brew --env

gistfile1.txt

[Jake@Jake’s MacBook Pro:~]⋙ brew --env 
CC: /usr/bin/clang
CXX: /usr/bin/clang++ => /usr/bin/clang
LD: /usr/bin/clang
CFLAGS: -Os -w -pipe -march=native -Qunused-arguments -mmacosx-version-min=10.8
CXXFLAGS: -Os -w -pipe -march=native -Qunused-arguments -mmacosx-version-min=10.8
CPPFLAGS: -isystem /usr/local/include
LDFLAGS: -L/usr/local/lib
MAKEFLAGS: -j4
MACOSX_DEPLOYMENT_TARGET: 10.8
PKG_CONFIG_PATH: /usr/local/Library/Homebrew/pkgconfig
OBJC: /usr/bin/clang
PATH: /usr/local/bin:/usr/local:/usr/local/sbin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/local/Library/Contributions/cmds
[Jake@Jake’s MacBook Pro:~]⋙