X-Git-Url: https://ncurses.scripts.mit.edu/?a=blobdiff_plain;ds=sidebyside;f=aclocal.m4;h=994d4aef53e96f6dd76da7c9c366338659970110;hb=a7d99bb6b29485693a21c0cc70d7925f2211769c;hp=0c15200e20bdfc1daf7c0f266b7c0a30d957661c;hpb=8f527f87c0b979d9c2598ef5c3394463af288468;p=ncurses.git diff --git a/aclocal.m4 b/aclocal.m4 index 0c15200e..994d4aef 100644 --- a/aclocal.m4 +++ b/aclocal.m4 @@ -28,7 +28,7 @@ dnl*************************************************************************** dnl dnl Author: Thomas E. Dickey 1995-on dnl -dnl $Id: aclocal.m4,v 1.451 2008/08/04 10:26:11 tom Exp $ +dnl $Id: aclocal.m4,v 1.457 2008/09/06 21:36:49 tom Exp $ dnl Macros used in NCURSES auto-configuration script. dnl dnl These macros are maintained separately from NCURSES. The copyright on @@ -331,6 +331,30 @@ You have the following choices: fi ])dnl dnl --------------------------------------------------------------------------- +dnl CF_AWK_BIG_PRINTF version: 1 updated: 2008/09/06 17:17:18 +dnl ----------------- +dnl Check if awk can handle big strings using printf. Some older versions of +dnl awk choke on large strings passed via "%s". +dnl +dnl $1 = desired string size +dnl $2 = variable to set with result +AC_DEFUN([CF_AWK_BIG_PRINTF], +[ + case x$AWK in #(vi + x) + eval $2=no + ;; + *) #(vi + if ( ${AWK} 'BEGIN { xx = "x"; while (length(xx) < $1) { xx = xx "x"; }; printf("%s\n", xx); }' \ + | $AWK '{ if (length([$]0) != $1) exit 1; }' 2>/dev/null >/dev/null ); then + eval $2=yes + else + eval $2=no + fi + ;; + esac +])dnl +dnl --------------------------------------------------------------------------- dnl CF_BOOL_DECL version: 8 updated: 2004/01/30 15:51:18 dnl ------------ dnl Test if 'bool' is a builtin type in the configured C++ compiler. Some @@ -649,13 +673,14 @@ if test ".$system_name" != ".$cf_cv_system_name" ; then fi ])dnl dnl --------------------------------------------------------------------------- -dnl CF_CHECK_ERRNO version: 9 updated: 2001/12/30 18:03:23 +dnl CF_CHECK_ERRNO version: 10 updated: 2008/08/22 16:33:22 dnl -------------- dnl Check for data that is usually declared in or , e.g., dnl the 'errno' variable. Define a DECL_xxx symbol if we must declare it dnl ourselves. dnl dnl $1 = the name to check +dnl $2 = the assumed type AC_DEFUN([CF_CHECK_ERRNO], [ AC_CACHE_CHECK(if external $1 is declared, cf_cv_dcl_$1,[ @@ -666,7 +691,7 @@ AC_CACHE_CHECK(if external $1 is declared, cf_cv_dcl_$1,[ #include #include #include ], - [long x = (long) $1], + ifelse($2,,int,$2) x = (ifelse($2,,int,$2)) $1, [cf_cv_dcl_$1=yes], [cf_cv_dcl_$1=no]) ]) @@ -677,7 +702,7 @@ if test "$cf_cv_dcl_$1" = no ; then fi # It's possible (for near-UNIX clones) that the data doesn't exist -CF_CHECK_EXTERN_DATA($1,int) +CF_CHECK_EXTERN_DATA($1,ifelse($2,,int,$2)) ])dnl dnl --------------------------------------------------------------------------- dnl CF_CHECK_EXTERN_DATA version: 3 updated: 2001/12/30 18:03:23 @@ -3930,7 +3955,7 @@ AC_MSG_RESULT(no) fi ])dnl dnl --------------------------------------------------------------------------- -dnl CF_SHARED_OPTS version: 48 updated: 2008/06/14 15:08:17 +dnl CF_SHARED_OPTS version: 49 updated: 2008/09/06 17:36:03 dnl -------------- dnl -------------- dnl Attempt to determine the appropriate CC/LD options for creating a shared @@ -4065,8 +4090,10 @@ CF_EOF # tested with IRIX 5.2 and 'cc'. if test "$GCC" != yes; then CC_SHARED_OPTS='-KPIC' + MK_SHARED_LIB='${CC} -shared -rdata_shared -soname `basename $[@]` -o $[@]' + else + MK_SHARED_LIB='${CC} -shared -Wl,-soname,`basename $[@]` -o $[@]' fi - MK_SHARED_LIB='${CC} -shared -rdata_shared -soname `basename $[@]` -o $[@]' cf_cv_rm_so_locs=yes ;; linux*|gnu*|k*bsd*-gnu) @@ -4862,6 +4889,32 @@ fi ]) ])dnl dnl --------------------------------------------------------------------------- +dnl CF_WEAK_SYMBOLS version: 1 updated: 2008/08/16 19:18:06 +dnl --------------- +dnl Check for compiler-support for weak symbols. +dnl This works with "recent" gcc. +AC_DEFUN([CF_WEAK_SYMBOLS],[ +AC_CACHE_CHECK(if $CC supports weak symbols,cf_cv_weak_symbols,[ + +AC_TRY_COMPILE([ +#include ], +[ +#if defined(__GNUC__) +# if defined __USE_ISOC99 +# define _cat_pragma(exp) _Pragma(#exp) +# define _weak_pragma(exp) _cat_pragma(weak name) +# else +# define _weak_pragma(exp) +# endif +# define _declare(name) __extension__ extern __typeof__(name) name +# define weak_symbol(name) _weak_pragma(name) _declare(name) __attribute__((weak)) +#endif + +weak_symbol(fopen); +],[cf_cv_weak_symbols=yes],[cf_cv_weak_symbols=no]) +]) +])dnl +dnl --------------------------------------------------------------------------- dnl CF_WITH_ABI_VERSION version: 1 updated: 2003/09/20 18:12:49 dnl ------------------- dnl Allow library's ABI to be overridden. Generally this happens when a @@ -5139,7 +5192,7 @@ AC_SUBST($3)dnl ])dnl dnl --------------------------------------------------------------------------- -dnl CF_WITH_PTHREAD version: 1 updated: 2008/03/29 13:42:21 +dnl CF_WITH_PTHREAD version: 2 updated: 2008/08/23 18:26:05 dnl --------------- dnl Check for POSIX thread library. AC_DEFUN([CF_WITH_PTHREAD], @@ -5154,13 +5207,24 @@ AC_MSG_RESULT($with_pthread) if test "$with_pthread" != no ; then AC_CHECK_HEADER(pthread.h,[ AC_DEFINE(HAVE_PTHREADS_H) - AC_CHECK_LIB(pthread,pthread_create,[ + + AC_MSG_CHECKING(if we can link with the pthread library) + cf_save_LIBS="$LIBS" + LIBS="-lpthread $LIBS" + AC_TRY_LINK([ +#include +],[ + int rc = pthread_create(0,0,0,0); +],[with_pthread=yes],[with_pthread=no]) + LIBS="$cf_save_LIBS" + AC_MSG_RESULT($with_pthread) + + if test "$with_pthread" = yes ; then LIBS="-lpthread $LIBS" AC_DEFINE(HAVE_LIBPTHREADS) - with_pthread=yes - ],[ + else AC_MSG_ERROR(Cannot link with pthread library) - ]) + fi ]) fi ])