FreeBSD build error

[devosalain]

I have lua54 installed, ie

/usr/local/bin/lua54
/usr/local/bin/luac54
/usr/local/include/lua54/lauxlib.h
/usr/local/include/lua54/lua.h
/usr/local/include/lua54/lua.hpp
/usr/local/include/lua54/luaconf.h
/usr/local/include/lua54/lualib.h
/usr/local/lib/liblua-5.4.a
/usr/local/lib/liblua-5.4.so

gmake returns,

gmake[1]: Entering directory '/usr/home/x/test/moonfltk/src'
gmake[1]: lua: No such file or directory
c++ -O2 -Wall -Wextra -DCOMPAT53_PREFIX=moonfltk_compat_ -DLUAVER=5.3 -DUSE_GL=1 -DUSE_IMAGES=1 -DBEGIN_FLTK_INCLUDE='_Pragma("GCC diagnostic push") _Pragma("GCC diagnostic ignored \"-Wunused-parameter\"")' -DEND_FLTK_INCLUDE='_Pragma("GCC diagnostic pop")' -DLINUX -fpic -I/usr/include -I/usr/include/lua5.3 -I/usr/local/include -I/usr/local/include -D_THREAD_SAFE -pthread -I/usr/local/include/freetype2 -I/usr/local/include/libpng16 -O2 -pipe -fno-lto -O2 -pipe -march=ivybridge -fstack-protector-strong -isystem /usr/local/include -fno-strict-aliasing -fno-lto -O2 -pipe -isystem /usr/local/include -fvisibility-inlines-hidden -I/usr/local/include -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_THREAD_SAFE -D_REENTRANT   -c -o additional.o additional.cc
In file included from additional.cc:26:
In file included from ./internal.h:37:
./moonfltk.h:33:10: fatal error: 'lua.hpp' file not found
#include <lua.hpp>
         ^~~~~~~~~
1 error generated.
gmake[1]: *** [<builtin>: additional.o] Error 1
gmake[1]: Leaving directory '/usr/home/x/test/moonfltk/src'
gmake: *** [Makefile:5: build] Error 2

[stetre]

The problem is that the Makefile doesn't expect the installation directory of the header files to be named like that. It could be fixed in different ways, for example:

• by adding the option -I/usr/local/include/lua54 to the INCDIR variable in src/Makefile (line 42), or
• by using the CPLUS_INCLUDE_PATH environment variable to add the path, or
• by installing the headers in /usr/local/include or in /usr/local/include/lua5.4 (or creating soft links).

[devosalain]

Adding -I/usr/local/include/lua54 the Makefile & copying moonfltk.so to ./examples/fltk worked.