X-Git-Url: https://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=aclocal.m4;h=83913491b8a020f738ef86a65aa996113517184d;hp=14da7c45490b5ceeba114ae83f0647f2decb167d;hb=c28f91b50f153f0f7b03e0d5d7152e4fa02a7bec;hpb=5da4544722decdeb2bfd0c7c4581af0ea62148f9

diff --git a/aclocal.m4 b/aclocal.m4
index 14da7c45..83913491 100644
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -28,7 +28,7 @@ dnl***************************************************************************
 dnl
 dnl Author: Thomas E. Dickey 1995-on
 dnl
-dnl $Id: aclocal.m4,v 1.839 2018/06/21 00:23:13 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
@@ -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
@@ -3214,12 +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 ---------------------------------------------------------------------------
@@ -3250,7 +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 $INSTALL -p conftest.in conftest.out 2>/dev/null
+	then
+		if test -f conftest.out/conftest.in
+		then
+			test conftest.in -nt conftest.out/conftest.in 2>conftest.err && \
+			test conftest.out/conftest.in -nt conftest.in 2>conftest.err
+			if test -s conftest.err
+			then
+				cf_cv_install_p=no
+			else
+				cf_cv_install_p=yes
+			fi
+		else
+			cf_cv_install_p=no
+		fi
+	else
+		cf_cv_install_p=no
+	fi
+	rm -rf conftest*
+])
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_INSTALL_OPT_S version: 2 updated: 2018/08/18 12:19:21
 dnl ----------------
 dnl By default, we should strip executables which are installed, but leave the
 dnl ability to suppress that for unit-testing.
@@ -3258,7 +3311,7 @@ AC_DEFUN([CF_INSTALL_OPT_S],
 [
 AC_MSG_CHECKING(if you want to install stripped executables)
 CF_ARG_DISABLE(stripping,
-	[  --disable-stripping     do not strip installed executables],
+	[  --disable-stripping     do not strip (debug info) installed executables],
 	[with_stripping=no],
 	[with_stripping=yes])
 AC_MSG_RESULT($with_stripping)
@@ -3476,7 +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.
@@ -3485,49 +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
@@ -3592,7 +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
@@ -3928,6 +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" \
@@ -5953,7 +6010,7 @@ CF_VERBOSE(...checked $1 [$]$1)
 AC_SUBST(EXTRA_LDFLAGS)
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_SHARED_OPTS version: 92 updated: 2017/12/30 17:26:05
+dnl CF_SHARED_OPTS version: 93 updated: 2018/08/18 16:36:35
 dnl --------------
 dnl --------------
 dnl Attempt to determine the appropriate CC/LD options for creating a shared
@@ -5981,6 +6038,7 @@ dnl Some loaders leave 'so_locations' lying around.  It's nice to clean up.
 AC_DEFUN([CF_SHARED_OPTS],
 [
 	AC_REQUIRE([CF_LD_RPATH_OPT])
+
 	RM_SHARED_OPTS=
 	LOCAL_LDFLAGS=
 	LOCAL_LDFLAGS2=
@@ -6168,7 +6226,7 @@ CF_EOF
 		cf_cv_rm_so_locs=yes
 		;;
 	(linux*|gnu*|k*bsd*-gnu)
-		if test "$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
@@ -6206,7 +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="$LOCAL_LDFLAGS"
 		fi
@@ -6262,7 +6320,7 @@ CF_EOF
 			;;
 		esac
 		MK_SHARED_LIB="${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
@@ -6931,6 +6989,33 @@ top_builddir=ifelse($1,,`pwd`,$1)
 AC_SUBST(top_builddir)
 ])dnl
 dnl ---------------------------------------------------------------------------
+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],,:,[$3])
+fi
+])
+dnl ---------------------------------------------------------------------------
 dnl CF_TRY_XOPEN_SOURCE version: 2 updated: 2018/06/20 20:23:13
 dnl -------------------
 dnl If _XOPEN_SOURCE is not defined in the compile environment, check if we
@@ -7362,11 +7447,12 @@ AC_SUBST(ADA_OBJECTS)
 AC_MSG_RESULT($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)],
@@ -7374,6 +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="#"
 
@@ -7745,6 +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