git://sourceware.org / newlib-cygwin.git / blame
| Commit | Line | Data |
|---|---|---|
| c2b0dec2 DB |
1 | dnl Process this file with autoconf to produce a configure script. |
| 2 | AC_PREREQ(2.5)dnl | |
| 3 | AC_INIT(crt0.S) | |
| 4 | ||
| 5 | if test "${enable_shared}" = "yes" ; then | |
| 6 | echo "Shared libraries not supported for cross compiling, ignored" | |
| 7 | fi | |
| 8 | ||
| 9 | if test "$srcdir" = "." ; then | |
| 10 | if test "${with_target_subdir}" != "." ; then | |
| 11 | libgloss_topdir="${srcdir}/${with_multisrctop}../../.." | |
| 12 | else | |
| 13 | libgloss_topdir="${srcdir}/${with_multisrctop}../.." | |
| 14 | fi | |
| 15 | else | |
| 16 | libgloss_topdir="${srcdir}/../.." | |
| 17 | fi | |
| 18 | AC_CONFIG_AUX_DIR($libgloss_topdir) | |
| 19 | ||
| 20 | AC_CANONICAL_SYSTEM | |
| 21 | AC_ARG_PROGRAM | |
| 22 | ||
| 23 | AC_PROG_INSTALL | |
| 24 | ||
| 25 | # FIXME: We temporarily define our own version of AC_PROG_CC. This is | |
| 26 | # copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS. We | |
| 27 | # are probably using a cross compiler, which will not be able to fully | |
| 28 | # link an executable. This should really be fixed in autoconf | |
| 29 | # itself. | |
| 30 | ||
| 31 | AC_DEFUN(LIB_AC_PROG_CC, | |
| 32 | [AC_BEFORE([$0], [AC_PROG_CPP])dnl | |
| 33 | AC_CHECK_PROG(CC, gcc, gcc) | |
| 34 | if test -z "$CC"; then | |
| 35 | AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc) | |
| 36 | test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH]) | |
| 37 | fi | |
| 38 | ||
| 39 | AC_PROG_CC_GNU | |
| 40 | ||
| 41 | if test $ac_cv_prog_gcc = yes; then | |
| 42 | GCC=yes | |
| 43 | dnl Check whether -g works, even if CFLAGS is set, in case the package | |
| 44 | dnl plays around with CFLAGS (such as to build both debugging and | |
| 45 | dnl normal versions of a library), tasteless as that idea is. | |
| 46 | ac_test_CFLAGS="${CFLAGS+set}" | |
| 47 | ac_save_CFLAGS="$CFLAGS" | |
| 48 | CFLAGS= | |
| 49 | AC_PROG_CC_G | |
| 50 | if test "$ac_test_CFLAGS" = set; then | |
| 51 | CFLAGS="$ac_save_CFLAGS" | |
| 52 | elif test $ac_cv_prog_cc_g = yes; then | |
| 53 | CFLAGS="-g -O2" | |
| 54 | else | |
| 55 | CFLAGS="-O2" | |
| 56 | fi | |
| 57 | else | |
| 58 | GCC= | |
| 59 | test "${CFLAGS+set}" = set || CFLAGS="-g" | |
| 60 | fi | |
| 61 | ]) | |
| 62 | ||
| 63 | LIB_AC_PROG_CC | |
| 64 | ||
| 65 | AS=${AS-as} | |
| 66 | AC_SUBST(AS) | |
| 67 | AR=${AR-ar} | |
| 68 | AC_SUBST(AR) | |
| 69 | LD=${LD-ld} | |
| 70 | AC_SUBST(LD) | |
| 71 | AC_PROG_RANLIB | |
| 72 | ||
| 73 | host_makefile_frag=${srcdir}/../config/default.mh | |
| 74 | ||
| 75 | dnl We have to assign the same value to other variables because autoconf | |
| 76 | dnl doesn't provide a mechanism to substitute a replacement keyword with | |
| 77 | dnl arbitrary data or pathnames. | |
| 78 | dnl | |
| 79 | host_makefile_frag_path=$host_makefile_frag | |
| 80 | AC_SUBST(host_makefile_frag_path) | |
| 81 | AC_SUBST_FILE(host_makefile_frag) | |
| 82 | ||
| 83 | AC_OUTPUT(Makefile, | |
| 84 | . ${libgloss_topdir}/config-ml.in, | |
| 85 | srcdir=${srcdir} | |
| 86 | target=${target} | |
| 87 | ac_configure_args="${ac_configure_args} --enable-multilib" | |
| 88 | CONFIG_SHELL=${CONFIG_SHELL-/bin/sh} | |
| 89 | libgloss_topdir=${libgloss_topdir} | |
| 90 | ) |