Add 'nixpkgs/' from commit 'abf060725d7614bd3b9f96764262dfbc2f9c2199'

git-subtree-dir: nixpkgs
git-subtree-mainline: 4e31070265257dc67d120c27e0f75c2344fdfa9a
git-subtree-split: abf060725d7614bd3b9f96764262dfbc2f9c2199

2 files changed, 83 insertions, 0 deletions

diff --git a/nixpkgs/pkgs/development/libraries/pcre/default.nix b/nixpkgs/pkgs/development/libraries/pcre/default.nix
new file mode 100644
index 000000000000..f9bd4ae91b46
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/pcre/default.nix
@@ -0,0 +1,67 @@
+{ stdenv, fetchurl
+, pcre, windows ? null
+, variant ? null
+}:
+
+with stdenv.lib;
+
+assert elem variant [ null "cpp" "pcre16" "pcre32" ];
+
+let
+  version = "8.42";
+  pname = if (variant == null) then "pcre"
+    else  if (variant == "cpp") then "pcre-cpp"
+    else  variant;
+
+in stdenv.mkDerivation rec {
+  name = "${pname}-${version}";
+
+  src = fetchurl {
+    url = "https://ftp.pcre.org/pub/pcre/pcre-${version}.tar.bz2";
+    sha256 = "00ckpzlgyr16bnqx8fawa3afjgqxw5yxgs2l081vw23qi1y4pl1c";
+  };
+
+  outputs = [ "bin" "dev" "out" "doc" "man" ];
+
+  configureFlags = optional (!stdenv.hostPlatform.isRiscV) "--enable-jit" ++ [
+    "--enable-unicode-properties"
+    "--disable-cpp"
+  ]
+    ++ optional (variant != null) "--enable-${variant}";
+
+  buildInputs = optional (stdenv.hostPlatform.libc == "msvcrt") windows.mingw_w64_pthreads;
+
+  # https://bugs.exim.org/show_bug.cgi?id=2173
+  patches = [ ./stacksize-detection.patch ];
+
+  preCheck = ''
+    patchShebangs RunGrepTest
+  '';
+
+  doCheck = !(with stdenv.hostPlatform; isCygwin || isFreeBSD) && stdenv.hostPlatform == stdenv.buildPlatform;
+    # XXX: test failure on Cygwin
+    # we are running out of stack on both freeBSDs on Hydra
+
+  postFixup = ''
+    moveToOutput bin/pcre-config "$dev"
+  ''
+    + optionalString (variant != null) ''
+    ln -sf -t "$out/lib/" '${pcre.out}'/lib/libpcre{,posix}.{so.*.*.*,*dylib}
+  '';
+
+  meta = {
+    homepage = http://www.pcre.org/;
+    description = "A library for Perl Compatible Regular Expressions";
+    license = stdenv.lib.licenses.bsd3;
+
+    longDescription = ''
+      The PCRE library is a set of functions that implement regular
+      expression pattern matching using the same syntax and semantics as
+      Perl 5. PCRE has its own native API, as well as a set of wrapper
+      functions that correspond to the POSIX regular expression API. The
+      PCRE library is free, even for building proprietary software.
+    '';
+
+    platforms = platforms.all;
+  };
+}
diff --git a/nixpkgs/pkgs/development/libraries/pcre/stacksize-detection.patch b/nixpkgs/pkgs/development/libraries/pcre/stacksize-detection.patch
new file mode 100644
index 000000000000..4bc97069b1e2
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/pcre/stacksize-detection.patch
@@ -0,0 +1,16 @@
+diff --git a/pcre_exec.c b/pcre_exec.c
+--- a/pcre_exec.c
++++ b/pcre_exec.c
+@@ -509,6 +509,12 @@
+                  (e.g. stopped by repeated call or recursion limit)
+ */
+ 
++#ifdef __GNUC__
++static int
++match(REGISTER PCRE_PUCHAR eptr, REGISTER const pcre_uchar *ecode,
++  PCRE_PUCHAR mstart, int offset_top, match_data *md, eptrblock *eptrb,
++  unsigned int rdepth) __attribute__((noinline,noclone));
++#endif
+ static int
+ match(REGISTER PCRE_PUCHAR eptr, REGISTER const pcre_uchar *ecode,
+   PCRE_PUCHAR mstart, int offset_top, match_data *md, eptrblock *eptrb,