[444] | 1 | dnl This provides configure definitions used by all the newlib |
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| 2 | dnl configure.in files. |
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| 3 | |
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| 4 | AC_DEFUN([DEF_NEWLIB_MAJOR_VERSION],m4_define([NEWLIB_MAJOR_VERSION],[3])) |
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| 5 | AC_DEFUN([DEF_NEWLIB_MINOR_VERSION],m4_define([NEWLIB_MINOR_VERSION],[0])) |
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| 6 | AC_DEFUN([DEF_NEWLIB_PATCHLEVEL_VERSION],m4_define([NEWLIB_PATCHLEVEL_VERSION],[0])) |
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| 7 | AC_DEFUN([DEF_NEWLIB_VERSION],m4_define([NEWLIB_VERSION],[NEWLIB_MAJOR_VERSION.NEWLIB_MINOR_VERSION.NEWLIB_PATCHLEVEL_VERSION])) |
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| 8 | |
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| 9 | dnl Basic newlib configury. This calls basic introductory stuff, |
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| 10 | dnl including AM_INIT_AUTOMAKE and AC_CANONICAL_HOST. It also runs |
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| 11 | dnl configure.host. The only argument is the relative path to the top |
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| 12 | dnl newlib directory. |
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| 13 | |
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| 14 | AC_DEFUN([NEWLIB_CONFIGURE], |
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| 15 | [AC_REQUIRE([DEF_NEWLIB_VERSION]) |
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| 16 | dnl Default to --enable-multilib |
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| 17 | AC_ARG_ENABLE(multilib, |
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| 18 | [ --enable-multilib build many library versions (default)], |
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| 19 | [case "${enableval}" in |
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| 20 | yes) multilib=yes ;; |
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| 21 | no) multilib=no ;; |
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| 22 | *) AC_MSG_ERROR(bad value ${enableval} for multilib option) ;; |
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| 23 | esac], [multilib=yes])dnl |
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| 24 | |
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| 25 | dnl Support --enable-target-optspace |
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| 26 | AC_ARG_ENABLE(target-optspace, |
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| 27 | [ --enable-target-optspace optimize for space], |
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| 28 | [case "${enableval}" in |
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| 29 | yes) target_optspace=yes ;; |
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| 30 | no) target_optspace=no ;; |
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| 31 | *) AC_MSG_ERROR(bad value ${enableval} for target-optspace option) ;; |
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| 32 | esac], [target_optspace=])dnl |
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| 33 | |
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| 34 | dnl Support --enable-malloc-debugging - currently only supported for Cygwin |
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| 35 | AC_ARG_ENABLE(malloc-debugging, |
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| 36 | [ --enable-malloc-debugging indicate malloc debugging requested], |
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| 37 | [case "${enableval}" in |
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| 38 | yes) malloc_debugging=yes ;; |
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| 39 | no) malloc_debugging=no ;; |
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| 40 | *) AC_MSG_ERROR(bad value ${enableval} for malloc-debugging option) ;; |
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| 41 | esac], [malloc_debugging=])dnl |
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| 42 | |
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| 43 | dnl Support --enable-newlib-multithread |
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| 44 | AC_ARG_ENABLE(newlib-multithread, |
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| 45 | [ --enable-newlib-multithread enable support for multiple threads], |
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| 46 | [case "${enableval}" in |
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| 47 | yes) newlib_multithread=yes ;; |
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| 48 | no) newlib_multithread=no ;; |
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| 49 | *) AC_MSG_ERROR(bad value ${enableval} for newlib-multithread option) ;; |
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| 50 | esac], [newlib_multithread=yes])dnl |
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| 51 | |
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| 52 | dnl Support --enable-newlib-iconv |
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| 53 | AC_ARG_ENABLE(newlib-iconv, |
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| 54 | [ --enable-newlib-iconv enable iconv library support], |
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| 55 | [if test "${newlib_iconv+set}" != set; then |
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| 56 | case "${enableval}" in |
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| 57 | yes) newlib_iconv=yes ;; |
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| 58 | no) newlib_iconv=no ;; |
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| 59 | *) AC_MSG_ERROR(bad value ${enableval} for newlib-iconv option) ;; |
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| 60 | esac |
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| 61 | fi], [newlib_iconv=${newlib_iconv}])dnl |
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| 62 | |
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| 63 | dnl Support --enable-newlib-elix-level |
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| 64 | AC_ARG_ENABLE(newlib-elix-level, |
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| 65 | [ --enable-newlib-elix-level supply desired elix library level (1-4)], |
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| 66 | [case "${enableval}" in |
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| 67 | 0) newlib_elix_level=0 ;; |
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| 68 | 1) newlib_elix_level=1 ;; |
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| 69 | 2) newlib_elix_level=2 ;; |
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| 70 | 3) newlib_elix_level=3 ;; |
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| 71 | 4) newlib_elix_level=4 ;; |
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| 72 | *) AC_MSG_ERROR(bad value ${enableval} for newlib-elix-level option) ;; |
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| 73 | esac], [newlib_elix_level=0])dnl |
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| 74 | |
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| 75 | dnl Support --disable-newlib-io-float |
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| 76 | AC_ARG_ENABLE(newlib-io-float, |
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| 77 | [ --disable-newlib-io-float disable printf/scanf family float support], |
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| 78 | [case "${enableval}" in |
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| 79 | yes) newlib_io_float=yes ;; |
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| 80 | no) newlib_io_float=no ;; |
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| 81 | *) AC_MSG_ERROR(bad value ${enableval} for newlib-io-float option) ;; |
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| 82 | esac], [newlib_io_float=yes])dnl |
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| 83 | |
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| 84 | dnl Support --disable-newlib-supplied-syscalls |
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| 85 | AC_ARG_ENABLE(newlib-supplied-syscalls, |
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| 86 | [ --disable-newlib-supplied-syscalls disable newlib from supplying syscalls], |
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| 87 | [case "${enableval}" in |
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| 88 | yes) newlib_may_supply_syscalls=yes ;; |
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| 89 | no) newlib_may_supply_syscalls=no ;; |
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| 90 | *) AC_MSG_ERROR(bad value ${enableval} for newlib-supplied-syscalls option) ;; |
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| 91 | esac], [newlib_may_supply_syscalls=yes])dnl |
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| 92 | |
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| 93 | AM_CONDITIONAL(MAY_SUPPLY_SYSCALLS, test x[$]{newlib_may_supply_syscalls} = xyes) |
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| 94 | |
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| 95 | dnl We may get other options which we don't document: |
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| 96 | dnl --with-target-subdir, --with-multisrctop, --with-multisubdir |
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| 97 | |
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| 98 | test -z "[$]{with_target_subdir}" && with_target_subdir=. |
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| 99 | |
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| 100 | if test "[$]{srcdir}" = "."; then |
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| 101 | if test "[$]{with_target_subdir}" != "."; then |
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| 102 | newlib_basedir="[$]{srcdir}/[$]{with_multisrctop}../$1" |
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| 103 | else |
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| 104 | newlib_basedir="[$]{srcdir}/[$]{with_multisrctop}$1" |
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| 105 | fi |
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| 106 | else |
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| 107 | newlib_basedir="[$]{srcdir}/$1" |
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| 108 | fi |
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| 109 | AC_SUBST(newlib_basedir) |
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| 110 | |
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| 111 | AC_CANONICAL_HOST |
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| 112 | |
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| 113 | AM_INIT_AUTOMAKE([cygnus no-define 1.9.5]) |
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| 114 | |
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| 115 | # FIXME: We temporarily define our own version of AC_PROG_CC. This is |
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| 116 | # copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS. We |
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| 117 | # are probably using a cross compiler, which will not be able to fully |
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| 118 | # link an executable. This should really be fixed in autoconf |
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| 119 | # itself. |
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| 120 | |
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| 121 | AC_DEFUN([LIB_AC_PROG_CC_GNU], |
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| 122 | [AC_CACHE_CHECK(whether we are using GNU C, ac_cv_prog_gcc, |
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| 123 | [dnl The semicolon is to pacify NeXT's syntax-checking cpp. |
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| 124 | cat > conftest.c <<EOF |
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| 125 | #ifdef __GNUC__ |
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| 126 | yes; |
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| 127 | #endif |
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| 128 | EOF |
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| 129 | if AC_TRY_COMMAND(${CC-cc} -E conftest.c) | egrep yes >/dev/null 2>&1; then |
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| 130 | ac_cv_prog_gcc=yes |
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| 131 | else |
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| 132 | ac_cv_prog_gcc=no |
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| 133 | fi])]) |
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| 134 | |
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| 135 | AC_DEFUN([LIB_AM_PROG_AS], |
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| 136 | [# By default we simply use the C compiler to build assembly code. |
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| 137 | AC_REQUIRE([LIB_AC_PROG_CC]) |
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| 138 | test "${CCAS+set}" = set || CCAS=$CC |
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| 139 | test "${CCASFLAGS+set}" = set || CCASFLAGS=$CFLAGS |
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| 140 | AC_ARG_VAR([CCAS], [assembler compiler command (defaults to CC)]) |
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| 141 | AC_ARG_VAR([CCASFLAGS], [assembler compiler flags (defaults to CFLAGS)]) |
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| 142 | ]) |
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| 143 | |
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| 144 | AC_DEFUN([LIB_AC_PROG_CC], |
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| 145 | [AC_BEFORE([$0], [AC_PROG_CPP])dnl |
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| 146 | AC_CHECK_PROG(CC, gcc, gcc) |
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| 147 | _AM_DEPENDENCIES(CC) |
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| 148 | if test -z "$CC"; then |
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| 149 | AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc) |
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| 150 | test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH]) |
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| 151 | fi |
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| 152 | |
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| 153 | LIB_AC_PROG_CC_GNU |
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| 154 | |
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| 155 | if test $ac_cv_prog_gcc = yes; then |
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| 156 | GCC=yes |
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| 157 | dnl Check whether -g works, even if CFLAGS is set, in case the package |
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| 158 | dnl plays around with CFLAGS (such as to build both debugging and |
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| 159 | dnl normal versions of a library), tasteless as that idea is. |
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| 160 | ac_test_CFLAGS="${CFLAGS+set}" |
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| 161 | ac_save_CFLAGS="$CFLAGS" |
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| 162 | _AC_PROG_CC_G |
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| 163 | if test "$ac_test_CFLAGS" = set; then |
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| 164 | CFLAGS="$ac_save_CFLAGS" |
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| 165 | elif test $ac_cv_prog_cc_g = yes; then |
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| 166 | CFLAGS="-g -O2" |
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| 167 | else |
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| 168 | CFLAGS="-O2" |
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| 169 | fi |
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| 170 | else |
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| 171 | GCC= |
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| 172 | test "${CFLAGS+set}" = set || CFLAGS="-g" |
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| 173 | fi |
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| 174 | ]) |
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| 175 | |
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| 176 | LIB_AC_PROG_CC |
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| 177 | |
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| 178 | AC_CHECK_TOOL(AS, as) |
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| 179 | AC_CHECK_TOOL(AR, ar) |
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| 180 | AC_CHECK_TOOL(RANLIB, ranlib, :) |
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| 181 | AC_CHECK_TOOL(READELF, readelf, :) |
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| 182 | |
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| 183 | AC_PROG_INSTALL |
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| 184 | |
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| 185 | # Hack to ensure that INSTALL won't be set to "../" with autoconf 2.13. */ |
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| 186 | ac_given_INSTALL=$INSTALL |
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| 187 | |
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| 188 | AM_MAINTAINER_MODE |
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| 189 | LIB_AM_PROG_AS |
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| 190 | |
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| 191 | # We need AC_EXEEXT to keep automake happy in cygnus mode. However, |
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| 192 | # at least currently, we never actually build a program, so we never |
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| 193 | # need to use $(EXEEXT). Moreover, the test for EXEEXT normally |
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| 194 | # fails, because we are probably configuring with a cross compiler |
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| 195 | # which can't create executables. So we include AC_EXEEXT to keep |
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| 196 | # automake happy, but we don't execute it, since we don't care about |
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| 197 | # the result. |
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| 198 | if false; then |
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| 199 | AC_EXEEXT |
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| 200 | dummy_var=1 |
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| 201 | fi |
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| 202 | |
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| 203 | . [$]{newlib_basedir}/configure.host |
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| 204 | |
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| 205 | newlib_cflags="[$]{newlib_cflags} -fno-builtin" |
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| 206 | |
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| 207 | NEWLIB_CFLAGS=${newlib_cflags} |
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| 208 | AC_SUBST(NEWLIB_CFLAGS) |
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| 209 | |
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| 210 | NO_INCLUDE_LIST=${noinclude} |
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| 211 | AC_SUBST(NO_INCLUDE_LIST) |
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| 212 | |
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| 213 | LDFLAGS=${ldflags} |
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| 214 | AC_SUBST(LDFLAGS) |
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| 215 | |
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| 216 | AM_CONDITIONAL(ELIX_LEVEL_0, test x[$]{newlib_elix_level} = x0) |
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| 217 | AM_CONDITIONAL(ELIX_LEVEL_1, test x[$]{newlib_elix_level} = x1) |
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| 218 | AM_CONDITIONAL(ELIX_LEVEL_2, test x[$]{newlib_elix_level} = x2) |
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| 219 | AM_CONDITIONAL(ELIX_LEVEL_3, test x[$]{newlib_elix_level} = x3) |
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| 220 | AM_CONDITIONAL(ELIX_LEVEL_4, test x[$]{newlib_elix_level} = x4) |
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| 221 | |
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| 222 | AM_CONDITIONAL(USE_LIBTOOL, test x[$]{use_libtool} = xyes) |
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| 223 | |
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| 224 | # Hard-code OBJEXT. Normally it is set by AC_OBJEXT, but we |
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| 225 | # use oext, which is set in configure.host based on the target platform. |
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| 226 | OBJEXT=${oext} |
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| 227 | |
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| 228 | AC_SUBST(OBJEXT) |
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| 229 | AC_SUBST(oext) |
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| 230 | AC_SUBST(aext) |
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| 231 | AC_SUBST(lpfx) |
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| 232 | |
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| 233 | AC_SUBST(libm_machine_dir) |
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| 234 | AC_SUBST(machine_dir) |
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| 235 | AC_SUBST(sys_dir) |
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| 236 | ]) |
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