macOS Serria ./configure make error

WeiMBP:driftnet-master wei-mac$ ./configure make configure: WARNING: you should use --build, --host, --target checking for a BSD-compatible install... /usr/bin/install -c checking whether build environment is sane... yes checking for a thread-safe mkdir -p... ./install-sh -c -d checking for gawk... no checking for mawk... no checking for nawk... no checking for awk... awk checking whether make sets $(MAKE)... yes checking whether make supports nested variables... yes checking whether make supports nested variables... (cached) yes checking for make-gcc... no checking for gcc... gcc checking whether the C compiler works... yes checking for C compiler default output file name... a.out checking for suffix of executables... checking whether we are cross compiling... no checking for suffix of object files... o checking whether we are using the GNU C compiler... yes checking whether gcc accepts -g... yes checking for gcc option to accept ISO C89... none needed checking whether gcc understands -c and -o together... rm: conftest.dSYM: is a directory yes checking for style of include used by make... GNU checking dependency style of gcc... gcc3 ./configure: line 3994: PKG_PROG_PKG_CONFIG: command not found checking for make-ar... no checking for make-lib... no checking for make-link... no checking for ar... ar checking the archiver (ar) interface... ar checking for make-ranlib... no checking for ranlib... ranlib checking for pcap_open_live in -lpcap... yes checking for pthread_create in -lpthread... yes checking for g_free in -lglib-2.0... no configure: error: cannot find lib glib-2.x

I found AC_CHECK_LIB([glib-2.0], [g_free], [], [AC_MSG_ERROR([cannot find lib glib-2.x])]) in configure.ac , but my macPro have installed glib-2.50.3. wei-mac$ brew install glib Warning: glib-2.50.3 already installed

how can I debug it?

deiv / driftnet

macOS Serria ./configure make error #17