ncurses 6.2 - patch 20200531
[ncurses.git] / aclocal.m4
index c27cc3685dc93558c846d8601af2ff08bbaa0a6a..09260c46cc5502b04dfdf4de1418330f2554be75 100644 (file)
@@ -29,7 +29,7 @@ dnl***************************************************************************
 dnl
 dnl Author: Thomas E. Dickey 1995-on
 dnl
-dnl $Id: aclocal.m4,v 1.896 2020/02/08 21:01:07 tom Exp $
+dnl $Id: aclocal.m4,v 1.914 2020/05/31 20:50:13 tom Exp $
 dnl Macros used in NCURSES auto-configuration script.
 dnl
 dnl These macros are maintained separately from NCURSES.  The copyright on
@@ -42,7 +42,7 @@ dnl           https://invisible-island.net/autoconf/my-autoconf.html
 dnl
 dnl ---------------------------------------------------------------------------
 dnl ---------------------------------------------------------------------------
-dnl AM_LANGINFO_CODESET version: 4 updated: 2015/04/18 08:56:57
+dnl AM_LANGINFO_CODESET version: 5 updated: 2020/03/10 18:53:47
 dnl -------------------
 dnl Inserted as requested by gettext 0.10.40
 dnl File from /usr/share/aclocal
@@ -55,7 +55,7 @@ AC_DEFUN([AM_LANGINFO_CODESET],
 [
 AC_CACHE_CHECK([for nl_langinfo and CODESET], am_cv_langinfo_codeset,
        [AC_TRY_LINK([#include <langinfo.h>],
-       [char* cs = nl_langinfo(CODESET);],
+       [char* cs = nl_langinfo(CODESET); (void)cs],
        am_cv_langinfo_codeset=yes,
        am_cv_langinfo_codeset=no)
        ])
@@ -158,10 +158,28 @@ AC_DEFUN([CF_ADD_ADAFLAGS],[
        AC_SUBST(ADAFLAGS)
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_ADD_CFLAGS version: 13 updated: 2017/02/25 18:57:40
+dnl CF_ADD_CXXFLAGS version: 1 updated: 2020/04/04 16:16:13
+dnl ---------------
+dnl Copy non-preprocessor flags to $CXXFLAGS, 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 $CPPFLAGS in compiler checks, etc., that are easily
+dnl confused by the quotes (which require backslashes to keep them usable).
+AC_DEFUN([CF_ADD_CXXFLAGS],
+[
+cf_save_CXXFLAGS="$CFLAGS"
+CFLAGS="$CXXFLAGS"
+CF_ADD_CFLAGS($1 ifelse($2,,,[,$2]))
+CXXFLAGS="$CFLAGS"
+CFLAGS="$cf_save_CXXFLAGS"
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_ADD_CFLAGS version: 14 updated: 2020/04/04 16:16:13
 dnl -------------
 dnl Copy non-preprocessor flags to $CFLAGS, preprocessor flags to $CPPFLAGS
-dnl The second parameter if given makes this macro verbose.
+dnl $1 = flags to add
+dnl $2 = 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
@@ -442,7 +460,7 @@ ifelse([$3],,[    :]dnl
 ])dnl
 ])])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_AR_FLAGS version: 6 updated: 2015/10/10 15:25:05
+dnl CF_AR_FLAGS version: 7 updated: 2020/04/04 11:37:29
 dnl -----------
 dnl Check for suitable "ar" (archiver) options for updating an archive.
 dnl
@@ -453,39 +471,55 @@ AC_DEFUN([CF_AR_FLAGS],[
 AC_REQUIRE([CF_PROG_AR])
 
 AC_CACHE_CHECK(for options to update archives, cf_cv_ar_flags,[
-       cf_cv_ar_flags=unknown
-       for cf_ar_flags in -curvU -curv curv -crv crv -cqv cqv -rv rv
-       do
+       case $cf_cv_system_name in
+       (*-msvc*)
+               cf_cv_ar_flags=''
+               cat >mk_static_lib.sh <<-EOF
+               #!$SHELL
+               MSVC_BIN="[$]AR"
+               out="\[$]1"
+               shift
+               exec \[$]MSVC_BIN -out:"\[$]out" \[$]@
+               EOF
+               chmod +x mk_static_lib.sh
+               AR=`pwd`/mk_static_lib.sh
+               ;;
+       (*)
+               cf_cv_ar_flags=unknown
+               for cf_ar_flags in -curvU -curv curv -crv crv -cqv cqv -rv rv
+               do
 
-               # check if $ARFLAGS already contains this choice
-               if test "x$ARFLAGS" != "x" ; then
-                       cf_check_ar_flags=`echo "x$ARFLAGS" | sed -e "s/$cf_ar_flags\$//" -e "s/$cf_ar_flags / /"`
-                       if test "x$ARFLAGS" != "$cf_check_ar_flags" ; then
-                               cf_cv_ar_flags=
-                               break
+                       # check if $ARFLAGS already contains this choice
+                       if test "x$ARFLAGS" != "x" ; then
+                               cf_check_ar_flags=`echo "x$ARFLAGS" | sed -e "s/$cf_ar_flags\$//" -e "s/$cf_ar_flags / /"`
+                               if test "x$ARFLAGS" != "$cf_check_ar_flags" ; then
+                                       cf_cv_ar_flags=
+                                       break
+                               fi
                        fi
-               fi
 
-               rm -f conftest.$ac_cv_objext
-               rm -f conftest.a
+                       rm -f conftest.$ac_cv_objext
+                       rm -f conftest.a
 
-               cat >conftest.$ac_ext <<EOF
+                       cat >conftest.$ac_ext <<EOF
 #line __oline__ "configure"
 int    testdata[[3]] = { 123, 456, 789 };
 EOF
-               if AC_TRY_EVAL(ac_compile) ; then
-                       echo "$AR $ARFLAGS $cf_ar_flags conftest.a conftest.$ac_cv_objext" >&AC_FD_CC
-                       $AR $ARFLAGS $cf_ar_flags conftest.a conftest.$ac_cv_objext 2>&AC_FD_CC 1>/dev/null
-                       if test -f conftest.a ; then
-                               cf_cv_ar_flags=$cf_ar_flags
+                       if AC_TRY_EVAL(ac_compile) ; then
+                               echo "$AR $ARFLAGS $cf_ar_flags conftest.a conftest.$ac_cv_objext" >&AC_FD_CC
+                               $AR $ARFLAGS $cf_ar_flags conftest.a conftest.$ac_cv_objext 2>&AC_FD_CC 1>/dev/null
+                               if test -f conftest.a ; then
+                                       cf_cv_ar_flags=$cf_ar_flags
+                                       break
+                               fi
+                       else
+                               CF_VERBOSE(cannot compile test-program)
                                break
                        fi
-               else
-                       CF_VERBOSE(cannot compile test-program)
-                       break
-               fi
-       done
-       rm -f conftest.a conftest.$ac_ext conftest.$ac_cv_objext
+               done
+               rm -f conftest.a conftest.$ac_ext conftest.$ac_cv_objext
+               ;;
+       esac
 ])
 
 if test -n "$ARFLAGS" ; then
@@ -957,7 +991,7 @@ fi
 CF_CHECK_EXTERN_DATA($1,ifelse([$2],,int,[$2]))
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_CHECK_ERRNO version: 12 updated: 2015/04/18 08:56:57
+dnl CF_CHECK_ERRNO version: 13 updated: 2020/03/10 18:53:47
 dnl --------------
 dnl Check for data that is usually declared in <stdio.h> or <errno.h>, e.g.,
 dnl the 'errno' variable.  Define a DECL_xxx symbol if we must declare it
@@ -975,7 +1009,7 @@ AC_CACHE_CHECK(if external $1 is declared, cf_cv_dcl_$1,[
 #include <stdio.h>
 #include <sys/types.h>
 #include <errno.h> ],
-       ifelse([$2],,int,[$2]) x = (ifelse([$2],,int,[$2])) $1,
+       ifelse([$2],,int,[$2]) x = (ifelse([$2],,int,[$2])) $1; (void)x,
        [cf_cv_dcl_$1=yes],
        [cf_cv_dcl_$1=no])
 ])
@@ -1012,6 +1046,28 @@ if test "$cf_cv_have_$1" = yes ; then
        AC_DEFINE_UNQUOTED($cf_result)
 fi
 
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_CHECK_FVISIBILITY version: 2 updated: 2020/04/04 16:16:13
+dnl --------------------
+dnl Check whether the compiler understands -fvisibility=hidden
+dnl
+dnl $1 = compiler
+dnl $2 = compiler-flags variable name
+dnl $3 = cache variable to set
+AC_DEFUN([CF_CHECK_FVISIBILITY],[
+AC_CACHE_CHECK(if $1 -fvisibility=hidden option works,$3,[
+    cf_save_cflags="[$]$2"
+    $2="[$]$2 -fvisibility=hidden"
+    AC_TRY_LINK([
+__attribute__ ((visibility("default"))) int somefunc() {return 42;}
+       ],[
+       if (somefunc()) return 1;
+],
+    [$3=yes],
+    [$3=no])
+    $2=$cf_save_cflags
+])
 ])dnl
 dnl ---------------------------------------------------------------------------
 dnl CF_CHECK_GETENV version: 1 updated: 2019/06/23 15:28:15
@@ -1140,13 +1196,13 @@ then
 fi
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_CHECK_GNAT_VERSION version: 2 updated: 2019/12/31 08:53:54
+dnl CF_CHECK_GNAT_VERSION version: 3 updated: 2020/05/23 19:39:36
 dnl ---------------------
 AC_DEFUN([CF_CHECK_GNAT_VERSION],
 [
 AC_REQUIRE([CF_GNAT_VERSION])
 case $cf_cv_gnat_version in
-(3.1[[1-9]]*|3.[[2-9]]*|[[4-9]].*|20[[0-9]][[0-9]])
+(3.1[[1-9]]*|3.[[2-9]]*|[[4-9]].*|[[1-9]][[0-9]].[[0-9]]*|20[[0-9]][[0-9]])
        cf_cv_prog_gnat_correct=yes
        ;;
 (*)
@@ -1427,7 +1483,7 @@ cf_save_CFLAGS="$cf_save_CFLAGS -Qunused-arguments"
 fi
 ])
 dnl ---------------------------------------------------------------------------
-dnl CF_CONST_X_STRING version: 3 updated: 2020/01/11 18:39:22
+dnl CF_CONST_X_STRING version: 4 updated: 2020/03/10 18:53:47
 dnl -----------------
 dnl The X11R4-X11R6 Xt specification uses an ambiguous String type for most
 dnl character-strings.
@@ -1457,7 +1513,7 @@ AC_TRY_COMPILE(
 #include <stdlib.h>
 #include <X11/Intrinsic.h>
 ],
-[String foo = malloc(1)],[
+[String foo = malloc(1); (void)foo],[
 
 AC_CACHE_CHECK(for X11/Xt const-feature,cf_cv_const_x_string,[
        AC_TRY_COMPILE(
@@ -2476,7 +2532,7 @@ esac
 
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_GCC_ATTRIBUTES version: 17 updated: 2015/04/12 15:39:00
+dnl CF_GCC_ATTRIBUTES version: 18 updated: 2020/03/10 18:53:47
 dnl -----------------
 dnl Test for availability of useful gcc __attribute__ directives to quiet
 dnl compiler warnings.  Though useful, not all are supported -- and contrary
@@ -2520,7 +2576,7 @@ cat > conftest.$ac_ext <<EOF
 extern void wow(char *,...) GCC_SCANFLIKE(1,2);
 extern void oops(char *,...) GCC_PRINTFLIKE(1,2) GCC_NORETURN;
 extern void foo(void) GCC_NORETURN;
-int main(int argc GCC_UNUSED, char *argv[[]] GCC_UNUSED) { return 0; }
+int main(int argc GCC_UNUSED, char *argv[[]] GCC_UNUSED) { (void)argc; (void)argv; return 0; }
 EOF
        cf_printf_attribute=no
        cf_scanf_attribute=no
@@ -2755,7 +2811,7 @@ test "$cf_cv_gnatprep_opt_t" = yes && GNATPREP_OPTS="-T $GNATPREP_OPTS"
 AC_SUBST(GNATPREP_OPTS)
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_GNAT_GENERICS version: 4 updated: 2019/12/31 08:53:54
+dnl CF_GNAT_GENERICS version: 5 updated: 2020/05/31 16:49:35
 dnl ----------------
 AC_DEFUN([CF_GNAT_GENERICS],
 [
@@ -2763,7 +2819,7 @@ AC_REQUIRE([CF_GNAT_VERSION])
 
 AC_MSG_CHECKING(if GNAT supports generics)
 case $cf_cv_gnat_version in
-(3.[[1-9]]*|[[4-9]].*)
+(3.[[1-9]]*|[[4-9]].*|[[1-9]][[0-9]].*)
        cf_gnat_generics=yes
        ;;
 (*)
@@ -3675,7 +3731,7 @@ AC_MSG_RESULT($cf_cv_have_isascii)
 test "$cf_cv_have_isascii" = yes && AC_DEFINE(HAVE_ISASCII,1,[Define to 1 if we have isascii()])
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_LARGEFILE version: 11 updated: 2018/06/20 20:23:13
+dnl CF_LARGEFILE version: 12 updated: 2020/03/19 20:23:48
 dnl ------------
 dnl Add checks for large file support.
 AC_DEFUN([CF_LARGEFILE],[
@@ -3715,6 +3771,7 @@ ifdef([AC_FUNC_FSEEKO],[
                struct dirent64 *x = readdir((DIR *)0);
                struct dirent *y = readdir((DIR *)0);
                int z = x - y;
+               (void)z;
                ],
                [cf_cv_struct_dirent64=yes],
                [cf_cv_struct_dirent64=no])
@@ -3994,7 +4051,7 @@ fi
 test -z "$cf_cv_libtool_version" && unset cf_cv_libtool_version
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_LIB_PREFIX version: 12 updated: 2015/10/17 19:03:33
+dnl CF_LIB_PREFIX version: 13 updated: 2020/04/04 10:11:47
 dnl -------------
 dnl Compute the library-prefix for the given host system
 dnl $1 = variable to set
@@ -4008,6 +4065,9 @@ define([CF_LIB_PREFIX],
                        LIB_PREFIX=''
                fi
                ;;
+       (*-msvc*)
+               LIB_PREFIX=''
+               ;;
        (*)     LIB_PREFIX='lib'
                ;;
        esac
@@ -4015,7 +4075,7 @@ ifelse($1,,,[$1=$LIB_PREFIX])
        AC_SUBST(LIB_PREFIX)
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_LIB_RULES version: 88 updated: 2018/08/18 12:19:21
+dnl CF_LIB_RULES version: 90 updated: 2020/04/04 10:11:47
 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
@@ -4036,7 +4096,7 @@ cf_prefix=$LIB_PREFIX
 AC_REQUIRE([CF_SUBST_NCURSES_VERSION])
 
 case $cf_cv_shlib_version in
-(cygdll|msysdll|mingw)
+(cygdll|msysdll|mingw|msvcdll)
        TINFO_NAME=$TINFO_ARG_SUFFIX
        TINFO_SUFFIX=.dll
        ;;
@@ -4103,8 +4163,13 @@ CF_EOF
                for cf_item in $cf_LIST_MODELS
                do
                        CF_LIB_SUFFIX($cf_item,cf_suffix,cf_depsuf)
-                       cf_libname=$cf_dir
-                       test "$cf_dir" = c++ && cf_libname=ncurses++
+                       if test "$cf_dir" = "c++"
+                       then
+                               CF_MAP_LIB_BASENAME(cf_libname,cxx)
+                       else
+                               CF_MAP_LIB_BASENAME(cf_libname,$cf_dir)
+                       fi
+                       test -z "$cf_libname" && cf_libname="$cf_dir"
                        if test $cf_item = shared ; then
                                if test -n "${LIB_SUFFIX}"
                                then
@@ -4159,6 +4224,10 @@ CF_EOF
                                        cf_cygsuf=`echo "$cf_suffix" | sed -e 's/\.dll/\${ABI_VERSION}.dll/'`
                                        cf_add_lib="../lib/lib${cf_libname}${cf_cygsuf}"
                                        ;;
+                               (msvcdll)
+                                       cf_cygsuf=`echo "$cf_suffix" | sed -e 's/\.dll/\${ABI_VERSION}.dll/'`
+                                       cf_add_lib="../lib/${cf_libname}${cf_cygsuf}"
+                                       ;;
                                (*)
                                        cf_add_lib=
                                        ;;
@@ -4254,7 +4323,7 @@ CF_EOF
                        CXX_MODEL=$cf_ITEM
                        if test "$CXX_MODEL" = SHARED; then
                                case $cf_cv_shlib_version in
-                               (cygdll|msysdll|mingw)
+                               (cygdll|msysdll|mingw|msvcdll)
                                        test "x$with_shared_cxx" = xno && CF_VERBOSE(overriding CXX_MODEL to SHARED)
                                        with_shared_cxx=yes
                                        ;;
@@ -4282,8 +4351,10 @@ CF_EOF
                                        ;;
                                esac
                        elif test $cf_dir = c++ ; then
-                               cf_libname=ncurses++$USE_LIB_SUFFIX
+                               CF_MAP_LIB_BASENAME(cf_libname,cxx)
+                               cf_libname=${cf_libname}$USE_LIB_SUFFIX
                        else
+                               CF_MAP_LIB_BASENAME(cf_libname,$cf_dir)
                                cf_libname=${cf_libname}$USE_LIB_SUFFIX
                        fi
                        if test -n "${USE_ARG_SUFFIX}" ; then
@@ -4634,7 +4705,7 @@ fi
 ])
 ])
 dnl ---------------------------------------------------------------------------
-dnl CF_LIB_SUFFIX version: 25 updated: 2015/04/17 21:13:04
+dnl CF_LIB_SUFFIX version: 26 updated: 2020/04/04 10:11:47
 dnl -------------
 dnl Compute the library file-suffix from the given model name
 dnl $1 = model name
@@ -4649,11 +4720,25 @@ AC_DEFUN([CF_LIB_SUFFIX],
                $3=[$]$2
                ;;
        (Xdebug)
-               $2='_g.a'
+               case $cf_cv_system_name in
+               (*-msvc*)
+                       $2='_g.lib'
+                       ;;
+               (*)
+                       $2='_g.a'
+                       ;;
+               esac
                $3=[$]$2
                ;;
        (Xprofile)
-               $2='_p.a'
+               case $cf_cv_system_name in
+               (*-msvc*)
+                       $2='_p.lib'
+                       ;;
+               (*)
+                       $2='_p.a'
+                       ;;
+               esac
                $3=[$]$2
                ;;
        (Xshared)
@@ -4662,6 +4747,10 @@ AC_DEFUN([CF_LIB_SUFFIX],
                        $2='.so'
                        $3=[$]$2
                        ;;
+               (*-msvc*)
+                       $2='.dll'
+                       $3='.dll.lib'
+                       ;;
                (cygwin*|msys*|mingw*)
                        $2='.dll'
                        $3='.dll.a'
@@ -4689,7 +4778,14 @@ AC_DEFUN([CF_LIB_SUFFIX],
                esac
                ;;
        (*)
-               $2='.a'
+               case $target in
+               (*-msvc*)
+                       $2='.lib'
+                       ;;
+               (*)
+                       $2='.a'
+                       ;;
+               esac
                $3=[$]$2
                ;;
        esac
@@ -5479,6 +5575,17 @@ exit 0
 CF_EOF
 chmod 755 $cf_edit_man
 
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_MAP_LIB_BASENAME version: 1 updated: 2020/03/07 20:05:14
+dnl -------------------
+dnl Convert a default-libname to the actual one used via CF_WITH_LIB_BASENAME.
+dnl
+dnl $1 = variable to set
+dnl $2 = default-libname
+AC_DEFUN([CF_MAP_LIB_BASENAME],[
+CF_UPPER(cf_map_lib_basename,$2)
+eval $1=\$${cf_map_lib_basename}_NAME
 ])dnl
 dnl ---------------------------------------------------------------------------
 dnl CF_MATH_LIB version: 9 updated: 2017/01/21 11:06:25
@@ -6270,7 +6377,7 @@ AC_MSG_RESULT($cf_prog_ln_sf)
 test "$cf_prog_ln_sf" = yes && LN_S="$LN_S -f"
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_REGEX version: 12 updated: 2015/04/18 08:56:57
+dnl CF_REGEX version: 13 updated: 2020/03/10 18:53:47
 dnl --------
 dnl Attempt to determine if we've got one of the flavors of regular-expression
 dnl code that we can support.
@@ -6317,6 +6424,8 @@ case $cf_regex_func in
                AC_TRY_LINK([#include <$cf_regex_hdr>],[
                        char *p = compile("", "", "", 0);
                        int x = step("", "");
+                       (void)p;
+                       (void)x;
                ],[
                        cf_cv_regex_hdrs=$cf_regex_hdr
                        break
@@ -6328,9 +6437,11 @@ case $cf_regex_func in
        do
                AC_TRY_LINK([#include <sys/types.h>
 #include <$cf_regex_hdr>],[
-                       regex_t *p;
+                       regex_t *p = 0;
                        int x = regcomp(p, "", 0);
                        int y = regexec(p, "", 0, 0, 0);
+                       (void)x;
+                       (void)y;
                        regfree(p);
                ],[
                        cf_cv_regex_hdrs=$cf_regex_hdr
@@ -6533,7 +6644,7 @@ do
 done
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_SHARED_OPTS version: 93 updated: 2018/08/18 16:36:35
+dnl CF_SHARED_OPTS version: 96 updated: 2020/05/23 19:39:36
 dnl --------------
 dnl --------------
 dnl Attempt to determine the appropriate CC/LD options for creating a shared
@@ -6759,6 +6870,108 @@ CF_EOF
                CF_SHARED_SONAME
                MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
                ;;
+       (mingw*msvc*)
+               cf_cv_shlib_version=msvcdll
+               cf_cv_shlib_version_infix=msvcdll
+               shlibdir=$bindir
+               MAKE_DLLS=
+               if test "$DFT_LWR_MODEL" = "shared" ; then
+                       LOCAL_LDFLAGS="-link -dll"
+                       LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
+                       EXTRA_LDFLAGS="-link -dll $EXTRA_LDFLAGS"
+               fi
+               CC_SHARED_OPTS=
+               MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh [$]@ ${LD} [$]{CFLAGS}'
+               RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.lib"
+               cat >mk_shared_lib.sh <<-CF_EOF
+               #!$SHELL
+               SHARED_LIB=\[$]1
+               IMPORT_LIB=\`echo "\[$]1" | sed -e 's/[[0-9]]*\.dll[$]/.dll.lib/'\`
+               shift
+               my_ld=\[$]1
+               shift
+               cat <<-EOF
+               Linking shared library
+               ** SHARED LIB \$SHARED_LIB
+               ** IMPORT_LIB \$IMPORT_LIB
+EOF
+               args=\$(echo \[$]* | sed -E "s#-l(\w*)#\1.dll.lib#g" | sed -E "s#-L(\w*)#-LIBPATH:\1#g")
+               exec \$my_ld -DLL -IMPLIB:"\${IMPORT_LIB}" -OUT:"\${SHARED_LIB}" ${LDFLAGS} \$args
+               mv "\${IMPORT_LIB}" "\${IMPORT_LIB}"
+CF_EOF
+               chmod +x mk_shared_lib.sh
+               cat >mk_prog.sh <<-CF_EOF
+               #!$SHELL
+               shift
+               # Ignore first argument (compiler) and use LD (link.exe) unconditionally
+               LD="[$]LD"
+               clopts=()
+               ldopts=()
+               libs=()
+               isdll=0
+               while test \[$]# -gt 0; do
+                       case "\[$]1" in
+                               -link)
+                                       # ignore -link argument
+                                       ;;
+                               -dll)
+                                       isdll=1
+                                       ;;
+                               -W* | -w*)
+                                       # ignore warnings
+                                       ;;
+                               -D*)
+                                       clopts+=("\[$]1")
+                                       ;;
+                               -I*)
+                                       clopts+=("\[$]1")
+                                       ;;
+                               -l*)
+                                       libs+=("\`echo \"\[$]1\" | sed \"s/^-l//\"\`")
+                                       ;;
+                               -L*)
+                                       ldopts+=("\`echo \"\[$]1\" | sed \"s/^-L/-LIBPATH:/\"\`")
+                                       ;;
+                               *.obj | *.o)
+                                       ldopts+=("\[$]1")
+                                       ;;
+                               -Wl,*)
+                                       for linkarg in \`echo '\[$]1' | sed -e 's/-Wl,//' -e 's/,/ /'\`; do
+                                               ldopts+=("\[$]{linkarg}")
+                                       done
+                                       ;;
+                               *.lib)
+                                       ldopts+=("\[$]1")
+                                       ;;
+                               -o)
+                                       shift
+                                       ldopts+=("-out:\[$]1")
+                                       ;;
+                               *)
+                                       clopts+=("\[$]1")
+                                       ldopts+=("\[$]1")
+                                       ;;
+                       esac
+                       shift
+               done
+               if [[ "\$isdll" -ne 0 ]]; then
+                       for lib in \[$]{libs[[*]]}; do
+                               ldopts+=("\[$]lib.dll.lib")
+                       done
+               else
+                       for lib in \[$]{libs[[*]]}; do
+                               ldopts+=("\[$]lib.lib")
+                       done
+               fi
+               cat <<-EOF
+               Creating program
+               ** ld options:   "\[$]{ldopts[[@]]}"
+EOF
+               exec \[$]LD \[$]{ldopts[[@]]}
+CF_EOF
+               chmod +x mk_prog.sh
+               LINK_PROGS="$SHELL ${rel_builddir}/mk_prog.sh"
+               ;;
        (mingw*)
                cf_cv_shlib_version=mingw
                cf_cv_shlib_version_infix=mingw
@@ -6994,7 +7207,7 @@ define([CF_SHARED_SONAME],
        fi
 ])
 dnl ---------------------------------------------------------------------------
-dnl CF_SIGWINCH version: 2 updated: 2019/03/23 19:54:44
+dnl CF_SIGWINCH version: 3 updated: 2020/03/10 18:53:47
 dnl -----------
 dnl Use this macro after CF_XOPEN_SOURCE, but do not require it (not all
 dnl programs need this test).
@@ -7009,7 +7222,7 @@ AC_CACHE_CHECK(if SIGWINCH is defined,cf_cv_define_sigwinch,[
        AC_TRY_COMPILE([
 #include <sys/types.h>
 #include <sys/signal.h>
-],[int x = SIGWINCH],
+],[int x = SIGWINCH; (void)x],
        [cf_cv_define_sigwinch=yes],
        [AC_TRY_COMPILE([
 #undef _XOPEN_SOURCE
@@ -7017,7 +7230,7 @@ AC_CACHE_CHECK(if SIGWINCH is defined,cf_cv_define_sigwinch,[
 #undef _POSIX_C_SOURCE
 #include <sys/types.h>
 #include <sys/signal.h>
-],[int x = SIGWINCH],
+],[int x = SIGWINCH; (void)x],
        [cf_cv_define_sigwinch=maybe],
        [cf_cv_define_sigwinch=no])
 ])
@@ -7039,7 +7252,7 @@ do
 #if SIGWINCH != $cf_sigwinch
 make an error
 #endif
-int x = SIGWINCH],
+int x = SIGWINCH; (void)x],
        [cf_cv_fixup_sigwinch=$cf_sigwinch
         break])
 
@@ -7053,7 +7266,7 @@ done
 fi
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_SIG_ATOMIC_T version: 4 updated: 2020/01/18 12:30:44
+dnl CF_SIG_ATOMIC_T version: 5 updated: 2020/03/10 18:53:47
 dnl ---------------
 dnl signal handler, but there are some gcc dependencies in that recommendation.
 dnl Try anyway.
@@ -7075,6 +7288,7 @@ extern $cf_type x;
 $cf_type x;
 static void handler(int sig)
 {
+       (void)sig;
        x = 5;
 }],
                [signal(SIGINT, handler);
@@ -7088,7 +7302,7 @@ AC_MSG_RESULT($cf_cv_sig_atomic_t)
 test "$cf_cv_sig_atomic_t" != no && AC_DEFINE_UNQUOTED(SIG_ATOMIC_T, $cf_cv_sig_atomic_t,[Define to signal global datatype])
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_SIZECHANGE version: 14 updated: 2018/06/20 20:23:13
+dnl CF_SIZECHANGE version: 16 updated: 2020/03/19 20:46:13
 dnl -------------
 dnl Check for definitions & structures needed for window size-changing
 dnl
@@ -7131,13 +7345,17 @@ do
 ],[
 #ifdef TIOCGSIZE
        struct ttysize win;     /* SunOS 3.0... */
-       int y = win.ts_lines;
-       int x = win.ts_cols;
+       int y = win.ts_lines = 2;
+       int x = win.ts_cols = 1;
+       (void)y;
+       (void)x;
 #else
 #ifdef TIOCGWINSZ
        struct winsize win;     /* everything else */
-       int y = win.ws_row;
-       int x = win.ws_col;
+       int y = win.ws_row = 2;
+       int x = win.ws_col = 1;
+       (void)y;
+       (void)x;
 #else
        no TIOCGSIZE or TIOCGWINSZ
 #endif /* TIOCGWINSZ */
@@ -7164,7 +7382,7 @@ if test "$cf_cv_sizechange" != no ; then
 fi
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_SRC_MODULES version: 31 updated: 2019/09/21 18:08:42
+dnl CF_SRC_MODULES version: 32 updated: 2020/03/07 20:05:14
 dnl --------------
 dnl For each parameter, test if the source-directory exists, and if it contains
 dnl a 'modules' file.  If so, add to the list $cf_cv_src_modules which we'll
@@ -7218,14 +7436,15 @@ do
                        CF_UPPER(cf_have_include,$cf_dir)
                        AC_DEFINE_UNQUOTED(HAVE_${cf_have_include}_H)
                        AC_DEFINE_UNQUOTED(HAVE_LIB${cf_have_include})
-                       TEST_DEPS="${LIB_DIR}/${LIB_PREFIX}${cf_dir}${DFT_DEP_SUFFIX} $TEST_DEPS"
-                       TEST_DEP2="${LIB_2ND}/${LIB_PREFIX}${cf_dir}${DFT_DEP_SUFFIX} $TEST_DEP2"
+                       CF_MAP_LIB_BASENAME(TEST_ROOT,$cf_dir)
+                       TEST_DEPS="${LIB_DIR}/${LIB_PREFIX}${TEST_ROOT}${DFT_DEP_SUFFIX} $TEST_DEPS"
+                       TEST_DEP2="${LIB_2ND}/${LIB_PREFIX}${TEST_ROOT}${DFT_DEP_SUFFIX} $TEST_DEP2"
                        if test "$DFT_LWR_MODEL" = "libtool"; then
                                TEST_ARGS="${TEST_DEPS}"
                                TEST_ARG2="${TEST_DEP2}"
                        else
-                               TEST_ARGS="-l${cf_dir}${USE_ARG_SUFFIX} $TEST_ARGS"
-                               TEST_ARG2="-l${cf_dir}${USE_ARG_SUFFIX} $TEST_ARG2"
+                               TEST_ARGS="-l${TEST_ROOT}${USE_ARG_SUFFIX} $TEST_ARGS"
+                               TEST_ARG2="-l${TEST_ROOT}${USE_ARG_SUFFIX} $TEST_ARG2"
                        fi
                        PC_MODULES_TO_MAKE="${PC_MODULES_TO_MAKE} ${cf_dir}${USE_ARG_SUFFIX}"
                fi
@@ -7375,7 +7594,7 @@ AC_MSG_RESULT($sigact_bad)
 fi
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_STRUCT_TERMIOS version: 9 updated: 2018/06/08 21:57:23
+dnl CF_STRUCT_TERMIOS version: 11 updated: 2020/03/19 20:46:13
 dnl -----------------
 dnl Some machines require _POSIX_SOURCE to completely define struct termios.
 AC_DEFUN([CF_STRUCT_TERMIOS],[
@@ -7398,12 +7617,12 @@ if test "$ac_cv_header_termios_h" = yes ; then
        if test "$termios_bad" = maybe ; then
        AC_MSG_CHECKING(whether termios.h needs _POSIX_SOURCE)
        AC_TRY_COMPILE([#include <termios.h>],
-               [struct termios foo; int x = foo.c_iflag],
+               [struct termios foo; int x = foo.c_iflag = 1; (void)x],
                termios_bad=no, [
                AC_TRY_COMPILE([
 #define _POSIX_SOURCE
 #include <termios.h>],
-                       [struct termios foo; int x = foo.c_iflag],
+                       [struct termios foo; int x = foo.c_iflag = 2; (void)x],
                        termios_bad=unknown,
                        termios_bad=yes AC_DEFINE(_POSIX_SOURCE,1,[Define to 1 if we must define _POSIX_SOURCE]))
                        ])
@@ -8343,6 +8562,35 @@ esac
 AC_SUBST(LIBTOOL_OPTS)
 ])dnl
 dnl ---------------------------------------------------------------------------
+dnl CF_WITH_LIB_BASENAME version: 1 updated: 2020/03/07 20:05:14
+dnl --------------------
+dnl Allow for overriding the basename of a library, i.e., the part to which
+dnl prefixes/suffixes are attached.
+dnl
+dnl $1 = variable to set
+dnl $2 = option name
+dnl $3 = default basename for library, if omitted use $2
+AC_DEFUN([CF_WITH_LIB_BASENAME],
+[
+AC_MSG_CHECKING(for desired basename for $2 library)
+AC_ARG_WITH($2-libname,
+       [  --with-$2-libname=XXX override ifelse($3,,$2,$3) basename of library],
+       [with_lib_basename=$withval],
+       [with_lib_basename=ifelse($3,,$2,$3)])
+$1="$with_lib_basename"
+
+case "x[$]$1" in
+(x|xno|xnone|xyes)
+       $1=ifelse($3,,$2,$3)
+       ;;
+(*)
+       ;;
+esac
+
+AC_MSG_RESULT([$]$1)
+AC_SUBST($1)
+])dnl
+dnl ---------------------------------------------------------------------------
 dnl CF_WITH_LIB_PREFIX version: 1 updated: 2012/01/21 19:28:10
 dnl ------------------
 dnl Allow the library-prefix to be overridden.  OS/2 EMX originally had no
@@ -8468,7 +8716,7 @@ AC_ARG_WITH($2-path,
        ])
 ])
 dnl ---------------------------------------------------------------------------
-dnl CF_WITH_PCRE2 version: 2 updated: 2018/07/14 16:47:56
+dnl CF_WITH_PCRE2 version: 3 updated: 2020/02/29 16:09:19
 dnl -------------
 dnl Add PCRE2 (Perl-compatible regular expressions v2) to the build if it is
 dnl available and the user requests it.  Assume the application will otherwise
@@ -8506,7 +8754,7 @@ if test "x$with_pcre2" != xno ; then
        esac
 
        # either way, check for the library header files
-       AC_CHECK_HEADERS(pcre2-posix.h pcreposix.h)
+       AC_CHECK_HEADERS(pcre2posix.h pcreposix.h)
 fi
 ])dnl
 dnl ---------------------------------------------------------------------------