[PATCH 1/2] configure: store $IFS to $DEFAULT_IFS readonly variable

diff --git a/79/1c92d9fd7b8ebd376f401ce4423a45025e4c3c b/79/1c92d9fd7b8ebd376f401ce4423a45025e4c3c
new file mode 100644 (file)
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--- /dev/null
+++ b/79/1c92d9fd7b8ebd376f401ce4423a45025e4c3c
@@ -0,0 +1,93 @@
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+From: Tomi Ollila <tomi.ollila@iki.fi>\r
+To: notmuch@notmuchmail.org\r
+Subject: [PATCH 1/2] configure: store $IFS to $DEFAULT_IFS readonly variable\r
+Date: Wed, 14 Mar 2012 16:59:59 +0200\r
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+Cc: Tomi Ollila <tomi.ollila@iki.fi>\r
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+In the future, IFS value needs to be changed in a few places\r
+in configure -- and then restored. Store the original value\r
+to $DEFAULT_IFS for easy restoration.\r
+---\r
+ configure |    8 +++++---\r
+ 1 files changed, 5 insertions(+), 3 deletions(-)\r
+\r
+diff --git a/configure b/configure\r
+index ee0ae73..3b2b6b7 100755\r
+--- a/configure\r
++++ b/configure\r
+@@ -1,5 +1,8 @@\r
+ #! /bin/sh\r
+ \r
++# Store original IFS value so it can be changed (and restored) in many places.\r
++readonly DEFAULT_IFS=$IFS\r
++\r
+ srcdir=$(dirname "$0")\r
+ \r
+ # For a non-srcdir configure invocation (such as ../configure), create\r
+@@ -379,7 +382,6 @@ elif [ $uname = "Linux" ] ; then\r
+     # IFS=$(printf '\n')\r
+     #\r
+     # because the shell's command substitution deletes any trailing newlines.\r
+-    OLD_IFS=$IFS\r
+     IFS="\r
+ "\r
+     for path in $ldconfig_paths; do\r
+@@ -387,7 +389,7 @@ elif [ $uname = "Linux" ] ; then\r
+           libdir_in_ldconfig=1\r
+       fi\r
+     done\r
+-    IFS=$OLD_IFS\r
++    IFS=$DEFAULT_IFS\r
+     if [ "$libdir_in_ldconfig" = '0' ]; then\r
+       printf "No (will set RPATH)\n"\r
+     else\r
+@@ -536,7 +538,7 @@ done\r
+ printf "\n\t${WARN_CFLAGS}\n"\r
+ \r
+ rm -f minimal minimal.c\r
+-      \r
++\r
+ cat <<EOF\r
+ \r
+ All required packages were found. You may now run the following\r
+-- \r
+1.7.8.2\r
+\r