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Diffstat (limited to 'mit-pthreads/config/aclocal.m4')
| -rwxr-xr-x | mit-pthreads/config/aclocal.m4 | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/mit-pthreads/config/aclocal.m4 b/mit-pthreads/config/aclocal.m4 new file mode 100755 index 00000000000..2a5cd3e9cbf --- /dev/null +++ b/mit-pthreads/config/aclocal.m4 @@ -0,0 +1,94 @@ +dnl Autoconf extensions for pthreads package. +dnl +ifelse(regexp(AC_DEFINE(xxxxx),.*@@@.*),-1,,[define(IS_AUTOHEADER)])])dnl +dnl +dnl Now, the real stuff needed by the pthreads package. +dnl +AC_DEFUN([PTHREADS_CHECK_ONE_SYSCALL], +[AC_MSG_CHECKING(for syscall $1) +AC_CACHE_VAL(pthreads_cv_syscall_$1, +AC_TRY_LINK([ +/* FIXME: This list should be generated from info in configure.in. */ +#ifdef HAVE_SYSCALL_H +#include <syscall.h> +#else +#ifdef HAVE_SYS_SYSCALL_H +#include <sys/syscall.h> +#else +where is your syscall header file?? +#endif +#endif +],[ +int x; +x = SYS_$1 ; +], +eval pthreads_cv_syscall_$1=yes, +eval pthreads_cv_syscall_$1=no)) +if eval test \$pthreads_cv_syscall_$1 = yes ; then + pthreads_syscall_present=yes + available_syscalls="$available_syscalls $1" +dnl Can't just do the obvious substitution here or autoheader gets +dnl sorta confused. (Sigh.) Getting the requoting of the brackets right +dnl would be a pain too. + macroname=HAVE_SYSCALL_`echo $1 | tr '[[[a-z]]]' '[[[A-Z]]]'` + AC_DEFINE_UNQUOTED($macroname) +else + pthreads_syscall_present=no + missing_syscalls="$missing_syscalls $1" +fi +AC_MSG_RESULT($pthreads_syscall_present) +])dnl +dnl +AC_DEFUN(PTHREADS_CHECK_SYSCALLS,dnl +ifdef([IS_AUTOHEADER],[# +dnl Need to fake out autoheader, since there's no way to add a new class +dnl of features to generate config.h.in entries for. +@@@syscalls="$1"@@@ +@@@funcs="$funcs syscall_`echo $syscalls | sed 's/ / syscall_/g'`"@@@ +], +[pthreads_syscall_list="$1" +for pthreads_syscallname in $pthreads_syscall_list ; do + PTHREADS_CHECK_ONE_SYSCALL([$]pthreads_syscallname) +done +]))dnl +dnl +dnl Requote each argument. +define([requote], [ifelse($#, 0, , $#, 1, "$1", + "$1" [requote(builtin(shift,$@))])])dnl +dnl +dnl Determine proper typedef value for a typedef name, and define a +dnl C macro to expand to that type. (A shell variable with that value +dnl is also created.) If none of the specified types to try match, the +dnl macro is left undefined, and the shell variable empty. If the +dnl typedef name cannot be found in the specified header files, this +dnl test errors out; perhaps it should be changed to simply leave the +dnl macro undefined... +dnl +dnl PTHREADS_FIND_TYPE(typedefname,varname,includes,possible values...) +dnl +AC_DEFUN(PTHREADS_FIND_TYPE, +ifdef([IS_AUTOHEADER],[# +@@@syms="$syms $2"@@@ +],[dnl +AC_MSG_CHECKING(type of $1) +AC_CACHE_VAL(pthreads_cv_type_$1, +[AC_TRY_COMPILE([$3],[ extern $1 foo; ], +[ for try_type in [requote(builtin(shift,builtin(shift,builtin(shift,$@))))] ; do + AC_TRY_COMPILE([$3],[ extern $1 foo; extern $try_type foo; ], + [ pthreads_cv_type_$1="$try_type" ; break ]) + done], + AC_MSG_ERROR(Can't find system typedef for $1.))]) +if test -n "$pthreads_cv_type_$1" ; then + AC_DEFINE_UNQUOTED($2,$pthreads_cv_type_$1) +fi +$2=$pthreads_cv_type_$1 +AC_MSG_RESULT($pthreads_cv_type_$1)]))dnl +dnl +dnl +dnl Like above, but the list of types to try is pre-specified. +dnl +AC_DEFUN(PTHREADS_FIND_INTEGRAL_TYPE,[ +PTHREADS_FIND_TYPE([$1], [$2], [$3], + int, unsigned int, long, unsigned long, + short, unsigned short, char, unsigned char, + long long, unsigned long long)])dnl |