I'm trying to compile a C program (pcap_retrans.c) that uses also another module (cbuffer.c), using the SDK.
I created the following Makefile to compile the program (before the final make that will build the .ipk file) just so I could see if the program has no errors. Thus, I'm trying to achieve the same result as with gcc -o pcap pcap_retrans.c -lpcap cbuffer.c.
path = /home/foo/Desktop/sdk/openwrt-sdk-18.06.4-x86-64_gcc-7.3.0_musl.Linux-x86_64/staging_dir/target-x86_64_musl/usr/lib
path2 = /home/foo/Desktop/sdk/openwrt-sdk-18.06.4-x86-64_gcc-7.3.0_musl.Linux-x86_64/staging_dir/toolchain-x86_64_gcc-7.3.0_musl/lib32
#path2 = /home/foo/Desktop/sdk/openwrt-sdk-18.06.4-x86-64_gcc-7.3.0_musl.Linux-x86_64/staging_dir/target-x86_64_musl/root-x86/lib
#path2 = /home/foo/Desktop/sdk/openwrt-sdk-18.06.4-x86-64_gcc-7.3.0_musl.Linux-x86_64/staging_dir/host/lib
pcap_retrans: pcap_retrans.o cbuffer.o
$(CC) $(LDFLAGS) -o $@ $^ -L$(path) -lpcap -L$(path2) -libc
%.o: %.c
$(CC) -c $(CFLAGS) -o $@ $<
However, when I try to make it always throws this error:
cc -o pcap_retrans pcap_retrans.o cbuffer.o -L/home/foo/Desktop/sdk/openwrt-sdk-18.06.4-x86-64_gcc-7.3.0_musl.Linux-x86_64/staging_dir/target-x86_64_musl/usr/lib -lpcap - L/home/foo/Desktop/sdk/openwrt-sdk-18.06.4-x86-64_gcc-7.3.0_musl.Linux- x86_64/staging_dir/toolchain-x86_64_gcc-7.3.0_musl/lib32 -libc
/usr/bin/ld: cannot find -libc
collect2: error: ld returned 1 exit status
Makefile:7: recipe for target 'pcap_retrans' failed
make: *** [pcap_retrans] Error 1
I can found libc.so in the 3 path2 variables specified in the Makefile, but everytime I try one of them, it returns this error.
Then, when I make in the root folder of the SDK, no errors occur but the .ipk for my program is nowhere to be found. Help?