diff options
Diffstat (limited to 'acinclude.m4')
| -rw-r--r-- | acinclude.m4 | 253 |
1 files changed, 212 insertions, 41 deletions
diff --git a/acinclude.m4 b/acinclude.m4 index 8f4faff..574ea37 100644 --- a/acinclude.m4 +++ b/acinclude.m4 @@ -85,50 +85,123 @@ changequote([,])dnl ])dnl dnl --------------------------------------------------------------------------- -dnl Got this from the GNU fileutils 3.16r distribution +dnl Got this from the GNU tar 1.13.11 distribution dnl by Paul Eggert <eggert@twinsun.com> dnl --------------------------------------------------------------------------- -dnl The problem is that the default compilation flags in Solaris 2.6 won't -dnl let programs access large files; you need to tell the compiler that -dnl you actually want your programs to work on large files. For more -dnl details about this brain damage please see: +dnl By default, many hosts won't let programs access large files; +dnl one must use special compiler options to get large-file access to work. +dnl For more details about this brain damage please see: dnl http://www.sas.com/standards/large.file/x_open.20Mar96.html -AC_DEFUN(AC_LFS, -[dnl - # If available, prefer support for large files unless the user specified - # one of the CPPFLAGS, LDFLAGS, or LIBS variables. - AC_MSG_CHECKING(whether large file support needs explicit enabling) - ac_getconfs='' - ac_result=yes - ac_set='' - ac_shellvars='CPPFLAGS LDFLAGS LIBS' - for ac_shellvar in $ac_shellvars; do - case $ac_shellvar in - CPPFLAGS) ac_lfsvar=LFS_CFLAGS ;; - *) ac_lfsvar=LFS_$ac_shellvar ;; - esac - eval test '"${'$ac_shellvar'+set}"' = set && ac_set=$ac_shellvar - (getconf $ac_lfsvar) >/dev/null 2>&1 || { ac_result=no; break; } - ac_getconf=`getconf $ac_lfsvar` - ac_getconfs=$ac_getconfs$ac_getconf - eval ac_test_$ac_shellvar=\$ac_getconf - done - case "$ac_result$ac_getconfs" in - yes) ac_result=no ;; - esac - case "$ac_result$ac_set" in - yes?*) ac_result="yes, but $ac_set is already set, so use its settings" - esac - AC_MSG_RESULT($ac_result) - case $ac_result in - yes) - for ac_shellvar in $ac_shellvars; do - eval $ac_shellvar=\$ac_test_$ac_shellvar - done ;; - esac -]) +dnl Written by Paul Eggert <eggert@twinsun.com>. + +dnl Internal subroutine of AC_SYS_LARGEFILE. +dnl AC_SYS_LARGEFILE_FLAGS(FLAGSNAME) +AC_DEFUN(AC_SYS_LARGEFILE_FLAGS, + [AC_CACHE_CHECK([for $1 value to request large file support], + ac_cv_sys_largefile_$1, + [ac_cv_sys_largefile_$1=`($GETCONF LFS_$1) 2>/dev/null` || { + ac_cv_sys_largefile_$1=no + ifelse($1, CFLAGS, + [case "$host_os" in + # IRIX 6.2 and later require cc -n32. +changequote(, )dnl + irix6.[2-9]* | irix6.1[0-9]* | irix[7-9].* | irix[1-9][0-9]*) +changequote([, ])dnl + if test "$GCC" != yes; then + ac_cv_sys_largefile_CFLAGS=-n32 + fi + ac_save_CC="$CC" + CC="$CC $ac_cv_sys_largefile_CFLAGS" + AC_TRY_LINK(, , , ac_cv_sys_largefile_CFLAGS=no) + CC="$ac_save_CC" + esac]) + }])]) + +dnl Internal subroutine of AC_SYS_LARGEFILE. +dnl AC_SYS_LARGEFILE_SPACE_APPEND(VAR, VAL) +AC_DEFUN(AC_SYS_LARGEFILE_SPACE_APPEND, + [case $2 in + no) ;; + ?*) + case "[$]$1" in + '') $1=$2 ;; + *) $1=[$]$1' '$2 ;; + esac ;; + esac]) + +dnl Internal subroutine of AC_SYS_LARGEFILE. +dnl AC_SYS_LARGEFILE_MACRO_VALUE(C-MACRO, CACHE-VAR, COMMENT, CODE-TO-SET-DEFAULT) +AC_DEFUN(AC_SYS_LARGEFILE_MACRO_VALUE, + [AC_CACHE_CHECK([for $1], $2, + [$2=no +changequote(, )dnl + $4 + for ac_flag in $ac_cv_sys_largefile_CFLAGS no; do + case "$ac_flag" in + -D$1) + $2=1 ;; + -D$1=*) + $2=`expr " $ac_flag" : '[^=]*=\(.*\)'` ;; + esac + done +changequote([, ])dnl + ]) + if test "[$]$2" != no; then + AC_DEFINE_UNQUOTED([$1], [$]$2, [$3]) + fi]) + +AC_DEFUN(AC_SYS_LARGEFILE, + [AC_REQUIRE([AC_CANONICAL_HOST]) + AC_ARG_ENABLE(largefile, + [ --disable-largefile omit support for large files]) + if test "$enable_largefile" != no; then + AC_CHECK_TOOL(GETCONF, getconf) + AC_SYS_LARGEFILE_FLAGS(CFLAGS) + AC_SYS_LARGEFILE_FLAGS(LDFLAGS) + AC_SYS_LARGEFILE_FLAGS(LIBS) + + for ac_flag in $ac_cv_sys_largefile_CFLAGS no; do + case "$ac_flag" in + no) ;; + -D_FILE_OFFSET_BITS=*) ;; + -D_LARGEFILE_SOURCE | -D_LARGEFILE_SOURCE=*) ;; + -D_LARGE_FILES | -D_LARGE_FILES=*) ;; + -D?* | -I?*) + AC_SYS_LARGEFILE_SPACE_APPEND(CPPFLAGS, "$ac_flag") ;; + *) + AC_SYS_LARGEFILE_SPACE_APPEND(CFLAGS, "$ac_flag") ;; + esac + done + AC_SYS_LARGEFILE_SPACE_APPEND(LDFLAGS, "$ac_cv_sys_largefile_LDFLAGS") + AC_SYS_LARGEFILE_SPACE_APPEND(LIBS, "$ac_cv_sys_largefile_LIBS") + AC_SYS_LARGEFILE_MACRO_VALUE(_FILE_OFFSET_BITS, + ac_cv_sys_file_offset_bits, + [Number of bits in a file offset, on hosts where this is settable.], + [case "$host_os" in + # HP-UX 10.20 and later + hpux10.[2-9][0-9]* | hpux1[1-9]* | hpux[2-9][0-9]*) + ac_cv_sys_file_offset_bits=64 ;; + esac]) + AC_SYS_LARGEFILE_MACRO_VALUE(_LARGEFILE_SOURCE, + ac_cv_sys_largefile_source, + [Define to make fseeko etc. visible, on some hosts.], + [case "$host_os" in + # HP-UX 10.20 and later + hpux10.[2-9][0-9]* | hpux1[1-9]* | hpux[2-9][0-9]*) + ac_cv_sys_largefile_source=1 ;; + esac]) + AC_SYS_LARGEFILE_MACRO_VALUE(_LARGE_FILES, + ac_cv_sys_large_files, + [Define for large files, on AIX-style hosts.], + [case "$host_os" in + # AIX 4.2 and later + aix4.[2-9]* | aix4.1[0-9]* | aix[5-9].* | aix[1-9][0-9]*) + ac_cv_sys_large_files=1 ;; + esac]) + fi + ]) dnl --------------------------------------------------------------------------- @@ -197,8 +270,9 @@ AC_DEFUN(jm_AC_TYPE_UINTMAX_T, AC_REQUIRE([jm_AC_HEADER_INTTYPES_H]) if test $jm_ac_cv_header_inttypes_h = no; then AC_CACHE_CHECK([for unsigned long long], ac_cv_type_unsigned_long_long, - [AC_TRY_COMPILE([], - [unsigned long long i = (unsigned long long) -1;], + [AC_TRY_LINK([unsigned long long ull = 1; int i = 63;], + [unsigned long long ullmax = (unsigned long long) -1; + return ull << i | ull >> i | ullmax / ull | ullmax % ull;], ac_cv_type_unsigned_long_long=yes, ac_cv_type_unsigned_long_long=no)]) if test $ac_cv_type_unsigned_long_long = yes; then @@ -297,3 +371,100 @@ changequote([,]),dnl AC_DEFINE_UNQUOTED(SELECT_FD_SET_CAST,$ac_cast) fi ]) + + +# The following is taken from automake 1.4, +# except that it prefers the compiler option -Ae to "-Aa -D_HPUX_SOURCE" +# because only the former supports 64-bit integral types on HP-UX 10.20. + +## ----------------------------------------- ## +## ANSIfy the C compiler whenever possible. ## +## From Franc,ois Pinard ## +## ----------------------------------------- ## + +# serial 2 + +# @defmac AC_PROG_CC_STDC +# @maindex PROG_CC_STDC +# @ovindex CC +# If the C compiler in not in ANSI C mode by default, try to add an option +# to output variable @code{CC} to make it so. This macro tries various +# options that select ANSI C on some system or another. It considers the +# compiler to be in ANSI C mode if it handles function prototypes correctly. +# +# If you use this macro, you should check after calling it whether the C +# compiler has been set to accept ANSI C; if not, the shell variable +# @code{am_cv_prog_cc_stdc} is set to @samp{no}. If you wrote your source +# code in ANSI C, you can make an un-ANSIfied copy of it by using the +# program @code{ansi2knr}, which comes with Ghostscript. +# @end defmac + +AC_DEFUN(AM_PROG_CC_STDC, +[AC_REQUIRE([AC_PROG_CC]) +AC_BEFORE([$0], [AC_C_INLINE]) +AC_BEFORE([$0], [AC_C_CONST]) +dnl Force this before AC_PROG_CPP. Some cpp's, eg on HPUX, require +dnl a magic option to avoid problems with ANSI preprocessor commands +dnl like #elif. +dnl FIXME: can't do this because then AC_AIX won't work due to a +dnl circular dependency. +dnl AC_BEFORE([$0], [AC_PROG_CPP]) +AC_MSG_CHECKING(for ${CC-cc} option to accept ANSI C) +AC_CACHE_VAL(am_cv_prog_cc_stdc, +[am_cv_prog_cc_stdc=no +ac_save_CC="$CC" +# Don't try gcc -ansi; that turns off useful extensions and +# breaks some systems' header files. +# AIX -qlanglvl=ansi +# Ultrix and OSF/1 -std1 +# HP-UX -Aa -D_HPUX_SOURCE +# SVR4 -Xc -D__EXTENSIONS__ +for ac_arg in "" -qlanglvl=ansi -std1 -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__" +do + CC="$ac_save_CC $ac_arg" + AC_TRY_COMPILE( +[#include <stdarg.h> +#include <stdio.h> +#include <sys/types.h> +#include <sys/stat.h> +/* Most of the following tests are stolen from RCS 5.7's src/conf.sh. */ +struct buf { int x; }; +FILE * (*rcsopen) (struct buf *, struct stat *, int); +static char *e (p, i) + char **p; + int i; +{ + return p[i]; +} +static char *f (char * (*g) (char **, int), char **p, ...) +{ + char *s; + va_list v; + va_start (v,p); + s = g (p, va_arg (v,int)); + va_end (v); + return s; +} +int test (int i, double x); +struct s1 {int (*f) (int a);}; +struct s2 {int (*f) (double a);}; +int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int); +int argc; +char **argv; +], [ +return f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1]; +], +[am_cv_prog_cc_stdc="$ac_arg"; break]) +done +CC="$ac_save_CC" +]) +if test -z "$am_cv_prog_cc_stdc"; then + AC_MSG_RESULT([none needed]) +else + AC_MSG_RESULT($am_cv_prog_cc_stdc) +fi +case "x$am_cv_prog_cc_stdc" in + x|xno) ;; + *) CC="$CC $am_cv_prog_cc_stdc" ;; +esac +]) |