X-Git-Url: https://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=aclocal.m4;h=892e62827fc707ddbc4e79137e640fbc5036c6a6;hp=3ce9ffe5cf6520e233fbab2a59ef1bc09881f780;hb=55051e74621a33ee60ea8e38fe1e0a3e38a573ab;hpb=a3173aa5edbdbc6d617800f81a88a304ac5e053c

diff --git a/aclocal.m4 b/aclocal.m4
index 3ce9ffe5..892e6282 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 1.605 2012/02/18 23:06:14 tom Exp $
+dnl $Id: aclocal.m4,v 1.622 2012/08/26 14:01:23 tom Exp $
 dnl Macros used in NCURSES auto-configuration script.
 dnl
 dnl These macros are maintained separately from NCURSES.  The copyright on
@@ -996,6 +996,39 @@ then
 fi
 ])dnl
 dnl ---------------------------------------------------------------------------
+dnl CF_CLANG_COMPILER version: 1 updated: 2012/06/16 14:55:39
+dnl -----------------
+dnl Check if the given compiler is really clang.  clang's C driver defines
+dnl __GNUC__ (fooling the configure script into setting $GCC to yes) but does
+dnl not ignore some gcc options.
+dnl
+dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
+dnl ensure that it is not mistaken for gcc/g++.  It is normally invoked from
+dnl the wrappers for gcc and g++ warnings.
+dnl
+dnl $1 = GCC (default) or GXX
+dnl $2 = INTEL_COMPILER (default) or INTEL_CPLUSPLUS
+dnl $3 = CFLAGS (default) or CXXFLAGS
+AC_DEFUN([CF_CLANG_COMPILER],[
+ifelse([$2],,CLANG_COMPILER,[$2])=no
+
+if test "$ifelse([$1],,[$1],GCC)" = yes ; then
+	AC_MSG_CHECKING(if this is really Clang ifelse([$1],GXX,C++,C) compiler)
+	cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
+	ifelse([$3],,CFLAGS,[$3])="$ifelse([$3],,CFLAGS,[$3]) -Qunused-arguments"
+	AC_TRY_COMPILE([],[
+#ifdef __clang__
+#else
+make an error
+#endif
+],[ifelse([$2],,CLANG_COMPILER,[$2])=yes
+cf_save_CFLAGS="$cf_save_CFLAGS -Qunused-arguments"
+],[])
+	ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
+	AC_MSG_RESULT($ifelse([$2],,CLANG_COMPILER,[$2]))
+fi
+])
+dnl ---------------------------------------------------------------------------
 dnl CF_CPP_PARAM_INIT version: 5 updated: 2011/12/03 16:54:03
 dnl -----------------
 dnl Check if the C++ compiler accepts duplicate parameter initialization.  This
@@ -1135,7 +1168,7 @@ cerr << "testing" << endl;
 fi
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_C_INLINE version: 3 updated: 2010/05/01 15:14:41
+dnl CF_C_INLINE version: 4 updated: 2012/06/16 14:55:39
 dnl -----------
 dnl Check if the C compiler supports "inline".
 dnl $1 is the name of a shell variable to set if inline is supported
@@ -1146,6 +1179,9 @@ $1=
 if test "$ac_cv_c_inline" != no ; then
   $1=inline
   if test "$INTEL_COMPILER" = yes
+  then
+    :
+  elif test "$CLANG_COMPILER" = yes
   then
     :
   elif test "$GCC" = yes
@@ -1193,6 +1229,43 @@ done
 AC_SUBST(DIRS_TO_MAKE)
 ])dnl
 dnl ---------------------------------------------------------------------------
+dnl CF_DISABLE_ECHO version: 11 updated: 2009/12/13 13:16:57
+dnl ---------------
+dnl You can always use "make -n" to see the actual options, but it's hard to
+dnl pick out/analyze warning messages when the compile-line is long.
+dnl
+dnl Sets:
+dnl	ECHO_LT - symbol to control if libtool is verbose
+dnl	ECHO_LD - symbol to prefix "cc -o" lines
+dnl	RULE_CC - symbol to put before implicit "cc -c" lines (e.g., .c.o)
+dnl	SHOW_CC - symbol to put before explicit "cc -c" lines
+dnl	ECHO_CC - symbol to put before any "cc" line
+dnl
+AC_DEFUN([CF_DISABLE_ECHO],[
+AC_MSG_CHECKING(if you want to see long compiling messages)
+CF_ARG_DISABLE(echo,
+	[  --disable-echo          display "compiling" commands],
+	[
+    ECHO_LT='--silent'
+    ECHO_LD='@echo linking [$]@;'
+    RULE_CC='@echo compiling [$]<'
+    SHOW_CC='@echo compiling [$]@'
+    ECHO_CC='@'
+],[
+    ECHO_LT=''
+    ECHO_LD=''
+    RULE_CC=''
+    SHOW_CC=''
+    ECHO_CC=''
+])
+AC_MSG_RESULT($enableval)
+AC_SUBST(ECHO_LT)
+AC_SUBST(ECHO_LD)
+AC_SUBST(RULE_CC)
+AC_SUBST(SHOW_CC)
+AC_SUBST(ECHO_CC)
+])dnl
+dnl ---------------------------------------------------------------------------
 dnl CF_DISABLE_LEAKS version: 6 updated: 2010/07/23 04:14:32
 dnl ----------------
 dnl Combine no-leak checks with the libraries or tools that are used for the
@@ -1259,7 +1332,7 @@ if test "$cf_disable_rpath_hack" = no ; then
 fi
 ])
 dnl ---------------------------------------------------------------------------
-dnl CF_ENABLE_PC_FILES version: 7 updated: 2011/12/10 18:58:47
+dnl CF_ENABLE_PC_FILES version: 9 updated: 2012/08/04 13:59:54
 dnl ------------------
 dnl This is the "--enable-pc-files" option, which is available if there is a
 dnl pkg-config configuration on the local machine.
@@ -1268,16 +1341,15 @@ AC_REQUIRE([CF_PKG_CONFIG])
 AC_REQUIRE([CF_WITH_PKG_CONFIG_LIBDIR])
 
 if test "$PKG_CONFIG" != none ; then
-	if test -n "$PKG_CONFIG_LIBDIR" && test -d "$PKG_CONFIG_LIBDIR" ; then
-		AC_MSG_CHECKING(if we should install .pc files for $PKG_CONFIG)
-		AC_ARG_ENABLE(pc-files,
-			[  --enable-pc-files       generate and install .pc files for pkg-config],
-			[enable_pc_files=$enableval],
-			[enable_pc_files=no])
-		AC_MSG_RESULT($enable_pc_files)
-	elif test -z "$PKG_CONFIG_LIBDIR" || test "$PKG_CONFIG_LIBDIR" != no; then
-		enable_pc_files=no
-		AC_MSG_WARN(did not find $PKG_CONFIG library)
+	AC_MSG_CHECKING(if we should install .pc files for $PKG_CONFIG)
+	AC_ARG_ENABLE(pc-files,
+		[  --enable-pc-files       generate and install .pc files for pkg-config],
+		[enable_pc_files=$enableval],
+		[enable_pc_files=no])
+	AC_MSG_RESULT($enable_pc_files)
+	if test "$enable_pc_files" != no
+	then
+		CF_PATH_SYNTAX(PKG_CONFIG_LIBDIR)
 	fi
 else
 	enable_pc_files=no
@@ -1298,6 +1370,37 @@ AC_ARG_ENABLE(rpath,
 AC_MSG_RESULT($cf_cv_enable_rpath)
 ])dnl
 dnl ---------------------------------------------------------------------------
+dnl CF_ENABLE_STRING_HACKS version: 1 updated: 2012/02/25 06:33:21
+dnl ----------------------
+dnl On a few platforms, the compiler and/or loader nags with untruthful
+dnl comments stating that "most" uses of strcat/strcpy/sprintf are incorrect,
+dnl and implying that most uses of the recommended alternatives are correct.
+dnl
+dnl Factually speaking, no one has actually counted the number of uses of these
+dnl functions versus the total of incorrect uses.  Samples of a few thousand
+dnl instances are meaningless compared to the hundreds of millions of lines of
+dnl existing C code.
+dnl
+dnl strlcat/strlcpy are (as of 2012) non-standard, and are available on some
+dnl platforms, in implementations of varying quality.  Likewise, snprintf is
+dnl standard - but evolved through phases, and older implementations are likely
+dnl to yield surprising results, as documented in manpages on various systems.
+AC_DEFUN([CF_ENABLE_STRING_HACKS],
+[
+AC_MSG_CHECKING(if you want to work around bogus compiler/loader warnings)
+AC_ARG_ENABLE(string-hacks,
+	[  --enable-string-hacks  work around bogus compiler/loader warnings],
+	[with_string_hacks=$enableval],
+	[with_string_hacks=no])
+AC_MSG_RESULT($with_string_hacks)
+
+if test "x$with_string_hacks" = "xyes"; then
+ 	AC_DEFINE(USE_STRING_HACKS)
+	AC_MSG_WARN(enabling string-hacks to work around bogus compiler/loader warnings)
+	AC_CHECK_FUNCS( strlcat strlcpy snprintf )
+fi
+])dnl
+dnl ---------------------------------------------------------------------------
 dnl CF_ERRNO version: 5 updated: 1997/11/30 12:44:39
 dnl --------
 dnl Check if 'errno' is declared in <errno.h>
@@ -1472,6 +1575,25 @@ ifelse([$5],,AC_MSG_WARN(Cannot find $3 library),[$5])
 fi
 ])dnl
 dnl ---------------------------------------------------------------------------
+dnl CF_FIXUP_ADAFLAGS version: 1 updated: 2012/03/31 18:48:10
+dnl -----------------
+dnl make ADAFLAGS consistent with CFLAGS
+AC_DEFUN([CF_FIXUP_ADAFLAGS],[
+	AC_MSG_CHECKING(optimization options for ADAFLAGS)
+	case "$CFLAGS" in
+	*-g*)
+		CF_ADD_ADAFLAGS(-g)
+		;;
+	esac
+	case "$CFLAGS" in
+	*-O*)
+		cf_O_flag=`echo "$CFLAGS" |sed -e 's/^.*-O/-O/' -e 's/[[ 	]].*//'`
+		CF_ADD_ADAFLAGS($cf_O_flag)
+		;;
+	esac
+	AC_MSG_RESULT($ADAFLAGS)
+])dnl
+dnl ---------------------------------------------------------------------------
 dnl CF_FUNC_DLSYM version: 2 updated: 2010/05/29 16:31:02
 dnl -------------
 dnl Test for dlsym() and related functions, as well as libdl.
@@ -1600,14 +1722,17 @@ AC_CACHE_CHECK(for openpty header,cf_cv_func_openpty,[
 ])
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_FUNC_POLL version: 5 updated: 2012/01/25 17:55:38
+dnl CF_FUNC_POLL version: 7 updated: 2012/06/09 16:22:17
 dnl ------------
 dnl See if the poll function really works.  Some platforms have poll(), but
 dnl it does not work for terminals or files.
 AC_DEFUN([CF_FUNC_POLL],[
 AC_CACHE_CHECK(if poll really works,cf_cv_working_poll,[
 AC_TRY_RUN([
+#include <stdlib.h>
 #include <stdio.h>
+#include <unistd.h>
+#include <fcntl.h>
 #ifdef HAVE_POLL_H
 #include <poll.h>
 #else
@@ -1618,7 +1743,7 @@ int main() {
 	int ret;
 
 	/* check for Darwin bug with respect to "devices" */
-	myfds.fd = open("/dev/null", 1);
+	myfds.fd = open("/dev/null", 1);	/* O_WRONLY */
 	if (myfds.fd < 0)
 		myfds.fd = 0;
 	myfds.events = POLLIN;
@@ -1629,18 +1754,22 @@ int main() {
 	if (ret < 0 || (myfds.revents & POLLNVAL)) {
 		ret = -1;
 	} else {
+		int fd = 0;
+		if (!isatty(fd)) {
+			fd = open("/dev/tty", 2);	/* O_RDWR */
+		}
 
-		/* also check with standard input */
-		myfds.fd = 0;
-		myfds.events = POLLIN;
-		myfds.revents = 0;
-
-		ret = poll(&myfds, 1, 100);
-		if (ret < 0) {
-			ret = 0;
+		if (fd >= 0) {
+			/* also check with standard input */
+			myfds.fd = fd;
+			myfds.events = POLLIN;
+			myfds.revents = 0;
+			ret = poll(&myfds, 1, 100);
+		} else {
+			ret = -1;
 		}
 	}
-	${cf_cv_main_return:-return}(ret != 0);
+	${cf_cv_main_return:-return}(ret < 0);
 }],
 	[cf_cv_working_poll=yes],
 	[cf_cv_working_poll=no],
@@ -1846,7 +1975,7 @@ if test "$GCC" = yes ; then
 fi
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_GCC_WARNINGS version: 27 updated: 2010/10/23 15:52:32
+dnl CF_GCC_WARNINGS version: 29 updated: 2012/06/16 14:55:39
 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:
@@ -1869,6 +1998,7 @@ AC_DEFUN([CF_GCC_WARNINGS],
 [
 AC_REQUIRE([CF_GCC_VERSION])
 CF_INTEL_COMPILER(GCC,INTEL_COMPILER,CFLAGS)
+CF_CLANG_COMPILER(GCC,CLANG_COMPILER,CFLAGS)
 
 cat > conftest.$ac_ext <<EOF
 #line __oline__ "${as_me:-configure}"
@@ -1944,6 +2074,13 @@ then
 					continue;;
 				esac
 				;;
+			Wpointer-arith) #(vi
+				case $GCC_VERSION in
+				[[12]].*)
+					CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
+					continue;;
+				esac
+				;;
 			esac
 			EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
 		fi
@@ -2345,21 +2482,21 @@ if test "$GXX" = yes; then
 fi
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_GXX_VERSION version: 6 updated: 2010/10/23 15:44:18
+dnl CF_GXX_VERSION version: 7 updated: 2012/06/16 14:55:39
 dnl --------------
 dnl Check for version of g++
 AC_DEFUN([CF_GXX_VERSION],[
 AC_REQUIRE([AC_PROG_CPP])
 GXX_VERSION=none
 if test "$GXX" = yes; then
-	AC_MSG_CHECKING(version of g++)
+	AC_MSG_CHECKING(version of ${CXX:-g++})
 	GXX_VERSION="`${CXX:-g++} --version| sed -e '2,$d' -e 's/^.*(GCC) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
 	test -z "$GXX_VERSION" && GXX_VERSION=unknown
 	AC_MSG_RESULT($GXX_VERSION)
 fi
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_GXX_WARNINGS version: 6 updated: 2010/08/14 18:25:37
+dnl CF_GXX_WARNINGS version: 7 updated: 2012/06/16 14:55:39
 dnl ---------------
 dnl Check if the compiler supports useful warning options.
 dnl
@@ -2382,6 +2519,7 @@ AC_DEFUN([CF_GXX_WARNINGS],
 [
 
 CF_INTEL_COMPILER(GXX,INTEL_CPLUSPLUS,CXXFLAGS)
+CF_CLANG_COMPILER(GXX,CLANG_CPLUSPLUS,CXXFLAGS)
 
 AC_REQUIRE([CF_GXX_VERSION])
 
@@ -2992,7 +3130,7 @@ ifelse($1,,,[$1=$LIB_PREFIX])
 	AC_SUBST(LIB_PREFIX)
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_LIB_RULES version: 63 updated: 2012/01/21 19:28:10
+dnl CF_LIB_RULES version: 65 updated: 2012/06/30 17:25:25
 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
@@ -3010,10 +3148,12 @@ AC_DEFUN([CF_LIB_RULES],
 cf_prefix=$LIB_PREFIX
 AC_REQUIRE([CF_SUBST_NCURSES_VERSION])
 
-if test $cf_cv_shlib_version = cygdll ; then
+case $cf_cv_shlib_version in #(vi
+cygdll|mingw)
 	TINFO_NAME=$TINFO_ARG_SUFFIX
 	TINFO_SUFFIX=.dll
-fi
+	;;
+esac
 
 if test -n "$TINFO_SUFFIX" ; then
 	case $TINFO_SUFFIX in
@@ -3099,11 +3239,18 @@ do
 			# cygwin needs import library, and has unique naming convention
 			# use autodetected ${cf_prefix} for import lib and static lib, but
 			# use 'cyg' prefix for shared lib.
-			if test $cf_cv_shlib_version = cygdll ; then
+			case $cf_cv_shlib_version in #(vi
+			cygdll) #(vi
 				cf_cygsuf=`echo "$cf_suffix" | sed -e 's/\.dll/\${ABI_VERSION}.dll/'`
 				LIBS_TO_MAKE="$LIBS_TO_MAKE ../lib/cyg${cf_dir}${cf_cygsuf}"
 				continue
-			fi
+				;;
+			mingw)
+				cf_cygsuf=`echo "$cf_suffix" | sed -e 's/\.dll/\${ABI_VERSION}.dll/'`
+				LIBS_TO_MAKE="$LIBS_TO_MAKE ../lib/lib${cf_dir}${cf_cygsuf}"
+				continue
+				;;
+			esac
 			fi
 			LIBS_TO_MAKE="$LIBS_TO_MAKE ../lib/${cf_prefix}${cf_dir}${cf_suffix}"
 		done
@@ -3147,7 +3294,7 @@ do
 		mv $cf_dir/Makefile.out $cf_dir/Makefile
 
 		$AWK -f $srcdir/mk-0th.awk \
-			libname="${cf_dir}${LIB_SUFFIX}" subsets="$LIB_SUBSETS" \
+			libname="${cf_dir}${LIB_SUFFIX}" subsets="$LIB_SUBSETS" ticlib="$TICS_LIB_SUFFIX" termlib="$TINFO_LIB_SUFFIX" \
 			$srcdir/$cf_dir/modules >>$cf_dir/Makefile
 
 		for cf_subset in $cf_subsets
@@ -3512,7 +3659,7 @@ fi
 ])
 ])
 dnl ---------------------------------------------------------------------------
-dnl CF_LIB_SUFFIX version: 17 updated: 2011/07/02 15:36:04
+dnl CF_LIB_SUFFIX version: 18 updated: 2012/02/25 15:20:07
 dnl -------------
 dnl Compute the library file-suffix from the given model name
 dnl $1 = model name
@@ -3545,7 +3692,7 @@ AC_DEFUN([CF_LIB_SUFFIX],
 			$2='.a'
 			$3=[$]$2
 			;;
-		cygwin*) #(vi
+		cygwin*|mingw*) #(vi
 			$2='.dll'
 			$3='.dll.a'
 			;;
@@ -4019,7 +4166,7 @@ AC_ARG_WITH(manpage-tbl,
 AC_MSG_RESULT($MANPAGE_TBL)
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_MAN_PAGES version: 40 updated: 2011/09/10 16:20:21
+dnl CF_MAN_PAGES version: 41 updated: 2012/08/11 19:35:44
 dnl ------------
 dnl Try to determine if the man-pages on the system are compressed, and if
 dnl so, what format is used.  Use this information to construct a script that
@@ -4076,6 +4223,7 @@ cat >$cf_edit_man <<CF_EOF
 # this script is generated by the configure-script CF_MAN_PAGES macro.
 
 prefix="$cf_prefix"
+datarootdir="$datarootdir"
 datadir="$datadir"
 
 NCURSES_MAJOR="$NCURSES_MAJOR"
@@ -4570,7 +4718,7 @@ ifelse([$1],,,[$1=$PATH_SEPARATOR])
 	AC_SUBST(PATH_SEPARATOR)
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_PATH_SYNTAX version: 13 updated: 2010/05/26 05:38:42
+dnl CF_PATH_SYNTAX version: 14 updated: 2012/06/19 20:58:54
 dnl --------------
 dnl Check the argument to see that it looks like a pathname.  Rewrite it if it
 dnl begins with one of the prefix/exec_prefix variables, and then again if the
@@ -4590,7 +4738,7 @@ case ".[$]$1" in #(vi
   ;;
 .[[a-zA-Z]]:[[\\/]]*) #(vi OS/2 EMX
   ;;
-.\[$]{*prefix}*) #(vi
+.\[$]{*prefix}*|.\[$]{*dir}*) #(vi
   eval $1="[$]$1"
   case ".[$]$1" in #(vi
   .NONE/*)
@@ -5218,7 +5366,7 @@ CF_VERBOSE(...checked $1 [$]$1)
 AC_SUBST(EXTRA_LDFLAGS)
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_SHARED_OPTS version: 69 updated: 2011/07/30 19:31:39
+dnl CF_SHARED_OPTS version: 70 updated: 2012/02/25 15:20:07
 dnl --------------
 dnl --------------
 dnl Attempt to determine the appropriate CC/LD options for creating a shared
@@ -5387,6 +5535,27 @@ CF_EOF
 		CF_SHARED_SONAME
 		MK_SHARED_LIB='${CC} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
 		;;
+	mingw*) #(vi
+		cf_cv_shlib_version=mingw
+		cf_cv_shlib_version_infix=mingw
+		CC_SHARED_OPTS=
+		MK_SHARED_LIB='sh ../mk_shared_lib.sh [$]@ [$]{CC} [$]{CFLAGS}'
+		#MK_SHARED_LIB='${CC} ${CFLAGS} -mdll -Wl,-soname,'$cf_cv_shared_soname',-stats -o $[@]'
+		#MK_SHARED_LIB='${DLLTOOL} --export-all-symbols --output-exp --output-lib $[@]'
+		cat >mk_shared_lib.sh <<-CF_EOF
+		#!/bin/sh
+		SHARED_LIB=\[$]1
+		IMPORT_LIB=\`echo "\[$]1" | sed -e 's/[[0-9]]*\.dll[$]/.dll.a/'\`
+		shift
+		cat <<-EOF
+		Linking shared library
+		** SHARED_LIB \[$]SHARED_LIB
+		** IMPORT_LIB \[$]IMPORT_LIB
+EOF
+		exec \[$]* -shared -Wl,--out-implib=../lib/\[$]{IMPORT_LIB} -Wl,--export-all-symbols -o ../lib/\[$]{SHARED_LIB}
+CF_EOF
+		chmod +x mk_shared_lib.sh
+		;;
 	openbsd[[2-9]].*|mirbsd*) #(vi
 		if test "$DFT_LWR_MODEL" = "shared" ; then
 			LOCAL_LDFLAGS="${LD_RPATH_OPT}\$(LOCAL_LIBDIR)"
@@ -5528,6 +5697,9 @@ CF_EOF
 	test -n "$cf_ld_rpath_opt" && MK_SHARED_LIB="$MK_SHARED_LIB $cf_ld_rpath_opt\${RPATH_LIST}"
 	test -z "$RPATH_LIST" && RPATH_LIST="\${libdir}"
 
+	CF_VERBOSE(CC_SHARED_OPTS: $CC_SHARED_OPTS)
+	CF_VERBOSE(MK_SHARED_LIB:  $MK_SHARED_LIB)
+
 	AC_SUBST(CC_SHARED_OPTS)
 	AC_SUBST(LD_RPATH_OPT)
 	AC_SUBST(LD_SHARED_OPTS)
@@ -6666,7 +6838,7 @@ ifelse([$4],,[withval="${$3}"],[withval="${$3:-ifelse([$5],,[$4],[$5])}"]))dnl
 if ifelse([$5],,true,[test -n "$5"]) ; then
 CF_PATH_SYNTAX(withval)
 fi
-$3="$withval"
+eval $3="$withval"
 AC_SUBST($3)dnl
 ])dnl
 dnl ---------------------------------------------------------------------------
@@ -6707,7 +6879,7 @@ esac
 cf_dst_path=`echo "$cf_dst_path" | sed -e 's/\\\\/\\\\\\\\/g'`
 ])
 
-eval '$3="$cf_dst_path"'
+eval $3="$cf_dst_path"
 AC_SUBST($3)dnl
 
 ])dnl