]> ncurses.scripts.mit.edu Git - ncurses.git/blobdiff - aclocal.m4
ncurses 6.2 - patch 20210828
[ncurses.git] / aclocal.m4
index 30127c5ed43ca4476024fa08dba886e917df7e7b..5f0b7a9e899ad10542d656a477a3b61697d5ade5 100644 (file)
@@ -29,7 +29,7 @@ dnl***************************************************************************
 dnl
 dnl Author: Thomas E. Dickey 1995-on
 dnl
-dnl $Id: aclocal.m4,v 1.960 2021/05/01 21:51:55 tom Exp $
+dnl $Id: aclocal.m4,v 1.974 2021/08/28 20:24:23 tom Exp $
 dnl Macros used in NCURSES auto-configuration script.
 dnl
 dnl These macros are maintained separately from NCURSES.  The copyright on
@@ -415,6 +415,21 @@ ifelse([$5],NONE,,[{ test -z "$5" || test "x$5" = xNONE || test "x$4" != "x$5";
 }
 ])dnl
 dnl ---------------------------------------------------------------------------
+dnl CF_APPEND_CFLAGS version: 1 updated: 2021/08/28 15:20:37
+dnl ----------------
+dnl Use CF_ADD_CFLAGS after first checking for potential redefinitions.
+dnl $1 = flags to add
+dnl $2 = if given makes this macro verbose.
+define([CF_APPEND_CFLAGS],
+[
+for cf_add_cflags in $1
+do
+       CF_REMOVE_CFLAGS($cf_add_cflags,CFLAGS,[$2])
+       CF_REMOVE_CFLAGS($cf_add_cflags,CPPFLAGS,[$2])
+done
+CF_ADD_CFLAGS([$1],[$2])
+])dnl
+dnl ---------------------------------------------------------------------------
 dnl CF_APPEND_TEXT version: 1 updated: 2017/02/25 18:58:55
 dnl --------------
 dnl use this macro for appending text without introducing an extra blank at
@@ -1603,7 +1618,7 @@ if test "x$ifelse([$2],,CLANG_COMPILER,[$2])" = "xyes" ; then
 fi
 ])
 dnl ---------------------------------------------------------------------------
-dnl CF_CONST_X_STRING version: 6 updated: 2021/01/01 13:31:04
+dnl CF_CONST_X_STRING version: 7 updated: 2021/06/07 17:39:17
 dnl -----------------
 dnl The X11R4-X11R6 Xt specification uses an ambiguous String type for most
 dnl character-strings.
@@ -1633,7 +1648,7 @@ AC_TRY_COMPILE(
 #include <stdlib.h>
 #include <X11/Intrinsic.h>
 ],
-[String foo = malloc(1); (void)foo],[
+[String foo = malloc(1); free((void*)foo)],[
 
 AC_CACHE_CHECK(for X11/Xt const-feature,cf_cv_const_x_string,[
        AC_TRY_COMPILE(
@@ -2964,7 +2979,7 @@ rm -rf ./conftest*
 AC_SUBST(EXTRA_CFLAGS)
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_GETOPT_HEADER version: 7 updated: 2021/01/01 13:31:04
+dnl CF_GETOPT_HEADER version: 8 updated: 2021/06/19 19:16:16
 dnl ----------------
 dnl Check for getopt's variables which are commonly defined in stdlib.h,
 dnl unistd.h or (nonstandard) in getopt.h
@@ -2977,7 +2992,7 @@ for cf_header in stdio.h stdlib.h unistd.h getopt.h
 do
 AC_TRY_COMPILE([
 #include <$cf_header>],
-[int x = optind; char *y = optarg],
+[int x = optind; char *y = optarg; (void)x; (void)y],
 [cf_cv_getopt_header=$cf_header
  break])
 done
@@ -4302,7 +4317,7 @@ ifelse($1,,,[$1=$LIB_PREFIX])
        AC_SUBST(LIB_PREFIX)
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_LIB_RULES version: 95 updated: 2021/03/20 12:00:25
+dnl CF_LIB_RULES version: 97 updated: 2021/07/17 13:10:54
 dnl ------------
 dnl Append definitions and rules for the given models to the subdirectory
 dnl Makefiles, and the recursion rule for the top-level Makefile.  If the
@@ -4319,6 +4334,7 @@ dnl
 dnl Note: Libs_To_Make is mixed case, since it is not a pure autoconf variable.
 AC_DEFUN([CF_LIB_RULES],
 [AC_REQUIRE([AC_PROG_FGREP])dnl
+AC_REQUIRE([CF_MAKE_PHONY])dnl
 
 cf_prefix=$LIB_PREFIX
 AC_REQUIRE([CF_SUBST_NCURSES_VERSION])
@@ -4639,6 +4655,9 @@ CF_EOF
                                traces=$LIB_TRACING \
                                MODEL=$cf_ITEM \
                                CXX_MODEL=$CXX_MODEL \
+                               LIB_SUFFIX=$LIB_SUFFIX \
+                               USE_LIB_SUFFIX=$USE_LIB_SUFFIX \
+                               make_phony="${cf_cv_make_PHONY:-no}" \
                                model=$cf_subdir \
                                prefix=$cf_prefix \
                                suffix=$cf_suffix \
@@ -4686,6 +4705,21 @@ CF_EOF
        echo '  ( cd '$cf_dir' && ${MAKE} ${TOP_MFLAGS} [$]@ )' >>Makefile
 done
 
+echo >> Makefile
+echo '# generated by CF_LIB_RULES' >> Makefile
+
+if test "x$cf_cv_make_PHONY" = xyes ; then
+       cat >> Makefile <<-CF_EOF
+
+       .PHONY :        libs
+       .PHONY :        lintlib
+       .PHONY :        install.includes
+       .PHONY :        uninstall.includes
+       .PHONY :        install.libs
+       .PHONY :        uninstall.libs
+CF_EOF
+fi
+
 for cf_dir in $SRC_SUBDIRS
 do
        if test ! -d "$srcdir/$cf_dir" ; then
@@ -4704,6 +4738,15 @@ do
        fi
 
        if test -f "$srcdir/$cf_dir/modules" ; then
+
+               if test "x$cf_cv_make_PHONY" = xyes ; then
+                       cat >> Makefile <<-CF_EOF
+
+                       .PHONY :        install.$cf_dir
+                       .PHONY :        uninstall.$cf_dir
+CF_EOF
+               fi
+
                echo >> Makefile
                if test -f "$srcdir/$cf_dir/headers" ; then
 cat >> Makefile <<CF_EOF
@@ -4712,9 +4755,8 @@ uninstall.includes \\
 CF_EOF
                fi
 
-echo 'lint \' >> Makefile
-
 cat >> Makefile <<CF_EOF
+lint \\
 libs \\
 lintlib \\
 install.libs \\
@@ -4736,6 +4778,14 @@ CF_EOF
 fi
 done
 
+if test "x$cf_cv_make_PHONY" = xyes ; then
+       cat >> Makefile <<-CF_EOF
+
+       .PHONY :        install.data
+       .PHONY :        uninstall.data
+CF_EOF
+fi
+
 if test "x$cf_with_db_install" = xyes; then
 cat >> Makefile <<CF_EOF
 
@@ -4752,6 +4802,15 @@ CF_EOF
 fi
 
 if test "x$cf_with_manpages" = xyes; then
+
+if test "x$cf_cv_make_PHONY" = xyes ; then
+       cat >> Makefile <<-CF_EOF
+
+       .PHONY :        install.man
+       .PHONY :        uninstall.man
+CF_EOF
+fi
+
 cat >> Makefile <<CF_EOF
 
 install.man \\
@@ -4884,6 +4943,13 @@ do
 
        if test -f "$srcdir/$cf_dir/modules" ; then
                if test "$cf_dir" != "c++" ; then
+                       if test "x$cf_cv_make_PHONY" = xyes ; then
+                               cat >> $cf_dir/Makefile <<-CF_EOF
+
+                               .PHONY :        depend
+CF_EOF
+                       fi
+
                        cat >>$cf_dir/Makefile <<"CF_EOF"
 depend : ${AUTO_SRC}
        makedepend -- ${CPPFLAGS} -- ${C_SRC}
@@ -5221,6 +5287,89 @@ CF_EOF
 AC_SUBST(cf_cv_makeflags)
 ])dnl
 dnl ---------------------------------------------------------------------------
+dnl CF_MAKE_PHONY version: 3 updated: 2021/01/08 16:08:21
+dnl -------------
+dnl Check if the make-program handles a ".PHONY" target, e.g,. a target which
+dnl acts as a placeholder.
+dnl
+dnl The ".PHONY" feature was proposed in 2011 here
+dnl     https://www.austingroupbugs.net/view.php?id=523
+dnl and is scheduled for release in P1003.1 Issue 8 (late 2022).
+dnl
+dnl This is not supported by SVr4 make (or SunOS 4, 4.3SD, etc), but works with
+dnl a few others (i.e., GNU make and the non-POSIX "BSD" make):
+dnl
+dnl + This is a GNU make feature (since April 1988, but in turn from binutils,
+dnl   date unspecified).
+dnl
+dnl + It was adopted in NetBSD make in June 1995.
+dnl
+dnl + The other BSD make programs are derived from the NetBSD make (and for
+dnl   that reason are not actually different "implementations").
+dnl
+dnl + Some features of NetBSD make were actually adapted from pmake, which
+dnl   began as a modified GNU make starting in 1993.
+dnl
+dnl + Version 3.8 of the dmake program in January 1992 also implemented this
+dnl   GNU make extension, but is less well known than the BSD make.
+AC_DEFUN([CF_MAKE_PHONY],[
+AC_CACHE_CHECK(for \".PHONY\" make-support, cf_cv_make_PHONY,[
+       rm -rf conftest*
+       (
+               mkdir conftest || exit 1
+               cd conftest
+               cat >makefile <<'CF_EOF'
+.PHONY: always
+DATA=0
+always:        always.out
+       @echo "** making [$]@ [$](DATA)"
+once: once.out
+       @echo "** making [$]@ [$](DATA)"
+always.out:
+       @echo "** making [$]@ [$](DATA)"
+       echo [$](DATA) > [$]@
+once.out:
+       @echo "** making [$]@ [$](DATA)"
+       echo [$](DATA) > [$]@
+CF_EOF
+               for cf_data in 1 2 3
+               do
+                       ${MAKE:-make} always DATA=$cf_data
+                       ${MAKE:-make} once   DATA=$cf_data
+                       ${MAKE:-make} -t always once
+                       if test -f always ; then
+                               echo "no (case 1)" > ../conftest.tmp
+                       elif test ! -f always.out ; then
+                               echo "no (case 2)" > ../conftest.tmp
+                       elif test ! -f once.out ; then
+                               echo "no (case 3)" > ../conftest.tmp
+                       elif ! cmp -s always.out once.out ; then
+                               echo "no (case 4)" > ../conftest.tmp
+                               diff always.out once.out
+                       else
+                               cf_check="`cat always.out`"
+                               if test "x$cf_check" != "x$cf_data" ; then
+                                       echo "no (case 5)" > ../conftest.tmp
+                               else
+                                       echo yes > ../conftest.tmp
+                                       rm -f ./*.out
+                                       continue
+                               fi
+                       fi
+                       break
+               done
+       ) >&AC_FD_CC 2>&1
+       cf_cv_make_PHONY="`cat conftest.tmp`"
+       rm -rf conftest*
+])
+MAKE_NO_PHONY="#"
+MAKE_PHONY="#"
+test "x$cf_cv_make_PHONY" = xyes && MAKE_PHONY=
+test "x$cf_cv_make_PHONY" != xyes && MAKE_NO_PHONY=
+AC_SUBST(MAKE_NO_PHONY)
+AC_SUBST(MAKE_PHONY)
+])dnl
+dnl ---------------------------------------------------------------------------
 dnl CF_MAKE_TAGS version: 6 updated: 2010/10/23 15:52:32
 dnl ------------
 dnl Generate tags/TAGS targets for makefiles.  Do not generate TAGS if we have
@@ -5986,19 +6135,29 @@ then
 fi
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_NO_LEAKS_OPTION version: 8 updated: 2021/01/05 20:05:09
+dnl CF_NO_LEAKS_OPTION version: 9 updated: 2021/06/13 19:45:41
 dnl ------------------
 dnl see CF_WITH_NO_LEAKS
+dnl
+dnl $1 = option/name
+dnl $2 = help-text
+dnl $3 = symbol to define if the option is set
+dnl $4 = additional actions to take if the option is set
 AC_DEFUN([CF_NO_LEAKS_OPTION],[
 AC_MSG_CHECKING(if you want to use $1 for testing)
 AC_ARG_WITH($1,
        [$2],
-       [AC_DEFINE_UNQUOTED($3,1,"Define to 1 if you want to use $1 for testing.")ifelse([$4],,[
+       [case "x$withval" in
+       (x|xno) ;;
+       (*)
+               : "${with_cflags:=-g}"
+               : "${enable_leaks:=no}"
+               with_$1=yes
+               AC_DEFINE_UNQUOTED($3,1,"Define to 1 if you want to use $1 for testing.")ifelse([$4],,[
         $4
 ])
-       : "${with_cflags:=-g}"
-       : "${enable_leaks:=no}"
-        with_$1=yes],
+               ;;
+       esac],
        [with_$1=])
 AC_MSG_RESULT(${with_$1:-no})
 
@@ -6699,6 +6858,36 @@ case "$cf_cv_regex_hdrs" in
 esac
 ])dnl
 dnl ---------------------------------------------------------------------------
+dnl CF_REMOVE_CFLAGS version: 1 updated: 2021/08/28 15:20:37
+dnl ----------------
+dnl Remove a given option from CFLAGS/CPPFLAGS
+dnl $1 = option to remove
+dnl $2 = variable to update
+dnl $3 = nonempty to allow verbose message
+define([CF_REMOVE_CFLAGS],
+[
+cf_tmp_cflag=`echo "x$1" | sed -e 's/^.//' -e 's/=.*//'`
+cf_old_cflag="[$]$2"
+
+case "[$]$2" in
+(*$1=*)
+       cf_old_cflag=`echo "x$cf_old_cflag" | sed -e 's/^.//' -e "s%$cf_tmp_cflag=[[^   ]]*%%g"`
+       ;;
+(*$1\ *)
+       cf_old_cflag=`echo "x$cf_old_cflag" | sed -e 's/^.//' -e "s%${cf_tmp_cflag}.%%"`
+       ;;
+(*$1)
+       cf_old_cflag=`echo "x$cf_old_cflag" | sed -e 's/^.//' -e "s%$cf_tmp_cflag%%"`
+       ;;
+esac
+
+if test "[$]$2" != "$cf_old_cflag" ;
+then
+       ifelse([$3],,,[CF_VERBOSE(removing old option $1 from $2)])
+       $2="$cf_new_cflag"
+fi
+])dnl
+dnl ---------------------------------------------------------------------------
 dnl CF_REMOVE_DEFINE version: 3 updated: 2010/01/09 11:05:50
 dnl ----------------
 dnl Remove all -U and -D options that refer to the given symbol from a list
@@ -6883,7 +7072,7 @@ do
 done
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_SHARED_OPTS version: 105 updated: 2021/01/02 17:09:14
+dnl CF_SHARED_OPTS version: 106 updated: 2021/08/07 16:59:57
 dnl --------------
 dnl --------------
 dnl Attempt to determine the appropriate CC/LD options for creating a shared
@@ -7054,6 +7243,10 @@ CF_EOF
                        LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
                fi
                ;;
+       (haiku*)
+               CF_SHARED_SONAME
+               MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
+               ;;
        (hpux[[7-8]]*)
                # HP-UX 8.07 ld lacks "+b" option used for libdir search-list
                if test "$GCC" != yes; then
@@ -8010,7 +8203,7 @@ else
 fi
 ])
 dnl ---------------------------------------------------------------------------
-dnl CF_TRY_XOPEN_SOURCE version: 2 updated: 2018/06/20 20:23:13
+dnl CF_TRY_XOPEN_SOURCE version: 3 updated: 2021/08/28 15:20:37
 dnl -------------------
 dnl If _XOPEN_SOURCE is not defined in the compile environment, check if we
 dnl can define it successfully.
@@ -8045,7 +8238,7 @@ if test "$cf_cv_xopen_source" != no ; then
        CF_REMOVE_DEFINE(CFLAGS,$CFLAGS,_XOPEN_SOURCE)
        CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,_XOPEN_SOURCE)
        cf_temp_xopen_source="-D_XOPEN_SOURCE=$cf_cv_xopen_source"
-       CF_ADD_CFLAGS($cf_temp_xopen_source)
+       CF_APPEND_CFLAGS($cf_temp_xopen_source)
 fi
 ])
 dnl ---------------------------------------------------------------------------
@@ -8141,15 +8334,21 @@ AC_DEFUN([CF_UPPER],
 $1=`echo "$2" | sed y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%`
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_UTF8_LIB version: 8 updated: 2012/10/06 08:57:51
+dnl CF_UTF8_LIB version: 9 updated: 2021/05/19 19:35:25
 dnl -----------
 dnl Check for multibyte support, and if not found, utf8 compatibility library
 AC_DEFUN([CF_UTF8_LIB],
 [
+AC_HAVE_HEADERS(wchar.h)
 AC_CACHE_CHECK(for multibyte character support,cf_cv_utf8_lib,[
        cf_save_LIBS="$LIBS"
        AC_TRY_LINK([
-#include <stdlib.h>],[putwc(0,0);],
+#include <stdlib.h>
+#include <stdio.h>
+#ifdef HAVE_WCHAR_H
+#include <wchar.h>
+#endif
+],[putwc(0,0);],
        [cf_cv_utf8_lib=yes],
        [CF_FIND_LINKAGE([
 #include <libutf8.h>],[putwc(0,0);],utf8,
@@ -8967,7 +9166,7 @@ AC_ARG_WITH($2-path,
        ])
 ])
 dnl ---------------------------------------------------------------------------
-dnl CF_WITH_PCRE2 version: 5 updated: 2021/01/26 18:45:12
+dnl CF_WITH_PCRE2 version: 6 updated: 2021/08/11 20:35:34
 dnl -------------
 dnl Add PCRE2 (Perl-compatible regular expressions v2) to the build if it is
 dnl available and the user requests it.  Assume the application will otherwise
@@ -9009,6 +9208,7 @@ if test "x$with_pcre2" != xno ; then
 
        # either way, check for the library header files
        AC_CHECK_HEADERS(pcre2posix.h pcreposix.h)
+       AC_CHECK_FUNCS(PCRE2regcomp)
 fi
 ])dnl
 dnl ---------------------------------------------------------------------------
@@ -9443,7 +9643,7 @@ fi
 AC_SUBST(no_x11_rgb)
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_XOPEN_SOURCE version: 58 updated: 2021/05/01 17:49:36
+dnl CF_XOPEN_SOURCE version: 59 updated: 2021/08/28 15:20:37
 dnl ---------------
 dnl Try to get _XOPEN_SOURCE defined properly that we can use POSIX functions,
 dnl or adapt to the vendor's definitions to get equivalent functionality,
@@ -9548,7 +9748,7 @@ case "$host_os" in
 esac
 
 if test -n "$cf_xopen_source" ; then
-       CF_ADD_CFLAGS($cf_xopen_source,true)
+       CF_APPEND_CFLAGS($cf_xopen_source,true)
 fi
 
 dnl In anything but the default case, we may have system-specific setting