uClibc++: Update to 0.2.5
authorRosen Penev <rosenp@gmail.com>
Sun, 7 Apr 2019 06:37:56 +0000 (23:37 -0700)
committerHauke Mehrtens <hauke@hauke-m.de>
Sat, 11 May 2019 21:10:10 +0000 (23:10 +0200)
Switched to xz archives for smaller size.

Removed upstreamed patches.

Reorganized Makefile a little bit for clarity. Build/Prepare is not useful
anymore. Upstream converted the file to LF.

Refreshed config.

Removed -ansi option from the original CFLAGS as this was causing long
long support to be missing.

Removed fPIC. We have the macro $(FPIC) already used. No point in setting
fpic and fPIC together.

Removed pedantic -Wlong-long warnings as they are not useful.

Removed -std=gnu++98. Not only is it unnecessary (it compiles against all
standards), it actually results in a size increase. 75843 vs. 75222 (gcc
in OpenWrt defaults to g++14).

Added --gc-sections to linker flags to reduce size: 72653 vs 75222.

Removed warn linker options. They have been upstreamed.

Tested on Archer C7v2 and GnuBee PC1.

Signed-off-by: Rosen Penev <rosenp@gmail.com>
13 files changed:
package/libs/uclibc++/Makefile
package/libs/uclibc++/files/config.default
package/libs/uclibc++/patches/001-no-ansi.patch [new file with mode: 0644]
package/libs/uclibc++/patches/002-path_to_bash.patch [deleted file]
package/libs/uclibc++/patches/002-quote-fix.patch [new file with mode: 0644]
package/libs/uclibc++/patches/003-no-fPIC.patch [new file with mode: 0644]
package/libs/uclibc++/patches/004-no-pedantic.patch [new file with mode: 0644]
package/libs/uclibc++/patches/006-eabi_fix.patch [deleted file]
package/libs/uclibc++/patches/010-honor-ldflags.patch [deleted file]
package/libs/uclibc++/patches/020-template-fix.patch [deleted file]
package/libs/uclibc++/patches/030-memory_corruption_fix.patch [deleted file]
package/libs/uclibc++/patches/040-delete-c++14.patch [deleted file]
package/libs/uclibc++/patches/050-Bugfix-erase-on-derived-__base_associative.patch [deleted file]

index 7133a7e..763e0d9 100644 (file)
@@ -9,12 +9,12 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=uclibc++
-PKG_VERSION:=0.2.4
-PKG_RELEASE:=3
+PKG_VERSION:=0.2.5
+PKG_RELEASE:=1
 
-PKG_SOURCE:=uClibc++-$(PKG_VERSION).tar.bz2
-PKG_SOURCE_URL:=http://cxx.uclibc.org/src/
-PKG_HASH:=be16fc6a6eb2e59df420ee41e7042f38e27ebaf5c2762d90e75803364a7b00db
+PKG_SOURCE:=uClibc++-$(PKG_VERSION).tar.xz
+PKG_SOURCE_URL:=https://cxx.uclibc.org/src/
+PKG_HASH:=596fb9ed7295564ce4c70ae6076a18f92e72f70310d70c98520bbca85c77895a
 
 PKG_BUILD_DIR:=$(BUILD_DIR)/uClibc++-$(PKG_VERSION)
 PKG_BUILD_PARALLEL:=1
@@ -30,7 +30,7 @@ define Package/uclibcxx
   SECTION:=libs
   CATEGORY:=Libraries
   TITLE:=C++ library for embedded systems
-  URL:=http://cxx.uclibc.org/src/
+  URL:=https://cxx.uclibc.org/
 endef
 
 UCLIBC_TARGET_ARCH:=$(shell echo $(ARCH) | sed -e s'/-.*//' \
@@ -45,7 +45,8 @@ UCLIBC_TARGET_ARCH:=$(shell echo $(ARCH) | sed -e s'/-.*//' \
        -e 's/mipsel.*/mips/' \
 )
 
-TARGET_CFLAGS += $(FPIC)
+TARGET_CFLAGS += $(FPIC) -nostdinc++
+TARGET_LDFLAGS += -Wl,--gc-sections
 
 ifneq ($(CONFIG_CCACHE),)
 TARGET_CXX=$(TARGET_CXX_NOCACHE)
@@ -56,24 +57,15 @@ SSP_LIB=-lssp_nonshared
 endif
 
 MAKE_FLAGS:= \
-       TOPDIR="$(PKG_BUILD_DIR)/" \
        $(TARGET_CONFIGURE_OPTS) \
        CPU_CFLAGS="$(TARGET_CFLAGS)" \
-       CROSS="$(TARGET_CROSS)" \
-       LDFLAGS="-Wl,--warn-common -Wl,--warn-once -Wl,-z,combreloc -Wl,-z,defs $(TARGET_LDFLAGS)" \
-       CP="$(CP)" \
+       CROSS_COMPILE="$(TARGET_CROSS)" \
+       LDFLAGS="$(TARGET_LDFLAGS)" \
        GEN_LIBS="-lc $(LIBGCC_S) $(SSP_LIB)" \
-       GEN_CFLAGS="-std=gnu++98 -nostdinc++" \
        check_as_needed=
 
 # check_as_needed overrides dependency on libgcc_s
 
-define Build/Prepare
-       $(PKG_UNPACK)
-       $(SED) 's/\r$$$$//' $(PKG_BUILD_DIR)/include/unwind-cxx.h
-       $(Build/Patch)
-endef
-
 define Build/Configure
        if [ -f ./files/config.$(UCLIBC_TARGET_ARCH) ]; then \
                cp ./files/config.$(UCLIBC_TARGET_ARCH) $(PKG_BUILD_DIR)/.config; \
index 944e1a6..d76670e 100644 (file)
@@ -8,7 +8,7 @@
 UCLIBCXX_HAS_FLOATS=y
 # UCLIBCXX_HAS_LONG_DOUBLE is not set
 # UCLIBCXX_HAS_TLS is not set
-WARNINGS="-Wall"
+UCLIBCXX_WARNINGS=""
 BUILD_EXTRA_LIBRARIES=""
 HAVE_DOT_CONFIG=y
 
@@ -23,10 +23,10 @@ UCLIBCXX_SUPPORT_CIN=y
 UCLIBCXX_SUPPORT_COUT=y
 UCLIBCXX_SUPPORT_CERR=y
 UCLIBCXX_SUPPORT_CLOG=y
-UCLIBCXX_SUPPORT_WCIN=y
-UCLIBCXX_SUPPORT_WCOUT=y
-UCLIBCXX_SUPPORT_WCERR=y
-UCLIBCXX_SUPPORT_WCLOG=y
+# UCLIBCXX_SUPPORT_WCIN is not set
+# UCLIBCXX_SUPPORT_WCOUT is not set
+# UCLIBCXX_SUPPORT_WCERR is not set
+# UCLIBCXX_SUPPORT_WCLOG is not set
 
 #
 # STL and Code Expansion
diff --git a/package/libs/uclibc++/patches/001-no-ansi.patch b/package/libs/uclibc++/patches/001-no-ansi.patch
new file mode 100644 (file)
index 0000000..7ddbf52
--- /dev/null
@@ -0,0 +1,10 @@
+--- a/Rules.mak
++++ b/Rules.mak
+@@ -232,7 +232,6 @@ endif
+ GEN_CXXFLAGS:=-nostdinc++
+ GEN_CXXFLAGS+=$(if $(CXXFLAG_-fvisibility-inlines-hidden),-DGCC_HASCLASSVISIBILITY)
+ CXXFLAGS:=$(CFLAGS)
+-CFLAGS += -ansi
+ LIBGCC:=$(shell $(CC) -print-libgcc-file-name)
+ LIBGCC_DIR:=$(dir $(LIBGCC))
diff --git a/package/libs/uclibc++/patches/002-path_to_bash.patch b/package/libs/uclibc++/patches/002-path_to_bash.patch
deleted file mode 100644 (file)
index 26d88ee..0000000
+++ /dev/null
@@ -1,11 +0,0 @@
---- a/bin/Makefile
-+++ b/bin/Makefile
-@@ -13,7 +13,7 @@ install:
-       $(INSTALL) -m 755 $(WRAPPER) $(PREFIX)$(UCLIBCXX_RUNTIME_BINDIR)
- $(WRAPPER): Makefile
--      echo '#!/bin/sh' > $@
-+      echo '#!/usr/bin/env bash' > $@
-       echo '' >> $@
-       echo 'WRAPPER_INCLUDEDIR="$${WRAPPER_INCLUDEDIR:=-I$(UCLIBCXX_RUNTIME_INCLUDEDIR)}"' >> $@
-       echo 'WRAPPER_LIBDIR="$${WRAPPER_LIBDIR:=-L$(UCLIBCXX_RUNTIME_LIBDIR)}"' >> $@
diff --git a/package/libs/uclibc++/patches/002-quote-fix.patch b/package/libs/uclibc++/patches/002-quote-fix.patch
new file mode 100644 (file)
index 0000000..49e7ac3
--- /dev/null
@@ -0,0 +1,13 @@
+--- a/bin/Makefile.in
++++ b/bin/Makefile.in
+@@ -44,8 +44,8 @@ define do_wrapper
+       $(Q)echo '      WRAPPER_OPTIONS="$$WRAPPER_OPTIONS -nodefaultlibs $$WRAPPER_LIBDIR -l$(LNAME) $$WRAPPER_LIBS"' >> $@.tmp
+       $(Q)echo 'fi' >> $@.tmp
+       $(Q)echo '' >> $@.tmp
+-      $(Q)echo '[ -n "$$V" ] && [ $$V -gt 1 ] && echo $(CXX) $(GEN_CFLAGS) $(GEN_CXXFLAGS) $(EH_CXXFLAGS) $$WRAPPER_INCLUDEDIR "$$@" $$WRAPPER_OPTIONS' >> $@.tmp
+-      $(Q)echo 'exec $(CXX) $(GEN_CFLAGS) $(GEN_CXXFLAGS) $(EH_CXXFLAGS) $$WRAPPER_INCLUDEDIR "$$@" $$WRAPPER_OPTIONS' >> $@.tmp
++      $(Q)echo '[ -n "$$V" ] && [ $$V -gt 1 ] && echo $(CXX) $(GEN_CFLAGS) $(GEN_CXXFLAGS) $(EH_CXXFLAGS) $$WRAPPER_INCLUDEDIR $$@ $$WRAPPER_OPTIONS' >> $@.tmp
++      $(Q)echo 'exec $(CXX) $(GEN_CFLAGS) $(GEN_CXXFLAGS) $(EH_CXXFLAGS) $$WRAPPER_INCLUDEDIR $$@ $$WRAPPER_OPTIONS' >> $@.tmp
+       $(Q)echo '' >> $@.tmp
+       $(Q)chmod 0755 $@.tmp
+       $(Q)mv $@.tmp $@
diff --git a/package/libs/uclibc++/patches/003-no-fPIC.patch b/package/libs/uclibc++/patches/003-no-fPIC.patch
new file mode 100644 (file)
index 0000000..206a00d
--- /dev/null
@@ -0,0 +1,10 @@
+--- a/Rules.mak
++++ b/Rules.mak
+@@ -185,7 +185,6 @@ export UCLIBCXX_RUNTIME_PREFIX UCLIBCXX_RUNTIME_LIBDIR UCLIBCXX_RUNTIME_BINDIR U
+ WRAPPER = $(top_builddir)bin/g++-uc
+ OPTIMIZATION:=
+-PICFLAG:=-fPIC
+ # use '-Os' optimization if available, else use -O2, allow Config to override
+ $(eval $(call check-gcc-var,-Os))
diff --git a/package/libs/uclibc++/patches/004-no-pedantic.patch b/package/libs/uclibc++/patches/004-no-pedantic.patch
new file mode 100644 (file)
index 0000000..5128ca3
--- /dev/null
@@ -0,0 +1,13 @@
+--- a/Rules.mak
++++ b/Rules.mak
+@@ -200,10 +200,6 @@ $(eval $(call check-gxx-var,-std=gnu++14))
+ $(eval $(call check-gxx-var,-Wno-sized-deallocation))
+ $(eval $(call check-gxx-var,-Wno-tautological-compare))
+-# Add a bunch of extra pedantic annoyingly strict checks
+-XWARNINGS=$(call qstrip,$(UCLIBCXX_WARNINGS)) -Wno-trigraphs -pedantic
+-CPU_CFLAGS=$(call qstrip,$(CPU_CFLAGS-y))
+-
+ # Some nice CFLAGS to work with
+ GEN_CFLAGS:=-fno-builtin
+ CFLAGS:=$(XWARNINGS) $(CPU_CFLAGS)
diff --git a/package/libs/uclibc++/patches/006-eabi_fix.patch b/package/libs/uclibc++/patches/006-eabi_fix.patch
deleted file mode 100644 (file)
index 893c2d6..0000000
+++ /dev/null
@@ -1,38 +0,0 @@
---- a/include/typeinfo
-+++ b/include/typeinfo
-@@ -44,6 +44,7 @@ namespace __cxxabiv1
-   class __class_type_info;
- } // namespace __cxxabiv1
-+#ifndef __GXX_MERGED_TYPEINFO_NAMES
- #if !__GXX_WEAK__
-   // If weak symbols are not supported, typeinfo names are not merged.
-   #define __GXX_MERGED_TYPEINFO_NAMES 0
-@@ -51,6 +52,7 @@ namespace __cxxabiv1
-   // On platforms that support weak symbols, typeinfo names are merged.
-   #define __GXX_MERGED_TYPEINFO_NAMES 1
- #endif
-+#endif
- namespace std 
- {
---- a/include/unwind-cxx.h
-+++ b/include/unwind-cxx.h
-@@ -173,6 +173,7 @@ extern std::unexpected_handler __unexpec
- // This is the exception class we report -- "GNUCC++\0".
- const _Unwind_Exception_Class __gxx_exception_class
-+#ifndef __ARM_EABI_UNWINDER__
- = ((((((((_Unwind_Exception_Class) 'G' 
-        << 8 | (_Unwind_Exception_Class) 'N')
-       << 8 | (_Unwind_Exception_Class) 'U')
-@@ -181,6 +182,9 @@ const _Unwind_Exception_Class __gxx_exce
-      << 8 | (_Unwind_Exception_Class) '+')
-     << 8 | (_Unwind_Exception_Class) '+')
-    << 8 | (_Unwind_Exception_Class) '\0');
-+#else
-+= "GNUC++";
-+#endif
- // GNU C++ personality routine, Version 0.
- extern "C" _Unwind_Reason_Code __gxx_personality_v0
diff --git a/package/libs/uclibc++/patches/010-honor-ldflags.patch b/package/libs/uclibc++/patches/010-honor-ldflags.patch
deleted file mode 100644 (file)
index b1050cb..0000000
+++ /dev/null
@@ -1,23 +0,0 @@
---- a/src/Makefile
-+++ b/src/Makefile
-@@ -3,9 +3,9 @@ include $(TOPDIR)Rules.mak
- WR_CXX := WRAPPER_INCLUDEDIR=-I$(TOPDIR)include $(TOPDIR)bin/g++-uc
--LDFLAGS += -nodefaultlibs -shared -Wl,-soname,$(SHARED_MAJORNAME) $(BUILD_EXTRA_LIBRARIES)
-+EXTRA_LDFLAGS += -nodefaultlibs -shared -Wl,-soname,$(SHARED_MAJORNAME) $(BUILD_EXTRA_LIBRARIES)
- ifneq ($(DODEBUG),y)
--LDFLAGS += -Wl,-s
-+EXTRA_LDFLAGS += -Wl,-s
- endif
- SRCS =        $(wildcard *.cpp)
-@@ -60,7 +60,7 @@ $(LIBNAME).a: libgcc_eh libsupc $(EXOBJS
-       $(RANLIB) $@
- $(SHARED_FULLNAME): libgcc_eh libsupc $(EXOBJS)
--      $(CC) $(LDFLAGS) -o $@ $(EXOBJS) $(SUPOBJS) $(GCCOBJS) $(LIBS)
-+      $(CC) $(LDFLAGS) $(EXTRA_LDFLAGS) -o $@ $(EXOBJS) $(SUPOBJS) $(GCCOBJS) $(LIBS)
-       $(LN) $@ $(SHARED_MAJORNAME)
-       $(LN) $(SHARED_MAJORNAME) $(LIBNAME).so
diff --git a/package/libs/uclibc++/patches/020-template-fix.patch b/package/libs/uclibc++/patches/020-template-fix.patch
deleted file mode 100644 (file)
index f7cc09e..0000000
+++ /dev/null
@@ -1,22 +0,0 @@
---- a/include/ostream
-+++ b/include/ostream
-@@ -294,7 +294,7 @@ namespace std {
- #endif
- #endif
--      template <class charT,class traits = char_traits<charT> >
-+      template <class charT,class traits>
-               class _UCXXEXPORT basic_ostream<charT,traits>::sentry
-       {
-               bool ok;
---- a/include/istream
-+++ b/include/istream
-@@ -340,7 +340,7 @@ namespace std{
-       };
--      template <class charT,class traits = char_traits<charT> > class _UCXXEXPORT basic_istream<charT,traits>::sentry {
-+      template <class charT,class traits> class _UCXXEXPORT basic_istream<charT,traits>::sentry {
-               bool ok;
-       public:
-               explicit _UCXXEXPORT sentry(basic_istream<charT,traits>& os, bool noskipws = false){
diff --git a/package/libs/uclibc++/patches/030-memory_corruption_fix.patch b/package/libs/uclibc++/patches/030-memory_corruption_fix.patch
deleted file mode 100644 (file)
index e34efdb..0000000
+++ /dev/null
@@ -1,114 +0,0 @@
-From 1dc865b8bbb3911abc8ce53c7ae8a59dc90f6fc3 Mon Sep 17 00:00:00 2001
-From: Ivan Kold <pixus.ru@gmail.com>
-Date: Thu, 3 Mar 2016 12:56:30 -0800
-Subject: [PATCH] Fix throw statement causing memory corruption
-
-The __cxxabiv1::__cxa_throw in the GCC's libsupc++ expects
-sizeof(__cxa_refcounted_exception) bytes be allocated before
-exception object.
-uClibc++ allocates only sizeof(__cxa_exception) before an
-exception object.
-The __cxxabiv1::__cxa_throw writes in memory before allocated:
-// gcc-5.2.0/libstdc++-v3/libsupc++/eh_throw.cc:69
-__cxa_refcounted_exception *header
-  = __get_refcounted_exception_header_from_obj (obj);
-header->referenceCount = 1;
-
-Signed-off-by: Ivan Kold <pixus.ru@gmail.com>
----
- include/unwind-cxx.h | 34 +++++++++++++++++++++++++++++++++-
- src/eh_alloc.cpp     |  8 ++++----
- 2 files changed, 37 insertions(+), 5 deletions(-)
-
---- a/include/unwind-cxx.h
-+++ b/include/unwind-cxx.h
-@@ -1,5 +1,5 @@
- // -*- C++ -*- Exception handling and frame unwind runtime interface routines.
--// Copyright (C) 2001 Free Software Foundation, Inc.
-+// Copyright (C) 2001-2015 Free Software Foundation, Inc.
- //
- // This file is part of GCC.
- //
-@@ -13,6 +13,10 @@
- // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- // GNU General Public License for more details.
- //
-+// Under Section 7 of GPL version 3, you are granted additional
-+// permissions described in the GCC Runtime Library Exception, version
-+// 3.1, as published by the Free Software Foundation.
-+//
- // You should have received a copy of the GNU General Public License
- // along with GCC; see the file COPYING.  If not, write to
- // the Free Software Foundation, 59 Temple Place - Suite 330,
-@@ -40,6 +44,12 @@
- #include <cstddef>
- #include "unwind.h"
-+// Original unwind-cxx.h also includes bits/atomic_word.h which is CPU-specific, 
-+// but always defines _Atomic_word as typedef int .
-+// Only thing that differs is memory-barrier macroses.
-+typedef int _Atomic_word;
-+
-+
- #pragma GCC visibility push(default)
- namespace __cxxabiv1
-@@ -79,6 +89,13 @@ struct __cxa_exception
-   _Unwind_Exception unwindHeader;
- };
-+struct __cxa_refcounted_exception
-+{
-+  // Manage this header.
-+  _Atomic_word referenceCount;
-+  // __cxa_exception must be last, and no padding can be after it.
-+  __cxa_exception exc;
-+};
- // A dependent C++ exception object consists of a header, which is a wrapper
- // around an unwind object header with additional C++ specific information,
-@@ -210,6 +227,21 @@ __get_exception_header_from_ue (_Unwind_
-   return reinterpret_cast<__cxa_exception *>(exc + 1) - 1;
- }
-+// Acquire the C++ refcounted exception header from the C++ object.
-+static inline __cxa_refcounted_exception *
-+__get_refcounted_exception_header_from_obj (void *ptr)
-+{
-+  return reinterpret_cast<__cxa_refcounted_exception *>(ptr) - 1;
-+}
-+
-+// Acquire the C++ refcounted exception header from the generic exception
-+// header.
-+static inline __cxa_refcounted_exception *
-+__get_refcounted_exception_header_from_ue (_Unwind_Exception *exc)
-+{
-+  return reinterpret_cast<__cxa_refcounted_exception *>(exc + 1) - 1;
-+}
-+
- } /* namespace __cxxabiv1 */
- #pragma GCC visibility pop
---- a/src/eh_alloc.cpp
-+++ b/src/eh_alloc.cpp
-@@ -30,16 +30,16 @@ extern "C" void * __cxa_allocate_excepti
-       void *retval;
-       //The sizeof crap is required by Itanium ABI because we need to provide space for
-       //accounting information which is implementaion (gcc) specified
--      retval = malloc (thrown_size + sizeof(__cxa_exception));
-+      retval = malloc (thrown_size + sizeof(__cxa_refcounted_exception));
-       if (0 == retval){
-               std::terminate();
-       }
--      memset (retval, 0, sizeof(__cxa_exception));
--      return (void *)((unsigned char *)retval + sizeof(__cxa_exception));
-+      memset (retval, 0, sizeof(__cxa_refcounted_exception));
-+      return (void *)((unsigned char *)retval + sizeof(__cxa_refcounted_exception));
- }
- extern "C" void __cxa_free_exception(void *vptr) throw(){
--      free( (char *)(vptr) - sizeof(__cxa_exception) );
-+      free( (char *)(vptr) - sizeof(__cxa_refcounted_exception) );
- }
diff --git a/package/libs/uclibc++/patches/040-delete-c++14.patch b/package/libs/uclibc++/patches/040-delete-c++14.patch
deleted file mode 100644 (file)
index f48a78f..0000000
+++ /dev/null
@@ -1,20 +0,0 @@
---- a/src/del_op.cpp
-+++ b/src/del_op.cpp
-@@ -24,3 +24,7 @@
- _UCXXEXPORT void operator delete(void* ptr) throw(){
-       free(ptr);
- }
-+
-+_UCXXEXPORT void operator delete(void* ptr, size_t size) throw(){
-+      free(ptr);
-+}
---- a/src/del_opv.cpp
-+++ b/src/del_opv.cpp
-@@ -24,3 +24,7 @@
- _UCXXEXPORT void operator delete[](void * ptr) throw(){
-       free(ptr);
- }
-+
-+_UCXXEXPORT void operator delete[](void * ptr, size_t size) throw(){
-+      free(ptr);
-+}
diff --git a/package/libs/uclibc++/patches/050-Bugfix-erase-on-derived-__base_associative.patch b/package/libs/uclibc++/patches/050-Bugfix-erase-on-derived-__base_associative.patch
deleted file mode 100644 (file)
index 2ddb8a9..0000000
+++ /dev/null
@@ -1,40 +0,0 @@
-From 946b29e62927eadfc4e87f27b8d30e5974b78c4c Mon Sep 17 00:00:00 2001
-From: Ben Kelly <ben@benjii.net>
-Date: Mon, 6 Feb 2017 13:08:25 +0200
-Subject: [PATCH] Bugfix erase() on derived __base_associative
-
-When calling erase() on a containers derived from __base_associative
-(e.g. multimap) and providing a pair of iterators a segfault will
-occur.
-
-Example code to reproduce:
-
-       typedef std::multimap<int, int> testmap;
-       testmap t;
-       t.insert(std::pair<int, int>(1, 1));
-       t.insert(std::pair<int, int>(2, 1));
-       t.insert(std::pair<int, int>(3, 1));
-       t.erase(t.begin(), t.end());
-
-Signed-off-by: Ben Kelly <ben@benjii.net>
----
- include/associative_base | 3 +--
- 1 file changed, 1 insertion(+), 2 deletions(-)
-
-diff --git a/include/associative_base b/include/associative_base
-index 27ae0ef..be8b27f 100644
---- a/include/associative_base
-+++ b/include/associative_base
-@@ -200,8 +200,7 @@ public:
-       }
-       void erase(iterator first, iterator last){
-               while(first != last){
--                      backing.erase(first.base_iterator());
--                      ++first;
-+                      first = backing.erase(first.base_iterator());
-               }
-       }
--- 
-2.7.4
-