File U_0001-configure-add-disable-open-zfile-instead... of Package libXpm

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File U_0001-configure-add-disable-open-zfile-instead-of-requirin.patch of Package libXpm

From 4841039e5385f264d12757903894f47c64f59361 Mon Sep 17 00:00:00 2001
From: Alan Coopersmith <alan.coopersmith@oracle.com>
Date: Thu, 5 Jan 2023 15:42:36 -0800
Subject: [PATCH] configure: add --disable-open-zfile instead of requiring
 -DNO_ZPIPE

Documents the two compression options in the README, makes their
configure options reflect the interdependency of their implementation,
and makes the configure script report their configuration.

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
---
 README.md    | 15 +++++++++++++++
 configure.ac | 36 +++++++++++++++++++++++-------------
 2 files changed, 38 insertions(+), 13 deletions(-)

Index: libXpm-3.5.12/README.md
===================================================================
--- libXpm-3.5.12.orig/README.md
+++ libXpm-3.5.12/README.md
@@ -16,3 +16,18 @@ For patch submission instructions, see:
 
   https://www.x.org/wiki/Development/Documentation/SubmittingPatches
 
+------------------------------------------------------------------------------
+
+libXpm supports two optional features to handle compressed pixmap files.
+
+--enable-open-zfile makes libXpm recognize file names ending in .Z and .gz
+and open a pipe to the appropriate command to compress the file when writing
+and uncompress the file when reading. This is enabled by default on platforms
+other than MinGW and can be disabled by passing the --disable-open-zfile flag
+to the configure script.
+
+--enable-stat-zfile make libXpm search for a file name with .Z or .gz added
+if it can't find the file it was asked to open.  It relies on the
+--enable-open-zfile feature to open the file, and is enabled by default
+when --enable-open-zfile is enabled, and can be disabled by passing the
+--disable-stat-zfile flag to the configure script.
Index: libXpm-3.5.12/configure.ac
===================================================================
--- libXpm-3.5.12.orig/configure.ac
+++ libXpm-3.5.12/configure.ac
@@ -48,25 +48,35 @@ if test "x$USE_GETTEXT" = "xyes" ; then
 fi
 AM_CONDITIONAL(USE_GETTEXT, test "x$USE_GETTEXT" = "xyes")
 
+# Optional feature: When a filename ending in .Z or .gz is requested,
+# open a pipe to a newly forked compress/uncompress/gzip/gunzip command to
+# handle it.
+AC_MSG_CHECKING([whether to handle compressed pixmaps])
+case $host_os in
+        *mingw*)        zpipe_default="no" ;;
+        *)              zpipe_default="yes" ;;
+esac
+AC_ARG_ENABLE(open-zfile,
+        AS_HELP_STRING([--enable-open-zfile],
+                        [Search for files with .Z & .gz extensions automatically @<:@default=auto@:>@]),
+              [OPEN_ZFILE=$enableval], [OPEN_ZFILE=yes])
+AC_MSG_RESULT([$OPEN_ZFILE])
+if test x$OPEN_ZFILE = xno ; then
+        AC_DEFINE(NO_ZPIPE, 1, [Define to 1 to disable decompression via pipes])
+fi
+
 # Optional feature: When ___.xpm is requested, also look for ___.xpm.Z & .gz
 # Replaces ZFILEDEF = -DSTAT_ZFILE in old Imakefile
+AC_MSG_CHECKING([whether to search for compressed pixmaps])
 AC_ARG_ENABLE(stat-zfile,
-	AS_HELP_STRING([--enable-stat-zfile],
-			[Search for files with .Z & .gz extensions automatically @<:@default=yes@:>@]),
-              [STAT_ZFILE=$enableval], [STAT_ZFILE=yes])
+        AS_HELP_STRING([--enable-stat-zfile],
+                        [Search for files with .Z & .gz extensions automatically @<:@default=auto@:>@]),
+              [STAT_ZFILE=$enableval], [STAT_ZFILE=$OPEN_ZFILE])
+AC_MSG_RESULT([$STAT_ZFILE])
 if test x$STAT_ZFILE = xyes ; then
-	AC_DEFINE(STAT_ZFILE, 1, [Define to 1 to automatically look for files with .Z & .gz extensions])
+        AC_DEFINE(STAT_ZFILE, 1, [Define to 1 to automatically look for files with .Z & .gz extensions])
 fi
 
-
-case $host_os in
-	*mingw*)
-                AC_DEFINE(NO_ZPIPE, 1, [Define to 1 to disable decompression via pipes])
-	;;
-	*)
-	;;
-esac
-
 AC_CONFIG_FILES([Makefile
                  doc/Makefile
                  include/Makefile

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File U_0001-configure-add-disable-open-zfile-instead-of-requirin.patch of Package libXpm

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