Make SHLIB_LD_LIBS='${LIBS}' the default and set to "" on per-platform necessary basis.

Backported from TEA, but kept all original platform code which was removed from TEA.

3 files changed, 12 insertions, 67 deletions

diff --git a/ChangeLog b/ChangeLog
index f6d5e96..3745253 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,6 +1,9 @@
 2011-03-16  Jan Nijtmans  <nijtmans@users.sf.net>
 
-	* unix/configure (autoconf-2.59)
+	* unix/tcl.m4:    Make SHLIB_LD_LIBS='${LIBS}' the default and
+	* unix/configure: set to "" on per-platform necessary basis.
+	Backported from TEA, but kept all original platform code which was
+	removed from TEA.
 
 2011-03-12  Jan Nijtmans  <nijtmans@users.sf.net>
 
diff --git a/unix/configure b/unix/configure
index 8317953..616da22 100755
--- a/unix/configure
+++ b/unix/configure
@@ -4836,6 +4836,8 @@ fi
     # Step 3: set configuration options based on system name and version.
 
     do64bit_ok=no
+    # default to '{$LIBS}' and set to "" on per-platform necessary basis
+    SHLIB_LD_LIBS='${LIBS}'
     LDFLAGS_ORIG="$LDFLAGS"
     # When ld needs options to work in 64-bit mode, put them in
     # LDFLAGS_ARCH so they eventually end up in LDFLAGS even if [load]
@@ -4960,9 +4962,6 @@ fi
 
 	    LIBS="$LIBS -lc"
 	    SHLIB_CFLAGS=""
-	    # Note: need the LIBS below, otherwise Tk won't find Tcl's
-	    # symbols when dynamically loaded into tclsh.
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".so"
 
 	    DL_OBJS="tclLoadDl.o"
@@ -5037,7 +5036,6 @@ fi
 	BeOS*)
 	    SHLIB_CFLAGS="-fPIC"
 	    SHLIB_LD='${CC} -nostart'
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".so"
 	    DL_OBJS="tclLoadDl.o"
 	    DL_LIBS="-ldl"
@@ -5119,7 +5117,6 @@ fi
 	BSD/OS-2.1*|BSD/OS-3*)
 	    SHLIB_CFLAGS=""
 	    SHLIB_LD="shlicc -r"
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".so"
 	    DL_OBJS="tclLoadDl.o"
 	    DL_LIBS="-ldl"
@@ -5129,7 +5126,6 @@ fi
 	BSD/OS-4.*)
 	    SHLIB_CFLAGS="-export-dynamic -fPIC"
 	    SHLIB_LD='${CC} -shared'
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".so"
 	    DL_OBJS="tclLoadDl.o"
 	    DL_LIBS="-ldl"
@@ -5140,7 +5136,6 @@ fi
 	CYGWIN_*)
 	    SHLIB_CFLAGS=""
 	    SHLIB_LD='${CC} -shared'
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".dll"
 	    DL_OBJS="tclLoadDl.o"
 	    DL_LIBS="-ldl"
@@ -5160,7 +5155,6 @@ fi
 	Haiku*)
 	    LDFLAGS="$LDFLAGS -Wl,--export-dynamic"
 	    SHLIB_CFLAGS="-fPIC"
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".so"
 	    SHLIB_LD='${CC} -shared ${CFLAGS} ${LDFLAGS}'
 	    DL_OBJS="tclLoadDl.o"
@@ -5332,7 +5326,6 @@ fi
 
 		SHLIB_CFLAGS="+z"
 		SHLIB_LD="ld -b"
-		SHLIB_LD_LIBS='${LIBS}'
 		DL_OBJS="tclLoadShl.o"
 		DL_LIBS="-ldld"
 		LDFLAGS="$LDFLAGS -Wl,-E"
@@ -5345,7 +5338,6 @@ fi
 	    if test "$GCC" = yes; then
 
 		SHLIB_LD='${CC} -shared'
-		SHLIB_LD_LIBS='${LIBS}'
 		LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
 
 fi
@@ -5364,7 +5356,6 @@ fi
 			    # 64-bit gcc in use.  Fix flags for GNU ld.
 			    do64bit_ok=yes
 			    SHLIB_LD='${CC} -shared'
-			    SHLIB_LD_LIBS='${LIBS}'
 			    if test $doRpath = yes; then
 
 				CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
@@ -5478,7 +5469,6 @@ fi
 	IRIX-5.*)
 	    SHLIB_CFLAGS=""
 	    SHLIB_LD="ld -shared -rdata_shared"
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".so"
 	    DL_OBJS="tclLoadDl.o"
 	    DL_LIBS=""
@@ -5492,7 +5482,6 @@ fi
 	IRIX-6.*)
 	    SHLIB_CFLAGS=""
 	    SHLIB_LD="ld -n32 -shared -rdata_shared"
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".so"
 	    DL_OBJS="tclLoadDl.o"
 	    DL_LIBS=""
@@ -5526,7 +5515,6 @@ fi
 	IRIX64-6.*)
 	    SHLIB_CFLAGS=""
 	    SHLIB_LD="ld -n32 -shared -rdata_shared"
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".so"
 	    DL_OBJS="tclLoadDl.o"
 	    DL_LIBS=""
@@ -5561,7 +5549,6 @@ fi
 	    ;;
 	Linux*)
 	    SHLIB_CFLAGS="-fPIC"
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".so"
 
 	    CFLAGS_OPTIMIZE="-O2"
@@ -5668,7 +5655,6 @@ fi
 	    ;;
 	GNU*)
 	    SHLIB_CFLAGS="-fPIC"
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".so"
 
 	    SHLIB_LD='${CC} -shared'
@@ -5684,7 +5670,6 @@ fi
 	    ;;
 	Lynx*)
 	    SHLIB_CFLAGS="-fPIC"
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".so"
 	    CFLAGS_OPTIMIZE=-02
 	    SHLIB_LD='${CC} -shared'
@@ -5722,7 +5707,6 @@ fi
 	NetBSD-1.*|FreeBSD-[1-2].*)
 	    SHLIB_CFLAGS="-fPIC"
 	    SHLIB_LD="ld -Bshareable -x"
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".so"
 	    DL_OBJS="tclLoadDl.o"
 	    DL_LIBS=""
@@ -5784,11 +5768,11 @@ fi
 		# Equivalent using configure option --disable-load
 		# Step 4 will set the necessary variables
 		DL_OBJS=""
+		SHLIB_LD_LIBS=""
 		;;
 	    *)
 		SHLIB_CFLAGS="-fPIC"
 		SHLIB_LD='${CC} -shared ${SHLIB_CFLAGS}'
-		SHLIB_LD_LIBS='${LIBS}'
 		SHLIB_SUFFIX=".so"
 		DL_OBJS="tclLoadDl.o"
 		DL_LIBS=""
@@ -5867,7 +5851,6 @@ fi
 	    # NetBSD 2.* has ELF and can use 'cc -shared' to build shared libs
 	    SHLIB_CFLAGS="-fPIC"
 	    SHLIB_LD='${CC} -shared ${SHLIB_CFLAGS}'
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".so"
 	    DL_OBJS="tclLoadDl.o"
 	    DL_LIBS=""
@@ -5901,7 +5884,6 @@ fi
 	    SHLIB_CFLAGS="-fPIC"
 	    SHLIB_LD="${CC} -shared"
 	    TCL_SHLIB_LD_EXTRAS="-soname \$@"
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".so"
 	    DL_OBJS="tclLoadDl.o"
 	    DL_LIBS=""
@@ -6155,7 +6137,6 @@ echo "${ECHO_T}$tcl_cv_ld_single_module" >&6
 
 fi
 
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".dylib"
 	    DL_OBJS="tclLoadDyld.o"
 	    DL_LIBS=""
@@ -6445,6 +6426,7 @@ fi
 	    LD_SEARCH_FLAGS=""
 	    ;;
 	OS/390-*)
+	    SHLIB_LD_LIBS=""
 	    CFLAGS_OPTIMIZE=""		# Optimizer is buggy
 
 cat >>confdefs.h <<\_ACEOF
@@ -6495,7 +6477,6 @@ else
 
 fi
 
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".so"
 	    DL_OBJS="tclLoadDl.o"
 	    DL_LIBS=""
@@ -6617,11 +6598,6 @@ _ACEOF
 
 
 	    SHLIB_CFLAGS="-KPIC"
-
-	    # Note: need the LIBS below, otherwise Tk won't find Tcl's
-	    # symbols when dynamically loaded into tclsh.
-
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".so"
 	    DL_OBJS="tclLoadDl.o"
 	    DL_LIBS="-ldl"
@@ -6910,11 +6886,6 @@ fi
 
 fi
 
-
-	    # Note: need the LIBS below, otherwise Tk won't find Tcl's
-	    # symbols when dynamically loaded into tclsh.
-
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".so"
 	    DL_OBJS="tclLoadDl.o"
 	    DL_LIBS="-ldl"
diff --git a/unix/tcl.m4 b/unix/tcl.m4
index 2f2f317..1bbcf3a 100644
--- a/unix/tcl.m4
+++ b/unix/tcl.m4
@@ -1120,6 +1120,8 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
     # Step 3: set configuration options based on system name and version.
 
     do64bit_ok=no
+    # default to '{$LIBS}' and set to "" on per-platform necessary basis
+    SHLIB_LD_LIBS='${LIBS}'
     LDFLAGS_ORIG="$LDFLAGS"
     # When ld needs options to work in 64-bit mode, put them in
     # LDFLAGS_ARCH so they eventually end up in LDFLAGS even if [load]
@@ -1157,9 +1159,6 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 	    ])
 	    LIBS="$LIBS -lc"
 	    SHLIB_CFLAGS=""
-	    # Note: need the LIBS below, otherwise Tk won't find Tcl's
-	    # symbols when dynamically loaded into tclsh.
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".so"
 
 	    DL_OBJS="tclLoadDl.o"
@@ -1210,7 +1209,6 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 	BeOS*)
 	    SHLIB_CFLAGS="-fPIC"
 	    SHLIB_LD='${CC} -nostart'
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".so"
 	    DL_OBJS="tclLoadDl.o"
 	    DL_LIBS="-ldl"
@@ -1225,7 +1223,6 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 	BSD/OS-2.1*|BSD/OS-3*)
 	    SHLIB_CFLAGS=""
 	    SHLIB_LD="shlicc -r"
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".so"
 	    DL_OBJS="tclLoadDl.o"
 	    DL_LIBS="-ldl"
@@ -1235,7 +1232,6 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 	BSD/OS-4.*)
 	    SHLIB_CFLAGS="-export-dynamic -fPIC"
 	    SHLIB_LD='${CC} -shared'
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".so"
 	    DL_OBJS="tclLoadDl.o"
 	    DL_LIBS="-ldl"
@@ -1246,7 +1242,6 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 	CYGWIN_*)
 	    SHLIB_CFLAGS=""
 	    SHLIB_LD='${CC} -shared'
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".dll"
 	    DL_OBJS="tclLoadDl.o"
 	    DL_LIBS="-ldl"
@@ -1266,7 +1261,6 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 	Haiku*)
 	    LDFLAGS="$LDFLAGS -Wl,--export-dynamic"
 	    SHLIB_CFLAGS="-fPIC"
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".so"
 	    SHLIB_LD='${CC} -shared ${CFLAGS} ${LDFLAGS}'
 	    DL_OBJS="tclLoadDl.o"
@@ -1288,7 +1282,6 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 	    AS_IF([test "$tcl_ok" = yes], [
 		SHLIB_CFLAGS="+z"
 		SHLIB_LD="ld -b"
-		SHLIB_LD_LIBS='${LIBS}'
 		DL_OBJS="tclLoadShl.o"
 		DL_LIBS="-ldld"
 		LDFLAGS="$LDFLAGS -Wl,-E"
@@ -1298,7 +1291,6 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 	    ])
 	    AS_IF([test "$GCC" = yes], [
 		SHLIB_LD='${CC} -shared'
-		SHLIB_LD_LIBS='${LIBS}'
 		LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
 	    ])
 
@@ -1313,7 +1305,6 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 			    # 64-bit gcc in use.  Fix flags for GNU ld.
 			    do64bit_ok=yes
 			    SHLIB_LD='${CC} -shared'
-			    SHLIB_LD_LIBS='${LIBS}'
 			    AS_IF([test $doRpath = yes], [
 				CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'])
 			    LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
@@ -1345,7 +1336,6 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 	IRIX-5.*)
 	    SHLIB_CFLAGS=""
 	    SHLIB_LD="ld -shared -rdata_shared"
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".so"
 	    DL_OBJS="tclLoadDl.o"
 	    DL_LIBS=""
@@ -1356,7 +1346,6 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 	IRIX-6.*)
 	    SHLIB_CFLAGS=""
 	    SHLIB_LD="ld -n32 -shared -rdata_shared"
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".so"
 	    DL_OBJS="tclLoadDl.o"
 	    DL_LIBS=""
@@ -1382,7 +1371,6 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 	IRIX64-6.*)
 	    SHLIB_CFLAGS=""
 	    SHLIB_LD="ld -n32 -shared -rdata_shared"
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".so"
 	    DL_OBJS="tclLoadDl.o"
 	    DL_LIBS=""
@@ -1405,7 +1393,6 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 	    ;;
 	Linux*)
 	    SHLIB_CFLAGS="-fPIC"
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".so"
 
 	    CFLAGS_OPTIMIZE="-O2"
@@ -1444,7 +1431,6 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 	    ;;
 	GNU*)
 	    SHLIB_CFLAGS="-fPIC"
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".so"
 
 	    SHLIB_LD='${CC} -shared'
@@ -1457,7 +1443,6 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 	    ;;
 	Lynx*)
 	    SHLIB_CFLAGS="-fPIC"
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".so"
 	    CFLAGS_OPTIMIZE=-02
 	    SHLIB_LD='${CC} -shared'
@@ -1492,7 +1477,6 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 	NetBSD-1.*|FreeBSD-[[1-2]].*)
 	    SHLIB_CFLAGS="-fPIC"
 	    SHLIB_LD="ld -Bshareable -x"
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".so"
 	    DL_OBJS="tclLoadDl.o"
 	    DL_LIBS=""
@@ -1523,11 +1507,11 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 		# Equivalent using configure option --disable-load
 		# Step 4 will set the necessary variables
 		DL_OBJS=""
+		SHLIB_LD_LIBS=""
 		;;
 	    *)
 		SHLIB_CFLAGS="-fPIC"
 		SHLIB_LD='${CC} -shared ${SHLIB_CFLAGS}'
-		SHLIB_LD_LIBS='${LIBS}'
 		SHLIB_SUFFIX=".so"
 		DL_OBJS="tclLoadDl.o"
 		DL_LIBS=""
@@ -1572,7 +1556,6 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 	    # NetBSD 2.* has ELF and can use 'cc -shared' to build shared libs
 	    SHLIB_CFLAGS="-fPIC"
 	    SHLIB_LD='${CC} -shared ${SHLIB_CFLAGS}'
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".so"
 	    DL_OBJS="tclLoadDl.o"
 	    DL_LIBS=""
@@ -1600,7 +1583,6 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 	    SHLIB_CFLAGS="-fPIC"
 	    SHLIB_LD="${CC} -shared"
 	    TCL_SHLIB_LD_EXTRAS="-soname \$[@]"
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".so"
 	    DL_OBJS="tclLoadDl.o"
 	    DL_LIBS=""
@@ -1675,7 +1657,6 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 	    AS_IF([test $tcl_cv_ld_single_module = yes], [
 		SHLIB_LD="${SHLIB_LD} -Wl,-single_module"
 	    ])
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".dylib"
 	    DL_OBJS="tclLoadDyld.o"
 	    DL_LIBS=""
@@ -1769,6 +1750,7 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 	    LD_SEARCH_FLAGS=""
 	    ;;
 	OS/390-*)
+	    SHLIB_LD_LIBS=""
 	    CFLAGS_OPTIMIZE=""		# Optimizer is buggy
 	    AC_DEFINE(_OE_SOCKETS, 1,	# needed in sys/socket.h
 		[Should OS/390 do the right thing with sockets?])
@@ -1806,7 +1788,6 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 	    ], [
 	        SHLIB_LD='ld -non_shared -expect_unresolved "*"'
 	    ])
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".so"
 	    DL_OBJS="tclLoadDl.o"
 	    DL_LIBS=""
@@ -1900,11 +1881,6 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 		[Do we really want to follow the standard? Yes we do!])
 
 	    SHLIB_CFLAGS="-KPIC"
-
-	    # Note: need the LIBS below, otherwise Tk won't find Tcl's
-	    # symbols when dynamically loaded into tclsh.
-
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".so"
 	    DL_OBJS="tclLoadDl.o"
 	    DL_LIBS="-ldl"
@@ -1994,11 +1970,6 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 			use_sunmath=no
 		])
 	    ])
-
-	    # Note: need the LIBS below, otherwise Tk won't find Tcl's
-	    # symbols when dynamically loaded into tclsh.
-
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".so"
 	    DL_OBJS="tclLoadDl.o"
 	    DL_LIBS="-ldl"