compile.txt

/usr/local/djgpp/bin/i586-pc-msdosdjgpp-gcc -c -o src/main.o src/main.c -DHAVE_STDBOOL_H=1 -Ivendor/allegro-4.2.2-djgpp-xc/include
/usr/local/djgpp/bin/i586-pc-msdosdjgpp-gcc -o dist/main.exe src/main.o -Lvendor/allegro-4.2.2-djgpp-xc/lib/djgpp -lalleg
vendor/allegro-4.2.2-djgpp-xc/lib/djgpp/liballeg.a(allegro.o):allegro.c:(.text+0x30): multiple definition of `set_window_title'
src/main.o:main.c:(.text+0x1e): first defined here
vendor/allegro-4.2.2-djgpp-xc/lib/djgpp/liballeg.a(allegro.o):allegro.c:(.text+0x50): multiple definition of `desktop_color_depth'
src/main.o:main.c:(.text+0x46): first defined here
vendor/allegro-4.2.2-djgpp-xc/lib/djgpp/liballeg.a(allegro.o):allegro.c:(.text+0x70): multiple definition of `get_desktop_resolution'
src/main.o:main.c:(.text+0x6b): first defined here

[... about 18 thousand lines]

vendor/allegro-4.2.2-djgpp-xc/lib/djgpp/liballeg.a(grip.o):grip.c:(.text+0x1720): multiple definition of `yield_timeslice'
src/main.o:main.c:(.text+0x1a53): first defined here
vendor/allegro-4.2.2-djgpp-xc/lib/djgpp/liballeg.a(grip.o):grip.c:(.text+0x1740): multiple definition of `_set_color'
src/main.o:main.c:(.text+0x1a72): first defined here
/usr/local/djgpp/lib/gcc/i586-pc-msdosdjgpp/5.2.0/../../../../i586-pc-msdosdjgpp/bin/ld: src/main.o: bad reloc address 0x20 in section `.eh_frame'
collect2: error: ld returned 1 exit status
make: *** [dist/main.exe] Error 1

How did you resolve this issue?

was it adding -fgnu89-inline to gcc flags?