dnl $Id: aclocal.m4,v 4.6 2005/12/08 20:43:14 tom Exp $ dnl dnl Macros for cproto configure script (T.Dickey) dnl --------------------------------------------------------------------------- dnl --------------------------------------------------------------------------- dnl CF_ADD_CFLAGS version: 7 updated: 2004/04/25 17:48:30 dnl ------------- dnl Copy non-preprocessor flags to $CFLAGS, preprocessor flags to $CPPFLAGS dnl The second parameter if given makes this macro verbose. dnl dnl Put any preprocessor definitions that use quoted strings in $EXTRA_CPPFLAGS, dnl to simplify use of $CPPFLAGS in compiler checks, etc., that are easily dnl confused by the quotes (which require backslashes to keep them usable). AC_DEFUN([CF_ADD_CFLAGS], [ cf_fix_cppflags=no cf_new_cflags= cf_new_cppflags= cf_new_extra_cppflags= for cf_add_cflags in $1 do case $cf_fix_cppflags in no) case $cf_add_cflags in #(vi -undef|-nostdinc*|-I*|-D*|-U*|-E|-P|-C) #(vi case $cf_add_cflags in -D*) cf_tst_cflags=`echo ${cf_add_cflags} |sed -e 's/^-D[[^=]]*='\''\"[[^"]]*//'` test "${cf_add_cflags}" != "${cf_tst_cflags}" \ && test -z "${cf_tst_cflags}" \ && cf_fix_cppflags=yes if test $cf_fix_cppflags = yes ; then cf_new_extra_cppflags="$cf_new_extra_cppflags $cf_add_cflags" continue elif test "${cf_tst_cflags}" = "\"'" ; then cf_new_extra_cppflags="$cf_new_extra_cppflags $cf_add_cflags" continue fi ;; esac case "$CPPFLAGS" in *$cf_add_cflags) #(vi ;; *) #(vi cf_new_cppflags="$cf_new_cppflags $cf_add_cflags" ;; esac ;; *) cf_new_cflags="$cf_new_cflags $cf_add_cflags" ;; esac ;; yes) cf_new_extra_cppflags="$cf_new_extra_cppflags $cf_add_cflags" cf_tst_cflags=`echo ${cf_add_cflags} |sed -e 's/^[[^"]]*"'\''//'` test "${cf_add_cflags}" != "${cf_tst_cflags}" \ && test -z "${cf_tst_cflags}" \ && cf_fix_cppflags=no ;; esac done if test -n "$cf_new_cflags" ; then ifelse($2,,,[CF_VERBOSE(add to \$CFLAGS $cf_new_cflags)]) CFLAGS="$CFLAGS $cf_new_cflags" fi if test -n "$cf_new_cppflags" ; then ifelse($2,,,[CF_VERBOSE(add to \$CPPFLAGS $cf_new_cppflags)]) CPPFLAGS="$cf_new_cppflags $CPPFLAGS" fi if test -n "$cf_new_extra_cppflags" ; then ifelse($2,,,[CF_VERBOSE(add to \$EXTRA_CPPFLAGS $cf_new_extra_cppflags)]) EXTRA_CPPFLAGS="$cf_new_extra_cppflags $EXTRA_CPPFLAGS" fi AC_SUBST(EXTRA_CPPFLAGS) ])dnl dnl --------------------------------------------------------------------------- dnl CF_ANSI_CC_CHECK version: 9 updated: 2001/12/30 17:53:34 dnl ---------------- dnl This is adapted from the macros 'fp_PROG_CC_STDC' and 'fp_C_PROTOTYPES' dnl in the sharutils 4.2 distribution. AC_DEFUN([CF_ANSI_CC_CHECK], [ AC_CACHE_CHECK(for ${CC-cc} option to accept ANSI C, cf_cv_ansi_cc,[ cf_cv_ansi_cc=no cf_save_CFLAGS="$CFLAGS" cf_save_CPPFLAGS="$CPPFLAGS" # Don't try gcc -ansi; that turns off useful extensions and # breaks some systems' header files. # AIX -qlanglvl=ansi # Ultrix and OSF/1 -std1 # HP-UX -Aa -D_HPUX_SOURCE # SVR4 -Xc # UnixWare 1.2 (cannot use -Xc, since ANSI/POSIX clashes) for cf_arg in "-DCC_HAS_PROTOS" \ "" \ -qlanglvl=ansi \ -std1 \ -Ae \ "-Aa -D_HPUX_SOURCE" \ -Xc do CF_ADD_CFLAGS($cf_arg) AC_TRY_COMPILE( [ #ifndef CC_HAS_PROTOS #if !defined(__STDC__) || (__STDC__ != 1) choke me #endif #endif ],[ int test (int i, double x); struct s1 {int (*f) (int a);}; struct s2 {int (*f) (double a);};], [cf_cv_ansi_cc="$cf_arg"; break]) done CFLAGS="$cf_save_CFLAGS" CPPFLAGS="$cf_save_CPPFLAGS" ]) if test "$cf_cv_ansi_cc" != "no"; then if test ".$cf_cv_ansi_cc" != ".-DCC_HAS_PROTOS"; then CF_ADD_CFLAGS($cf_cv_ansi_cc) else AC_DEFINE(CC_HAS_PROTOS) fi fi ])dnl dnl --------------------------------------------------------------------------- dnl CF_ANSI_CC_REQD version: 3 updated: 1997/09/06 13:40:44 dnl --------------- dnl For programs that must use an ANSI compiler, obtain compiler options that dnl will make it recognize prototypes. We'll do preprocessor checks in other dnl macros, since tools such as unproto can fake prototypes, but only part of dnl the preprocessor. AC_DEFUN([CF_ANSI_CC_REQD], [AC_REQUIRE([CF_ANSI_CC_CHECK]) if test "$cf_cv_ansi_cc" = "no"; then AC_ERROR( [Your compiler does not appear to recognize prototypes. You have the following choices: a. adjust your compiler options b. get an up-to-date compiler c. use a wrapper such as unproto]) fi ])dnl dnl --------------------------------------------------------------------------- dnl CF_ARG_DISABLE version: 3 updated: 1999/03/30 17:24:31 dnl -------------- dnl Allow user to disable a normally-on option. AC_DEFUN([CF_ARG_DISABLE], [CF_ARG_OPTION($1,[$2],[$3],[$4],yes)])dnl dnl --------------------------------------------------------------------------- dnl CF_ARG_OPTION version: 3 updated: 1997/10/18 14:42:41 dnl ------------- dnl Restricted form of AC_ARG_ENABLE that ensures user doesn't give bogus dnl values. dnl dnl Parameters: dnl $1 = option name dnl $2 = help-string dnl $3 = action to perform if option is not default dnl $4 = action if perform if option is default dnl $5 = default option value (either 'yes' or 'no') AC_DEFUN([CF_ARG_OPTION], [AC_ARG_ENABLE($1,[$2],[test "$enableval" != ifelse($5,no,yes,no) && enableval=ifelse($5,no,no,yes) if test "$enableval" != "$5" ; then ifelse($3,,[ :]dnl ,[ $3]) ifelse($4,,,[ else $4]) fi],[enableval=$5 ifelse($4,,,[ $4 ])dnl ])])dnl dnl --------------------------------------------------------------------------- dnl CF_CHECK_CACHE version: 10 updated: 2004/05/23 13:03:31 dnl -------------- dnl Check if we're accidentally using a cache from a different machine. dnl Derive the system name, as a check for reusing the autoconf cache. dnl dnl If we've packaged config.guess and config.sub, run that (since it does a dnl better job than uname). Normally we'll use AC_CANONICAL_HOST, but allow dnl an extra parameter that we may override, e.g., for AC_CANONICAL_SYSTEM dnl which is useful in cross-compiles. dnl dnl Note: we would use $ac_config_sub, but that is one of the places where dnl autoconf 2.5x broke compatibility with autoconf 2.13 AC_DEFUN([CF_CHECK_CACHE], [ if test -f $srcdir/config.guess || test -f $ac_aux_dir/config.guess ; then ifelse([$1],,[AC_CANONICAL_HOST],[$1]) system_name="$host_os" else system_name="`(uname -s -r) 2>/dev/null`" if test -z "$system_name" ; then system_name="`(hostname) 2>/dev/null`" fi fi test -n "$system_name" && AC_DEFINE_UNQUOTED(SYSTEM_NAME,"$system_name") AC_CACHE_VAL(cf_cv_system_name,[cf_cv_system_name="$system_name"]) test -z "$system_name" && system_name="$cf_cv_system_name" test -n "$cf_cv_system_name" && AC_MSG_RESULT(Configuring for $cf_cv_system_name) if test ".$system_name" != ".$cf_cv_system_name" ; then AC_MSG_RESULT(Cached system name ($system_name) does not agree with actual ($cf_cv_system_name)) AC_ERROR("Please remove config.cache and try again.") fi ])dnl dnl --------------------------------------------------------------------------- dnl CF_DISABLE_ECHO version: 10 updated: 2003/04/17 22:27:11 dnl --------------- dnl You can always use "make -n" to see the actual options, but it's hard to dnl pick out/analyze warning messages when the compile-line is long. dnl dnl Sets: dnl ECHO_LT - symbol to control if libtool is verbose dnl ECHO_LD - symbol to prefix "cc -o" lines dnl RULE_CC - symbol to put before implicit "cc -c" lines (e.g., .c.o) dnl SHOW_CC - symbol to put before explicit "cc -c" lines dnl ECHO_CC - symbol to put before any "cc" line dnl AC_DEFUN([CF_DISABLE_ECHO],[ AC_MSG_CHECKING(if you want to see long compiling messages) CF_ARG_DISABLE(echo, [ --disable-echo display "compiling" commands], [ ECHO_LT='--silent' ECHO_LD='@echo linking [$]@;' RULE_CC=' @echo compiling [$]<' SHOW_CC=' @echo compiling [$]@' ECHO_CC='@' ],[ ECHO_LT='' ECHO_LD='' RULE_CC='# compiling' SHOW_CC='# compiling' ECHO_CC='' ]) AC_MSG_RESULT($enableval) AC_SUBST(ECHO_LT) AC_SUBST(ECHO_LD) AC_SUBST(RULE_CC) AC_SUBST(SHOW_CC) AC_SUBST(ECHO_CC) ])dnl dnl --------------------------------------------------------------------------- dnl CF_GCC_ATTRIBUTES version: 10 updated: 2005/05/28 13:16:28 dnl ----------------- dnl Test for availability of useful gcc __attribute__ directives to quiet dnl compiler warnings. Though useful, not all are supported -- and contrary dnl to documentation, unrecognized directives cause older compilers to barf. AC_DEFUN([CF_GCC_ATTRIBUTES], [ if test "$GCC" = yes then cat > conftest.i < conftest.$ac_ext <&AC_FD_CC case $cf_attribute in scanf|printf) cat >conftest.h <conftest.h <>confdefs.h fi done else fgrep define conftest.i >>confdefs.h fi rm -rf conftest* fi ])dnl dnl --------------------------------------------------------------------------- dnl CF_GCC_VERSION version: 4 updated: 2005/08/27 09:53:42 dnl -------------- dnl Find version of gcc AC_DEFUN([CF_GCC_VERSION],[ AC_REQUIRE([AC_PROG_CC]) GCC_VERSION=none if test "$GCC" = yes ; then AC_MSG_CHECKING(version of $CC) GCC_VERSION="`${CC} --version| sed -e '2,$d' -e 's/^.*(GCC) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`" test -z "$GCC_VERSION" && GCC_VERSION=unknown AC_MSG_RESULT($GCC_VERSION) fi ])dnl dnl --------------------------------------------------------------------------- dnl CF_GCC_WARNINGS version: 20 updated: 2005/08/06 18:37:29 dnl --------------- dnl Check if the compiler supports useful warning options. There's a few that dnl we don't use, simply because they're too noisy: dnl dnl -Wconversion (useful in older versions of gcc, but not in gcc 2.7.x) dnl -Wredundant-decls (system headers make this too noisy) dnl -Wtraditional (combines too many unrelated messages, only a few useful) dnl -Wwrite-strings (too noisy, but should review occasionally). This dnl is enabled for ncurses using "--enable-const". dnl -pedantic dnl dnl Parameter: dnl $1 is an optional list of gcc warning flags that a particular dnl application might want to use, e.g., "no-unused" for dnl -Wno-unused dnl Special: dnl If $with_ext_const is "yes", add a check for -Wwrite-strings dnl AC_DEFUN([CF_GCC_WARNINGS], [ AC_REQUIRE([CF_GCC_VERSION]) CF_INTEL_COMPILER(GCC,INTEL_COMPILER,CFLAGS) cat > conftest.$ac_ext < #include #include #include #include int main() { char *tmpl = "conftestXXXXXX"; char name[2][80]; int n; int result = 0; int fd; struct stat sb; umask(077); for (n = 0; n < 2; ++n) { strcpy(name[n], tmpl); if ((fd = mkstemp(name[n])) >= 0) { if (!strcmp(name[n], tmpl) || stat(name[n], &sb) != 0 || (sb.st_mode & S_IFMT) != S_IFREG || (sb.st_mode & 077) != 0) { result = 1; } close(fd); } } if (result == 0 && !strcmp(name[0], name[1])) result = 1; exit(result); } ],[cf_cv_func_mkstemp=yes ],[cf_cv_func_mkstemp=no ],[AC_CHECK_FUNC(mkstemp) ]) ]) if test "$cf_cv_func_mkstemp" = yes ; then AC_DEFINE(HAVE_MKSTEMP) fi ])dnl dnl --------------------------------------------------------------------------- dnl CF_POPEN_TEST version: 3 updated: 2005/08/21 13:46:00 dnl ------------- dnl Check to ensure that our prototype for 'popen()' doesn't conflict dnl with the system's (this is a problem on AIX and CLIX). dnl AC_DEFUN([CF_POPEN_TEST], [AC_MSG_CHECKING(for conflicting prototype for popen) AC_CACHE_VAL(ac_cv_td_popen, AC_TRY_LINK([ #include #include "system.h" extern int pclose (FILE *p); extern FILE *popen (const char *c, const char *m);],, ac_cv_td_popen=no, ac_cv_td_popen=yes)) AC_MSG_RESULT($ac_cv_td_popen) if test $ac_cv_td_popen = yes; then AC_DEFINE(HAVE_POPEN_PROTOTYPE) fi ])dnl dnl --------------------------------------------------------------------------- dnl CF_PROG_EXT version: 10 updated: 2004/01/03 19:28:18 dnl ----------- dnl Compute $PROG_EXT, used for non-Unix ports, such as OS/2 EMX. AC_DEFUN([CF_PROG_EXT], [ AC_REQUIRE([CF_CHECK_CACHE]) case $cf_cv_system_name in os2*) CFLAGS="$CFLAGS -Zmt" CPPFLAGS="$CPPFLAGS -D__ST_MT_ERRNO__" CXXFLAGS="$CXXFLAGS -Zmt" # autoconf's macro sets -Zexe and suffix both, which conflict:w LDFLAGS="$LDFLAGS -Zmt -Zcrtdll" ac_cv_exeext=.exe ;; esac AC_EXEEXT AC_OBJEXT PROG_EXT="$EXEEXT" AC_SUBST(PROG_EXT) test -n "$PROG_EXT" && AC_DEFINE_UNQUOTED(PROG_EXT,"$PROG_EXT") ])dnl dnl --------------------------------------------------------------------------- dnl CF_SIZE_T version: 4 updated: 2000/01/22 00:19:54 dnl --------- dnl On both Ultrix and CLIX, I find size_t defined in AC_DEFUN([CF_SIZE_T], [ AC_MSG_CHECKING(for size_t in or ) AC_CACHE_VAL(cf_cv_type_size_t,[ AC_TRY_COMPILE([ #include #ifdef STDC_HEADERS #include #include #endif #include ], [size_t x], [cf_cv_type_size_t=yes], [cf_cv_type_size_t=no]) ]) AC_MSG_RESULT($cf_cv_type_size_t) test $cf_cv_type_size_t = no && AC_DEFINE(size_t, unsigned) ])dnl dnl --------------------------------------------------------------------------- dnl CF_UPPER version: 5 updated: 2001/01/29 23:40:59 dnl -------- dnl Make an uppercase version of a variable dnl $1=uppercase($2) AC_DEFUN([CF_UPPER], [ $1=`echo "$2" | sed y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%` ])dnl dnl --------------------------------------------------------------------------- dnl CF_VERBOSE version: 2 updated: 1997/09/05 10:45:14 dnl ---------- dnl Use AC_VERBOSE w/o the warnings AC_DEFUN([CF_VERBOSE], [test -n "$verbose" && echo " $1" 1>&AC_FD_MSG ])dnl dnl --------------------------------------------------------------------------- dnl CF_WITH_DBMALLOC version: 4 updated: 2004/02/28 05:49:27 dnl ---------------- dnl Configure-option for dbmalloc. The optional parameter is used to override dnl the updating of $LIBS, e.g., to avoid conflict with subsequent tests. AC_DEFUN([CF_WITH_DBMALLOC],[ AC_MSG_CHECKING(if you want to link with dbmalloc for testing) AC_ARG_WITH(dbmalloc, [ --with-dbmalloc use Conor Cahill's dbmalloc library], [with_dbmalloc=$withval], [with_dbmalloc=no]) AC_MSG_RESULT($with_dbmalloc) if test "$with_dbmalloc" = yes ; then AC_CHECK_HEADER(dbmalloc.h, [AC_CHECK_LIB(dbmalloc,[debug_malloc]ifelse($1,,[],[,$1]))]) fi ])dnl dnl --------------------------------------------------------------------------- dnl CF_WITH_DMALLOC version: 4 updated: 2004/02/28 05:49:27 dnl --------------- dnl Configure-option for dmalloc. The optional parameter is used to override dnl the updating of $LIBS, e.g., to avoid conflict with subsequent tests. AC_DEFUN([CF_WITH_DMALLOC],[ AC_MSG_CHECKING(if you want to link with dmalloc for testing) AC_ARG_WITH(dmalloc, [ --with-dmalloc use Gray Watson's dmalloc library], [with_dmalloc=$withval], [with_dmalloc=no]) AC_MSG_RESULT($with_dmalloc) if test "$with_dmalloc" = yes ; then AC_CHECK_HEADER(dmalloc.h, [AC_CHECK_LIB(dmalloc,[dmalloc_debug]ifelse($1,,[],[,$1]))]) fi ])dnl dnl --------------------------------------------------------------------------- dnl CF_WITH_WARNINGS version: 5 updated: 2004/07/23 14:40:34 dnl ---------------- dnl Combine the checks for gcc features into a configure-script option dnl dnl Parameters: dnl $1 - see CF_GCC_WARNINGS AC_DEFUN([CF_WITH_WARNINGS], [ if ( test "$GCC" = yes || test "$GXX" = yes ) then AC_MSG_CHECKING(if you want to check for gcc warnings) AC_ARG_WITH(warnings, [ --with-warnings test: turn on gcc warnings], [cf_opt_with_warnings=$withval], [cf_opt_with_warnings=no]) AC_MSG_RESULT($cf_opt_with_warnings) if test "$cf_opt_with_warnings" != no ; then CF_GCC_ATTRIBUTES CF_GCC_WARNINGS([$1]) fi fi ])dnl dnl --------------------------------------------------------------------------- dnl CF_YACC_ERROR version: 4 updated: 2005/08/21 13:46:00 dnl ------------- dnl Test the supplied version of yacc to see which (if any) of the dnl error-reporting enhancements will work. dnl dnl Also, test the preprocessor to see if it will handle non-C files. dnl (gcc 2.5.8 doesn't). dnl AC_DEFUN([CF_YACC_ERROR], [ rm -f yacctest.y cat >yacctest.y < #include #include "yyerror.c" static void yaccError(s) char *s; { exit(0); } int yylex (void) { return 1; } %} %% dummy : /* empty */ | error '.' ; %% EOF AC_MSG_CHECKING(if $CPP can handle only .c files) $CPP yacctest.y >yacctest.out 2>/dev/null if test ! -s yacctest.out then AC_DEFINE(CPP_DOES_ONLY_C_FILES) AC_MSG_RESULT(yes) else AC_MSG_RESULT(no) fi $YACC yacctest.y rm -f yacctest.* td_incl='#include "y.tab.c"' for COND in BISON_HAS_YYTNAME YACC_HAS_YYTOKS YACC_HAS_YYTOKS_2 YACC_HAS_YYNAME do AC_MSG_CHECKING(for error-reporting with $COND) AC_CACHE_VAL(ac_cv_$COND, AC_TRY_LINK([ #define $COND 1 #define YYDEBUG 1 $td_incl],, eval 'ac_cv_'$COND'=yes', eval 'ac_cv_'$COND'=no')) eval 'td_result=$ac_cv_'$COND AC_MSG_RESULT($td_result) if test $td_result = yes; then AC_DEFINE_UNQUOTED($COND) break fi done rm -f y.tab.c ])dnl