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authorDavid Young <dyoung@hdfgroup.org>2019-11-05 21:13:47 (GMT)
committerDavid Young <dyoung@hdfgroup.org>2019-11-05 21:13:47 (GMT)
commit0b721858e46a317c370a24115032d5be41688f67 (patch)
tree5a8f3b9100dac84f430c13888ba92bddf8677dd2 /hl/examples
parent1b01b6d60b515db4c45786151e192b70aba27597 (diff)
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Make these scripts relocatable again: derive a relative path for the
original installation prefix from the examples prefix. Use that relative path to locate the current installation prefix, always. Fall back to an absolute installation prefix if the relative path cannot be derived.
Diffstat (limited to 'hl/examples')
-rw-r--r--hl/examples/run-hlc-ex.sh.in25
1 files changed, 24 insertions, 1 deletions
diff --git a/hl/examples/run-hlc-ex.sh.in b/hl/examples/run-hlc-ex.sh.in
index 1404fa4..ceb77dd 100644
--- a/hl/examples/run-hlc-ex.sh.in
+++ b/hl/examples/run-hlc-ex.sh.in
@@ -29,9 +29,32 @@
EXIT_SUCCESS=0
EXIT_FAILURE=1
+#
+# Try to derive the path to the installation $prefix established
+# by ./configure relative to the examples directory established by
+# ./configure. If successful, set `prefix_relto_examplesdir` to the
+# relative path. Otherwise, set `prefix_relto_examplesdir` to the
+# absolute installation $prefix.
+#
+# This script uses the value of `prefix` in the user's environment, if
+# it is set, below. The content of $() is evaluated in a sub-shell, so
+# if `prefix` is set in the user's environment, the shell statements in
+# $() won't clobbered it.
+#
+prefix_relto_examplesdir=$(
+prefix=@prefix@
+examplesdir=@examplesdir@
+if [ ${examplesdir##${prefix}/} != ${examplesdir} ]; then
+ echo $(echo ${examplesdir##${prefix}/} | \
+ sed -E 's,[^/]+,..,g')
+else
+ echo $prefix
+fi
+)
+
# Where the tool is installed.
# default is relative path to installed location of the tools
-prefix="${prefix:-@prefix@}"
+prefix="${prefix:-../../${prefix_relto_examplesdir}}"
PARALLEL=@PARALLEL@ # Am I in parallel mode?
AR="@AR@"
RANLIB="@RANLIB@"