gnu: zlib: Update to 1.2.13.

* gnu/packages/compression.scm (zlib): Update to 1.2.13.
[source]: Remove patches.
* gnu/packages/patches/zlib-cc.patch,
gnu/packages/patches/zlib-correct-crc32-inputs.patch: Remove files.
* gnu/local.mk (dist_patch_DATA): Remove them.

gnu/local.mk

@@ -1999,8 +1999,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/xterm-370-explicit-xcursor.patch		\
   %D%/packages/patches/xygrib-fix-finding-data.patch		\
   %D%/packages/patches/yggdrasil-extra-config.patch	\
-  %D%/packages/patches/zlib-cc.patch				\
-  %D%/packages/patches/zlib-correct-crc32-inputs.patch		\
   %D%/packages/patches/zig-use-system-paths.patch
 
 MISC_DISTRO_FILES =				\

gnu/packages/compression.scm

@@ -100,7 +100,7 @@ (define-module (gnu packages compression)
 (define-public zlib
   (package
     (name "zlib")
-    (version "1.2.12")
+    (version "1.2.13")
     (source
      (origin
        (method url-fetch)
@@ -108,11 +108,9 @@ (define-public zlib
                                  version ".tar.gz")
                   (string-append "mirror://sourceforge/libpng/zlib/"
                                  version "/zlib-" version ".tar.gz")))
-       (patches (search-patches "zlib-cc.patch"
-                                "zlib-correct-crc32-inputs.patch"))
        (sha256
         (base32
-         "1n9na4fq4wagw1nzsfjr6wyly960jfa94460ncbf6p1fac44i14i"))))
+         "0c5b8vw40dy178xlpddw65q9gf1h2186jcc3p4swinwggbllv8mk"))))
     (build-system gnu-build-system)
     (outputs '("out" "static"))
     (arguments

gnu/packages/patches/zlib-cc.patch

@@ -1,21 +0,0 @@
-Fix configure issue that discarded provided CC definition.
-
-Taken from upstream:
-
-  https://github.com/madler/zlib/commit/05796d3d8d5546cf1b4dfe2cd72ab746afae505d
-
-diff --git a/configure b/configure
-index 52ff4a04e..3fa3e8618 100755
---- a/configure
-+++ b/configure
-@@ -174,7 +174,10 @@ if test -z "$CC"; then
-   else
-     cc=${CROSS_PREFIX}cc
-   fi
-+else
-+  cc=${CC}
- fi
-+
- cflags=${CFLAGS-"-O3"}
- # to force the asm version use: CFLAGS="-O3 -DASMV" ./configure
- case "$cc" in

gnu/packages/patches/zlib-correct-crc32-inputs.patch

@@ -1,44 +0,0 @@
-Correct incorrect inputs provided to the CRC functions.
-
-Taken from upstream:
-
-  https://github.com/madler/zlib/commit/ec3df00224d4b396e2ac6586ab5d25f673caa4c2
-
-diff --git a/crc32.c b/crc32.c
-index a1bdce5c2..451887bc7 100644
---- a/crc32.c
-+++ b/crc32.c
-@@ -630,7 +630,7 @@ unsigned long ZEXPORT crc32_z(crc, buf, len)
- #endif /* DYNAMIC_CRC_TABLE */
- 
-     /* Pre-condition the CRC */
--    crc ^= 0xffffffff;
-+    crc = (~crc) & 0xffffffff;
- 
-     /* Compute the CRC up to a word boundary. */
-     while (len && ((z_size_t)buf & 7) != 0) {
-@@ -749,7 +749,7 @@ unsigned long ZEXPORT crc32_z(crc, buf, len)
- #endif /* DYNAMIC_CRC_TABLE */
- 
-     /* Pre-condition the CRC */
--    crc ^= 0xffffffff;
-+    crc = (~crc) & 0xffffffff;
- 
- #ifdef W
- 
-@@ -1077,7 +1077,7 @@ uLong ZEXPORT crc32_combine64(crc1, crc2, len2)
- #ifdef DYNAMIC_CRC_TABLE
-     once(&made, make_crc_table);
- #endif /* DYNAMIC_CRC_TABLE */
--    return multmodp(x2nmodp(len2, 3), crc1) ^ crc2;
-+    return multmodp(x2nmodp(len2, 3), crc1) ^ (crc2 & 0xffffffff);
- }
- 
- /* ========================================================================= */
-@@ -1112,5 +1112,5 @@ uLong crc32_combine_op(crc1, crc2, op)
-     uLong crc2;
-     uLong op;
- {
--    return multmodp(op, crc1) ^ crc2;
-+    return multmodp(op, crc1) ^ (crc2 & 0xffffffff);
- }