| 1 | dnl Process this file with autoconf to produce a configure script. |
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| 2 | AC_PREREQ(2.59) |
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| 3 | AC_INIT(redboot-crt0.S) |
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| 4 | |
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| 5 | dnl Support --disable-newlib-supplied-syscalls |
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| 6 | AC_ARG_ENABLE(newlib-supplied-syscalls, |
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| 7 | [ --disable-newlib-supplied-syscalls disable newlib from supplying syscalls], |
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| 8 | [case "${enableval}" in |
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| 9 | yes) newlib_may_supply_syscalls=yes ;; |
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| 10 | no) newlib_may_supply_syscalls=no ;; |
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| 11 | *) AC_MSG_ERROR(bad value ${enableval} for newlib-supplied-syscalls option) ;; |
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| 12 | esac], [newlib_may_supply_syscalls=yes])dnl |
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| 13 | |
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| 14 | if test "x$newlib_may_supply_syscalls" = "xyes"; then |
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| 15 | BUILD_CRT0_TRUE='#' |
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| 16 | BUILD_CRT0_FALSE= |
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| 17 | else |
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| 18 | BUILD_CRT0_TRUE= |
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| 19 | BUILD_CRT0_FALSE='#' |
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| 20 | fi |
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| 21 | |
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| 22 | AC_SUBST(BUILD_CRT0_TRUE) |
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| 23 | AC_SUBST(BUILD_CRT0_FALSE) |
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| 24 | |
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| 25 | if test "$srcdir" = "." ; then |
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| 26 | if test "${with_target_subdir}" != "." ; then |
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| 27 | libgloss_topdir="${srcdir}/${with_multisrctop}../../.." |
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| 28 | else |
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| 29 | libgloss_topdir="${srcdir}/${with_multisrctop}../.." |
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| 30 | fi |
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| 31 | else |
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| 32 | libgloss_topdir="${srcdir}/../.." |
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| 33 | fi |
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| 34 | AC_CONFIG_AUX_DIR($libgloss_topdir) |
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| 35 | |
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| 36 | AC_CANONICAL_SYSTEM |
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| 37 | AC_ARG_PROGRAM |
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| 38 | |
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| 39 | AC_PROG_INSTALL |
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| 40 | |
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| 41 | LIB_AC_PROG_CC |
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| 42 | AS=${AS-as} |
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| 43 | AC_SUBST(AS) |
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| 44 | AR=${AR-ar} |
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| 45 | AC_SUBST(AR) |
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| 46 | LD=${LD-ld} |
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| 47 | AC_SUBST(LD) |
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| 48 | AC_PROG_RANLIB |
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| 49 | LIB_AM_PROG_AS |
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| 50 | |
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| 51 | case "${target}" in |
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| 52 | *-*-elf | *-*-eabi* | *-*-tirtos*) |
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| 53 | objtype=elf- |
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| 54 | ;; |
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| 55 | *-*-coff) |
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| 56 | objtype=coff- |
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| 57 | ;; |
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| 58 | esac |
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| 59 | |
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| 60 | AC_SUBST(objtype) |
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| 61 | |
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| 62 | host_makefile_frag=`cd $srcdir/../config;pwd`/default.mh |
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| 63 | |
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| 64 | dnl We have to assign the same value to other variables because autoconf |
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| 65 | dnl doesn't provide a mechanism to substitute a replacement keyword with |
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| 66 | dnl arbitrary data or pathnames. |
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| 67 | dnl |
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| 68 | host_makefile_frag_path=$host_makefile_frag |
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| 69 | AC_SUBST(host_makefile_frag_path) |
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| 70 | AC_SUBST_FILE(host_makefile_frag) |
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| 71 | |
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| 72 | # Configure cpu init plug-ins |
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| 73 | if test -d "${srcdir}/cpu-init"; then |
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| 74 | subdirs="${subdirs} cpu-init" |
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| 75 | AC_CONFIG_FILES(cpu-init/Makefile, |
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| 76 | . ${libgloss_topdir}/config-ml.in, |
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| 77 | srcdir=${srcdir} |
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| 78 | target=${target} |
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| 79 | with_multisubdir=${with_multisubdir} |
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| 80 | ac_configure_args="${ac_configure_args} --enable-multilib" |
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| 81 | CONFIG_SHELL=${CONFIG_SHELL-/bin/sh} |
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| 82 | libgloss_topdir=${libgloss_topdir} |
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| 83 | ) |
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| 84 | AC_SUBST(subdirs) |
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| 85 | fi |
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| 86 | |
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| 87 | AC_CONFIG_FILES(Makefile, |
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| 88 | . ${libgloss_topdir}/config-ml.in, |
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| 89 | srcdir=${srcdir} |
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| 90 | target=${target} |
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| 91 | with_multisubdir=${with_multisubdir} |
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| 92 | ac_configure_args="${ac_configure_args} --enable-multilib" |
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| 93 | CONFIG_SHELL=${CONFIG_SHELL-/bin/sh} |
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| 94 | libgloss_topdir=${libgloss_topdir} |
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| 95 | ) |
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| 96 | AC_OUTPUT |
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| 97 | |
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