diff options
Diffstat (limited to 'm4/fp_find_root.m4')
| -rw-r--r-- | m4/fp_find_root.m4 | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/m4/fp_find_root.m4 b/m4/fp_find_root.m4 new file mode 100644 index 0000000000..37099984ea --- /dev/null +++ b/m4/fp_find_root.m4 @@ -0,0 +1,37 @@ +# -------------------------------------------------------------- +# Calculate absolute path to build tree +# -------------------------------------------------------------- + +AC_DEFUN([FP_FIND_ROOT],[ +AC_MSG_CHECKING(for path to top of build tree) + if test "$windows" = YES + then + dnl Make sure this is a c:/foo/bar (mixed) style path. Some parts of + dnl the build system might depend on it (such as the sed expression + dnl `"s|$(TOP)/||i"` in addCFileDeps in rules/build-dependencies.mk). + hardtop=$(cygpath -m "$(pwd)") + else + hardtop=$(pwd) + fi + + dnl Remove common automounter nonsense + hardtop=`echo $hardtop | sed 's|^/tmp_mnt.*\(/local/.*\)$|\1|' | sed 's|^/tmp_mnt/|/|'` + + if ! test -d "$hardtop"; then + AC_MSG_ERROR([cannot determine current directory]) + fi + + dnl We don't support building in directories with spaces. + case "$hardtop" in + *' '*) + AC_MSG_ERROR([ + The build system does not support building in a directory + containing space characters. + Suggestion: move the build tree somewhere else.]) + ;; + esac + + AC_SUBST(hardtop) + + AC_MSG_RESULT($hardtop) +]) |