Enabling support for AddressSanitizer in FreeBSD

The question essentially is how to compile a program that uses AddressSanitizer in FreeBSD.

I use FreeBSD 10.0 (64-bit). I am trying to compile the following code with -fsanitize=address flag:

int main() { return 0; } 

When I compile with clang as clang -fsanitize=address file.c, I get the following error message:

/tmp/t-tEh7oh.o: In function `main`: file.c:(.text+0xc4): undefined reference to `__asan_report_store4` /tmp/t-tEh7oh.o: In function `asan.module_ctor`: file.c:(.text+0x119): undefined reference to `__asan_init_v3` clang: error: linker command failed with exit code 1 (use -v to see invocation) 

When I compile with gcc48 as gcc48 -fsanitize=address file.c, I get the following error message:

/usr/local/bin/ld: cannot find -lasan collect2: error: ld returned 1 exit status 

In my GNU/Linux system I have libasan.* files somewhere in a file system. But I am unable to find ones in FreeBSD - neither in /usr/ports, nor via pkg.

How should I better make that working?

Upd. Responding to a comment, I added output of gcc48 -v (more precisely, output of gcc48 -fsanitize=address file.c -v):

Using built-in specs. COLLECT_GCC=gcc48 COLLECT_LTO_WRAPPER=/usr/local/libexec/gcc48/gcc/x86_64-portbld-freebsd10.0/4.8.3/lto-wrapper Target: x86_64-portbld-freebsd10.0 Configured with: ./../gcc-4.8.3/configure --disable-bootstrap --disable-nls --enable-gnu-indirect-function --libdir=/usr/local/lib/gcc48 --libexecdir=/usr/local/libexec/gcc48 --program-suffix=48 --with-as=/usr/local/bin/as --with-gmp=/usr/local --with-gxx-include-dir=/usr/local/lib/gcc48/include/c++/ --with-ld=/usr/local/bin/ld --with-pkgversion='FreeBSD Ports Collection' --with-system-zlib --with-ecj-jar=/usr/local/share/java/ecj-4.5.jar --enable-languages=c,c++,objc,fortran,java --prefix=/usr/local --mandir=/usr/local/man --infodir=/usr/local/info/gcc48 --build=x86_64-portbld-freebsd10.0 Thread model: posix gcc version 4.8.3 (FreeBSD Ports Collection) COLLECT_GCC_OPTIONS='-fsanitize=address' '-v' '-mtune=generic' '-march=x86-64' /usr/local/libexec/gcc48/gcc/x86_64-portbld-freebsd10.0/4.8.3/cc1 -quiet -v file.c -quiet -dumpbase file.c -mtune=generic -march=x86-64 -auxbase t -version -fsanitize=address -o /tmp//ccjvAeJG.s GNU C (FreeBSD Ports Collection) version 4.8.3 (x86_64-portbld-freebsd10.0) compiled by GNU C version 4.2.1 Compatible FreeBSD Clang 3.3 (tags/RELEASE_33/final 183502), GMP version 5.1.3, MPFR version 3.1.2, MPC version 1.0.2 GGC heuristics: --param ggc-min-expand=98 --param ggc-min-heapsize=128184 ignoring nonexistent directory "/usr/local/lib/gcc48/gcc/x86_64-portbld-freebsd10.0/4.8.3/../../../../../x86_64-portbld-freebsd10.0/include" #include "..." search starts here: #include <...> search starts here: /usr/local/lib/gcc48/gcc/x86_64-portbld-freebsd10.0/4.8.3/include /usr/local/include /usr/local/lib/gcc48/gcc/x86_64-portbld-freebsd10.0/4.8.3/include-fixed /usr/include End of search list. GNU C (FreeBSD Ports Collection) version 4.8.3 (x86_64-portbld-freebsd10.0) compiled by GNU C version 4.2.1 Compatible FreeBSD Clang 3.3 (tags/RELEASE_33/final 183502), GMP version 5.1.3, MPFR version 3.1.2, MPC version 1.0.2 GGC heuristics: --param ggc-min-expand=98 --param ggc-min-heapsize=128184 Compiler executable checksum: 6bc4873e12afab16db5dd7bf12b3232f COLLECT_GCC_OPTIONS='-fsanitize=address' '-v' '-mtune=generic' '-march=x86-64' /usr/local/bin/as -v -o /tmp//ccBydWt7.o /tmp//ccjvAeJG.s GNU assembler version 2.24 (x86_64-portbld-freebsd10.0) using BFD version (GNU Binutils) 2.24 COMPILER_PATH=/usr/local/libexec/gcc48/gcc/x86_64-portbld-freebsd10.0/4.8.3/:/usr/local/libexec/gcc48/gcc/x86_64-portbld-freebsd10.0/4.8.3/:/usr/local/libexec/gcc48/gcc/x86_64-portbld-freebsd10.0/:/usr/local/lib/gcc48/gcc/x86_64-portbld-freebsd10.0/4.8.3/:/usr/local/lib/gcc48/gcc/x86_64-portbld-freebsd10.0/:/usr/local/lib/gcc48/gcc/x86_64-portbld-freebsd10.0/4.8.3/../../../../../x86_64-portbld-freebsd10.0/bin/ LIBRARY_PATH=/usr/local/lib/gcc48/gcc/x86_64-portbld-freebsd10.0/4.8.3/:/usr/local/lib/gcc48/gcc/x86_64-portbld-freebsd10.0/4.8.3/../../../../../x86_64-portbld-freebsd10.0/lib/:/usr/local/lib/gcc48/gcc/x86_64-portbld-freebsd10.0/4.8.3/../../../:/lib/:/usr/lib/ COLLECT_GCC_OPTIONS='-fsanitize=address' '-v' '-mtune=generic' '-march=x86-64' /usr/local/libexec/gcc48/gcc/x86_64-portbld-freebsd10.0/4.8.3/collect2 --eh-frame-hdr -V -dynamic-linker /libexec/ld-elf.so.1 /usr/lib/crt1.o /usr/lib/crti.o /usr/local/lib/gcc48/gcc/x86_64-portbld-freebsd10.0/4.8.3/crtbegin.o -L/usr/local/lib/gcc48/gcc/x86_64-portbld-freebsd10.0/4.8.3 -L/usr/local/lib/gcc48/gcc/x86_64-portbld-freebsd10.0/4.8.3/../../../../../x86_64-portbld-freebsd10.0/lib -L/usr/local/lib/gcc48/gcc/x86_64-portbld-freebsd10.0/4.8.3/../../.. /tmp//ccBydWt7.o -lasan -lgcc --as-needed -lgcc_s --no-as-needed -lc -lgcc --as-needed -lgcc_s --no-as-needed /usr/local/lib/gcc48/gcc/x86_64-portbld-freebsd10.0/4.8.3/crtend.o /usr/lib/crtn.o GNU ld (GNU Binutils) 2.24 Supported emulations: elf_x86_64_fbsd elf_i386_fbsd elf_x86_64 elf_i386 elf_l1om elf_l1om_fbsd elf_k1om elf_k1om_fbsd/usr/local/bin/ld: cannot find -lasan collect2: error: ld returned 1 exit status