Automatically build SWIG from source

This change allows Bazel to fetch and build SWIG rather than getting it
from the system. This change also improves the i/o performance of the
SWIG build, makes it hermetically sealed, and ensures tf_py_wrap_cc()
can function correctly across Bazel repositories.

CC: #4983
Change: 136783531

1 files changed, 80 insertions, 0 deletions

diff --git a/third_party/pcre.BUILD b/third_party/pcre.BUILD
new file mode 100644
index 0000000000..d9ef246672
--- /dev/null
+++ b/third_party/pcre.BUILD
@@ -0,0 +1,80 @@
+licenses(["notice"])  # BSD
+
+exports_files(["LICENSE"])
+
+cc_library(
+    name = "pcre",
+    srcs = [
+        "pcre_byte_order.c",
+        "pcre_chartables.c",
+        "pcre_compile.c",
+        "pcre_config.c",
+        "pcre_dfa_exec.c",
+        "pcre_exec.c",
+        "pcre_fullinfo.c",
+        "pcre_get.c",
+        "pcre_globals.c",
+        "pcre_internal.h",
+        "pcre_jit_compile.c",
+        "pcre_maketables.c",
+        "pcre_newline.c",
+        "pcre_ord2utf8.c",
+        "pcre_refcount.c",
+        "pcre_string_utils.c",
+        "pcre_study.c",
+        "pcre_tables.c",
+        "pcre_ucd.c",
+        "pcre_valid_utf8.c",
+        "pcre_version.c",
+        "pcre_xclass.c",
+        "ucp.h",
+    ],
+    hdrs = [
+        "pcre.h",
+        "pcreposix.h",
+    ],
+    copts = [
+        "-DHAVE_BCOPY=1",
+        "-DHAVE_INTTYPES_H=1",
+        "-DHAVE_MEMMOVE=1",
+        "-DHAVE_STDINT_H=1",
+        "-DHAVE_STRERROR=1",
+        "-DHAVE_SYS_STAT_H=1",
+        "-DHAVE_SYS_TYPES_H=1",
+        "-DHAVE_UNISTD_H=1",
+        "-DLINK_SIZE=2",
+        "-DMATCH_LIMIT=10000000",
+        "-DMATCH_LIMIT_RECURSION=1000",
+        "-DMAX_NAME_COUNT=10000",
+        "-DMAX_NAME_SIZE=32",
+        "-DNEWLINE=10",
+        "-DNO_RECURSE",
+        "-DPARENS_NEST_LIMIT=50",
+        "-DPCRE_STATIC=1",
+        "-DPOSIX_MALLOC_THRESHOLD=10",
+        "-DSTDC_HEADERS=1",
+        "-DSUPPORT_UCP",
+        "-DSUPPORT_UTF",
+    ],
+    includes = ["."],
+    visibility = ["@swig//:__pkg__"],  # Please use RE2
+    alwayslink = 1,
+)
+
+genrule(
+    name = "pcre_h",
+    srcs = ["pcre.h.in"],
+    outs = ["pcre.h"],
+    cmd = "sed -e s/@PCRE_MAJOR@/8/" +
+          "    -e s/@PCRE_MINOR@/39/" +
+          "    -e s/@PCRE_PRERELEASE@//" +
+          "    -e s/@PCRE_DATE@/redacted/" +
+          "    $< >$@",
+)
+
+genrule(
+    name = "pcre_chartables_c",
+    srcs = ["pcre_chartables.c.dist"],
+    outs = ["pcre_chartables.c"],
+    cmd = "cp $< $@",
+)