From 93c3fc7fe071893bbfed553f771ae22c1676319e Mon Sep 17 00:00:00 2001
From: Manuel Frischknecht <manuel.frischknecht@gmail.com>
Date: Fri, 1 Dec 2023 19:54:52 +0100
Subject: [PATCH] gawkextlib.haru: fix compilation errors due to typos fixed in
 `libharu`

These two typos (SCUARE instead of SQUARE and TRIAL instead of TRAIL)
have been fixed in libharu 2.4.4 [1] [2], but the source code for
gawkextensions still uses the old names to this day [3].

[1]: https://github.com/libharu/libharu/issues/94
[2]: https://github.com/libharu/libharu/commit/88271b73c68c521a49a15e3555ef00395aa40810
[3]: https://sourceforge.net/p/gawkextlib/code/ci/f952fe2159ae3f712f4b230a15e8a03fa090e678/tree/haru/pdf.h#l89
---
 ...fix-typos-corrected-in-libharu-2.4.4.patch | 62 +++++++++++++++++++
 pkgs/tools/text/gawk/gawkextlib.nix           | 16 +++--
 2 files changed, 72 insertions(+), 6 deletions(-)
 create mode 100644 pkgs/tools/text/gawk/fix-typos-corrected-in-libharu-2.4.4.patch

diff --git a/pkgs/tools/text/gawk/fix-typos-corrected-in-libharu-2.4.4.patch b/pkgs/tools/text/gawk/fix-typos-corrected-in-libharu-2.4.4.patch
new file mode 100644
index 000000000000..6b4a416a718c
--- /dev/null
+++ b/pkgs/tools/text/gawk/fix-typos-corrected-in-libharu-2.4.4.patch
@@ -0,0 +1,62 @@
+diff --git a/haru/pdf.c b/haru/pdf.c
+index d16f573..3129427 100644
+--- a/haru/pdf.c
++++ b/haru/pdf.c
+@@ -105,7 +105,7 @@ static awk_scalar_t HPDF_CS_PATTERN_node;
+ /*  LineCap */
+ static awk_scalar_t HPDF_BUTT_END_node;
+ static awk_scalar_t HPDF_ROUND_END_node;
+-static awk_scalar_t HPDF_PROJECTING_SCUARE_END_node;
++static awk_scalar_t HPDF_PROJECTING_SQUARE_END_node;
+ 
+ /*  _LineJoin */
+ static awk_scalar_t HPDF_MITER_JOIN_node;
+@@ -248,7 +248,7 @@ static awk_scalar_t HPDF_ENCODER_UNKNOWN_node;
+ /* ByteType */
+ static awk_scalar_t HPDF_BYTE_TYPE_SINGLE_node;
+ static awk_scalar_t HPDF_BYTE_TYPE_LEAD_node;
+-static awk_scalar_t HPDF_BYTE_TYPE_TRIAL_node;
++static awk_scalar_t HPDF_BYTE_TYPE_TRAIL_node;
+ static awk_scalar_t HPDF_BYTE_TYPE_UNKNOWN_node;
+ 
+ /* TextAlignment */
+@@ -308,7 +308,7 @@ static const struct varinit varinit[] = {
+ 	ENTRY(HPDF_CS_PATTERN, 1)
+ 	ENTRY(HPDF_BUTT_END, 1)
+ 	ENTRY(HPDF_ROUND_END, 1)
+-	ENTRY(HPDF_PROJECTING_SCUARE_END, 1)
++	ENTRY(HPDF_PROJECTING_SQUARE_END, 1)
+ 	ENTRY(HPDF_MITER_JOIN, 1)
+ 	ENTRY(HPDF_ROUND_JOIN, 1)
+ 	ENTRY(HPDF_BEVEL_JOIN, 1)
+@@ -417,7 +417,7 @@ static const struct varinit varinit[] = {
+ 	ENTRY(HPDF_ENCODER_UNKNOWN, 1)
+ 	ENTRY(HPDF_BYTE_TYPE_SINGLE, 1)
+ 	ENTRY(HPDF_BYTE_TYPE_LEAD, 1)
+-	ENTRY(HPDF_BYTE_TYPE_TRIAL, 1)
++	ENTRY(HPDF_BYTE_TYPE_TRAIL, 1)
+ 	ENTRY(HPDF_BYTE_TYPE_UNKNOWN, 1)
+ 	ENTRY(HPDF_TALIGN_LEFT, 1)
+ 	ENTRY(HPDF_TALIGN_RIGHT, 1)
+diff --git a/haru/pdf.h b/haru/pdf.h
+index a4ef39a..07cf168 100644
+--- a/haru/pdf.h
++++ b/haru/pdf.h
+@@ -86,7 +86,7 @@
+ 
+ #define DEFAULT_HPDF_BUTT_END HPDF_BUTT_END
+ #define DEFAULT_HPDF_ROUND_END HPDF_ROUND_END
+-#define DEFAULT_HPDF_PROJECTING_SCUARE_END HPDF_PROJECTING_SCUARE_END
++#define DEFAULT_HPDF_PROJECTING_SQUARE_END HPDF_PROJECTING_SQUARE_END
+ 
+ /*  _LineJoin */
+ #define DEFAULT_HPDF_MITER_JOIN HPDF_MITER_JOIN
+@@ -229,7 +229,7 @@
+ /* ByteType */
+ #define DEFAULT_HPDF_BYTE_TYPE_SINGLE HPDF_BYTE_TYPE_SINGLE
+ #define DEFAULT_HPDF_BYTE_TYPE_LEAD HPDF_BYTE_TYPE_LEAD
+-#define DEFAULT_HPDF_BYTE_TYPE_TRIAL HPDF_BYTE_TYPE_TRIAL 
++#define DEFAULT_HPDF_BYTE_TYPE_TRAIL HPDF_BYTE_TYPE_TRAIL
+ #define DEFAULT_HPDF_BYTE_TYPE_UNKNOWN HPDF_BYTE_TYPE_UNKNOWN 
+ 
+ /* TextAlignment */
diff --git a/pkgs/tools/text/gawk/gawkextlib.nix b/pkgs/tools/text/gawk/gawkextlib.nix
index 4a796dfe8591..be50b93a7e2f 100644
--- a/pkgs/tools/text/gawk/gawkextlib.nix
+++ b/pkgs/tools/text/gawk/gawkextlib.nix
@@ -85,12 +85,16 @@ let
       name = "gd";
       extraBuildInputs = [ gd ];
     };
-    # Build has been broken: https://github.com/NixOS/nixpkgs/issues/191072
-    # haru = buildExtension {
-    #   inherit gawkextlib;
-    #   name = "haru";
-    #   extraBuildInputs = [ libharu ];
-    # };
+    haru = buildExtension {
+      inherit gawkextlib;
+      name = "haru";
+      extraBuildInputs = [ libharu ];
+      patches = [
+        # Renames references to two identifiers with typos that libharu fixed in 2.4.4
+        # https://github.com/libharu/libharu/commit/88271b73c68c521a49a15e3555ef00395aa40810
+        ./fix-typos-corrected-in-libharu-2.4.4.patch
+      ];
+    };
     json = buildExtension {
       inherit gawkextlib;
       name = "json";