Guile 2.0.11 has mkstemp.c in lib/, from Gnulib, and it also has its own private version in libguile/. This causes link failures on systems, such as MinGW, that lack mkstemp in their system libraries:
CCLD libguile-2.0.la ../lib/.libs/libgnu.a(mkstemp.o): In function `mkstemp': d:\gnu\guile-2.0.11\lib/mkstemp.c:48: multiple definition of `mkstemp' .libs/libguile_2.0_la-mkstemp.o:d:\gnu\guile-2.0.11\libguile/mkstemp.c:68: first defined here collect2.exe: error: ld returned 1 exit status Makefile:2242: recipe for target `libguile-2.0.la' failed make[3]: *** [libguile-2.0.la] Error 1 make[3]: Leaving directory `/d/gnu/guile-2.0.11/libguile' Makefile:2162: recipe for target `all' failed I think the solution is simply remove mkstemp.c from libguile/, and all its traces from the configury that causes its dependency to be added to libguile/Makefile. Not sure how to do the latter, though.