diff options
| -rw-r--r-- | examples/run-c-ex.sh.in | 27 |
1 files changed, 25 insertions, 2 deletions
diff --git a/examples/run-c-ex.sh.in b/examples/run-c-ex.sh.in index 3648706..238b665 100644 --- a/examples/run-c-ex.sh.in +++ b/examples/run-c-ex.sh.in @@ -28,10 +28,33 @@ # Initializations 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@" |