]> ncurses.scripts.mit.edu Git - ncurses.git/blobdiff - aclocal.m4
ncurses 6.1 - patch 20181013
[ncurses.git] / aclocal.m4
index d68cf7e6074ac782abcfa0c19af2972ed05548eb..83913491b8a020f738ef86a65aa996113517184d 100644 (file)
@@ -28,7 +28,7 @@ dnl***************************************************************************
 dnl
 dnl Author: Thomas E. Dickey 1995-on
 dnl
-dnl $Id: aclocal.m4,v 1.838 2018/06/16 23:07:10 tom Exp $
+dnl $Id: aclocal.m4,v 1.850 2018/10/13 19:43:04 tom Exp $
 dnl Macros used in NCURSES auto-configuration script.
 dnl
 dnl These macros are maintained separately from NCURSES.  The copyright on
@@ -243,7 +243,7 @@ AC_SUBST(EXTRA_CPPFLAGS)
 
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_ADD_INCDIR version: 14 updated: 2015/05/25 20:53:04
+dnl CF_ADD_INCDIR version: 15 updated: 2018/06/20 20:23:13
 dnl -------------
 dnl Add an include-directory to $CPPFLAGS.  Don't add /usr/include, since it's
 dnl redundant.  We don't normally need to add -I/usr/local/include for gcc,
@@ -274,7 +274,7 @@ if test -n "$1" ; then
                        if test "$GCC" = yes
                        then
                          cf_save_CPPFLAGS=$CPPFLAGS
-                         CPPFLAGS="$CPPFLAGS -I$cf_add_incdir"
+                         CF_APPEND_TEXT(CPPFLAGS,-I$cf_add_incdir)
                          AC_TRY_COMPILE([#include <stdio.h>],
                                  [printf("Hello")],
                                  [],
@@ -727,7 +727,7 @@ AC_SUBST(BUILD_EXEEXT)
 AC_SUBST(BUILD_OBJEXT)
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_CC_ENV_FLAGS version: 8 updated: 2017/09/23 08:50:24
+dnl CF_CC_ENV_FLAGS version: 9 updated: 2018/07/29 18:03:26
 dnl ---------------
 dnl Check for user's environment-breakage by stuffing CFLAGS/CPPFLAGS content
 dnl into CC.  This will not help with broken scripts that wrap the compiler
@@ -744,11 +744,28 @@ AC_DEFUN([CF_CC_ENV_FLAGS],
 # This should have been defined by AC_PROG_CC
 : ${CC:=cc}
 
+AC_MSG_CHECKING(\$CFLAGS variable)
+case "x$CFLAGS" in
+(*-[[IUD]]*)
+       AC_MSG_RESULT(broken)
+       AC_MSG_WARN(your environment uses the CFLAGS variable to hold CPPFLAGS options)
+       cf_flags="$CFLAGS"
+       CFLAGS=
+       for cf_arg in $cf_flags
+       do
+               CF_ADD_CFLAGS($cf_arg)
+       done
+       ;;
+(*)
+       AC_MSG_RESULT(ok)
+       ;;
+esac
+
 AC_MSG_CHECKING(\$CC variable)
 case "$CC" in
 (*[[\ \        ]]-*)
        AC_MSG_RESULT(broken)
-       AC_MSG_WARN(your environment misuses the CC variable to hold CFLAGS/CPPFLAGS options)
+       AC_MSG_WARN(your environment uses the CC variable to hold CFLAGS/CPPFLAGS options)
        # humor him...
        cf_prog=`echo "$CC" | sed -e 's/        / /g' -e 's/[[ ]]* / /g' -e 's/[[ ]]*[[ ]]-[[^ ]].*//'`
        cf_flags=`echo "$CC" | ${AWK:-awk} -v prog="$cf_prog" '{ printf("%s", [substr]([$]0,1+length(prog))); }'`
@@ -1410,11 +1427,6 @@ fi
 AC_SUBST($1)
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_DIRNAME version: 4 updated: 2002/12/21 19:25:52
-dnl ----------
-dnl "dirname" is not portable, so we fake it with a shell script.
-AC_DEFUN([CF_DIRNAME],[$1=`echo $2 | sed -e 's%/[[^/]]*$%%'`])dnl
-dnl ---------------------------------------------------------------------------
 dnl CF_DIRS_TO_MAKE version: 3 updated: 2002/02/23 20:38:31
 dnl ---------------
 AC_DEFUN([CF_DIRS_TO_MAKE],
@@ -1436,6 +1448,11 @@ done
 AC_SUBST(DIRS_TO_MAKE)
 ])dnl
 dnl ---------------------------------------------------------------------------
+dnl CF_DIRNAME version: 4 updated: 2002/12/21 19:25:52
+dnl ----------
+dnl "dirname" is not portable, so we fake it with a shell script.
+AC_DEFUN([CF_DIRNAME],[$1=`echo $2 | sed -e 's%/[[^/]]*$%%'`])dnl
+dnl ---------------------------------------------------------------------------
 dnl CF_DISABLE_ECHO version: 13 updated: 2015/04/18 08:56:57
 dnl ---------------
 dnl You can always use "make -n" to see the actual options, but it's hard to
@@ -1703,7 +1720,7 @@ AC_MSG_RESULT($cf_result)
 CXXFLAGS="$cf_save_CXXFLAGS"
 ])
 dnl ---------------------------------------------------------------------------
-dnl CF_FIND_LINKAGE version: 20 updated: 2015/04/18 08:56:57
+dnl CF_FIND_LINKAGE version: 21 updated: 2018/06/20 20:23:13
 dnl ---------------
 dnl Find a library (specifically the linkage used in the code fragment),
 dnl searching for it if it is not already in the library path.
@@ -1762,7 +1779,8 @@ AC_TRY_LINK([$1],[$2],[
        do
                if test -d $cf_cv_header_path_$3 ; then
                        CF_VERBOSE(... testing $cf_cv_header_path_$3)
-                       CPPFLAGS="$cf_save_CPPFLAGS -I$cf_cv_header_path_$3"
+                       CPPFLAGS="$cf_save_CPPFLAGS"
+                       CF_APPEND_TEXT(CPPFLAGS,-I$cf_cv_header_path_$3)
                        AC_TRY_COMPILE([$1],[$2],[
                                CF_VERBOSE(... found $3 headers in $cf_cv_header_path_$3)
                                cf_cv_find_linkage_$3=maybe
@@ -2282,7 +2300,7 @@ if test "$GCC" = yes ; then
 fi
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_GCC_WARNINGS version: 32 updated: 2015/04/12 15:39:00
+dnl CF_GCC_WARNINGS version: 33 updated: 2018/06/20 20:23:13
 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:
@@ -2376,7 +2394,7 @@ then
                        test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
                        case $cf_opt in
                        (Wcast-qual)
-                               CPPFLAGS="$CPPFLAGS -DXTSTRINGDEFINES"
+                               CF_APPEND_TEXT(CPPFLAGS,-DXTSTRINGDEFINES)
                                ;;
                        (Winline)
                                case $GCC_VERSION in
@@ -2702,7 +2720,7 @@ case $cf_gnat_version in
 esac
 ])
 dnl ---------------------------------------------------------------------------
-dnl CF_GNU_SOURCE version: 8 updated: 2018/06/16 19:05:13
+dnl CF_GNU_SOURCE version: 9 updated: 2018/06/20 20:23:13
 dnl -------------
 dnl Check if we must define _GNU_SOURCE to get a reasonable value for
 dnl _XOPEN_SOURCE, upon which many POSIX definitions depend.  This is a defect
@@ -2734,7 +2752,7 @@ if test x$cf_cv_gnu_library = xyes; then
        # was changed to help a little...
        AC_CACHE_CHECK(if _DEFAULT_SOURCE can be used as a basis,cf_cv_gnu_library_219,[
                cf_save="$CPPFLAGS"
-               CPPFLAGS="$CPPFLAGS -D_DEFAULT_SOURCE"
+               CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
                AC_TRY_COMPILE([#include <sys/types.h>],[
                        #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 19) || (__GLIBC__ > 2)
                                return 0;
@@ -2747,9 +2765,9 @@ if test x$cf_cv_gnu_library = xyes; then
        ])
 
        if test "x$cf_cv_gnu_library_219" = xyes; then
+               cf_save="$CPPFLAGS"
                AC_CACHE_CHECK(if _XOPEN_SOURCE=$cf_gnu_xopen_source works with _DEFAULT_SOURCE,cf_cv_gnu_dftsrc_219,[
-                       cf_save="$CPPFLAGS"
-                       CPPFLAGS="$CPPFLAGS -D_DEFAULT_SOURCE -D_XOPEN_SOURCE=$cf_gnu_xopen_source"
+                       CF_ADD_CFLAGS(-D_DEFAULT_SOURCE -D_XOPEN_SOURCE=$cf_gnu_xopen_source)
                        AC_TRY_COMPILE([
                                #include <limits.h>
                                #include <sys/types.h>
@@ -2776,7 +2794,7 @@ if test x$cf_cv_gnu_library = xyes; then
                        #endif],
                        [cf_cv_gnu_source=no],
                        [cf_save="$CPPFLAGS"
-                        CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE"
+                        CF_ADD_CFLAGS(-D_GNU_SOURCE)
                         AC_TRY_COMPILE([#include <sys/types.h>],[
                                #ifdef _XOPEN_SOURCE
                                #error  expected _XOPEN_SOURCE to be undefined
@@ -2790,7 +2808,7 @@ if test x$cf_cv_gnu_library = xyes; then
                if test "$cf_cv_gnu_source" = yes
                then
                AC_CACHE_CHECK(if we should also define _DEFAULT_SOURCE,cf_cv_default_source,[
-                       CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE"
+                       CF_APPEND_TEXT(CPPFLAGS,-D_GNU_SOURCE)
                        AC_TRY_COMPILE([#include <sys/types.h>],[
                                #ifdef _DEFAULT_SOURCE
                                #error  expected _DEFAULT_SOURCE to be undefined
@@ -2798,7 +2816,10 @@ if test x$cf_cv_gnu_library = xyes; then
                                [cf_cv_default_source=no],
                                [cf_cv_default_source=yes])
                        ])
-                       test "$cf_cv_default_source" = yes && CPPFLAGS="$CPPFLAGS -D_DEFAULT_SOURCE"
+                       if test "$cf_cv_default_source" = yes
+                       then
+                               CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
+                       fi
                fi
        fi
 
@@ -3210,12 +3231,13 @@ CPPFLAGS="-I. $CPPFLAGS"
 AC_SUBST(CPPFLAGS)
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_INSTALL_OPTS version: 1 updated: 2014/07/21 18:19:51
+dnl CF_INSTALL_OPTS version: 2 updated: 2018/08/18 12:19:21
 dnl ---------------
 dnl prompt for/fill-in useful install-program options
 AC_DEFUN([CF_INSTALL_OPTS],
 [
 CF_INSTALL_OPT_S
+CF_INSTALL_OPT_P
 CF_INSTALL_OPT_O
 ])dnl
 dnl ---------------------------------------------------------------------------
@@ -3246,7 +3268,42 @@ fi
 AC_SUBST(INSTALL_OPT_O)
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_INSTALL_OPT_S version: 1 updated: 2014/07/21 18:19:51
+dnl CF_INSTALL_OPT_P version: 1 updated: 2018/08/18 12:19:21
+dnl ----------------
+dnl Some install-programs accept a "-p" option to preserve file modification
+dnl timestamps.  That can be useful as an install option, as well as a way to
+dnl avoid the need for ranlib after copying a static archive.
+AC_DEFUN([CF_INSTALL_OPT_P],
+[
+: ${INSTALL:=install}
+AC_CACHE_CHECK(if install accepts -p option, cf_cv_install_p,[
+       rm -rf conftest*
+       date >conftest.in
+       mkdir conftest.out
+       sleep 3
+       if $INSTALL -p conftest.in conftest.out 2>/dev/null
+       then
+               if test -f conftest.out/conftest.in
+               then
+                       test conftest.in -nt conftest.out/conftest.in 2>conftest.err && \
+                       test conftest.out/conftest.in -nt conftest.in 2>conftest.err
+                       if test -s conftest.err
+                       then
+                               cf_cv_install_p=no
+                       else
+                               cf_cv_install_p=yes
+                       fi
+               else
+                       cf_cv_install_p=no
+               fi
+       else
+               cf_cv_install_p=no
+       fi
+       rm -rf conftest*
+])
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_INSTALL_OPT_S version: 2 updated: 2018/08/18 12:19:21
 dnl ----------------
 dnl By default, we should strip executables which are installed, but leave the
 dnl ability to suppress that for unit-testing.
@@ -3254,7 +3311,7 @@ AC_DEFUN([CF_INSTALL_OPT_S],
 [
 AC_MSG_CHECKING(if you want to install stripped executables)
 CF_ARG_DISABLE(stripping,
-       [  --disable-stripping     do not strip installed executables],
+       [  --disable-stripping     do not strip (debug info) installed executables],
        [with_stripping=no],
        [with_stripping=yes])
 AC_MSG_RESULT($with_stripping)
@@ -3321,7 +3378,7 @@ 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: 10 updated: 2017/01/21 11:06:25
+dnl CF_LARGEFILE version: 11 updated: 2018/06/20 20:23:13
 dnl ------------
 dnl Add checks for large file support.
 AC_DEFUN([CF_LARGEFILE],[
@@ -3337,9 +3394,18 @@ ifdef([AC_FUNC_FSEEKO],[
        # header files by themselves before looking at the body files it is
        # told to compile.  For ncurses, those header files do not include
        # the config.h
-       test "$ac_cv_sys_large_files"      != no && CPPFLAGS="$CPPFLAGS -D_LARGE_FILES "
-       test "$ac_cv_sys_largefile_source" != no && CPPFLAGS="$CPPFLAGS -D_LARGEFILE_SOURCE "
-       test "$ac_cv_sys_file_offset_bits" != no && CPPFLAGS="$CPPFLAGS -D_FILE_OFFSET_BITS=$ac_cv_sys_file_offset_bits "
+       if test "$ac_cv_sys_large_files" != no
+       then
+               CF_APPEND_TEXT(CPPFLAGS,-D_LARGE_FILES)
+       fi
+       if test "$ac_cv_sys_largefile_source" != no
+       then
+               CF_APPEND_TEXT(CPPFLAGS,-D_LARGEFILE_SOURCE)
+       fi
+       if test "$ac_cv_sys_file_offset_bits" != no
+       then
+               CF_APPEND_TEXT(CPPFLAGS,-D_FILE_OFFSET_BITS=$ac_cv_sys_file_offset_bits)
+       fi
 
        AC_CACHE_CHECK(whether to use struct dirent64, cf_cv_struct_dirent64,[
                AC_TRY_COMPILE([
@@ -3463,7 +3529,7 @@ AC_SUBST(LDFLAGS_STATIC)
 AC_SUBST(LDFLAGS_SHARED)
 ])
 dnl ---------------------------------------------------------------------------
-dnl CF_LD_RPATH_OPT version: 7 updated: 2016/02/20 18:01:19
+dnl CF_LD_RPATH_OPT version: 8 updated: 2018/08/18 16:36:35
 dnl ---------------
 dnl For the given system and compiler, find the compiler flags to pass to the
 dnl loader to use the "rpath" feature.
@@ -3472,49 +3538,52 @@ AC_DEFUN([CF_LD_RPATH_OPT],
 AC_REQUIRE([CF_CHECK_CACHE])
 
 LD_RPATH_OPT=
-AC_MSG_CHECKING(for an rpath option)
-case $cf_cv_system_name in
-(irix*)
-       if test "$GCC" = yes; then
+if test "x$cf_cv_enable_rpath" != xno
+then
+       AC_MSG_CHECKING(for an rpath option)
+       case $cf_cv_system_name in
+       (irix*)
+               if test "$GCC" = yes; then
+                       LD_RPATH_OPT="-Wl,-rpath,"
+               else
+                       LD_RPATH_OPT="-rpath "
+               fi
+               ;;
+       (linux*|gnu*|k*bsd*-gnu|freebsd*)
                LD_RPATH_OPT="-Wl,-rpath,"
-       else
+               ;;
+       (openbsd[[2-9]].*|mirbsd*)
+               LD_RPATH_OPT="-Wl,-rpath,"
+               ;;
+       (dragonfly*)
                LD_RPATH_OPT="-rpath "
-       fi
-       ;;
-(linux*|gnu*|k*bsd*-gnu|freebsd*)
-       LD_RPATH_OPT="-Wl,-rpath,"
-       ;;
-(openbsd[[2-9]].*|mirbsd*)
-       LD_RPATH_OPT="-Wl,-rpath,"
-       ;;
-(dragonfly*)
-       LD_RPATH_OPT="-rpath "
-       ;;
-(netbsd*)
-       LD_RPATH_OPT="-Wl,-rpath,"
-       ;;
-(osf*|mls+*)
-       LD_RPATH_OPT="-rpath "
-       ;;
-(solaris2*)
-       LD_RPATH_OPT="-R"
-       ;;
-(*)
-       ;;
-esac
-AC_MSG_RESULT($LD_RPATH_OPT)
+               ;;
+       (netbsd*)
+               LD_RPATH_OPT="-Wl,-rpath,"
+               ;;
+       (osf*|mls+*)
+               LD_RPATH_OPT="-rpath "
+               ;;
+       (solaris2*)
+               LD_RPATH_OPT="-R"
+               ;;
+       (*)
+               ;;
+       esac
+       AC_MSG_RESULT($LD_RPATH_OPT)
 
-case "x$LD_RPATH_OPT" in
-(x-R*)
-       AC_MSG_CHECKING(if we need a space after rpath option)
-       cf_save_LIBS="$LIBS"
-       CF_ADD_LIBS(${LD_RPATH_OPT}$libdir)
-       AC_TRY_LINK(, , cf_rpath_space=no, cf_rpath_space=yes)
-       LIBS="$cf_save_LIBS"
-       AC_MSG_RESULT($cf_rpath_space)
-       test "$cf_rpath_space" = yes && LD_RPATH_OPT="$LD_RPATH_OPT "
-       ;;
-esac
+       case "x$LD_RPATH_OPT" in
+       (x-R*)
+               AC_MSG_CHECKING(if we need a space after rpath option)
+               cf_save_LIBS="$LIBS"
+               CF_ADD_LIBS(${LD_RPATH_OPT}$libdir)
+               AC_TRY_LINK(, , cf_rpath_space=no, cf_rpath_space=yes)
+               LIBS="$cf_save_LIBS"
+               AC_MSG_RESULT($cf_rpath_space)
+               test "$cf_rpath_space" = yes && LD_RPATH_OPT="$LD_RPATH_OPT "
+               ;;
+       esac
+fi
 ])dnl
 dnl ---------------------------------------------------------------------------
 dnl CF_LIBRARY_PATH version: 10 updated: 2015/04/15 19:08:48
@@ -3579,7 +3648,7 @@ ifelse($1,,,[$1=$LIB_PREFIX])
        AC_SUBST(LIB_PREFIX)
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_LIB_RULES version: 87 updated: 2017/07/26 17:08:35
+dnl CF_LIB_RULES version: 88 updated: 2018/08/18 12:19:21
 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
@@ -3915,6 +3984,7 @@ CF_EOF
                                ShlibVer=$cf_cv_shlib_version \
                                ShlibVerInfix=$cf_cv_shlib_version_infix \
                                ReLink=${cf_cv_do_relink:-no} \
+                               ReRanlib=${cf_cv_do_reranlib:-yes} \
                                DoLinks=$cf_cv_do_symlinks \
                                rmSoLocs=$cf_cv_rm_so_locs \
                                ldconfig="$LDCONFIG" \
@@ -5357,7 +5427,7 @@ fi
 AC_SUBST(PKG_CONFIG)
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_POSIX_C_SOURCE version: 9 updated: 2015/04/12 15:39:00
+dnl CF_POSIX_C_SOURCE version: 10 updated: 2018/06/20 20:23:13
 dnl -----------------
 dnl Define _POSIX_C_SOURCE to the given level, and _POSIX_SOURCE if needed.
 dnl
@@ -5410,7 +5480,8 @@ make an error
         fi
         CF_MSG_LOG(ifdef from value $cf_POSIX_C_SOURCE)
         CFLAGS="$cf_trim_CFLAGS"
-        CPPFLAGS="$cf_trim_CPPFLAGS $cf_cv_posix_c_source"
+        CPPFLAGS="$cf_trim_CPPFLAGS"
+        CF_APPEND_TEXT(CPPFLAGS,$cf_cv_posix_c_source)
         CF_MSG_LOG(if the second compile does not leave our definition intact error)
         AC_TRY_COMPILE([#include <sys/types.h>],[
 #ifndef _POSIX_C_SOURCE
@@ -5939,7 +6010,7 @@ CF_VERBOSE(...checked $1 [$]$1)
 AC_SUBST(EXTRA_LDFLAGS)
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_SHARED_OPTS version: 92 updated: 2017/12/30 17:26:05
+dnl CF_SHARED_OPTS version: 93 updated: 2018/08/18 16:36:35
 dnl --------------
 dnl --------------
 dnl Attempt to determine the appropriate CC/LD options for creating a shared
@@ -5967,6 +6038,7 @@ dnl Some loaders leave 'so_locations' lying around.  It's nice to clean up.
 AC_DEFUN([CF_SHARED_OPTS],
 [
        AC_REQUIRE([CF_LD_RPATH_OPT])
+
        RM_SHARED_OPTS=
        LOCAL_LDFLAGS=
        LOCAL_LDFLAGS2=
@@ -6154,7 +6226,7 @@ CF_EOF
                cf_cv_rm_so_locs=yes
                ;;
        (linux*|gnu*|k*bsd*-gnu)
-               if test "$DFT_LWR_MODEL" = "shared" ; then
+               if test "$DFT_LWR_MODEL" = "shared" && test -n "$LD_RPATH_OPT" ; then
                        LOCAL_LDFLAGS="${LD_RPATH_OPT}\$(LOCAL_LIBDIR)"
                        LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
                fi
@@ -6192,7 +6264,7 @@ CF_EOF
                chmod +x mk_shared_lib.sh
                ;;
        (openbsd[[2-9]].*|mirbsd*)
-               if test "$DFT_LWR_MODEL" = "shared" ; then
+               if test "$DFT_LWR_MODEL" = "shared" && test -n "$LD_RPATH_OPT" ; then
                        LOCAL_LDFLAGS="${LD_RPATH_OPT}\$(LOCAL_LIBDIR)"
                        LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
                fi
@@ -6248,7 +6320,7 @@ CF_EOF
                        ;;
                esac
                MK_SHARED_LIB="${MK_SHARED_LIB}"' -o $[@]'
-               if test "$DFT_LWR_MODEL" = "shared" ; then
+               if test "$DFT_LWR_MODEL" = "shared" && test -n "$LD_RPATH_OPT" ; then
                        LOCAL_LDFLAGS="${LD_RPATH_OPT}\$(LOCAL_LIBDIR)"
                        LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
                fi
@@ -6493,7 +6565,7 @@ 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: 13 updated: 2018/06/08 21:57:23
+dnl CF_SIZECHANGE version: 14 updated: 2018/06/20 20:23:13
 dnl -------------
 dnl Check for definitions & structures needed for window size-changing
 dnl
@@ -6509,7 +6581,10 @@ for cf_opts in "" "NEED_PTEM_H"
 do
 
        CPPFLAGS="$cf_save_CPPFLAGS"
-       test -n "$cf_opts" && CPPFLAGS="$CPPFLAGS -D$cf_opts"
+       if test -n "$cf_opts"
+       then
+               CF_APPEND_TEXT(CPPFLAGS,-D$cf_opts)
+       fi
        AC_TRY_COMPILE([#include <sys/types.h>
 #ifdef HAVE_TERMIOS_H
 #include <termios.h>
@@ -6914,7 +6989,34 @@ top_builddir=ifelse($1,,`pwd`,$1)
 AC_SUBST(top_builddir)
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_TRY_XOPEN_SOURCE version: 1 updated: 2011/10/30 17:09:50
+dnl CF_TRY_PKG_CONFIG version: 5 updated: 2013/07/06 21:27:06
+dnl -----------------
+dnl This is a simple wrapper to use for pkg-config, for libraries which may be
+dnl available in that form.
+dnl
+dnl $1 = package name
+dnl $2 = extra logic to use, if any, after updating CFLAGS and LIBS
+dnl $3 = logic to use if pkg-config does not have the package
+AC_DEFUN([CF_TRY_PKG_CONFIG],[
+AC_REQUIRE([CF_PKG_CONFIG])
+
+if test "$PKG_CONFIG" != none && "$PKG_CONFIG" --exists $1; then
+       CF_VERBOSE(found package $1)
+       cf_pkgconfig_incs="`$PKG_CONFIG --cflags $1 2>/dev/null`"
+       cf_pkgconfig_libs="`$PKG_CONFIG --libs   $1 2>/dev/null`"
+       CF_VERBOSE(package $1 CFLAGS: $cf_pkgconfig_incs)
+       CF_VERBOSE(package $1 LIBS: $cf_pkgconfig_libs)
+       CF_ADD_CFLAGS($cf_pkgconfig_incs)
+       CF_ADD_LIBS($cf_pkgconfig_libs)
+       ifelse([$2],,:,[$2])
+else
+       cf_pkgconfig_incs=
+       cf_pkgconfig_libs=
+       ifelse([$3],,:,[$3])
+fi
+])
+dnl ---------------------------------------------------------------------------
+dnl CF_TRY_XOPEN_SOURCE version: 2 updated: 2018/06/20 20:23:13
 dnl -------------------
 dnl If _XOPEN_SOURCE is not defined in the compile environment, check if we
 dnl can define it successfully.
@@ -6930,7 +7032,7 @@ make an error
 #endif],
        [cf_cv_xopen_source=no],
        [cf_save="$CPPFLAGS"
-        CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE=$cf_XOPEN_SOURCE"
+        CF_APPEND_TEXT(CPPFLAGS,-D_XOPEN_SOURCE=$cf_XOPEN_SOURCE)
         AC_TRY_COMPILE([
 #include <stdlib.h>
 #include <string.h>
@@ -7345,11 +7447,12 @@ AC_SUBST(ADA_OBJECTS)
 AC_MSG_RESULT($ADA_OBJECTS)
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_WITH_ADA_SHAREDLIB version: 4 updated: 2014/05/31 21:08:37
+dnl CF_WITH_ADA_SHAREDLIB version: 5 updated: 2018/07/21 19:10:35
 dnl ---------------------
 dnl Command-line option to specify if an Ada95 shared-library should be built,
 dnl and optionally what its soname should be.
 AC_DEFUN([CF_WITH_ADA_SHAREDLIB],[
+AC_REQUIRE([CF_GNAT_PROJECTS])
 AC_MSG_CHECKING(if an Ada95 shared-library should be built)
 AC_ARG_WITH(ada-sharedlib,
        [  --with-ada-sharedlib=soname build shared-library (requires GNAT projects)],
@@ -7357,6 +7460,15 @@ AC_ARG_WITH(ada-sharedlib,
        [with_ada_sharedlib=no])
 AC_MSG_RESULT($with_ada_sharedlib)
 
+if test "x$with_ada_sharedlib" != xno
+then
+       if test "x$cf_gnat_projects" != xyes
+       then
+               AC_MSG_WARN(disabling shared-library since GNAT projects are not supported)
+               with_ada_sharedlib=no
+       fi
+fi
+
 ADA_SHAREDLIB='lib$(LIB_NAME).so.1'
 MAKE_ADA_SHAREDLIB="#"
 
@@ -7728,6 +7840,48 @@ case "x$cf_dst_eval" in
 esac
 AC_SUBST($3)dnl
 
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_WITH_PCRE2 version: 2 updated: 2018/07/14 16:47:56
+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
+dnl use the POSIX interface.
+dnl
+dnl TODO allow $withval to specify package location
+AC_DEFUN([CF_WITH_PCRE2],
+[
+AC_REQUIRE([CF_PKG_CONFIG])
+
+AC_MSG_CHECKING(if you want to use PCRE2 for regular-expressions)
+AC_ARG_WITH(pcre2,
+       [  --with-pcre2            use PCRE2 for regular-expressions])
+test -z "$with_pcre2" && with_pcre2=no
+AC_MSG_RESULT($with_pcre2)
+
+if test "x$with_pcre2" != xno ; then
+       CF_TRY_PKG_CONFIG(libpcre2,,[
+       CF_TRY_PKG_CONFIG(libpcre,,[
+                       AC_MSG_ERROR(Cannot find PCRE2 library)])])
+
+       AC_DEFINE(HAVE_LIB_PCRE2,1,[Define to 1 if we can/should compile with the PCRE2 library])
+
+       # if pkgconfig gave no results, look for the libraries directly
+       case $LIBS in
+       (*pcre2-posix*|*pcreposix*)
+               ;;
+       (*)
+               AC_CHECK_LIB(pcre2-posix,regcomp,[
+                       CF_ADD_LIB(pcre2-posix)],
+                       [AC_CHECK_LIB(pcreposix,regcomp,[
+                        CF_ADD_LIB(pcreposix)
+                       ],[AC_MSG_ERROR(Cannot find PCRE2 POSIX library)])])
+               ;;
+       esac
+
+       # either way, check for the library header files
+       AC_CHECK_HEADERS(pcre2-posix.h pcreposix.h)
+fi
 ])dnl
 dnl ---------------------------------------------------------------------------
 dnl CF_WITH_PKG_CONFIG_LIBDIR version: 10 updated: 2015/08/22 17:10:56