Bump buidlroot version to 2018.02.6

bsp/buildroot/package/pcre2/0001-fix-heapframe-alignment.patch

@@ -0,0 +1,49 @@
+src/pcre2_intmodedep.h: fix alignment of fields in struct heapframe
+
+pcre2_intmodedep.h has a check to verify that the size of the struct
+heapframe is a multiple of 4 bytes. On most architectures this works
+fine, but not on m68k. Indeed, when building the 16-bit variant of
+pcre2, the heapframe structure contains:
+
+ PCRE2_UCHAR occu[2];
+ PCRE2_SPTR  eptr;
+
+Where PCRE2_UCHAR is a 16-bit data type, and PCRE2_SPTR is a
+pointer. The occu[] array starts at byte 0x32, so not aligned on a
+32-bit boundary. With 2 x 16-bit, the occur[] array ends at byte 0x36.
+
+Now, on most architectures, the alignment required for a pointer will
+make the eptr field start at 0x38 (on 32 bit architectures). However,
+on m68k, it is fine to have a pointer aligned only on a 16-bit
+boundary, and the eptr pointer will be at offset 0x36.
+
+This doesn't cause a problem per-se, but breaks the check that
+heapframe should be a multiple of 4 bytes.
+
+To fix this, we make sure eptr is aligned by introducing an unused
+field of 16 bits after the occu[] array (in the 16-bit variant) or
+after the occu[] array (in the 32-bit variant). These choices have
+been made to keep the structure layout unchanged.
+
+Fixes the following build failure on m68k:
+
+src/pcre2_intmodedep.h:818:14: error: size of array 'check_heapframe_size' is negative
+ typedef char check_heapframe_size[
+              ^~~~~~~~~~~~~~~~~~~~
+
+Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+Upstream: https://bugs.exim.org/show_bug.cgi?id=2247
+
+Index: src/pcre2_intmodedep.h
+===================================================================
+--- a/src/pcre2_intmodedep.h	(revision 923)
++++ b/src/pcre2_intmodedep.h	(working copy)
+@@ -797,7 +797,9 @@
+   PCRE2_UCHAR occu[6];       /* Used for other case code units */
+ #elif PCRE2_CODE_UNIT_WIDTH == 16
+   PCRE2_UCHAR occu[2];       /* Used for other case code units */
++  uint8_t     unused[2];     /* Ensure 32 bit alignment */
+ #else
++  uint8_t     unused[2];     /* Ensure 32 bit alignment */
+   PCRE2_UCHAR occu[1];       /* Used for other case code units */
+ #endif

bsp/buildroot/package/pcre2/Config.in

@@ -0,0 +1,26 @@
+
+config BR2_PACKAGE_PCRE2
+	bool "pcre2"
+	help
+	  Perl Compatible Regular Expressions. By default, only the
+	  8-bits libpcre2 is built. To get the 16-bits and/or 32-bits
+	  variants libpcre2-16/libpcre2-32, use the package
+	  sub-options.
+
+	  http://www.pcre.org/
+
+if BR2_PACKAGE_PCRE2
+
+config BR2_PACKAGE_PCRE2_16
+	bool "16-bit pcre2"
+	help
+	  This option builds the 16-bits pcre2 library, i.e
+	  'libpcre2-16'
+
+config BR2_PACKAGE_PCRE2_32
+	bool "32-bit pcre2"
+	help
+	  This option builds the 32-bits pcre2 library, i.e
+	  'libpcre2-32'
+
+endif

bsp/buildroot/package/pcre2/pcre2.hash

@@ -0,0 +1,2 @@
+# Locally calculated after checking pgp signature at https://ftp.pcre.org/pub/pcre/pcre2-10.30.tar.bz2.sig
+sha256 90bd41c605d30e3745771eb81928d779f158081a51b2f314bbcc1f73de5773db  pcre2-10.30.tar.bz2

bsp/buildroot/package/pcre2/pcre2.mk

@@ -0,0 +1,25 @@
+################################################################################
+#
+# pcre2
+#
+################################################################################
+
+PCRE2_VERSION = 10.30
+PCRE2_SITE = https://ftp.pcre.org/pub/pcre
+PCRE2_SOURCE = pcre2-$(PCRE2_VERSION).tar.bz2
+PCRE2_LICENSE = BSD-3-Clause
+PCRE2_LICENSE_FILES = LICENCE
+PCRE2_INSTALL_STAGING = YES
+PCRE2_CONFIG_SCRIPTS = pcre2-config
+
+PCRE2_CONF_OPTS += --enable-pcre2-8
+PCRE2_CONF_OPTS += $(if $(BR2_PACKAGE_PCRE2_16),--enable-pcre2-16,--disable-pcre2-16)
+PCRE2_CONF_OPTS += $(if $(BR2_PACKAGE_PCRE2_32),--enable-pcre2-32,--disable-pcre2-32)
+
+# disable fork usage if not available
+ifeq ($(BR2_USE_MMU),)
+PCRE2_CONF_OPTS += --disable-pcre2grep-callout
+endif
+
+$(eval $(autotools-package))
+$(eval $(host-autotools-package))