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Allow packages to control handling of compiler flags (#4421)

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* Initial work on flag trapping using functions called <flag>_handler and default_flag_handler

* Update packages so they do not obliterate flags

* Added append to EnvironmentModifications class

* changed EnvironmentModifications to have append_flags method

* changed flag_val to be a tuple

* Increased test coverage

* added documentation of flag handling
This commit is contained in:
becker33
2017-07-19 20:12:00 -07:00
committed by GitHub
parent acca75b368
commit f962aba6ce
16 changed files with 203 additions and 12 deletions
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2
var/spack/repos/builtin/packages/llvm/package.py
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@@ -325,7 +325,7 @@ class Llvm(CMakePackage):
conflicts('+lldb', when='~clang')
def setup_environment(self, spack_env, run_env):
spack_env.set('CXXFLAGS', self.compiler.cxx11_flag)
spack_env.append_flags('CXXFLAGS', self.compiler.cxx11_flag)
def build_type(self):
if '+debug' in self.spec: