libpcre: fix the name collision with libc

fixes [YOCTO #721] [YOCTO #722]

[sgw: added patch comment, bump PR, and changed BUGID -> YOCTO]
(From OE-Core rev: 6a4cb991ea473a84c620b33fbb82b5ae860971a3)

Signed-off-by: Qing He <qing.he@intel.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2 files changed, 43 insertions, 2 deletions

diff --git a/meta/recipes-support/libpcre/files/fix-pcre-name-collision.patch b/meta/recipes-support/libpcre/files/fix-pcre-name-collision.patch
new file mode 100644
index 0000000000..6548353121
--- /dev/null
+++ b/meta/recipes-support/libpcre/files/fix-pcre-name-collision.patch
@@ -0,0 +1,40 @@
+
+This patch address a namespace collision with libc.
+
+Although there is no "#include <regex.h>" in the source file, at
+runtime, it's unintentionally linked to the libc version, the regcomp of
+libc is called instead the pcre one using pcre's data structure...
+that looks like a disaster.
+
+Can patch is from Debian (and Ubuntu 11.04alpha has it also).
+
+[sgw: added patch comment]
+Signed-off-by: Qing He <qing.he@intel.com>
+Signed-off-by: Saul Wold <sgw@linux.intel.com>
+
+--- a/pcreposix.h       2010-05-17 00:17:23.000000000 +0800
++++ b/pcreposix.h       2009-01-15 04:32:17.000000000 +0800
+@@ -133,14 +130,19 @@
+ 
+ /* The functions */
+ 
+-PCREPOSIX_EXP_DECL int regcomp(regex_t *, const char *, int);
+-PCREPOSIX_EXP_DECL int regexec(const regex_t *, const char *, size_t,
++PCREPOSIX_EXP_DECL int pcreposix_regcomp(regex_t *, const char *, int);
++PCREPOSIX_EXP_DECL int pcreposix_regexec(const regex_t *, const char *, size_t,
+                      regmatch_t *, int);
+-PCREPOSIX_EXP_DECL size_t regerror(int, const regex_t *, char *, size_t);
+-PCREPOSIX_EXP_DECL void regfree(regex_t *);
++PCREPOSIX_EXP_DECL size_t pcreposix_regerror(int, const regex_t *, char *, size_t);
++PCREPOSIX_EXP_DECL void pcreposix_regfree(regex_t *);
+ 
+ #ifdef __cplusplus
+ }   /* extern "C" */
+ #endif
+ 
++#define regcomp pcreposix_regcomp
++#define regexec pcreposix_regexec
++#define regerror pcreposix_regerror
++#define regfree pcreposix_regfree
++
+ #endif /* End of pcreposix.h */
diff --git a/meta/recipes-support/libpcre/libpcre_8.10.bb b/meta/recipes-support/libpcre/libpcre_8.10.bb
index db89c89e26..2e174933ca 100644
--- a/meta/recipes-support/libpcre/libpcre_8.10.bb
+++ b/meta/recipes-support/libpcre/libpcre_8.10.bb
@@ -5,11 +5,12 @@ provides a POSIX calling interface to PCRE; the regular expressions \
 themselves still follow Perl syntax and semantics. The header file for \
 the POSIX-style functions is called pcreposix.h."
 SECTION = "devel"
-PR = "r4"
+PR = "r6"
 LICENSE = "BSD"
 LIC_FILES_CHKSUM = "file://LICENCE;md5=77f9b14fe707d0376d89bc162e6c54ff"
 SRC_URI = "${SOURCEFORGE_MIRROR}/pcre/pcre-${PV}.tar.bz2 \
-           file://pcre-cross.patch;patch=1"
+           file://pcre-cross.patch;patch=1 \
+           file://fix-pcre-name-collision.patch"
 
 SRC_URI[md5sum] = "780867a700e9d4e4b9cb47aa5453e4b2"
 SRC_URI[sha256sum] = "7ac4e016f6bad8c7d990e6de9bce58c04ff5dd8838be0c5ada0afad1d6a07480"