inital checkin: libpcre

This the initial commit of libpcre, the Perl Compatible Regular
Expression library (http://www.pcre.org/)

The files in the dist/ directory correspond to pcre version
8.36 and are unmodified.

  $ sha256sum pcre-8.36.tar.bz2
  ef833457de0c40e82f573e34528f43a751ff20257ad0e86d272ed5637eb845bb  pcre-8.36.tar.bz2

The top level directory contains 3 symlinks pointing into dist,
and one Android.mk file.

The code compiles, and I've tested a small program to verify that
the functionality is correct. However, no extensive testing has
been done at this point.

Bug: 17682157
Change-Id: Ie304aaf09cc37eb8920b40c3a3f7db61a0fda205
diff --git a/dist/pcre-config.in b/dist/pcre-config.in
new file mode 100644
index 0000000..ac06a33
--- /dev/null
+++ b/dist/pcre-config.in
@@ -0,0 +1,133 @@
+#!/bin/sh
+
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+exec_prefix_set=no
+
+cflags="[--cflags]"
+
+if test @enable_cpp@ = yes ; then
+  libs="[--libs-cpp]"
+else
+  libs=
+fi
+
+if test @enable_pcre16@ = yes ; then
+  libs="[--libs16] $libs"
+fi
+
+if test @enable_pcre32@ = yes ; then
+  libs="[--libs32] $libs"
+fi
+
+if test @enable_pcre8@ = yes ; then
+  libs="[--libs] [--libs-posix] $libs"
+  cflags="$cflags [--cflags-posix]"
+fi
+
+usage="Usage: pcre-config [--prefix] [--exec-prefix] [--version] $libs $cflags"
+
+if test $# -eq 0; then
+      echo "${usage}" 1>&2
+      exit 1
+fi
+
+libR=
+case `uname -s` in
+  *SunOS*)
+  libR=" -R@libdir@"
+  ;;
+  *BSD*)
+  libR=" -Wl,-R@libdir@"
+  ;;
+esac
+
+libS=
+if test @libdir@ != /usr/lib ; then
+  libS=-L@libdir@
+fi
+
+while test $# -gt 0; do
+  case "$1" in
+  -*=*) optarg=`echo "$1" | sed 's/[-_a-zA-Z0-9]*=//'` ;;
+  *) optarg= ;;
+  esac
+
+  case $1 in
+    --prefix=*)
+      prefix=$optarg
+      if test $exec_prefix_set = no ; then
+        exec_prefix=$optarg
+      fi
+      ;;
+    --prefix)
+      echo $prefix
+      ;;
+    --exec-prefix=*)
+      exec_prefix=$optarg
+      exec_prefix_set=yes
+      ;;
+    --exec-prefix)
+      echo $exec_prefix
+      ;;
+    --version)
+      echo @PACKAGE_VERSION@
+      ;;
+    --cflags)
+      if test @includedir@ != /usr/include ; then
+        includes=-I@includedir@
+      fi
+      echo $includes @PCRE_STATIC_CFLAG@
+      ;;
+    --cflags-posix)
+      if test @enable_pcre8@ = yes ; then
+        if test @includedir@ != /usr/include ; then
+          includes=-I@includedir@
+        fi
+        echo $includes @PCRE_STATIC_CFLAG@
+      else
+        echo "${usage}" 1>&2
+      fi
+      ;;
+    --libs-posix)
+      if test @enable_pcre8@ = yes ; then
+        echo $libS$libR -lpcreposix -lpcre
+      else
+        echo "${usage}" 1>&2
+      fi
+      ;;
+    --libs)
+      if test @enable_pcre8@ = yes ; then
+        echo $libS$libR -lpcre
+      else
+        echo "${usage}" 1>&2
+      fi
+      ;;
+    --libs16)
+      if test @enable_pcre16@ = yes ; then
+        echo $libS$libR -lpcre16
+      else
+        echo "${usage}" 1>&2
+      fi
+      ;;
+    --libs32)
+      if test @enable_pcre32@ = yes ; then
+        echo $libS$libR -lpcre32
+      else
+        echo "${usage}" 1>&2
+      fi
+      ;;
+    --libs-cpp)
+      if test @enable_cpp@ = yes ; then
+        echo $libS$libR -lpcrecpp -lpcre
+      else
+        echo "${usage}" 1>&2
+      fi
+      ;;
+    *)
+      echo "${usage}" 1>&2
+      exit 1
+      ;;
+  esac
+  shift
+done