[flang] Only have cmake look for libpgmath if LIBPGMATH_DIR is given
authorJean Perier <jperier@nvidia.com>
Wed, 27 Mar 2019 17:13:46 +0000 (10:13 -0700)
committerGitHub <noreply@github.com>
Wed, 27 Mar 2019 17:16:07 +0000 (10:16 -0700)
commit236eeef974f6b04d4468c704aee5f981ce491ca9
tree95b931467ed7a4c440b31ef346a08a0937c78050
parentbe5cfaa5c73ba3baa7b373e91e9d3cd4924363cf
[flang] Only have cmake look for libpgmath if LIBPGMATH_DIR is given

Original-commit: flang-compiler/f18@1d778f5c1a49c2db15c1fc245ea05bb44eb13295
flang/lib/evaluate/CMakeLists.txt