diff --git a/package/ipsec-tools/Makefile b/package/ipsec-tools/Makefile
index 08c6c920233746863f6aadf0f285ad0d0fe276c8..0f24ae12eecdf64d94ade2b64fab88622c50bb2b 100644
--- a/package/ipsec-tools/Makefile
+++ b/package/ipsec-tools/Makefile
@@ -42,8 +42,6 @@ CONFIGURE_ARGS += \
 	--enable-adminport \
 	--enable-ipv6
 
-TARGET_CFLAGS += -Dbcopy=memmove -Dindex\(s,c\)=strchr\(s,c\)
-
 define Build/Configure
 	(cd $(PKG_BUILD_DIR); touch \
 		configure.ac \
diff --git a/package/keynote/Makefile b/package/keynote/Makefile
index 56bbeb0e5849842765c73295e63c6cdb4832795a..5b27257b4a74ddb3831210a5fea861f381f3d3af 100644
--- a/package/keynote/Makefile
+++ b/package/keynote/Makefile
@@ -40,8 +40,6 @@ CONFIGURE_ARGS += \
 MAKE_FLAGS += \
 	CFLAGS="$(TARGET_CFLAGS)"
 
-TARGET_CFLAGS += -Dbcopy=memmove -Dindex\(s,c\)=strchr\(s,c\)
-
 define Build/InstallDev
 	mkdir -p $(1)/usr/include/keynote
 	$(CP) $(PKG_BUILD_DIR)/{assertion,header,keynote,signature}.h $(1)/usr/include/keynote/
diff --git a/toolchain/uClibc/config/arm b/toolchain/uClibc/config/arm
index c409daea08beab6c9326be12ca6da453da37351d..ee1e47a6dcec37ed838ff36835207602d17229bb 100644
--- a/toolchain/uClibc/config/arm
+++ b/toolchain/uClibc/config/arm
@@ -94,7 +94,7 @@ UCLIBC_DYNAMIC_ATEXIT=y
 HAS_SHADOW=y
 COMPAT_ATEXIT=y
 # UCLIBC_SUSV3_LEGACY is not set
-# UCLIBC_SUSV3_LEGACY_MACROS is not set
+UCLIBC_SUSV3_LEGACY_MACROS=y
 # UCLIBC_HAS_SHADOW is not set
 # UCLIBC_HAS_PROGRAM_INVOCATION_NAME is not set
 UCLIBC_HAS___PROGNAME=y
diff --git a/toolchain/uClibc/config/armeb b/toolchain/uClibc/config/armeb
index baea691f89ff29393718d4d39eaa61a5c4e33299..367a07a89945d6b143508cc75fe9ea8270173d72 100644
--- a/toolchain/uClibc/config/armeb
+++ b/toolchain/uClibc/config/armeb
@@ -95,7 +95,7 @@ UCLIBC_DYNAMIC_ATEXIT=y
 HAS_SHADOW=y
 COMPAT_ATEXIT=y
 # UCLIBC_SUSV3_LEGACY is not set
-# UCLIBC_SUSV3_LEGACY_MACROS is not set
+UCLIBC_SUSV3_LEGACY_MACROS=y
 # UCLIBC_HAS_SHADOW is not set
 # UCLIBC_HAS_PROGRAM_INVOCATION_NAME is not set
 UCLIBC_HAS___PROGNAME=y
diff --git a/toolchain/uClibc/config/avr32 b/toolchain/uClibc/config/avr32
index 821ad7c8f9a06082e49b916909ca136fe5009814..dc55e802a535a36b631396db33168f6e6a816c1f 100644
--- a/toolchain/uClibc/config/avr32
+++ b/toolchain/uClibc/config/avr32
@@ -79,7 +79,7 @@ UCLIBC_DYNAMIC_ATEXIT=y
 HAS_SHADOW=y
 COMPAT_ATEXIT=y
 # UCLIBC_SUSV3_LEGACY is not set
-# UCLIBC_SUSV3_LEGACY_MACROS is not set
+UCLIBC_SUSV3_LEGACY_MACROS=y
 # UCLIBC_HAS_SHADOW is not set
 # UCLIBC_HAS_PROGRAM_INVOCATION_NAME is not set
 UCLIBC_HAS___PROGNAME=y
diff --git a/toolchain/uClibc/config/i386 b/toolchain/uClibc/config/i386
index ad4342f57b5cf2168403421683bfb5882d43ccf6..edc72b5cb48fbff9433f1474bb2a0493b122d816 100644
--- a/toolchain/uClibc/config/i386
+++ b/toolchain/uClibc/config/i386
@@ -95,7 +95,7 @@ MALLOC_GLIBC_COMPAT=y
 UCLIBC_DYNAMIC_ATEXIT=y
 COMPAT_ATEXIT=y
 # UCLIBC_SUSV3_LEGACY is not set
-# UCLIBC_SUSV3_LEGACY_MACROS is not set
+UCLIBC_SUSV3_LEGACY_MACROS=y
 # UCLIBC_HAS_SHADOW is not set
 # UCLIBC_HAS_PROGRAM_INVOCATION_NAME is not set
 UCLIBC_HAS___PROGNAME=y
diff --git a/toolchain/uClibc/config/i686 b/toolchain/uClibc/config/i686
index d0e99310a667e308b8b3cb162eaf649dcb98d2b8..546d2eed49c5c42d48911530476aa0f679b11b9c 100644
--- a/toolchain/uClibc/config/i686
+++ b/toolchain/uClibc/config/i686
@@ -95,7 +95,7 @@ MALLOC_GLIBC_COMPAT=y
 UCLIBC_DYNAMIC_ATEXIT=y
 COMPAT_ATEXIT=y
 # UCLIBC_SUSV3_LEGACY is not set
-# UCLIBC_SUSV3_LEGACY_MACROS is not set
+UCLIBC_SUSV3_LEGACY_MACROS=y
 # UCLIBC_HAS_SHADOW is not set
 # UCLIBC_HAS_PROGRAM_INVOCATION_NAME is not set
 UCLIBC_HAS___PROGNAME=y
diff --git a/toolchain/uClibc/config/mips b/toolchain/uClibc/config/mips
index cf819f678506ef0263b480d0e5bef3905763e971..a783f8bad5367d631b14916a65e86af5786b49b6 100644
--- a/toolchain/uClibc/config/mips
+++ b/toolchain/uClibc/config/mips
@@ -92,7 +92,7 @@ UCLIBC_DYNAMIC_ATEXIT=y
 HAS_SHADOW=y
 COMPAT_ATEXIT=y
 # UCLIBC_SUSV3_LEGACY is not set
-# UCLIBC_SUSV3_LEGACY_MACROS is not set
+UCLIBC_SUSV3_LEGACY_MACROS=y
 # UCLIBC_HAS_SHADOW is not set
 # UCLIBC_HAS_PROGRAM_INVOCATION_NAME is not set
 UCLIBC_HAS___PROGNAME=y
diff --git a/toolchain/uClibc/config/mipsel b/toolchain/uClibc/config/mipsel
index b8efcff2645f091ed3bd17e04a92fb0996c3266e..11940ffdd6be1ac80bef027545be8c453bce7341 100644
--- a/toolchain/uClibc/config/mipsel
+++ b/toolchain/uClibc/config/mipsel
@@ -92,7 +92,7 @@ UCLIBC_DYNAMIC_ATEXIT=y
 HAS_SHADOW=y
 COMPAT_ATEXIT=y
 # UCLIBC_SUSV3_LEGACY is not set
-# UCLIBC_SUSV3_LEGACY_MACROS is not set
+UCLIBC_SUSV3_LEGACY_MACROS=y
 # UCLIBC_HAS_SHADOW is not set
 # UCLIBC_HAS_PROGRAM_INVOCATION_NAME is not set
 UCLIBC_HAS___PROGNAME=y
diff --git a/toolchain/uClibc/config/powerpc b/toolchain/uClibc/config/powerpc
index 739daf6705c7b58a403777ee6033505d643c57f7..7451c56e6cdc1bb517853f8698f9e70943e53382 100644
--- a/toolchain/uClibc/config/powerpc
+++ b/toolchain/uClibc/config/powerpc
@@ -81,7 +81,7 @@ UCLIBC_DYNAMIC_ATEXIT=y
 HAS_SHADOW=y
 COMPAT_ATEXIT=y
 # UCLIBC_SUSV3_LEGACY is not set
-# UCLIBC_SUSV3_LEGACY_MACROS is not set
+UCLIBC_SUSV3_LEGACY_MACROS=y
 # UCLIBC_HAS_SHADOW is not set
 # UCLIBC_HAS_PROGRAM_INVOCATION_NAME is not set
 UCLIBC_HAS___PROGNAME=y