories 38GCC_TOPLEV_SUBDIRS 39 40# Command-line options. 41# Very limited version of AC_MAINTAINER_MODE. 42AC_ARG_ENABLE([maintainer-mode], 43 [AC_HELP_STRING([--enable-maintainer-mode], 44 [enable make rules and dependencies not useful (and 45 sometimes confusing) to the casual installer])], 46 [case ${enable_maintainer_mode} in 47 yes) MAINT='' ;; 48 no) MAINT='#' ;; 49 *) AC_MSG_ERROR([--enable-maintainer-mode must be yes or no]) ;; 50 esac 51 maintainer_mode=${enableval}], 52 [MAINT='#']) 53AC_SUBST([MAINT])dnl 54 55AM_ENABLE_MULTILIB(, ..) 56# Calculate toolexeclibdir 57# Also toolexecdir, though it's only used in toolexeclibdir 58case ${enable_version_specific_runtime_libs} in 59 yes) 60 # Need the gcc compiler version to know where to install libraries 61 # and header files if --enable-version-specific-runtime-libs option 62 # is selected. 63 toolexecdir='$(libdir)/gcc/$(target_alias)' 64 toolexeclibdir='$(toolexecdir)/$(gcc_version)$(MULTISUBDIR)' 65 ;; 66 no) 67 if test -n "$with_cross_host" && 68 test x"$with_cross_host" != x"no"; then 69 # Install a library built with a cross compiler in tooldir, not libdir. 70 toolexecdir='$(exec_prefix)/$(target_alias)' 71 toolexeclibdir='$(toolexecdir)/lib' 72 else 73 toolexecdir='$(libdir)/gcc-lib/$(target_alias)' 74 toolexeclibdir='$(libdir)' 75 fi 76 multi_os_directory=`$CC -print-multi-os-directory` 77 case $multi_os_directory in 78 .) ;; # Avoid trailing /. 79 *) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;; 80 esac 81 ;; 82esac 83AC_SUBST(toolexecdir) 84AC_SUBST(toolexeclibdir) 85#TODO: toolexeclibdir is currently disregarded 86 87# Check the compiler. 88# The same as in boehm-gc and libstdc++. Have to borrow it from there. 89# We must force CC to /not/ be precious variables; otherwise 90# the wrong, non-multilib-adjusted value will be used in multilibs. 91# As a side effect, we have to subst CFLAGS ourselves. 92 93m4_rename([_AC_ARG_VAR_PRECIOUS],[real_PRECIOUS]) 94m4_define([_AC_ARG_VAR_PRECIOUS],[]) 95AC_PROG_CC 96m4_rename_force([real_PRECIOUS],[_AC_ARG_VAR_PRECIOUS]) 97 98AC_SUBST(CFLAGS) 99 100AC_ARG_ENABLE([shared], 101[AC_HELP_STRING([--disable-shared], 102 [don't provide a shared libgnat])], 103[ 104case $enable_shared in 105 yes | no) ;; 106 *) 107 enable_shared=no 108 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:," 109 for pkg in $enableval; do 110 case $pkg in 111 ada | libada) 112 enable_shared=yes ;; 113 esac 114 done 115 IFS="$ac_save_ifs" 116 ;; 117esac 118], [enable_shared=yes]) 119AC_SUBST([enable_shared]) 120 121GCC_PICFLAG 122AC_SUBST([PICFLAG]) 123 124# These must be passed down, or are needed by gcc/libgcc.mvars 125AC_PROG_AWK 126AC_PROG_LN_S 127 128# Determine what to build for 'gnatlib' 129if test ${enable_shared} = yes; then 130 default_gnatlib_target="gnatlib-shared" 131else 132 default_gnatlib_target="gnatlib" 133fi 134AC_SUBST([default_gnatlib_target]) 135 136# Check for _Unwind_GetIPInfo 137GCC_CHECK_UNWIND_GETIPINFO 138if test x$have_unwind_getipinfo = xyes; then 139 have_getipinfo=-DHAVE_GETIPINFO 140else 141 have_getipinfo= 142fi 143AC_SUBST([have_getipinfo]) 144 145# Check for <sys/capability.h> 146AC_CHECK_HEADER([sys/capability.h], have_capability=-DHAVE_CAPABILITY, have_capability=) 147AC_SUBST([have_capability]) 148 149# Determine what GCC version number to use in filesystem paths. 150GCC_BASE_VER 151 152# Output: create a Makefile. 153AC_CONFIG_FILES([Makefile]) 154 155AC_OUTPUT 156