I don't know if this is the right place to ask. If it's not, I apologize I'd like to build guile-commonmark ( https://github.com/OrangeShark/guile-commonmark/ ) on Fedora 28 I'd like to build it against guile 2.2.2 On Fedora 28 x86_64 there are 2 versions of Guile Guile 2.0.14 and Guile 2.2.2 Guile 2.0.14 is in /usr/bin/guile Guile 2.2.2 is in /usr/bin/guile2.2 this is what happens ... configure: checking for guile 2.2 configure: found guile 2.2 checking for guile... /usr/bin/guile configure: error: found development files for Guile 2.2, but /usr/bin/guile has effective version 2.0 I'm afraid of removing guile 2.0.14 because it seems that an awful lot of stuff depends on it How can I build guile-commonmark against guile 2.2.2 ? Is this a task for the package author ? Or can I instruct the build system somehow about which guile to use ? Thanks in advance _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx https://lists.gnu.org/mailman/listinfo/autoconf