diff options
Diffstat (limited to 'libiberty/configure.ac')
| -rw-r--r-- | libiberty/configure.ac | 530 |
1 files changed, 530 insertions, 0 deletions
diff --git a/libiberty/configure.ac b/libiberty/configure.ac new file mode 100644 index 0000000000..e8907e708c --- /dev/null +++ b/libiberty/configure.ac @@ -0,0 +1,530 @@ +dnl Process this file with autoconf to produce a configure script + +AC_PREREQ(2.57) +AC_INIT(xmalloc.c) + +# This works around the fact that libtool configuration may change LD +# for this particular configuration, but some shells, instead of +# keeping the changes in LD private, export them just because LD is +# exported. We don't use libtool yet, but some day we might, so... +ORIGINAL_LD_FOR_MULTILIBS=$LD + +dnl We use these options to decide which functions to include. +AC_ARG_WITH(target-subdir, +[ --with-target-subdir=SUBDIR Configuring in a subdirectory for target]) +AC_ARG_WITH(build-subdir, +[ --with-build-subdir=SUBDIR Configuring in a subdirectory for build]) +AC_ARG_WITH(cross-host, +[ --with-cross-host=HOST Configuring with a cross compiler]) +AC_ARG_WITH(newlib, +[ --with-newlib Configuring with newlib]) + +if test "${srcdir}" = "."; then + if test -n "${with_build_subdir}"; then + libiberty_topdir="${srcdir}/../.." + with_target_subdir= + elif test -z "${with_target_subdir}"; then + libiberty_topdir="${srcdir}/.." + else + if test "${with_target_subdir}" != "."; then + libiberty_topdir="${srcdir}/${with_multisrctop}../.." + else + libiberty_topdir="${srcdir}/${with_multisrctop}.." + fi + fi +else + libiberty_topdir="${srcdir}/.." +fi +AC_SUBST(libiberty_topdir) +AC_CONFIG_AUX_DIR($libiberty_topdir) + +dnl Very limited version of automake's enable-maintainer-mode + +AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles]) + dnl maintainer-mode is disabled by default + AC_ARG_ENABLE(maintainer-mode, +[ --enable-maintainer-mode + enable make rules and dependencies not useful + (and sometimes confusing) to the casual installer], + maintainer_mode=$enableval, + maintainer_mode=no) + +AC_MSG_RESULT($maintainer_mode) + +if test "$maintainer_mode" = "yes"; then + MAINT='' + NOTMAINT='#' +else + MAINT='#' + NOTMAINT='' +fi +AC_SUBST(MAINT)dnl +AC_SUBST(NOTMAINT)dnl + +# Do we have a single-tree copy of texinfo? Even if we do, we can't +# rely on it - libiberty is built before texinfo. +AC_CHECK_PROG(MAKEINFO, makeinfo, makeinfo, ) +if test "x$MAKEINFO" = "x"; then + MAKEINFO="@echo makeinfo missing; true" + BUILD_INFO= +else + BUILD_INFO=info + case "$MAKEINFO" in + */missing\ makeinfo*) + BUILD_INFO= + AC_MSG_WARN([ +*** Makeinfo is missing. Info documentation will not be built.]) + ;; + *) + case x"`$MAKEINFO --version | grep 'GNU texinfo'`" in + x*\ [[1-3]].* ) + MAKEINFO="@echo $MAKEINFO is too old, 4.0 or newer required; true" + BUILD_INFO= + AC_MSG_WARN([ +*** Makeinfo is too old. Info documentation will not be built.]) + ;; + esac + ;; + esac +fi +AC_SUBST(MAKEINFO) +AC_SUBST(BUILD_INFO) + +AC_CHECK_PROG(PERL, perl, perl, ) +if test x"$PERL" = x""; then + HAVE_PERL='#' +else + HAVE_PERL='' +fi +AC_SUBST(HAVE_PERL) + +AC_CANONICAL_HOST + +dnl When we start using automake: +dnl AM_INIT_AUTOMAKE(libiberty, 1.0) + +dnl These must be called before AM_PROG_LIBTOOL, because it may want +dnl to call AC_CHECK_PROG. +AC_CHECK_TOOL(AR, ar) +AC_CHECK_TOOL(RANLIB, ranlib, :) + +GCC_NO_EXECUTABLES +AC_PROG_CC +AC_PROG_CPP_WERROR + +if test x$GCC = xyes; then + ac_libiberty_warn_cflags='-W -Wall -Wtraditional -pedantic' +fi +AC_SUBST(ac_libiberty_warn_cflags) + +AC_PROG_CC_C_O +# autoconf is lame and doesn't give us any substitution variable for this. +if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then + NO_MINUS_C_MINUS_O=yes +else + OUTPUT_OPTION='-o $@' +fi +AC_SUBST(NO_MINUS_C_MINUS_O) +AC_SUBST(OUTPUT_OPTION) + +AC_C_CONST +AC_C_INLINE +AC_C_BIGENDIAN_CROSS + +dnl When we start using libtool: +dnl Default to a non shared library. This may be overridden by the +dnl configure option --enable-shared. +dnl AM_DISABLE_SHARED + +dnl When we start using libtool: +dnl AM_PROG_LIBTOOL + +dnl When we start using automake: +dnl AM_CONFIG_HEADER(config.h:config.in) +AC_CONFIG_HEADER(config.h:config.in) + +dnl When we start using automake: +dnl AM_MAINTAINER_MODE +dnl AC_EXEEXT + +dnl When we start using automake: +dnl AM_PROG_INSTALL +AC_PROG_INSTALL + +. ${srcdir}/config.table +host_makefile_frag=${frag} +AC_SUBST_FILE(host_makefile_frag) + +# It's OK to check for header files. Although the compiler may not be +# able to link anything, it had better be able to at least compile +# something. +AC_CHECK_HEADERS(sys/file.h sys/param.h limits.h stdlib.h malloc.h string.h unistd.h strings.h sys/time.h time.h sys/resource.h sys/stat.h sys/mman.h fcntl.h alloca.h sys/pstat.h sys/sysmp.h sys/sysinfo.h machine/hal_sysinfo.h sys/table.h sys/sysctl.h sys/systemcfg.h) +AC_HEADER_SYS_WAIT +AC_HEADER_TIME + +libiberty_AC_DECLARE_ERRNO + +AC_CHECK_TYPE(uintptr_t, unsigned long) +# Given the above check, we always have uintptr_t or a fallback +# definition. So define HAVE_UINTPTR_T in case any imported code +# relies on it. +AC_DEFINE(HAVE_UINTPTR_T, 1, [Define if you have the \`uintptr_t' type.]) + +AC_TYPE_PID_T + +# This is the list of functions which libiberty will provide if they +# are not available on the host. + +funcs="asprintf" +funcs="$funcs atexit" +funcs="$funcs basename" +funcs="$funcs bcmp" +funcs="$funcs bcopy" +funcs="$funcs bsearch" +funcs="$funcs bzero" +funcs="$funcs calloc" +funcs="$funcs clock" +funcs="$funcs ffs" +funcs="$funcs getcwd" +funcs="$funcs getpagesize" +funcs="$funcs index" +funcs="$funcs insque" +funcs="$funcs memchr" +funcs="$funcs memcmp" +funcs="$funcs memcpy" +funcs="$funcs memmove" +funcs="$funcs mempcpy" +funcs="$funcs memset" +funcs="$funcs mkstemps" +funcs="$funcs putenv" +funcs="$funcs random" +funcs="$funcs rename" +funcs="$funcs rindex" +funcs="$funcs setenv" +funcs="$funcs snprintf" +funcs="$funcs sigsetmask" +funcs="$funcs stpcpy" +funcs="$funcs stpncpy" +funcs="$funcs strcasecmp" +funcs="$funcs strchr" +funcs="$funcs strdup" +funcs="$funcs strncasecmp" +funcs="$funcs strrchr" +funcs="$funcs strstr" +funcs="$funcs strtod" +funcs="$funcs strtol" +funcs="$funcs strtoul" +funcs="$funcs tmpnam" +funcs="$funcs vasprintf" +funcs="$funcs vfprintf" +funcs="$funcs vprintf" +funcs="$funcs vsnprintf" +funcs="$funcs vsprintf" +funcs="$funcs waitpid" + +# Also in the old function.def file: alloca, vfork, getopt. + +vars="sys_errlist sys_nerr sys_siglist" + +checkfuncs="getrusage on_exit psignal strerror strsignal sysconf times sbrk gettimeofday" +checkfuncs="$checkfuncs realpath canonicalize_file_name pstat_getstatic pstat_getdynamic sysmp" +checkfuncs="$checkfuncs getsysinfo table sysctl" + +# These are neither executed nor required, but they help keep +# autoheader happy without adding a bunch of text to acconfig.h. +if test "x" = "y"; then + AC_CHECK_FUNCS(asprintf atexit basename bcmp bcopy bsearch bzero calloc clock \ + getcwd getpagesize index insque mkstemps memchr memcmp memcpy \ + memmove mempcpy memset putenv random rename rindex sigsetmask \ + strcasecmp setenv stpcpy stpncpy strchr strdup strncasecmp strrchr strstr \ + strtod strtol strtoul tmpnam vasprintf vfprintf vprintf \ + vsprintf waitpid getrusage on_exit psignal strerror strsignal \ + sysconf times sbrk gettimeofday ffs snprintf vsnprintf \ + pstat_getstatic pstat_getdynamic sysmp getsysinfo table sysctl \ + realpath canonicalize_file_name) + AC_DEFINE(HAVE_SYS_ERRLIST, 1, [Define if you have the sys_errlist variable.]) + AC_DEFINE(HAVE_SYS_NERR, 1, [Define if you have the sys_nerr variable.]) + AC_DEFINE(HAVE_SYS_SIGLIST, 1, [Define if you have the sys_siglist variable.]) +fi + +# For each of these functions, if the host does not provide the +# function we want to put FN.o in LIBOBJS, and if the host does +# provide the function, we want to define HAVE_FN in config.h. + +setobjs= +CHECK= +target_header_dir= +if test -n "${with_target_subdir}"; then + + # We are being configured as a target library. AC_REPLACE_FUNCS + # may not work correctly, because the compiler may not be able to + # link executables. Note that we may still be being configured + # native. + + # If we are being configured for newlib, we know which functions + # newlib provide and which ones we will be expected to provide. + + if test "x${with_newlib}" = "xyes"; then + AC_LIBOBJ([asprintf]) + AC_LIBOBJ([basename]) + AC_LIBOBJ([insque]) + AC_LIBOBJ([random]) + AC_LIBOBJ([strdup]) + AC_LIBOBJ([vasprintf]) + + for f in $funcs; do + case "$f" in + asprintf | basename | insque | random | strdup | vasprintf) + ;; + *) + n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` + AC_DEFINE_UNQUOTED($n) + ;; + esac + done + + # newlib doesnt provide any of the variables in $vars, so we + # dont have to check them here. + + # Of the functions in $checkfuncs, newlib only has strerror. + AC_DEFINE_NOAUTOHEADER(HAVE_STRERROR) + + setobjs=yes + + fi + + # We may wish to install the target headers somewhere. + AC_ARG_ENABLE(install-libiberty, + [ --enable-install-libiberty Install headers for end users], + enable_install_libiberty=$enableval, + enable_install_libiberty=no)dnl + + # Option parsed, now set things appropriately. + case x"$enable_install_libiberty" in + xyes|x) + target_header_dir=libiberty + ;; + xno) + target_header_dir= + ;; + *) + # This could be sanity-checked in various ways... + target_header_dir="${enable_install_libiberty}" + ;; + esac + + +else + + # Not a target library, so we set things up to run the test suite. + CHECK=check-cplus-dem + +fi + +AC_SUBST(CHECK) +AC_SUBST(target_header_dir) + +case "${host}" in + *-*-cygwin* | *-*-mingw*) + AC_DEFINE_NOAUTOHEADER(HAVE_SYS_ERRLIST) + AC_DEFINE_NOAUTOHEADER(HAVE_SYS_NERR) + ;; +esac + +if test -z "${setobjs}"; then + case "${host}" in + + *-*-vxworks*) + # Handle VxWorks configuration specially, since on VxWorks the + # libraries are actually on the target board, not in the file + # system. + AC_LIBOBJ([basename]) + AC_LIBOBJ([getpagesize]) + AC_LIBOBJ([insque]) + AC_LIBOBJ([random]) + AC_LIBOBJ([strcasecmp]) + AC_LIBOBJ([strncasecmp]) + AC_LIBOBJ([strdup]) + AC_LIBOBJ([vfork]) + AC_LIBOBJ([waitpid]) + AC_LIBOBJ([vasprintf]) + for f in $funcs; do + case "$f" in + basename | getpagesize | insque | random | strcasecmp) + ;; + strncasecmp | strdup | vfork | waitpid | vasprintf) + ;; + *) + n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` + AC_DEFINE_UNQUOTED($n) + ;; + esac + done + + # VxWorks doesn't provide any of the variables in $vars, so we + # don't have to check them here. + + # Of the functions in $checkfuncs, VxWorks only has strerror. + AC_DEFINE_NOAUTOHEADER(HAVE_STRERROR) + + setobjs=yes + ;; + + esac +fi + +if test -z "${setobjs}"; then + + case "${host}" in + + *-*-cygwin*) + # The Cygwin library actually uses a couple of files from + # libiberty when it is built. If we are building a native + # Cygwin, and we run the tests, we will appear to have these + # files. However, when we go on to build winsup, we will wind up + # with a library which does not have the files, since they should + # have come from libiberty. + + # We handle this by removing the functions the winsup library + # provides from our shell variables, so that they appear to be + # missing. + + # DJ - only if we're *building* cygwin, not just building *with* cygwin + + if test -n "${with_target_subdir}" + then + funcs="`echo $funcs | sed -e 's/random//'`" + AC_LIBOBJ([random]) + vars="`echo $vars | sed -e 's/sys_siglist//'`" + checkfuncs="`echo $checkfuncs | sed -e 's/strsignal//' -e 's/psignal//'`" + fi + ;; + + *-*-mingw32*) + # Under mingw32, sys_nerr and sys_errlist exist, but they are + # macros, so the test below won't find them. + libiberty_cv_var_sys_nerr=yes + libiberty_cv_var_sys_errlist=yes + ;; + + *-*-uwin*) + # Under some versions of uwin, vfork is notoriously buggy and the test + # can hang configure; on other versions, vfork exists just as a stub. + # FIXME: This should be removed once vfork in uwin's runtime is fixed. + ac_cv_func_vfork_works=no + # Under uwin 2.0+, sys_nerr and sys_errlist exist, but they are + # macros (actually, these are imported from a DLL, but the end effect + # is the same), so the test below won't find them. + libiberty_cv_var_sys_nerr=yes + libiberty_cv_var_sys_errlist=yes + ;; + + *-*-*vms*) + # Under VMS, vfork works very different than on Unix. The standard test + # won't work, and it isn't easily adaptable. It makes more sense to + # just force it. + ac_cv_func_vfork_works=yes + ;; + + esac + + # We haven't set the list of objects yet. Use the standard autoconf + # tests. This will only work if the compiler works. + AC_ISC_POSIX + AC_REPLACE_FUNCS($funcs) + libiberty_AC_FUNC_C_ALLOCA + AC_FUNC_VFORK + if test $ac_cv_func_vfork_works = no; then + AC_LIBOBJ([vfork]) + fi + # We only need _doprnt if we might use it to implement v*printf. + if test $ac_cv_func_vprintf != yes \ + || test $ac_cv_func_vfprintf != yes \ + || test $ac_cv_func_vsprintf != yes; then + AC_REPLACE_FUNCS(_doprnt) + else + AC_CHECK_FUNCS(_doprnt) + fi + + for v in $vars; do + AC_MSG_CHECKING([for $v]) + AC_CACHE_VAL(libiberty_cv_var_$v, + [AC_TRY_LINK([int *p;], [extern int $v []; p = $v;], + [eval "libiberty_cv_var_$v=yes"], + [eval "libiberty_cv_var_$v=no"])]) + if eval "test \"`echo '$libiberty_cv_var_'$v`\" = yes"; then + AC_MSG_RESULT(yes) + n=HAVE_`echo $v | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` + AC_DEFINE_UNQUOTED($n) + else + AC_MSG_RESULT(no) + fi + done + + # special check for _system_configuration because AIX <4.3.2 do not + # contain the `physmem' member. + AC_MSG_CHECKING([for external symbol _system_configuration]) + AC_TRY_COMPILE([#include <sys/systemcfg.h>], + [double x = _system_configuration.physmem;], + [AC_MSG_RESULT([yes]) + AC_DEFINE(HAVE__SYSTEM_CONFIGURATION, 1, + [Define if you have the _system_configuration variable.])], + [AC_MSG_RESULT([no])]) + + AC_CHECK_FUNCS($checkfuncs) + libiberty_NEED_DECLARATION(canonicalize_file_name) +fi + +# Figure out which version of pexecute to use. +case "${host}" in + *-*-mingw* | *-*-winnt*) pexecute=./pex-win32.o ;; + *-*-msdosdjgpp*) pexecute=./pex-djgpp.o ;; + *-*-msdos*) pexecute=./pex-msdos.o ;; + *-*-os2-emx*) pexecute=./pex-os2.o ;; + *) pexecute=./pex-unix.o ;; +esac +AC_SUBST(pexecute) + +libiberty_AC_FUNC_STRNCMP + +# Install a library built with a cross compiler in $(tooldir) rather +# than $(libdir). +if test -z "${with_cross_host}"; then + INSTALL_DEST=libdir +else + INSTALL_DEST=tooldir +fi +AC_SUBST(INSTALL_DEST) + +m4_pattern_allow(LIBOBJS) +L="" +for l in x $LIBOBJS; do + case $l in + x) ;; + *) L="$L ./$l" ;; + esac +done +LIBOBJS="$L" + +# We need multilib support, but only if configuring for the target. +AC_OUTPUT(Makefile testsuite/Makefile, +[test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h +if test -n "$CONFIG_FILES"; then + if test -n "${with_build_subdir}" || test -n "${with_target_subdir}"; then + # FIXME: We shouldn't need to set ac_file + ac_file=Makefile + LD="${ORIGINAL_LD_FOR_MULTILIBS}" + . ${libiberty_topdir}/config-ml.in + fi +fi], +srcdir=${srcdir} +host=${host} +target=${target} +with_target_subdir=${with_target_subdir} +with_build_subdir=${with_build_subdir} +with_multisubdir=${with_multisubdir} +ac_configure_args="--enable-multilib ${ac_configure_args}" +CONFIG_SHELL=${CONFIG_SHELL-/bin/sh} +ORIGINAL_LD_FOR_MULTILIBS="${ORIGINAL_LD_FOR_MULTILIBS}" +libiberty_topdir=${libiberty_topdir} +) |