X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/c6554334704090e9c8aa81fa34140da7b5fd9ae6..7b6f3bd52dc20f14fe0e73859e4d63e5668bc97c:/src/scripts/reversion

diff --git a/src/scripts/reversion b/src/scripts/reversion
index 32a867f25..c4618868e 100755
--- a/src/scripts/reversion
+++ b/src/scripts/reversion
@@ -2,6 +2,25 @@
 
 # Update Exim's version header file.
 
+# Compatibility gross-ness for non-POSIX systems
+if [ -z "$EXIM_REVERSION_ADJUSTED" ]
+then
+  SHELL=/bin/sh
+  EXIM_REVERSION_ADJUSTED=yes
+  export SHELL EXIM_REVERSION_ADJUSTED
+  # Solaris:
+  if [ -x /usr/xpg4/bin/sh ]
+  then
+    PATH="/usr/xpg4/bin:$PATH"
+    SHELL=/usr/xpg4/bin/sh
+    export PATH SHELL
+  fi
+  # Irix:
+  _XPG=1 ; export _XPG
+  #
+  exec "$SHELL" "$0" "$@"
+fi
+
 # Read version information that was generated by a previous run of
 # this script, or during the release process.
 
@@ -13,7 +32,7 @@ fi
 
 # If this tree is a git working directory, use that to get version information.
 
-if [ -e ../../.git ] || [ "$1" = "release" ]
+if [ -d ../../.git ] || [ "$1" = "release" ]
 then
 	# Modify the output of git describe into separate parts for
 	# the name "exim" and the release and variant versions.
@@ -33,7 +52,7 @@ fi
 # create your own version.sh as part of your release process, or you
 # can modify EXIM_VARIANT_VERSION at this point in this script.
 
-case $EXIM_RELEASE_VERSION in
+case "$EXIM_RELEASE_VERSION" in
 '')	echo "*** Your copy of Exim lacks any version information."
 	exit 1
 esac