diff options
Diffstat (limited to 'gcc-4.4.0/gcc/acinclude.m4')
| -rw-r--r-- | gcc-4.4.0/gcc/acinclude.m4 | 484 |
1 files changed, 0 insertions, 484 deletions
diff --git a/gcc-4.4.0/gcc/acinclude.m4 b/gcc-4.4.0/gcc/acinclude.m4 deleted file mode 100644 index 9f865ee28..000000000 --- a/gcc-4.4.0/gcc/acinclude.m4 +++ /dev/null @@ -1,484 +0,0 @@ -dnl See whether we need a declaration for a function. -dnl The result is highly dependent on the INCLUDES passed in, so make sure -dnl to use a different cache variable name in this macro if it is invoked -dnl in a different context somewhere else. -dnl gcc_AC_CHECK_DECL(SYMBOL, -dnl [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND [, INCLUDES]]]) -AC_DEFUN([gcc_AC_CHECK_DECL], -[AC_MSG_CHECKING([whether $1 is declared]) -AC_CACHE_VAL(gcc_cv_have_decl_$1, -[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([$4], -[#ifndef $1 -char *(*pfn) = (char *(*)) $1 ; -#endif])], eval "gcc_cv_have_decl_$1=yes", eval "gcc_cv_have_decl_$1=no")]) -if eval "test \"`echo '$gcc_cv_have_decl_'$1`\" = yes"; then - AC_MSG_RESULT(yes) ; ifelse([$2], , :, [$2]) -else - AC_MSG_RESULT(no) ; ifelse([$3], , :, [$3]) -fi -])dnl - -dnl Check multiple functions to see whether each needs a declaration. -dnl Arrange to define HAVE_DECL_<FUNCTION> to 0 or 1 as appropriate. -dnl gcc_AC_CHECK_DECLS(SYMBOLS, -dnl [ACTION-IF-NEEDED [, ACTION-IF-NOT-NEEDED [, INCLUDES]]]) -AC_DEFUN([gcc_AC_CHECK_DECLS], -[AC_FOREACH([gcc_AC_Func], [$1], - [AH_TEMPLATE(AS_TR_CPP(HAVE_DECL_[]gcc_AC_Func), - [Define to 1 if we found a declaration for ']gcc_AC_Func[', otherwise - define to 0.])])dnl -for ac_func in $1 -do - ac_tr_decl=AS_TR_CPP([HAVE_DECL_$ac_func]) -gcc_AC_CHECK_DECL($ac_func, - [AC_DEFINE_UNQUOTED($ac_tr_decl, 1) $2], - [AC_DEFINE_UNQUOTED($ac_tr_decl, 0) $3], -dnl It is possible that the include files passed in here are local headers -dnl which supply a backup declaration for the relevant prototype based on -dnl the definition of (or lack of) the HAVE_DECL_ macro. If so, this test -dnl will always return success. E.g. see libiberty.h's handling of -dnl `basename'. To avoid this, we define the relevant HAVE_DECL_ macro to -dnl 1 so that any local headers used do not provide their own prototype -dnl during this test. -#undef $ac_tr_decl -#define $ac_tr_decl 1 - $4 -) -done -]) - -dnl 'make compare' can be significantly faster, if cmp itself can -dnl skip bytes instead of using tail. The test being performed is -dnl "if cmp --ignore-initial=2 t1 t2 && ! cmp --ignore-initial=1 t1 t2" -dnl but we need to sink errors and handle broken shells. We also test -dnl for the parameter format "cmp file1 file2 skip1 skip2" which is -dnl accepted by cmp on some systems. -AC_DEFUN([gcc_AC_PROG_CMP_IGNORE_INITIAL], -[AC_CACHE_CHECK([for cmp's capabilities], gcc_cv_prog_cmp_skip, -[ echo abfoo >t1 - echo cdfoo >t2 - gcc_cv_prog_cmp_skip=slowcompare - if cmp --ignore-initial=2 t1 t2 > /dev/null 2>&1; then - if cmp --ignore-initial=1 t1 t2 > /dev/null 2>&1; then - : - else - gcc_cv_prog_cmp_skip=gnucompare - fi - fi - if test $gcc_cv_prog_cmp_skip = slowcompare ; then - if cmp t1 t2 2 2 > /dev/null 2>&1; then - if cmp t1 t2 1 1 > /dev/null 2>&1; then - : - else - gcc_cv_prog_cmp_skip=fastcompare - fi - fi - fi - rm t1 t2 -]) -make_compare_target=$gcc_cv_prog_cmp_skip -AC_SUBST(make_compare_target) -]) - -dnl See if symbolic links work and if not, try to substitute either hard links or simple copy. -AC_DEFUN([gcc_AC_PROG_LN_S], -[AC_MSG_CHECKING(whether ln -s works) -AC_CACHE_VAL(gcc_cv_prog_LN_S, -[rm -f conftestdata_t -echo >conftestdata_f -if ln -s conftestdata_f conftestdata_t 2>/dev/null -then - gcc_cv_prog_LN_S="ln -s" -else - if ln conftestdata_f conftestdata_t 2>/dev/null - then - gcc_cv_prog_LN_S=ln - else - if cp -p conftestdata_f conftestdata_t 2>/dev/null - then - gcc_cv_prog_LN_S="cp -p" - else - gcc_cv_prog_LN_S=cp - fi - fi -fi -rm -f conftestdata_f conftestdata_t -])dnl -LN_S="$gcc_cv_prog_LN_S" -if test "$gcc_cv_prog_LN_S" = "ln -s"; then - AC_MSG_RESULT(yes) -else - if test "$gcc_cv_prog_LN_S" = "ln"; then - AC_MSG_RESULT([no, using ln]) - else - AC_MSG_RESULT([no, and neither does ln, so using $gcc_cv_prog_LN_S]) - fi -fi -AC_SUBST(LN_S)dnl -]) - -dnl Define MKDIR_TAKES_ONE_ARG if mkdir accepts only one argument instead -dnl of the usual 2. -AC_DEFUN([gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG], -[AC_CACHE_CHECK([if mkdir takes one argument], gcc_cv_mkdir_takes_one_arg, -[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([ -#include <sys/types.h> -#ifdef HAVE_SYS_STAT_H -# include <sys/stat.h> -#endif -#ifdef HAVE_UNISTD_H -# include <unistd.h> -#endif -#ifdef HAVE_DIRECT_H -# include <direct.h> -#endif], [mkdir ("foo", 0);])], - gcc_cv_mkdir_takes_one_arg=no, gcc_cv_mkdir_takes_one_arg=yes)]) -if test $gcc_cv_mkdir_takes_one_arg = yes ; then - AC_DEFINE(MKDIR_TAKES_ONE_ARG, 1, [Define if host mkdir takes a single argument.]) -fi -]) - -AC_DEFUN([gcc_AC_PROG_INSTALL], -[AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl -# Find a good install program. We prefer a C program (faster), -# so one script is as good as another. But avoid the broken or -# incompatible versions: -# SysV /etc/install, /usr/sbin/install -# SunOS /usr/etc/install -# IRIX /sbin/install -# AIX /bin/install -# AFS /usr/afsws/bin/install, which mishandles nonexistent args -# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff" -# ./install, which can be erroneously created by make from ./install.sh. -AC_MSG_CHECKING(for a BSD compatible install) -if test -z "$INSTALL"; then -AC_CACHE_VAL(ac_cv_path_install, -[ IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="${IFS}:" - for ac_dir in $PATH; do - # Account for people who put trailing slashes in PATH elements. - case "$ac_dir/" in - /|./|.//|/etc/*|/usr/sbin/*|/usr/etc/*|/sbin/*|/usr/afsws/bin/*|/usr/ucb/*) ;; - *) - # OSF1 and SCO ODT 3.0 have their own names for install. - for ac_prog in ginstall scoinst install; do - if test -f $ac_dir/$ac_prog; then - if test $ac_prog = install && - grep dspmsg $ac_dir/$ac_prog >/dev/null 2>&1; then - # AIX install. It has an incompatible calling convention. - # OSF/1 installbsd also uses dspmsg, but is usable. - : - else - ac_cv_path_install="$ac_dir/$ac_prog -c" - break 2 - fi - fi - done - ;; - esac - done - IFS="$ac_save_IFS" -])dnl - if test "${ac_cv_path_install+set}" = set; then - INSTALL="$ac_cv_path_install" - else - # As a last resort, use the slow shell script. We don't cache a - # path for INSTALL within a source directory, because that will - # break other packages using the cache if that directory is - # removed, or if the path is relative. - INSTALL="$ac_install_sh" - fi -fi -dnl We do special magic for INSTALL instead of AC_SUBST, to get -dnl relative paths right. -AC_MSG_RESULT($INSTALL) -AC_SUBST(INSTALL)dnl - -# Use test -z because SunOS4 sh mishandles braces in ${var-val}. -# It thinks the first close brace ends the variable substitution. -test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}' -AC_SUBST(INSTALL_PROGRAM)dnl - -test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644' -AC_SUBST(INSTALL_DATA)dnl -]) - -# mmap(2) blacklisting. Some platforms provide the mmap library routine -# but don't support all of the features we need from it. -AC_DEFUN([gcc_AC_FUNC_MMAP_BLACKLIST], -[ -AC_CHECK_HEADER([sys/mman.h], - [gcc_header_sys_mman_h=yes], [gcc_header_sys_mman_h=no]) -AC_CHECK_FUNC([mmap], [gcc_func_mmap=yes], [gcc_func_mmap=no]) -if test "$gcc_header_sys_mman_h" != yes \ - || test "$gcc_func_mmap" != yes; then - gcc_cv_func_mmap_file=no - gcc_cv_func_mmap_dev_zero=no - gcc_cv_func_mmap_anon=no -else - AC_CACHE_CHECK([whether read-only mmap of a plain file works], - gcc_cv_func_mmap_file, - [# Add a system to this blacklist if - # mmap(0, stat_size, PROT_READ, MAP_PRIVATE, fd, 0) doesn't return a - # memory area containing the same data that you'd get if you applied - # read() to the same fd. The only system known to have a problem here - # is VMS, where text files have record structure. - case "$host_os" in - vms* | ultrix*) - gcc_cv_func_mmap_file=no ;; - *) - gcc_cv_func_mmap_file=yes;; - esac]) - AC_CACHE_CHECK([whether mmap from /dev/zero works], - gcc_cv_func_mmap_dev_zero, - [# Add a system to this blacklist if it has mmap() but /dev/zero - # does not exist, or if mmapping /dev/zero does not give anonymous - # zeroed pages with both the following properties: - # 1. If you map N consecutive pages in with one call, and then - # unmap any subset of those pages, the pages that were not - # explicitly unmapped remain accessible. - # 2. If you map two adjacent blocks of memory and then unmap them - # both at once, they must both go away. - # Systems known to be in this category are Windows (all variants), - # VMS, and Darwin. - case "$host_os" in - vms* | cygwin* | pe | mingw* | darwin* | ultrix* | hpux10* | hpux11.00) - gcc_cv_func_mmap_dev_zero=no ;; - *) - gcc_cv_func_mmap_dev_zero=yes;; - esac]) - - # Unlike /dev/zero, the MAP_ANON(YMOUS) defines can be probed for. - AC_CACHE_CHECK([for MAP_ANON(YMOUS)], gcc_cv_decl_map_anon, - [AC_COMPILE_IFELSE([AC_LANG_PROGRAM( -[#include <sys/types.h> -#include <sys/mman.h> -#include <unistd.h> - -#ifndef MAP_ANONYMOUS -#define MAP_ANONYMOUS MAP_ANON -#endif -], -[int n = MAP_ANONYMOUS;])], - gcc_cv_decl_map_anon=yes, - gcc_cv_decl_map_anon=no)]) - - if test $gcc_cv_decl_map_anon = no; then - gcc_cv_func_mmap_anon=no - else - AC_CACHE_CHECK([whether mmap with MAP_ANON(YMOUS) works], - gcc_cv_func_mmap_anon, - [# Add a system to this blacklist if it has mmap() and MAP_ANON or - # MAP_ANONYMOUS, but using mmap(..., MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) - # doesn't give anonymous zeroed pages with the same properties listed - # above for use of /dev/zero. - # Systems known to be in this category are Windows, VMS, and SCO Unix. - case "$host_os" in - vms* | cygwin* | pe | mingw* | sco* | udk* ) - gcc_cv_func_mmap_anon=no ;; - *) - gcc_cv_func_mmap_anon=yes;; - esac]) - fi -fi - -if test $gcc_cv_func_mmap_file = yes; then - AC_DEFINE(HAVE_MMAP_FILE, 1, - [Define if read-only mmap of a plain file works.]) -fi -if test $gcc_cv_func_mmap_dev_zero = yes; then - AC_DEFINE(HAVE_MMAP_DEV_ZERO, 1, - [Define if mmap of /dev/zero works.]) -fi -if test $gcc_cv_func_mmap_anon = yes; then - AC_DEFINE(HAVE_MMAP_ANON, 1, - [Define if mmap with MAP_ANON(YMOUS) works.]) -fi -]) - -dnl Determine if enumerated bitfields are unsigned. ISO C says they can -dnl be either signed or unsigned. -dnl -AC_DEFUN([gcc_AC_C_ENUM_BF_UNSIGNED], -[AC_CACHE_CHECK(for unsigned enumerated bitfields, gcc_cv_enum_bf_unsigned, -[AC_RUN_IFELSE([AC_LANG_SOURCE([#include <stdlib.h> -enum t { BLAH = 128 } ; -struct s_t { enum t member : 8; } s ; -int main(void) -{ - s.member = BLAH; - if (s.member < 0) exit(1); - exit(0); - -}])], gcc_cv_enum_bf_unsigned=yes, gcc_cv_enum_bf_unsigned=no, gcc_cv_enum_bf_unsigned=yes)]) -if test $gcc_cv_enum_bf_unsigned = yes; then - AC_DEFINE(ENUM_BITFIELDS_ARE_UNSIGNED, 1, - [Define if enumerated bitfields are treated as unsigned values.]) -fi]) - -dnl Probe number of bits in a byte. -dnl Note C89 requires CHAR_BIT >= 8. -dnl -AC_DEFUN([gcc_AC_C_CHAR_BIT], -[AC_CACHE_CHECK(for CHAR_BIT, gcc_cv_decl_char_bit, -[AC_EGREP_CPP(found, -[#ifdef HAVE_LIMITS_H -#include <limits.h> -#endif -#ifdef CHAR_BIT -found -#endif], gcc_cv_decl_char_bit=yes, gcc_cv_decl_char_bit=no) -]) -if test $gcc_cv_decl_char_bit = no; then - AC_CACHE_CHECK(number of bits in a byte, gcc_cv_c_nbby, -[i=8 - gcc_cv_c_nbby= - while test $i -lt 65; do - AC_COMPILE_IFELSE([AC_LANG_PROGRAM(, - [switch(0) { - case (unsigned char)((unsigned long)1 << $i) == ((unsigned long)1 << $i): - case (unsigned char)((unsigned long)1<<($i-1)) == ((unsigned long)1<<($i-1)): - ; }])], - [gcc_cv_c_nbby=$i; break]) - i=`expr $i + 1` - done - test -z "$gcc_cv_c_nbby" && gcc_cv_c_nbby=failed -]) -if test $gcc_cv_c_nbby = failed; then - AC_MSG_ERROR(cannot determine number of bits in a byte) -else - AC_DEFINE_UNQUOTED(CHAR_BIT, $gcc_cv_c_nbby, - [Define as the number of bits in a byte, if `limits.h' doesn't.]) -fi -fi]) - -AC_DEFUN([gcc_AC_INITFINI_ARRAY], -[AC_ARG_ENABLE(initfini-array, - [ --enable-initfini-array use .init_array/.fini_array sections], - [], [ -AC_CACHE_CHECK(for .preinit_array/.init_array/.fini_array support, - gcc_cv_initfini_array, [dnl - AC_RUN_IFELSE([AC_LANG_SOURCE([ -static int x = -1; -int main (void) { return x; } -int foo (void) { x = 0; } -int (*fp) (void) __attribute__ ((section (".init_array"))) = foo;])], - [gcc_cv_initfini_array=yes], [gcc_cv_initfini_array=no], - [gcc_cv_initfini_array=no])]) - enable_initfini_array=$gcc_cv_initfini_array -]) -if test $enable_initfini_array = yes; then - AC_DEFINE(HAVE_INITFINI_ARRAY, 1, - [Define .init_array/.fini_array sections are available and working.]) -fi]) - -dnl # _gcc_COMPUTE_GAS_VERSION -dnl # Used by gcc_GAS_VERSION_GTE_IFELSE -dnl # -dnl # WARNING: -dnl # gcc_cv_as_gas_srcdir must be defined before this. -dnl # This gross requirement will go away eventually. -AC_DEFUN([_gcc_COMPUTE_GAS_VERSION], -[gcc_cv_as_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd -for f in $gcc_cv_as_bfd_srcdir/configure \ - $gcc_cv_as_gas_srcdir/configure \ - $gcc_cv_as_gas_srcdir/configure.in \ - $gcc_cv_as_gas_srcdir/Makefile.in ; do - gcc_cv_gas_version=`sed -n -e 's/^[[ ]]*\(VERSION=[[0-9]]*\.[[0-9]]*.*\)/\1/p' < $f` - if test x$gcc_cv_gas_version != x; then - break - fi -done -gcc_cv_gas_major_version=`expr "$gcc_cv_gas_version" : "VERSION=\([[0-9]]*\)"` -gcc_cv_gas_minor_version=`expr "$gcc_cv_gas_version" : "VERSION=[[0-9]]*\.\([[0-9]]*\)"` -gcc_cv_gas_patch_version=`expr "$gcc_cv_gas_version" : "VERSION=[[0-9]]*\.[[0-9]]*\.\([[0-9]]*\)"` -case $gcc_cv_gas_patch_version in - "") gcc_cv_gas_patch_version="0" ;; -esac -gcc_cv_gas_vers=`expr \( \( $gcc_cv_gas_major_version \* 1000 \) \ - + $gcc_cv_gas_minor_version \) \* 1000 \ - + $gcc_cv_gas_patch_version` -]) []dnl # _gcc_COMPUTE_GAS_VERSION - -dnl # gcc_GAS_VERSION_GTE_IFELSE([elf,] major, minor, patchlevel, -dnl # [command_if_true = :], [command_if_false = :]) -dnl # Check to see if the version of GAS is greater than or -dnl # equal to the specified version. -dnl # -dnl # The first ifelse() shortens the shell code if the patchlevel -dnl # is unimportant (the usual case). The others handle missing -dnl # commands. Note that the tests are structured so that the most -dnl # common version number cases are tested first. -AC_DEFUN([_gcc_GAS_VERSION_GTE_IFELSE], -[ifelse([$1], elf, - [if test $in_tree_gas_is_elf = yes \ - &&], - [if]) test $gcc_cv_gas_vers -ge `expr \( \( $2 \* 1000 \) + $3 \) \* 1000 + $4` - then dnl -ifelse([$5],,:,[$5])[]dnl -ifelse([$6],,,[ - else $6]) -fi]) - -AC_DEFUN([gcc_GAS_VERSION_GTE_IFELSE], -[AC_REQUIRE([_gcc_COMPUTE_GAS_VERSION])dnl -ifelse([$1], elf, [_gcc_GAS_VERSION_GTE_IFELSE($@)], - [_gcc_GAS_VERSION_GTE_IFELSE(,$@)])]) - -dnl gcc_GAS_CHECK_FEATURE(description, cv, [[elf,]major,minor,patchlevel], -dnl [extra switches to as], [assembler input], -dnl [extra testing logic], [command if feature available]) -dnl -dnl Checks for an assembler feature. If we are building an in-tree -dnl gas, the feature is available if the associated assembler version -dnl is greater than or equal to major.minor.patchlevel. If not, then -dnl ASSEMBLER INPUT is fed to the assembler and the feature is available -dnl if assembly succeeds. If EXTRA TESTING LOGIC is not the empty string, -dnl then it is run instead of simply setting CV to "yes" - it is responsible -dnl for doing so, if appropriate. -AC_DEFUN([gcc_GAS_CHECK_FEATURE], -[AC_CACHE_CHECK([assembler for $1], [$2], - [[$2]=no - ifelse([$3],,,[dnl - if test $in_tree_gas = yes; then - gcc_GAS_VERSION_GTE_IFELSE($3, [[$2]=yes]) - el])if test x$gcc_cv_as != x; then - echo ifelse(m4_substr([$5],0,1),[$], "[$5]", '[$5]') > conftest.s - if AC_TRY_COMMAND([$gcc_cv_as $4 -o conftest.o conftest.s >&AS_MESSAGE_LOG_FD]) - then - ifelse([$6],, [$2]=yes, [$6]) - else - echo "configure: failed program was" >&AS_MESSAGE_LOG_FD - cat conftest.s >&AS_MESSAGE_LOG_FD - fi - rm -f conftest.o conftest.s - fi]) -ifelse([$7],,,[dnl -if test $[$2] = yes; then - $7 -fi])]) - -dnl GCC_TARGET_TEMPLATE(KEY) -dnl ------------------------ -dnl Define KEY as a valid configure key on the target machine. - -m4_define([GCC_TARGET_TEMPLATE], -[m4_define([GCC_TARGET_TEMPLATE($1)],[])]) - -dnl AH_TEMPLATE(KEY, DESCRIPTION) -dnl ----------------------------- -dnl Issue an autoheader template for KEY, i.e., a comment composed of -dnl DESCRIPTION (properly wrapped), and then #undef KEY. Redefinition -dnl of the macro in autoheader.m4, to support definition of only a few -dnl keys while compiling target libraries. - -m4_define([AH_TEMPLATE], -[AH_VERBATIM([$1],m4_text_wrap([$2 */], [ ], [/* ]) -m4_ifdef([GCC_TARGET_TEMPLATE($1)],[],[#ifndef USED_FOR_TARGET -])[#undef $1]m4_ifdef([GCC_TARGET_TEMPLATE($1)],[],[ -#endif -]))]) - -dnl Make sure that build_exeext is looked for -AC_DEFUN([gcc_AC_BUILD_EXEEXT], [ -ac_executable_extensions="$build_exeext"]) - |