I'm attempting to build WSPR 4.0 on a Raspberry Pi-2 but Make is failing when it tries to generate Manpages. The error message is as follows:
Generating Manpages
--------------------
manpages/fmtave.1.txt
/bin/bash: line 2: --doctype: command not found
manpages/fmtest.1.txt
/bin/bash: line 2: --doctype: command not found
manpages/wsprcode.1.txt
/bin/bash: line 2: --doctype: command not found
manpages/fcal.1.txt
/bin/bash: line 2: --doctype: command not found
manpages/wspr.1.txt
/bin/bash: line 2: --doctype: command not found
manpages/fmeasure.1.txt
/bin/bash: line 2: --doctype: command not found
manpages/wspr0.1.txt
/bin/bash: line 2: --doctype: command not found
Makefile:185: recipe for target 'manp' failed
make: *** [manp] Error 127

Any ideas? Mike