diff options
Diffstat (limited to 'c++')
| -rw-r--r-- | c++/examples/run-c++-ex.sh.in | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/c++/examples/run-c++-ex.sh.in b/c++/examples/run-c++-ex.sh.in index 4667878..d05b120 100644 --- a/c++/examples/run-c++-ex.sh.in +++ b/c++/examples/run-c++-ex.sh.in @@ -30,6 +30,29 @@ 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 +# $() won't clobber it. +# +prefix_relto_examplesdir=$( +prefix=@prefix@ +examplesdir=@examplesdir@ +if [ ${examplesdir##${prefix}/} != ${examplesdir} ]; then + echo $(echo ${examplesdir##${prefix}/} | \ + sed 's,[^/][^/]*,..,g') +else + echo $prefix +fi +) + # Where the tool is installed. # default is relative path to installed location of the tools prefix="${prefix:-../${prefix_relto_examplesdir}}" |