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From 999005133c928c841e98600c00e12d4c05846c91 Mon Sep 17 00:00:00 2001
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From: Peter Hutterer <peter.hutterer@who-t.net>
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Date: Mon, 16 Jan 2023 19:44:52 +1000
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Subject: [PATCH libXpm 6/6] Use gzip -d instead of gunzip
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GNU gunzip [1] is a shell script that exec's `gzip -d`. Even if we call
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/usr/bin/gunzip with the correct built-in path, the actual gzip call
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will use whichever gzip it finds first, making our patch pointless.
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Fix this by explicitly calling gzip -d instead.
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[1] https://git.savannah.gnu.org/cgit/gzip.git/tree/gunzip.in
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Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
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---
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README.md | 2 +-
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configure.ac | 3 +--
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src/RdFToI.c | 2 +-
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3 files changed, 3 insertions(+), 4 deletions(-)
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diff --git a/README.md b/README.md
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index 0b1c886..d906954 100644
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--- a/README.md
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+++ b/README.md
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@@ -41,5 +41,5 @@ the first version found in the PATH used to run configure, and do not depend
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on the PATH environment variable set at runtime.
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To specify paths to be used for these commands instead of searching $PATH, pass
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-the XPM_PATH_COMPRESS, XPM_PATH_UNCOMPRESS, XPM_PATH_GZIP, and XPM_PATH_GUNZIP
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+the XPM_PATH_COMPRESS, XPM_PATH_UNCOMPRESS, and XPM_PATH_GZIP
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variables to the configure command.
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diff --git a/configure.ac b/configure.ac
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index 4fc370d..5535998 100644
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--- a/configure.ac
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+++ b/configure.ac
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@@ -58,7 +58,7 @@ AC_DEFINE_UNQUOTED([$1], ["$$1"], [Path to $2])
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]) dnl End of AC_DEFUN([XPM_PATH_PROG]...
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# Optional feature: When a filename ending in .Z or .gz is requested,
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-# open a pipe to a newly forked compress/uncompress/gzip/gunzip command to
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+# open a pipe to a newly forked compress/uncompress/gzip command to
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# handle it.
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AC_MSG_CHECKING([whether to handle compressed pixmaps])
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case $host_os in
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@@ -76,7 +76,6 @@ else
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XPM_PATH_PROG([XPM_PATH_COMPRESS], [compress])
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XPM_PATH_PROG([XPM_PATH_UNCOMPRESS], [uncompress])
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XPM_PATH_PROG([XPM_PATH_GZIP], [gzip])
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- XPM_PATH_PROG([XPM_PATH_GUNZIP], [gunzip])
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AC_CHECK_FUNCS([closefrom close_range], [break])
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fi
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diff --git a/src/RdFToI.c b/src/RdFToI.c
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index a91d337..141c485 100644
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--- a/src/RdFToI.c
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+++ b/src/RdFToI.c
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@@ -251,7 +251,7 @@ OpenReadFile(
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else if ( ext && !strcmp(ext, ".gz") )
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{
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mdata->type = XPMPIPE;
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- mdata->stream.file = xpmPipeThrough(fd, XPM_PATH_GUNZIP, "-qc", "r");
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+ mdata->stream.file = xpmPipeThrough(fd, XPM_PATH_GZIP, "-dqc", "r");
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}
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else
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#endif /* z-files */
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--
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2.39.0
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