duck.ai ==================== User prompt 1 of 1 - 4/26/2026, 2:52:12 PM: llama 4 scout. i'm trying to build fastaci.c on termux. what's wrong with my makefile? $ cat makefile; make 2>&1 | head -n 16 CFLAGS=-Iinc fastica: $(patsubst %.c,%.o,$(wildcard src/*.c)) libfastica.a $(LD) $^ -o $@ libfastica.a: $(patsubst %.c,%.o,$(wildcard lib/*.c)) $(AR) cru $@ $^ %.o: %.c makefile clean: rm fastica libfastica.a */*.o cc -Iinc -c -o src/ICAMain.o src/ICAMain.c cc -Iinc -c -o src/ParameterInput.o src/ParameterInput.c cc -Iinc -c -o src/Sources.o src/Sources.c cc -Iinc -c -o lib/AlgorithmFunctions.o lib/AlgorithmFunctions.c cc -Iinc -c -o lib/ExportingData.o lib/ExportingData.c cc -Iinc -c -o lib/Functions.o lib/Functions.c cc -Iinc -c -o lib/MatrixOps.o lib/MatrixOps.c cc -Iinc -c -o lib/Memory.o lib/Memory.c cc -Iinc -c -o lib/Setup.o lib/Setup.c ar cru libfastica.a lib/AlgorithmFunctions.o lib/ExportingData.o lib/Functions.o lib/MatrixOps.o lib/Memory.o lib/Setup.o ld src/ICAMain.o src/ParameterInput.o src/Sources.o libfastica.a -o fastica ld: error: undefined symbol: time
referenced by ICAMain.c src/ICAMain.o:(main)
ld: error: undefined symbol: srand Llama 4 Scout: The issue you're encountering is due to the linker (`ld`) being unable to find the definitions for the `time` and `srand` functions. These functions are part of the C standard library. The problem lies in the fact that you're not linking against the C standard library. You need to add `-lc` to your linker flags. However, in your Makefile, you're not specifying any linker flags. You can fix this by adding `LDFLAGS` and `LDLIBS` variables. Here's an updated version of your Makefile: ```makefile CFLAGS=-Iinc LDFLAGS= LDLIBS=-lc fastica: $(patsubst %.c,%.o,$(wildcard src/*.c)) libfastica.a $(LD) $(LDFLAGS) $^ $(LDLIBS) -o $@ libfastica.a: $(patsubst %.c,%.o,$(wildcard lib/*.c)) $(AR) cru $@ $^ %.o: %.c makefile $(CC) $(CFLAGS) -c $< -o $@ clean: rm fastica libfastica.a */*.o ``` In this updated Makefile: * I've added `LDFLAGS` and `LDLIBS` variables. * I've replaced `$(LD)` with `$(CC)` in the `%.o: %.c makefile` rule, as `$(CC)` is the conventional variable for the C compiler. * I've added `$(LDLIBS)` to the linker command. With these changes, your Makefile should now correctly link against the C standard library, and the `time` and `srand` functions should be found. https://ar.anyone.tech/83o-z7lJHarImXQL_KRmK-7YGIF48XK_oYnPfvawMzE#45dqUqu9w... https://ar.anyone.tech/uG2rxEPzH_GKs5hTeTHChr4YQaowSmKZN3_YNJByWFs I am not affiliated with https://ar.anyone.tech .