I was trying to take advantage of make's library lookup to force a local copy of the lib source to build if it can't find one already installed when I came across the following.
The Makefile below (assuming two source files foo.cpp and main.exe.cpp) forces main.exe to relink on every run main.exe: -lfoo -lfoo: libfoo.a(foo.o) ; Relevant debug info below No need to remake target '-lfoo'; using VPATH name 'libfoo.a'. Finished prerequisites of target file 'main.exe'. Prerequisite 'main.exe.cpp' is older than target 'main.exe'. Prerequisite 'libfoo.a' of target 'main.exe' does not exist. Must remake target 'main.exe' It's kind of strange that make seems to determine that the lib doesn't need remaking but can't then find it, but the manual only mentions when "-l" is a prerequisite so are they simply not supported when used as targets on their own like this? The following works main.exe: -lfoo -lfoo libfoo.a: libfoo.a(foo.o) ; although make will always prefer the local copy of the lib. _______________________________________________ Help-make mailing list Help-make@gnu.org https://lists.gnu.org/mailman/listinfo/help-make
