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[0/4] configure: bugfixes and cleanups for CFLAGS

Message ID 20200920093016.1150346-1-pbonzini@redhat.com
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Series configure: bugfixes and cleanups for CFLAGS | expand

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Paolo Bonzini Sept. 20, 2020, 9:30 a.m. UTC 
Meson is placing -pie after -shared rather than before, and this
causes linking to fail while building the ArchLinux package for
QEMU?

But why is -pie ending up in the flags?  Because LDFLAGS is an
environment variable, and changes to environment variables propagate
when configure does

  LDFLAGS="-pie $LDFLAGS"

This happens without having to export the env. var again.

The solution is to simply rename the CFLAGS and LDFLAGS variables
used for flags that Meson takes care of by itself.  The CFLAGS
variable was previously used for submodules as well, so patches
1 and 2 fix that as well.

Paolo Bonzini (4):
  configure: cleanup invocation of submodule Make
  configure: cleanup CFLAGS and LDFLAGS for submodules
  configure: do not clobber environment CFLAGS/CXXFLAGS/LDFLAGS
  configure: consistently pass CFLAGS/CXXFLAGS/LDFLAGS to meson

 Makefile    | 23 ++++++++++++++---------
 configure   | 47 ++++++++++++++++++++++++++++++-----------------
 meson.build | 13 ++++++++++++-
 3 files changed, 56 insertions(+), 27 deletions(-)