export PKG_CONFIG_PATH=/opt/gtk3-win32/lib/pkgconfig

tymm@mybox ~/Downloads/pidgin-2.10.9/libpurple/plugins$ i686-w64-mingw32-gcc -O2 -Wall -Waggregate-return -Wcast-align -Wdeclaration-after-statement -Werror-implicit-function-declaration -Wextra -Wno-sign-compare -Wno-unused-parameter -Winit-self -Wmissing-declarations -Wmissing-prototypes -Wnested-externs -Wpointer-arith -Wundef -Wstack-protector -fwrapv -fno-strict-overflow -Wno-missing-field-initializers -Wformat-security -fstack-protector-all --param ssp-buffer-size=1 -pipe -mms-bitfields -g -DHAVE_CYRUS_SASL -DHAVE_CONFIG_H -DWIN32_LEAN_AND_MEAN `pkg-config --cflags --libs gtk+-3.0` -I../.. -I../../libpurple -I../../libpurple/win32 -o command-execute64.dll.o -c command-execute.c