This issue has been reported upstream, with a patch.
https://fossil-scm.org/forum/forumpost/8700a21fc2
Index: tools/makemake.tcl
==================================================================
--- tools/makemake.tcl
+++ tools/makemake.tcl
@@ -546,17 +546,20 @@
writeln "\t\$(XTCC) -o \$(OBJDIR)/$s.o -c \$(OBJDIR)/${s}_.c\n"
writeln "\$(OBJDIR)/$s.h:\t\$(OBJDIR)/headers\n"
}
writeln "\$(SQLITE3_OBJ):\t\$(SQLITE3_SRC)"
+writeln "\t-mkdir -p \$(OBJDIR)"
writeln "\t\$(XTCC) \$(SQLITE_OPTIONS) \$(SQLITE_CFLAGS) \$(SEE_FLAGS) \\"
writeln "\t\t-c \$(SQLITE3_SRC) -o \$@"
writeln "\$(OBJDIR)/shell.o:\t\$(SQLITE3_SHELL_SRC)
\$(SRCDIR_extsrc)/sqlite3.h"
+writeln "\t-mkdir -p \$(OBJDIR)"
writeln "\t\$(XTCC) \$(SHELL_OPTIONS) \$(SHELL_CFLAGS) \$(SEE_FLAGS)
\$(LINENOISE_DEF.\$(USE_LINENOISE)) -c \$(SQLITE3_SHELL_SRC) -o \$@\n"
writeln "\$(OBJDIR)/linenoise.o:\t\$(SRCDIR_extsrc)/linenoise.c
\$(SRCDIR_extsrc)/linenoise.h"
+writeln "\t-mkdir -p \$(OBJDIR)"
writeln "\t\$(XTCC) -c \$(SRCDIR_extsrc)/linenoise.c -o \$@\n"
