399 lines
10 KiB
Plaintext
399 lines
10 KiB
Plaintext
dnl Process this file with autoconf to produce a configure script.
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AC_INIT([libgloss],[LIBGLOSS_VERSION])
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AC_CONFIG_HEADER(config.h)
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if test "${enable_shared}" = "yes" ; then
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AC_MSG_WARN([Shared libraries not supported for cross compiling, ignored])
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fi
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AC_CONFIG_AUX_DIR(..)
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dnl Support --disable-newlib-supplied-syscalls
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dnl NB: This is kept in sync with the newlib/acinclude.m4 option code.
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AC_ARG_ENABLE(newlib-supplied-syscalls,
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[ --disable-newlib-supplied-syscalls disable newlib from supplying syscalls],
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[case "${enableval}" in
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yes) newlib_may_supply_syscalls=yes ;;
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no) newlib_may_supply_syscalls=no ;;
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*) AC_MSG_ERROR(bad value ${enableval} for newlib-supplied-syscalls option) ;;
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esac], [newlib_may_supply_syscalls=yes])dnl
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AM_CONDITIONAL(MAY_SUPPLY_SYSCALLS, test x[$]{newlib_may_supply_syscalls} = xyes)
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AC_PROG_INSTALL
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AC_CANONICAL_SYSTEM
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AM_INIT_AUTOMAKE([foreign no-dist no-define subdir-objects 1.15.1])
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AM_MAINTAINER_MODE
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AM_SILENT_RULES(yes)
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if test -z "${with_multisubdir}"; then
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have_multisubdir=no
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else
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have_multisubdir=yes
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fi
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AM_CONDITIONAL(HAVE_DOC, test x$have_multisubdir = xno)
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AM_CONDITIONAL(HAVE_MULTISUBDIR, test x$have_multisubdir = xyes)
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AC_NO_EXECUTABLES
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dnl indicates whether to run configure within the testsuite subdirectory
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config_testsuite=true
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dnl indicates whether to run configure within the libnosys subdirectory
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config_libnosys=true
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host_makefile_frag=${srcdir}/config/default.mh
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target_makefile_frag=${srcdir}/config/default.mt
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case "${target}" in
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aarch64*-*-*)
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config_aarch64=true
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config_testsuite=true
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;;
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arc*-*-*)
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config_arc=true
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;;
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csky*-*-*)
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config_csky=true
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;;
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epiphany-*-*)
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AC_CONFIG_FILES([epiphany/Makefile])
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subdirs="$subdirs epiphany"
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config_testsuite=true
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;;
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i[[3456]]86-*-elf* | i[[3456]]86-*-coff*)
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AC_CONFIG_FILES([i386/Makefile])
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subdirs="$subdirs i386"
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;;
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m32r-*-*)
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AC_CONFIG_FILES([m32r/Makefile])
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subdirs="$subdirs m32r"
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;;
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m68hc11-*-* | m6811-*-* | m68hc12-*-* | m6812-*-*)
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AC_CONFIG_FILES([m68hc11/Makefile])
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subdirs="$subdirs m68hc11"
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;;
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nds32*-*-*)
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AC_CONFIG_FILES([nds32/Makefile])
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subdirs="$subdirs nds32"
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;;
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fido-*-* | m68*-*-*)
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AC_CONFIG_FILES([m68k/Makefile])
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subdirs="$subdirs m68k"
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;;
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hppa*-*-pro*)
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AC_CONFIG_FILES([pa/Makefile])
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subdirs="$subdirs pa"
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;;
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i960-*-coff)
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AC_CONFIG_FILES([i960/Makefile])
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subdirs="$subdirs i960"
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;;
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sparc-*leon*-elf* | sparc-*leon*-none*)
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AC_CONFIG_FILES([sparc_leon/Makefile])
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subdirs="$subdirs sparc_leon"
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;;
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sparclet-*-aout* | sparc-*-elf* | sparc64-*-elf* | sparc86x-*-* | sparclite-*-*)
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AC_CONFIG_FILES([sparc/Makefile])
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subdirs="$subdirs sparc"
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;;
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sh*-*-pe | mips*-*-pe | *arm*-wince-pe)
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config_wince=true
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;;
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mips*-*-*)
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AC_CONFIG_FILES([mips/Makefile])
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subdirs="$subdirs mips"
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target_makefile_frag=${srcdir}/config/mips.mt
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;;
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riscv*-*-*)
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config_riscv=true
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;;
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powerpc-*-*|powerpcle-*-*)
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AC_CONFIG_FILES([rs6000/Makefile])
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subdirs="$subdirs rs6000"
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host_makefile_frag=${srcdir}/config/ppc.mh
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;;
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mn10200-*-*)
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AC_CONFIG_FILES([mn10200/Makefile])
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subdirs="$subdirs mn10200"
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target_makefile_frag=${srcdir}/config/mn10200.mt
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;;
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mn10300-*-*)
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AC_CONFIG_FILES([mn10300/Makefile])
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subdirs="$subdirs mn10300"
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target_makefile_frag=${srcdir}/config/mn10300.mt
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;;
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bfin-*-*)
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config_bfin=true
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;;
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cr16-*-*)
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AC_CONFIG_FILES([cr16/Makefile])
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subdirs="$subdirs cr16"
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;;
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cris-*-* | crisv32-*-*)
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AC_CONFIG_FILES([cris/Makefile])
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subdirs="$subdirs cris"
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;;
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crx-*-*)
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AC_CONFIG_FILES([crx/Makefile])
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subdirs="$subdirs crx"
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;;
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d30v-*-*)
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config_d30v=true
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;;
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fr30-*-*)
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AC_CONFIG_FILES([fr30/Makefile])
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subdirs="$subdirs fr30"
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;;
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frv*-*-*)
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AC_CONFIG_FILES([frv/Makefile])
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subdirs="$subdirs frv"
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;;
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ft32*-*-*)
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AC_CONFIG_FILES([ft32/Makefile])
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subdirs="$subdirs ft32"
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;;
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lm32*-*-*)
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config_lm32=true
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;;
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mcore-*-*)
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AC_CONFIG_FILES([mcore/Makefile])
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subdirs="$subdirs mcore"
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;;
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mep-*-*)
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AC_CONFIG_FILES([mep/Makefile])
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subdirs="$subdirs mep"
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;;
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moxie-*-*)
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AC_CONFIG_FILES([moxie/Makefile])
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subdirs="$subdirs moxie"
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;;
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microblaze*-*-*)
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AC_CONFIG_FILES([microblaze/Makefile])
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subdirs="$subdirs microblaze"
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;;
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mt-*-*)
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AC_CONFIG_FILES([mt/Makefile])
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subdirs="$subdirs mt"
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;;
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v850*-*-*)
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AC_CONFIG_FILES([v850/Makefile])
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subdirs="$subdirs v850"
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;;
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visium-*-*)
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AC_CONFIG_FILES([visium/Makefile])
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subdirs="$subdirs visium"
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config_testsuite=false
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;;
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xc16x-*-*)
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AC_CONFIG_FILES([xc16x/Makefile])
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subdirs="$subdirs xc16x"
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target_makefile_frag=${srcdir}/config/xc16x.mt
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;;
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xstormy16-*-*)
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AC_CONFIG_FILES([xstormy16/Makefile])
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subdirs="$subdirs xstormy16"
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;;
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xtensa-*-*)
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config_xtensa=true
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;;
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m32c-*-*)
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AC_CONFIG_FILES([m32c/Makefile])
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subdirs="$subdirs m32c"
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;;
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msp430-*-elf*)
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AC_CONFIG_FILES([msp430/Makefile])
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subdirs="$subdirs msp430"
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config_libnosys=false
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;;
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rl78*-*-elf)
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AC_CONFIG_FILES([rl78/Makefile])
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subdirs="$subdirs rl78"
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;;
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rx*-*-elf)
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AC_CONFIG_FILES([rx/Makefile])
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subdirs="$subdirs rx"
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;;
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arm*-*-elf | arm*-*-coff | arm*-*-*)
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config_arm=true
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host_makefile_frag=${srcdir}/config/arm.mh
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;;
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spu-*-elf)
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AC_CONFIG_FILES([spu/Makefile])
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subdirs="$subdirs spu"
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host_makefile_frag=${srcdir}/config/ppc.mh
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config_testsuite=false
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config_libnosys=false
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;;
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tic6x-*-*)
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AC_CONFIG_FILES([tic6x/Makefile])
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subdirs="$subdirs tic6x"
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config_testsuite=false
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;;
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iq2000-*-*)
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config_iq2000=true
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;;
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or1k-*-* | or1knd-*-* )
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AC_CONFIG_FILES([or1k/Makefile])
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subdirs="$subdirs or1k"
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;;
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pru-*-*)
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AC_CONFIG_FILES([pru/Makefile])
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subdirs="$subdirs pru"
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;;
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nios2-*-*)
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config_nios2=true
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;;
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esac
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AC_SUBST(subdirs)
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dnl These subdirs have converted to non-recursive make. Hopefully someday all
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dnl the ports above will too!
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m4_foreach_w([SUBDIR], [
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aarch64 arc arm bfin csky d30v iq2000 libnosys lm32 nios2 riscv wince xtensa
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], [dnl
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AM_CONDITIONAL([CONFIG_]m4_toupper(SUBDIR), [test x$config_]SUBDIR = xtrue)
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])
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dnl arm platforms have a special header file found in the main include directory
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AM_CONDITIONAL([NEED_TOP_INCLUDE_DIR], [[test x$config_arm] = xtrue])
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dnl For now, don't bother configuring testsuite
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dnl
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dnl if test "${config_testsuite}" = "true";
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dnl then AC_CONFIG_SUBDIRS([testsuite])
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dnl fi
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AC_PROG_CC
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AM_PROG_AS
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AM_PROG_AR
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LD=${LD-ld}
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AC_SUBST(LD)
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AC_PROG_RANLIB
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AC_DEFINE(HAVE_GNU_LD, 1, [Using GNU LD])
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AC_CACHE_CHECK([if target is ELF], libc_cv_is_elf, [dnl
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AC_PREPROC_IFELSE([AC_LANG_PROGRAM(
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[[#ifndef __ELF__
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# error "not ELF"
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#endif
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]])], [libc_cv_is_elf=yes], [libc_cv_is_elf=no])
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])
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if test "x${libc_cv_is_elf}" = "xyes"; then
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AC_DEFINE(HAVE_ELF, 1, [Using ELF format])
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fi
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AC_CACHE_CHECK([for .previous assembler directive],
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libc_cv_asm_previous_directive, [dnl
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libc_cv_asm_previous_directive=no
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cat > conftest.s <<EOF
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.section foo_section
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.previous
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EOF
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if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AC_FD_CC); then
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libc_cv_asm_previous_directive=yes
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fi
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rm -f conftest*])
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if test "x${libc_cv_asm_previous_directive}" = "xyes"; then
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AC_DEFINE(HAVE_ASM_PREVIOUS_DIRECTIVE, 1, [.previous directive allowed])
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fi
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AC_CACHE_CHECK([for .popsection assembler directive],
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libc_cv_asm_popsection_directive, [dnl
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libc_cv_asm_popsection_directive=no
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cat > conftest.s <<EOF
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.pushsection foo_section
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.popsection
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EOF
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if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AC_FD_CC); then
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libc_cv_asm_popsection_directive=yes
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fi
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rm -f conftest*])
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if test "x${libc_cv_asm_popsection_directive}" = "xyes"; then
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AC_DEFINE(HAVE_ASM_POPSECTION_DIRECTIVE, 1, [.pushsection/.popsection directives allowed])
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fi
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AC_CACHE_CHECK([for section attributes],
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libc_cv_section_attributes, [dnl
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libc_cv_section_attributes=no
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cat > conftest.c <<EOF
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int secttest __attribute__ ((section (".gnu.warning.secttest"))) = 10;
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int main() {}
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EOF
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if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.c 1>&AC_FD_CC); then
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libc_cv_section_attributes=yes
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fi
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rm -f conftest*])
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if test "x${libc_cv_section_attributes}" = "xyes"; then
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AC_DEFINE(HAVE_SECTION_ATTRIBUTES, 1, [support for section attributes])
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fi
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AC_CACHE_CHECK([for symbol prefix], libc_cv_symbol_prefix, [dnl
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cat > conftest.c <<\EOF
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foo () { }
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EOF
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dnl
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libc_cv_symbol_prefix=''
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if AC_TRY_COMMAND([${CC-cc} -S conftest.c -o - | fgrep "\$foo" > /dev/null]); then
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libc_cv_symbol_prefix='$'
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else
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if AC_TRY_COMMAND([${CC-cc} -S conftest.c -o - | fgrep "_foo" > /dev/null]); then
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libc_cv_symbol_prefix=_
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fi
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fi
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rm -f conftest* ])
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AC_DEFINE_UNQUOTED(__SYMBOL_PREFIX, "$libc_cv_symbol_prefix", [symbol prefix])
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m4_include([aarch64/acinclude.m4])
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m4_include([arm/acinclude.m4])
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m4_include([i386/acinclude.m4])
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m4_include([libnosys/acinclude.m4])
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m4_include([m68k/acinclude.m4])
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m4_include([mcore/acinclude.m4])
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m4_include([mips/acinclude.m4])
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m4_include([mn10300/acinclude.m4])
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m4_include([moxie/acinclude.m4])
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m4_include([xtensa/acinclude.m4])
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AC_CACHE_CHECK([for compiler search settings], libc_cv_compiler_isystem, [dnl
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for subdir in include include-fixed; do
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AS_IF([dir=`$CC -print-file-name=$subdir`], [dnl
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AS_IF([test -n "$dir"], [dnl
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libc_cv_compiler_isystem="$libc_cv_compiler_isystem -isystem $dir"
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])
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])
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done
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])
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CC="$CC -nostdinc $libc_cv_compiler_isystem"
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dnl We have to assign the same value to other variables because autoconf
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dnl doesn't provide a mechanism to substitute a replacement keyword with
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dnl arbitrary data or pathnames.
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dnl
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host_makefile_frag_path=$host_makefile_frag
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AC_SUBST(host_makefile_frag_path)
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AC_SUBST_FILE(host_makefile_frag)
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target_makefile_frag_path=$target_makefile_frag
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AC_SUBST(target_makefile_frag_path)
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AC_SUBST_FILE(target_makefile_frag)
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dnl AM_ENABLE_MULTILIB only processes the top-level Makefile, but we want the
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dnl multilib settings to propagate to all sub-Makefiles that we recurse into
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dnl too. This can go away if we ever get rid of sub-Makefiles and only use
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dnl Automake + makefile include fragments.
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AC_OUTPUT_COMMANDS([
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for subdir in $subdirs; do
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case " $CONFIG_FILES " in
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*" $subdir/Makefile "*)
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ac_file=$subdir/Makefile . ${multi_basedir}/config-ml.in
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;;
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esac
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done], [subdirs="$subdirs"])
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AM_ENABLE_MULTILIB(, ..)
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AC_CONFIG_FILES([Makefile])
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AC_OUTPUT
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