]> ncurses.scripts.mit.edu Git - ncurses.git/blobdiff - test/aclocal.m4
ncurses 6.1 - patch 20181215
[ncurses.git] / test / aclocal.m4
index c8555279bd8a9abb0fac64b4b12ab0d223c8c3af..4163e3387cde6b500bc7a8390056d183271a5899 100644 (file)
@@ -26,7 +26,7 @@ dnl sale, use or other dealings in this Software without prior written       *
 dnl authorization.                                                           *
 dnl***************************************************************************
 dnl
-dnl $Id: aclocal.m4,v 1.156 2018/01/15 16:11:53 tom Exp $
+dnl $Id: aclocal.m4,v 1.162 2018/12/15 19:58:40 tom Exp $
 dnl
 dnl Author: Thomas E. Dickey
 dnl
@@ -177,7 +177,7 @@ 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,
@@ -208,7 +208,7 @@ 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")],
                                  [],
@@ -386,7 +386,7 @@ ifelse([$3],,[    :]dnl
 ])dnl
 ])])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
@@ -403,11 +403,28 @@ 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))); }'`
@@ -691,7 +708,7 @@ CF_NCURSES_VERSION
 CF_CURSES_LIBS
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_CURSES_CPPFLAGS version: 12 updated: 2015/04/15 19:08:48
+dnl CF_CURSES_CPPFLAGS version: 13 updated: 2018/06/20 20:23:13
 dnl ------------------
 dnl Look for the curses headers.
 AC_DEFUN([CF_CURSES_CPPFLAGS],[
@@ -716,7 +733,10 @@ case $host_os in
        ;;
 esac
 ])
-test "$cf_cv_curses_incdir" != no && CPPFLAGS="$CPPFLAGS $cf_cv_curses_incdir"
+if test "$cf_cv_curses_incdir" != no
+then
+       CF_APPEND_TEXT(CPPFLAGS,$cf_cv_curses_incdir)
+fi
 
 CF_CURSES_HEADER
 CF_TERM_HEADER
@@ -789,7 +809,7 @@ fi
 AC_CHECK_HEADERS($cf_cv_ncurses_header)
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_CURSES_LIBS version: 41 updated: 2017/12/31 19:23:43
+dnl CF_CURSES_LIBS version: 42 updated: 2018/06/20 20:23:13
 dnl --------------
 dnl Look for the curses libraries.  Older curses implementations may require
 dnl termcap/termlib to be linked as well.  Call CF_CURSES_CPPFLAGS first.
@@ -822,7 +842,7 @@ case $host_os in
                AC_CHECK_LIB(Hcurses,initscr,[
                        # HP's header uses __HP_CURSES, but user claims _HP_CURSES.
                        CF_ADD_LIBS(-lHcurses)
-                       CPPFLAGS="$CPPFLAGS -D__HP_CURSES -D_HP_CURSES"
+                       CF_APPEND_TEXT(CPPFLAGS,-D__HP_CURSES -D_HP_CURSES)
                        ac_cv_func_initscr=yes
                        ])])
        fi
@@ -1295,7 +1315,7 @@ fi
 ])
 ])dnl
 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.
@@ -1354,7 +1374,8 @@ 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_$3=maybe
@@ -1599,7 +1620,7 @@ if test "$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:
@@ -1693,7 +1714,7 @@ 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
@@ -1746,7 +1767,7 @@ if test $cf_cv_getopt_header = getopt.h ; then
 fi
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_GNU_SOURCE version: 7 updated: 2016/08/05 05:15:37
+dnl CF_GNU_SOURCE version: 10 updated: 2018/12/10 20:09:41
 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
@@ -1754,38 +1775,106 @@ dnl (or misfeature) of glibc2, which breaks portability of many applications,
 dnl since it is interwoven with GNU extensions.
 dnl
 dnl Well, yes we could work around it...
+dnl
+dnl Parameters:
+dnl    $1 is the nominal value for _XOPEN_SOURCE
 AC_DEFUN([CF_GNU_SOURCE],
 [
-AC_CACHE_CHECK(if we must define _GNU_SOURCE,cf_cv_gnu_source,[
+cf_gnu_xopen_source=ifelse($1,,500,$1)
+
+AC_CACHE_CHECK(if this is the GNU C library,cf_cv_gnu_library,[
 AC_TRY_COMPILE([#include <sys/types.h>],[
-#ifndef _XOPEN_SOURCE
-make an error
-#endif],
-       [cf_cv_gnu_source=no],
-       [cf_save="$CPPFLAGS"
-        CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE"
-        AC_TRY_COMPILE([#include <sys/types.h>],[
-#ifdef _XOPEN_SOURCE
-make an error
-#endif],
-       [cf_cv_gnu_source=no],
-       [cf_cv_gnu_source=yes])
-       CPPFLAGS="$cf_save"
-       ])
+       #if __GLIBC__ > 0 && __GLIBC_MINOR__ >= 0
+               return 0;
+       #elif __NEWLIB__ > 0 && __NEWLIB_MINOR__ >= 0
+               return 0;
+       #else
+       #       error not GNU C library
+       #endif],
+       [cf_cv_gnu_library=yes],
+       [cf_cv_gnu_library=no])
 ])
 
-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"
-       AC_TRY_COMPILE([#include <sys/types.h>],[
-#ifdef _DEFAULT_SOURCE
-make an error
-#endif],
-               [cf_cv_default_source=no],
-               [cf_cv_default_source=yes])
+if test x$cf_cv_gnu_library = xyes; then
+
+       # With glibc 2.19 (13 years after this check was begun), _DEFAULT_SOURCE
+       # was changed to help a little.  newlib incorporated the change about 4
+       # years later.
+       AC_CACHE_CHECK(if _DEFAULT_SOURCE can be used as a basis,cf_cv_gnu_library_219,[
+               cf_save="$CPPFLAGS"
+               CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
+               AC_TRY_COMPILE([#include <sys/types.h>],[
+                       #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 19) || (__GLIBC__ > 2)
+                               return 0;
+                       #elif (__NEWLIB__ == 2 && __NEWLIB_MINOR__ >= 4) || (__GLIBC__ > 3)
+                               return 0;
+                       #else
+                       #       error GNU C library __GLIBC__.__GLIBC_MINOR__ is too old
+                       #endif],
+                       [cf_cv_gnu_library_219=yes],
+                       [cf_cv_gnu_library_219=no])
+               CPPFLAGS="$cf_save"
        ])
-test "$cf_cv_default_source" = yes && CPPFLAGS="$CPPFLAGS -D_DEFAULT_SOURCE"
+
+       if test "x$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_ADD_CFLAGS(-D_DEFAULT_SOURCE -D_XOPEN_SOURCE=$cf_gnu_xopen_source)
+                       AC_TRY_COMPILE([
+                               #include <limits.h>
+                               #include <sys/types.h>
+                               ],[
+                               #if (_XOPEN_SOURCE >= $cf_gnu_xopen_source) && (MB_LEN_MAX > 1)
+                                       return 0;
+                               #else
+                               #       error GNU C library is too old
+                               #endif],
+                               [cf_cv_gnu_dftsrc_219=yes],
+                               [cf_cv_gnu_dftsrc_219=no])
+                       ])
+               test "x$cf_cv_gnu_dftsrc_219" = "xyes" || CPPFLAGS="$cf_save"
+       else
+               cf_cv_gnu_dftsrc_219=maybe
+       fi
+
+       if test "x$cf_cv_gnu_dftsrc_219" != xyes; then
+
+               AC_CACHE_CHECK(if we must define _GNU_SOURCE,cf_cv_gnu_source,[
+               AC_TRY_COMPILE([#include <sys/types.h>],[
+                       #ifndef _XOPEN_SOURCE
+                       #error  expected _XOPEN_SOURCE to be defined
+                       #endif],
+                       [cf_cv_gnu_source=no],
+                       [cf_save="$CPPFLAGS"
+                        CF_ADD_CFLAGS(-D_GNU_SOURCE)
+                        AC_TRY_COMPILE([#include <sys/types.h>],[
+                               #ifdef _XOPEN_SOURCE
+                               #error  expected _XOPEN_SOURCE to be undefined
+                               #endif],
+                               [cf_cv_gnu_source=no],
+                               [cf_cv_gnu_source=yes])
+                       CPPFLAGS="$cf_save"
+                       ])
+               ])
+
+               if test "$cf_cv_gnu_source" = yes
+               then
+               AC_CACHE_CHECK(if we should also define _DEFAULT_SOURCE,cf_cv_default_source,[
+                       CF_APPEND_TEXT(CPPFLAGS,-D_GNU_SOURCE)
+                       AC_TRY_COMPILE([#include <sys/types.h>],[
+                               #ifdef _DEFAULT_SOURCE
+                               #error  expected _DEFAULT_SOURCE to be undefined
+                               #endif],
+                               [cf_cv_default_source=no],
+                               [cf_cv_default_source=yes])
+                       ])
+                       if test "$cf_cv_default_source" = yes
+                       then
+                               CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
+                       fi
+               fi
+       fi
+
 fi
 ])dnl
 dnl ---------------------------------------------------------------------------
@@ -1850,12 +1939,13 @@ AC_DEFUN([CF_INHERIT_SCRIPT],
 test -f $1 || ( test -f ../$1 && cp ../$1 ./ )
 ])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 ---------------------------------------------------------------------------
@@ -1886,7 +1976,42 @@ 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 $INSTALL -p conftest.in conftest.out 2>/dev/null
+       then
+               if test -f conftest.out/conftest.in
+               then
+                       test conftest.in -nt conftest.out/conftest.in 2>conftest.err && \
+                       test conftest.out/conftest.in -nt conftest.in 2>conftest.err
+                       if test -s conftest.err
+                       then
+                               cf_cv_install_p=no
+                       else
+                               cf_cv_install_p=yes
+                       fi
+               else
+                       cf_cv_install_p=no
+               fi
+       else
+               cf_cv_install_p=no
+       fi
+       rm -rf conftest*
+])
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_INSTALL_OPT_S version: 2 updated: 2018/08/18 12:19:21
 dnl ----------------
 dnl By default, we should strip executables which are installed, but leave the
 dnl ability to suppress that for unit-testing.
@@ -1894,7 +2019,7 @@ AC_DEFUN([CF_INSTALL_OPT_S],
 [
 AC_MSG_CHECKING(if you want to install stripped executables)
 CF_ARG_DISABLE(stripping,
-       [  --disable-stripping     do not strip installed executables],
+       [  --disable-stripping     do not strip (debug info) installed executables],
        [with_stripping=no],
        [with_stripping=yes])
 AC_MSG_RESULT($with_stripping)
@@ -1946,7 +2071,7 @@ cf_save_CFLAGS="$cf_save_CFLAGS -we147"
 fi
 ])dnl
 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.
@@ -1955,49 +2080,52 @@ 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
@@ -2162,7 +2290,7 @@ printf("old\n");
        ,[$1=no])
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_NCURSES_CONFIG version: 20 updated: 2018/01/03 04:47:33
+dnl CF_NCURSES_CONFIG version: 21 updated: 2018/06/20 20:23:13
 dnl -----------------
 dnl Tie together the configure-script macros for ncurses, preferring these in
 dnl order:
@@ -2187,7 +2315,7 @@ if test "x${PKG_CONFIG:=none}" != xnone; then
                cf_save_CPPFLAGS="$CPPFLAGS"
                cf_save_LIBS="$LIBS"
 
-               CPPFLAGS="$CPPFLAGS `$PKG_CONFIG --cflags $cf_ncuconfig_root`"
+               CF_ADD_CFLAGS(`$PKG_CONFIG --cflags $cf_ncuconfig_root`)
                CF_ADD_LIBS(`$PKG_CONFIG --libs $cf_ncuconfig_root`)
 
                AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
@@ -2229,7 +2357,7 @@ if test "x$cf_have_ncuconfig" = "xno"; then
 
        if test "$NCURSES_CONFIG" != none ; then
 
-               CPPFLAGS="$CPPFLAGS `$NCURSES_CONFIG --cflags`"
+               CF_ADD_CFLAGS(`$NCURSES_CONFIG --cflags`)
                CF_ADD_LIBS(`$NCURSES_CONFIG --libs`)
 
                # even with config script, some packages use no-override for curses.h
@@ -2674,7 +2802,7 @@ case ".[$]$1" in
 esac
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_PDCURSES_X11 version: 13 updated: 2012/10/06 16:39:58
+dnl CF_PDCURSES_X11 version: 14 updated: 2018/06/20 20:23:13
 dnl ---------------
 dnl Configure for PDCurses' X11 library
 AC_DEFUN([CF_PDCURSES_X11],[
@@ -2686,7 +2814,7 @@ CF_ACVERSION_CHECK(2.52,
 
 if test "$XCURSES_CONFIG" != none ; then
 
-CPPFLAGS="$CPPFLAGS `$XCURSES_CONFIG --cflags`"
+CF_ADD_CFLAGS(`$XCURSES_CONFIG --cflags`)
 CF_ADD_LIBS(`$XCURSES_CONFIG --libs`)
 
 cf_cv_lib_XCurses=yes
@@ -2755,7 +2883,7 @@ 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
@@ -2808,7 +2936,8 @@ 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,$cf_cv_posix_c_source)
         CF_MSG_LOG(if the second compile does not leave our definition intact error)
         AC_TRY_COMPILE([#include <sys/types.h>],[
 #ifndef _POSIX_C_SOURCE
@@ -3309,7 +3438,7 @@ else
 fi
 ])
 dnl ---------------------------------------------------------------------------
-dnl CF_TRY_XOPEN_SOURCE version: 1 updated: 2011/10/30 17:09:50
+dnl CF_TRY_XOPEN_SOURCE version: 2 updated: 2018/06/20 20:23:13
 dnl -------------------
 dnl If _XOPEN_SOURCE is not defined in the compile environment, check if we
 dnl can define it successfully.
@@ -3325,7 +3454,7 @@ make an error
 #endif],
        [cf_cv_xopen_source=no],
        [cf_save="$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>
@@ -3652,7 +3781,7 @@ fi
 AC_SUBST(no_x11_rgb)
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_XOPEN_CURSES version: 13 updated: 2015/12/12 20:59:52
+dnl CF_XOPEN_CURSES version: 14 updated: 2018/06/20 20:23:13
 dnl ---------------
 dnl Test if we should define X/Open source for curses, needed on Digital Unix
 dnl 4.x, to see the extended functions, but breaks on IRIX 6.x.
@@ -3701,13 +3830,13 @@ AC_TRY_LINK([
 
 case $cf_cv_need_xopen_extension in
 (*_*)
-       CPPFLAGS="$CPPFLAGS -D$cf_cv_need_xopen_extension"
+       CF_APPEND_TEXT(CPPFLAGS,-D$cf_cv_need_xopen_extension)
        ;;
 esac
 
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_XOPEN_SOURCE version: 52 updated: 2016/08/27 12:21:42
+dnl CF_XOPEN_SOURCE version: 54 updated: 2018/11/07 07:43:44
 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,
@@ -3737,7 +3866,7 @@ case $host_os in
        cf_xopen_source="-D_DARWIN_C_SOURCE"
        cf_XOPEN_SOURCE=
        ;;
-(freebsd*|dragonfly*)
+(freebsd*|dragonfly*|midnightbsd*)
        # 5.x headers associate
        #       _XOPEN_SOURCE=600 with _POSIX_C_SOURCE=200112L
        #       _XOPEN_SOURCE=500 with _POSIX_C_SOURCE=199506L
@@ -3756,7 +3885,7 @@ case $host_os in
        cf_XOPEN_SOURCE=
        ;;
 (linux*|uclinux*|gnu*|mint*|k*bsd*-gnu|cygwin)
-       CF_GNU_SOURCE
+       CF_GNU_SOURCE($cf_XOPEN_SOURCE)
        ;;
 (minix*)
        cf_xopen_source="-D_NETBSD_SOURCE" # POSIX.1-2001 features are ifdef'd with this...
@@ -3946,7 +4075,7 @@ if test -z "$cf_x_athena_lib" ; then
 fi
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_X_ATHENA_CPPFLAGS version: 5 updated: 2010/05/26 17:35:30
+dnl CF_X_ATHENA_CPPFLAGS version: 6 updated: 2018/06/20 20:23:13
 dnl --------------------
 dnl Normally invoked by CF_X_ATHENA, with $1 set to the appropriate flavor of
 dnl the Athena widgets, e.g., Xaw, Xaw3d, neXtaw.
@@ -3965,7 +4094,8 @@ do
                cf_save="$CPPFLAGS"
                cf_test=X11/$cf_x_athena_root/SimpleMenu.h
                if test $cf_path != default ; then
-                       CPPFLAGS="$cf_save -I$cf_path/include"
+                       CPPFLAGS="$cf_save"
+                       CF_APPEND_TEXT(CPPFLAGS,-I$cf_path/include)
                        AC_MSG_CHECKING(for $cf_test in $cf_path)
                else
                        AC_MSG_CHECKING(for $cf_test)
@@ -3989,7 +4119,7 @@ if test -z "$cf_x_athena_inc" ; then
        AC_MSG_WARN(
 [Unable to successfully find Athena header files with test program])
 elif test "$cf_x_athena_inc" != default ; then
-       CPPFLAGS="$CPPFLAGS -I$cf_x_athena_inc"
+       CF_APPEND_TEXT(CPPFLAGS,-I$cf_x_athena_inc)
 fi
 ])
 dnl ---------------------------------------------------------------------------