While building a cross-compiler, the the libstdc++-v3 includes a copy of
Libtool script, which includes a reference to libstdc++ itself. This prevent
the user to build a new compiler without existing libstdc++ for the target
triplet.
The following is a patch that tested to be working for this problem, but I
think it should be done in a better way.
#######BEGIN OF PATCH CODE######
diff -Naur gcc-4.3-20080410.orig/libstdc++-v3/src/Makefile.in
gcc-4.3-20080410/libstdc++-v3/src/Makefile.in
--- gcc-4.3-20080410.orig/libstdc++-v3/src/Makefile.in 2008-03-01
05:26:50.000000000 +1100
+++ gcc-4.3-20080410/libstdc++-v3/src/Makefile.in 2008-04-14
23:16:35.000000000 +1000
@@ -212,6 +212,7 @@
LIBS = @LIBS@
LIBSUPCXX_PICFLAGS = @LIBSUPCXX_PICFLAGS@
LIBTOOL = @LIBTOOL@
+LIBTOOLLINK = @[EMAIL PROTECTED]
LN_S = @LN_S@
LTLIBICONV = @LTLIBICONV@
LTLIBOBJS = @LTLIBOBJS@
@@ -472,7 +473,7 @@
# course is problematic at this point. So, we get the top-level
# directory to configure libstdc++-v3 to use gcc as the C++
# compilation driver.
-CXXLINK = $(LIBTOOL) --tag CXX --mode=link $(CXX) \
+CXXLINK = $(LIBTOOLLINK) --tag CXX --mode=link $(CXX) \
$(OPT_LDFLAGS) $(SECTION_LDFLAGS) $(AM_CXXFLAGS) $(LTLDFLAGS) -o $@
debugdir = debug
@@ -536,7 +537,8 @@
echo "rm -f \"$${dir}/so_locations\""; \
rm -f "$${dir}/so_locations"; \
done
-libstdc++.la: $(libstdc___la_OBJECTS) $(libstdc___la_DEPENDENCIES)
+libstdc++.la: $(libstdc___la_OBJECTS) $(libstdc___la_DEPENDENCIES)
+ sed '/postdeps=/[EMAIL PROTECTED]@\-lm@' `echo $(LIBTOOL) | cut -d\
-f2` >
`echo $(LIBTOOLLINK) | cut -d\ -f2`
$(CXXLINK) -rpath $(toolexeclibdir) $(libstdc___la_LDFLAGS)
$(libstdc___la_OBJECTS) $(libstdc___la_LIBADD) $(LIBS)
mostlyclean-compile:
#######END OF PATCH CODE######
--
Summary: Self Reference In Dinamic Linked Library builds for
building Cross-Compiler
Product: gcc
Version: 4.3.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: earthengine at gmail dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35942
