I have two Vala versions: valac-0.10, valac-0.12; but no valac symlink. So some configure scripts can't find valac by default. Reproducible: Always Steps to Reproduce: 1. # ls -lh /usr/bin/vala* lrwxrwxrwx 1 root root 10 Фев 24 15:20 /usr/bin/vala-0.10 -> valac-0.10 lrwxrwxrwx 1 root root 10 Апр 7 21:03 /usr/bin/vala-0.12 -> valac-0.12 -rwxr-xr-x 1 root root 48K Фев 24 15:20 /usr/bin/valac-0.10 -rwxr-xr-x 1 root root 40K Апр 7 21:02 /usr/bin/valac-0.12 -rwxr-xr-x 1 root root 946 Фев 24 15:20 /usr/bin/vala-gen-introspect-0.10 -rwxr-xr-x 1 root root 946 Апр 7 21:02 /usr/bin/vala-gen-introspect-0.12 2. AM_PROG_VALAC in configure.ac: checking for valac... no configure: WARNING: No Vala compiler found. You will not be able to compile .vala source files.
*** This bug has been marked as a duplicate of bug 338067 ***